Alcatel OS6250-P24 User manual

Part No. 060303-10, Rev. D
June 2012
OmniSwitch 6250
Hardware Users Guide
www.alcatel-lucent.com
OmniSwitch 6250 Hardware Users Guide
June 2012
i
This user guide documents OmniSwitch 6250 hardware, including
chassis and associated components.
The specifications described in this guide are subject to change without notice.
Copyright © 2012 by Alcatel-Lucent. All rights reserved. This document may not be reproduced in whole
or in part without the express written permission of Alcatel-Lucent.
Alcatel-Lucent® and the Alcatel-Lucent logo are registered trademarks of Alcatel-Lucent. Xylan®,
OmniSwitch®, OmniStack®, and Alcatel-Lucent OmniVista® are registered trademarks of Alcatel-Lucent.
OmniAccess™, Omni Switch/Router™, PolicyView™, RouterView™, SwitchManager™, VoiceView™,
WebView™, X-Cell™, X-Vision™, and the Xylan logo are trademarks of Alcatel-Lucent.
This OmniSwitch product contains components which may be covered by one or more of the following
U.S. Patents:
•U.S. Patent No. 6,339,830
•U.S. Patent No. 6,070,243
•U.S. Patent No. 6,061,368
•U.S. Patent No. 5,394,402
•U.S. Patent No. 6,047,024
•U.S. Patent No. 6,314,106
•U.S. Patent No. 6,542,507
•U.S. Patent No. 6,874,090
26801 West Agoura Road
Calabasas, CA 91301
[email protected]
US Customer Support—(800) 995-2696
Internet—service.esd.alcatel-lucent.com
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Contents
Contents
About This Guide ..........................................................................................................ix
Supported Platforms .......................................................................................................... ix
Who Should Read this Manual? ........................................................................................ xi
When Should I Read this Manual? .................................................................................... xi
What is in this Manual? ..................................................................................................... xi
What is Not in this Manual? .............................................................................................. xi
How is the Information Organized? ................................................................................. xii
Documentation Roadmap ................................................................................................. xii
Related Documentation ................................................................................................... xiv
Published / Latest Product Documentation ...................................................................... xv
Technical Support ............................................................................................................ xv
Chapter 1
OmniSwitch 6250 ....................................................................................................... 1-1
Chassis Configurations ....................................................................................................1-1
OmniSwitch 6250 Feature Overview ..............................................................................1-3
Security Features .............................................................................................................1-3
Applications ....................................................................................................................1-3
Availability Features .......................................................................................................1-4
Software Rollback ....................................................................................................1-4
Hot Swapping ...........................................................................................................1-4
Hardware Monitoring ...............................................................................................1-5
Backup Power Supplies ............................................................................................1-5
Chapter 2
OmniSwitch 6250 Chassis and Hardware Components .................................. 2-1
OmniSwitch 6250-8M .....................................................................................................2-3
OmniSwitch 6250-8M Rear Panel ...........................................................................2-5
OmniSwitch 6250-24M/24MD .......................................................................................2-7
OmniSwitch 6250-24M/24-MD Rear Panel ............................................................2-9
OmniSwitch 6250-24 ....................................................................................................2-12
OmniSwitch 6250-24 Rear Panel ...........................................................................2-14
OmniSwitch 6250-P24 ..................................................................................................2-16
OmniSwitch 6250-P24 Rear Panel .........................................................................2-18
LED Status ............................................................................................................2-20
OS6250 - Power Supplies .............................................................................................2-21
Internal AC Power Supply .....................................................................................2-22
Internal DC Power Supply .....................................................................................2-23
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PS-42W-AC Power Brick ......................................................................................2-24
PS-30W-DC Power Brick ......................................................................................2-25
PS-225W-AC-P PoE Power Supply Module .........................................................2-26
Power Supply Tray .................................................................................................2-27
AC Power Cords ...........................................................................................................2-28
Specifications .........................................................................................................2-28
DC Power Specifications ..............................................................................................2-29
OS6250-24MD Internal DC Power Supply ...........................................................2-29
Backup DC Power Brick ........................................................................................2-29
Stacking Cables .............................................................................................................2-30
Console Port ..................................................................................................................2-31
Port Pinouts ...................................................................................................................2-32
RJ-45 Console Port – Connector Pinout ................................................................2-32
10/100 Ethernet Port – RJ-45 Pinout (non-PoE) ....................................................2-32
Gigabit Ethernet Port – RJ-45 Pinout .....................................................................2-32
10/100/1000 Mbps Power over Ethernet Port – RJ-45 Pinout ..............................2-33
Overtemp Condition ......................................................................................................2-33
Dying Gasp .................................................................................................................... 2-34
Scenarios ................................................................................................................2-34
SNMP Trap ......................................................................................................2-34
Syslog Message ...............................................................................................2-34
Link OAM PDU ..............................................................................................2-34
Chapter 3
Mounting OS6250 Switches ..................................................................................... 3-1
Chassis Components ................................................................................................3-1
Available Mounting Kits ..........................................................................................3-2
General Installation Recommendations ..........................................................................3-3
Cooling Recommendations ......................................................................................3-3
Recommended Clearances .......................................................................................3-4
Mechanical Loading .................................................................................................3-4
Circuit Overloading ..................................................................................................3-4
Reliable Earthing ......................................................................................................3-4
Power Supply Information ..............................................................................................3-5
Assembling OS6250 Switches ........................................................................................3-6
Assembly Guidelines ................................................................................................3-6
Attaching the Power Supply Tray on Side of Chassis .............................................3-6
OS6250-RM-19 - Power supply tray side installation ......................................3-6
OS6250-DUAL-MNT - Attaching Two Chassis Side-by-Side ..............................3-10
Attaching Power Supply Tray to Rear of Chassis ..................................................3-12
Securing Power Supplies in Power Supply Tray ...................................................3-13
Power Supply Brick Installation ......................................................................3-13
Power Supply Module Installation ..................................................................3-14
Mounting OS6250 Switches .........................................................................................3-15
Rack-Mounting OS6250 Switches .........................................................................3-15
General Rack-Mounting Guidelines ................................................................3-15
Rack-Mounting Installation .............................................................................3-15
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Power Supply Tray - Removeable Section ......................................................3-17
OS6250-RM-19-L - Mounting Instructions ....................................................3-18
OS6250-REAR-MNT - Mounting Instructions ...............................................3-19
Steps ......................................................................................................................3-19
Completed Assembly .............................................................................................3-20
Table-Mounting OS6250 Switches ........................................................................3-21
General Table-Mounting Guidelines ...............................................................3-21
Table-Mounting Installation ............................................................................3-21
Wall-Mounting the OS6250-8M ............................................................................3-23
General Wall-Mounting Guidelines ................................................................3-23
OS6250-WALL-MNT - Wall-Mounting Installation ......................................3-24
Connecting Chassis to Power Source ............................................................................3-26
AC Power Supply Connections ..............................................................................3-26
Powering On a Chassis ....................................................................................3-26
OS6250-24MD Internal DC Power Supply Connections ................................3-27
Backup DC Power Brick Connections ............................................................3-27
Securing the Redundant DC Power Supply Connector ...................................3-28
Installing DC Power Source Wire Leads .........................................................3-29
Hot-Swapping Power Supplies ...............................................................................3-31
Chapter 4
Booting 6250 Switches .............................................................................................. 4-1
Booting an OmniSwitch 6250 ..................................................................................4-1
Console Port ....................................................................................................................4-2
Serial Connection Default Settings ..........................................................................4-2
Modifying the Serial Connection Settings ...............................................................4-2
Viewing the Power Supply Status .....................................................................4-4
Monitoring the Chassis ...................................................................................................4-5
Checking the Overall Chassis Status ........................................................................4-5
Checking the Temperature Status ............................................................................4-5
Checking the Fan Status ...........................................................................................4-6
Checking the Power Supply Status ..........................................................................4-6
Additional Monitoring Commands ..........................................................................4-6
Using LEDs to Visually Monitor the Chassis ..........................................................4-7
Installing SFP and XFP Transceivers .......................................................................4-7
Chapter 5
Managing Power over Ethernet (PoE) .................................................................. 5-1
In This Chapter ................................................................................................................5-2
Power over Ethernet Specifications ................................................................................5-3
Viewing PoE Power Supply Status .................................................................................5-4
Configuring Power over Ethernet Parameters .................................................................5-5
Power over Ethernet Defaults ..................................................................................5-5
Understanding and Modifying the Default Settings .................................................5-5
Setting the PoE Operational Status ....................................................................5-5
Configuring the Total Power Available to a Port ..............................................5-6
Configuring the Total Power Available to a Switch .........................................5-6
Setting Port Priority Levels ...............................................................................5-7
Understanding Priority Disconnect .................................................................................5-8
Setting Priority Disconnect Status ............................................................................5-8
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Disabling Priority Disconnect ...........................................................................5-8
Enabling Priority Disconnect ............................................................................5-8
Priority Disconnect is Enabled; Same Priority Level on All PD .......................5-9
Priority Disconnect is Enabled; Incoming PD Port has Highest Priority Level 5-9
Priority Disconnect is Enabled; Incoming PD Port has Lowest Priority Level 5-9
Priority Disconnect is Disabled .......................................................................5-10
Monitoring Power over Ethernet via CLI .....................................................................5-11
Chapter 6
Managing OmniSwitch 6250 Stacks ..................................................................... 6-1
In This Chapter ................................................................................................................6-2
OmniSwitch 6250 Stacking Specifications .....................................................................6-3
Changing Stacking Mode on Metro Models ............................................................6-3
OmniSwitch 6250 Stack Overview .................................................................................6-4
Roles Within the Stack ....................................................................................................6-4
Primary and Secondary Management Modules .......................................................6-4
Primary Management Module Selection ...........................................................6-7
Secondary Management Module Selection .....................................................6-10
Idle Module Role ....................................................................................................6-12
Pass-Through Mode ...............................................................................................6-13
Recovering from Pass-Through Mode (Duplicate Slot Numbers) ..................6-14
Stack Cabling ................................................................................................................6-17
Redundant Stacking Cable Connection ..................................................................6-18
Checking Redundant Stacking Cable Status ..........................................................6-19
Slot Numbering .............................................................................................................6-20
Dynamic Slot Number Assignment ........................................................................6-21
Manual Slot Number Assignment ..........................................................................6-23
Reverting to the Dynamic Slot Numbering Model ..........................................6-24
Hot-Swapping Modules In a Stack ...............................................................................6-25
Removing Switches from an Existing Stack ..........................................................6-25
Inserting Switches Into an Existing Stack ..............................................................6-25
Merging Stacks .......................................................................................................6-26
Reloading Switches .......................................................................................................6-27
Reloading the Primary Management Module ........................................................6-27
Reloading the Secondary Management Module ....................................................6-29
Reloading Switches with Idle Roles .......................................................................6-31
Reloading Switches in Pass-Through Mode ..........................................................6-31
Reloading All Switches in a Stack .........................................................................6-32
Software Synchronization During a Full Reload .............................................6-32
Effects of Saved Slot Number Information on the Reload Process .................6-32
Avoiding Split Stacks .............................................................................................6-34
Changing the Secondary Module to Primary ................................................................6-35
Synchronizing Switches in a Stack ...............................................................................6-37
Automatic Synchronization During a Full Reload .................................................6-37
Monitoring the Stack .....................................................................................................6-38
Visually Monitoring the Stack ...............................................................................6-38
CLI Commands Supported on Both Primary and
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Contents
Secondary Management Modules ..........................................................................6-39
Appendix A
Regulatory Compliance and Safety Information .............................................. A-1
Declaration of Conformity: CE Mark ............................................................................ A-1
China RoHS: Hazardous Substance Table ..................................................................... A-2
Waste Electrical and Electronic Equipment (WEEE) Statement ................................... A-4
Standards Compliance .................................................................................................... A-5
Safety Agency Certifications .................................................................................. A-5
EMI/EMC Standards ............................................................................................... A-5
FCC Class A, Part 15 .............................................................................................. A-6
Canada Class A Statement ...................................................................................... A-6
JATE ........................................................................................................................ A-6
CISPR22 Class A warning ...................................................................................... A-6
VCCI ....................................................................................................................... A-7
Class A Warning for Taiwan and Other Chinese Markets ...................................... A-7
Translated Safety Warnings ........................................................................................... A-8
Chassis Lifting Warning ................................................................................... A-8
Electrical Storm Warning ................................................................................. A-8
Installation Warning ......................................................................................... A-9
Invisible Laser Radiation Warning ................................................................... A-9
Power Disconnection Warning ......................................................................... A-9
Proper Earthing Requirement Warning ............................................................ A-9
Read Important Safety Information Warning ................................................. A-11
Restricted Access Location Warning ............................................................. A-11
Wrist Strap Warning ....................................................................................... A-12
Instrucciones de seguridad en español ......................................................................... A-13
Advertencia sobre el levantamiento del chasis ............................................... A-13
Advertencia de las tapaderas en blanco .......................................................... A-13
Advertencia en caso de tormenta eléctrica ..................................................... A-13
Advertencia de instalación ............................................................................. A-13
Advertencia de radiación láser invisible ......................................................... A-13
Advertencia de la batería de litio .................................................................... A-13
Advertencia sobre la tensión de operación ..................................................... A-13
Advertencia sobre la desconexión de la fuente .............................................. A-13
Advertencia sobre una apropiada conexión a tierra ....................................... A-14
Leer “información importante de seguridad” ................................................. A-14
Advertencia de acceso restringido .................................................................. A-14
Advertencia de pulsera antiestática ................................................................ A-14
Clase de seguridad .......................................................................................... A-14
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OmniSwitch 6250 Hardware Users Guide
June 2012
About This Guide
This OmniSwitch 6250 Hardware Users Guide describes your switch hardware components and basic
switch hardware procedures.
Supported Platforms
The information in this guide applies to the following products:
• OmniSwitch 6250-8M
• OmniSwitch 6250-24M
• OmniSwitch 6250-24MD
• OmniSwitch 6250-24
• OmniSwitch 6250-P24
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Supported Platforms
About This Guide
Unsupported Platforms
The information in this guide does not apply to the following products:
• OmniSwitch (original version with no numeric model name)
• OmniSwitch 6400 Series
• OmniSwitch 6600 Series
• OmniSwitch 6800 Series
• OmniSwitch 6850 Series
• OmniSwitch 6855 Series
• OmniSwitch 7700
• OmniSwitch 7800
• OmniSwitch 8800
• OmniSwitch 9000 Series
• OmniStack
• OmniAccess
page x
OmniSwitch 6250 Hardware Users Guide
June 2012
About This Guide
Who Should Read this Manual?
Who Should Read this Manual?
The audience for this users guide is network administrators and IT support personnel who need to configure, maintain, and monitor switches and routers in a live network. However, anyone wishing to gain
knowledge on the OmniSwitch 6250 hardware will benefit from the material in this guide.
When Should I Read this Manual?
Read this guide as soon as you are ready to familiarize yourself with your switch hardware components.
You should have already stepped through the first login procedures and read the brief hardware overviews
in the OmniSwitch 6250 Getting Started Guide.
You should already be familiar with the very basics of the switch hardware, such as module LEDs and
module installation procedures. This manual will help you understand your switch hardware components
(e.g., chassis, stacking and cables, backup power supplies, etc.) in greater depth.
What is in this Manual?
This users guide includes the following hardware-related information:
• Descriptions of switch configurations.
• Descriptions of “availability” features.
• Descriptions of chassis types (e.g., the OS6250-24).
• Instructions for mounting the chassis.
• Descriptions of hardware components (status LEDs, chassis, cables, backup power supplies, etc.).
• Managing a chassis.
• Hardware-related Command Line Interface (CLI) commands
What is Not in this Manual?
The descriptive and procedural information in this manual focuses on switch hardware. It includes information on some CLI commands that pertain directly to hardware configuration, but it is not intended as a
software users guide. There are several OmniSwitch 6250 users guides that focus on switch software
configuration. Consult those guides for detailed information and examples for configuring your switch
software to operate in a live network environment. See “Documentation Roadmap” on page -xii and
“Related Documentation” on page -xiv for further information on software configuration guides available
for your switch.
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How is the Information Organized?
About This Guide
How is the Information Organized?
This users guide provides an overview of OmniSwitch 6250 switches, specifications of the hardware
components, steps for setting up and managing OmniSwitch 6250 switches, and an overview and procedures for managing Power over Ethernet (PoE).
Documentation Roadmap
The OmniSwitch user documentation suite was designed to supply you with information at several critical
junctures of the configuration process.The following section outlines a roadmap of the manuals that will
help you at each stage of the configuration process. Under each stage, we point you to the manual or
manuals that will be most helpful to you.
Stage 1: Using the Switch for the First Time
Pertinent Documentation: Getting Started Guide
Release Notes
The Getting Started Guide provides all the information you need to get your switch up and running the
first time. This guide provides information on unpacking the switch, installing power supplies, unlocking
access control, setting the switch’s IP address, and setting up a password. It also includes succinct overview information on fundamental aspects of the switch, such as hardware LEDs, the software directory
structure, stacking, CLI conventions, and web-based management.
At this time you should also familiarize yourself with the Release Notes that accompanied your switch.
This document includes important information on feature limitations that are not included in other user
guides.
Stage 2: Gaining Familiarity with Basic Switch Functions
Pertinent Documentation: Hardware Users Guide
Switch Management Guide
Once you have your switch up and running, you will want to begin investigating basic aspects of its hard
ware and software. Information about switch hardware is provided in the Hardware Users Guide. This
guide provide specifications, illustrations, and descriptions of all hardware components—e.g., chassis,
backup power supplies, etc.
The Switch Management Guide is the primary user guide for the basic software features on a switch. This
guide contains information on the switch directory structure, basic file and directory utilities, switch access
security, SNMP, and web-based management. It is recommended that you read this guide before connecting your switch to the network.
page xii
OmniSwitch 6250 Hardware Users Guide
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About This Guide
Documentation Roadmap
Stage 3: Integrating the Switch Into a Network
Pertinent Documentation: Network Configuration Guide
When you are ready to connect your switch to the network, you will need to learn how the OmniSwitch
implements fundamental software features, such as 802.1Q, VLANs, and Spanning Tree. The Network
Configuration Guide contains overview information, procedures and examples on how standard networking technologies are configured in the OmniSwitch 6250.
Anytime
The OmniSwitch CLI Reference Guide contains comprehensive information on all CLI commands
supported by the switch. This guide includes syntax, default, usage, example, related CLI command, and
CLI-to-MIB variable mapping information for all CLI commands supported by the switch. This guide can
be consulted anytime during the configuration process to find detailed and specific information on each
CLI command.
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Related Documentation
About This Guide
Related Documentation
The following are the titles and descriptions of all the OmniSwitch 6250 user manuals:
• OmniSwitch 6250 Getting Started Guide
Describes the hardware and software procedures for getting an OmniSwitch 6250 switch up and
running. Also provides information on fundamental aspects of OmniSwitch software.
• OmniSwitch 6250 Hardware Users Guide
Detailed technical specifications and procedures for the OmniSwitch 6250 chassis and components.
This manual also includes comprehensive information on assembling and managing stacked configurations.
• OmniSwitch 6250/6450 CLI Reference Guide
Complete reference to all CLI commands supported on the OmniSwitch Series of products. Includes
syntax definitions, default values, examples, usage guidelines and CLI-to-MIB variable mappings.
• OmniSwitch 6250/6450 Switch Management Guide
Includes procedures for readying an individual switch for integration into a network. Topics include the
software directory architecture, image rollback protections, authenticated switch access, managing
switch files, system configuration, using SNMP, and using web management software (WebView).
• OmniSwitch 6250/6450 Network Configuration Guide
Includes network configuration procedures and descriptive information on all the major software
features and protocols included in the base software package. Chapters cover Layer 2 information
(Ethernet and VLAN configuration), Layer 3 information (routing protocols, such as RIP), security
options (authenticated VLANs), Quality of Service (QoS), and link aggregation.
• OmniSwitch 6250/6450 Transceivers Guide
Includes SFP and XFP transceiver specifications and product compatibility information.
• Technical Tips, Field Notices
Includes information published by Alcatel-Lucent’s Customer Support group.
• Release Notes and Upgrade Instructions
Includes open problem reports, feature exceptions, and other important information on the features
supported in the current release and any limitations to their support.
page xiv
OmniSwitch 6250 Hardware Users Guide
June 2012
About This Guide
Published / Latest Product Documentation
Published / Latest Product Documentation
All user guides for the OmniSwitch 6250 are included on the Alcatel-Lucent public website. This website
also includes user guides for other Alcatel-Lucent Enterprise products.
The latest user guides can be found on our website at:
http://enterprise.alcatel-lucent.com/?dept=UserGuides&page=Portal
Technical Support
An Alcatel-Lucent service agreement brings your company the assurance of 7x24 no-excuses technical
support. You’ll also receive regular software updates to maintain and maximize your Alcatel-Lucent product’s features and functionality and on-site hardware replacement through our global network of highly
qualified service delivery partners. Additionally, with 24-hour-a-day access to Alcatel-Lucent’s Service
and Support web page, you’ll be able to view and update any case (open or closed) that you have reported
to Alcatel-Lucent’s technical support, open a new case or access helpful release notes, technical bulletins,
and manuals. For more information on Alcatel-Lucent’s Service Programs, see our web page at
service.esd.alcatel-lucent.com, call us at 1-800-995-2696, or email us at [email protected].
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Technical Support
page xvi
About This Guide
OmniSwitch 6250 Hardware Users Guide
June 2012
1
OmniSwitch 6250
The Alcatel-Lucent OmniSwitch 6250 is a set of stackable switches designed for Enterprise and Metro
applications providing Fast Ethernet connectivity with Advanced Layer 2 software and basic routing.
OS6250-8M
OS6250-24M
OS6250-24MD
OS6250-24
OS6250-P24
OS6250 Switches
Chassis Configurations
OmniSwitch 6250 (OS6250) switches offer port densities of up to 24 Fast Ethernet ports. The following
OS6250 chassis configurations are available:
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Chassis Configurations
OmniSwitch 6250
Metro Models
• OS6250-8M: Provides eight (8) Fast Ethernet ports, two (2) combo ports, two (2) non-combo fiber
ports, and an internal AC power supply.
• OS6250-24M: Provides twenty-four (24) Fast Ethernet ports, two (2) combo ports, two (2) non-combo
fiber ports, an internal AC power supply, and optional redundant external power supply.
• OS6250-24MD: Provides twenty-four (24) Fast Ethernet ports, two (2) combo ports, two (2) non-
combo fiber ports, an internal DC power supply, and optional redundant external power supply.
Enterprise Models
• OS6250-24: Provides twenty-four (24) Fast Ethernet ports, two (2) combo ports, two HDMI stacking
ports, an internal AC power supply, and optional external redundant power supply.
• OS6250-P24: Provides twenty-four (24) PoE Fast Ethernet ports, two (2) combo ports, two (2) HDMI
stacking ports, and external primary and redundant power supplies.
Combo Ports
Combo ports are individually configurable to be 10/100/1000BaseT or 100/1000X that can support SFP
transceivers for short, long and very long distances.
Non-combo Fiber Ports
The non-combo fiber ports provide uplink or stacking capability through the use of the SFP+ ports.
HDMI Ports
The HDMI ports provide stacking capability through the use of Alcatel-Lucent proprietary stacking cables.
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OmniSwitch 6250
OmniSwitch 6250 Feature Overview
OmniSwitch 6250 Feature Overview
Security Features
OmniSwitch 6250 switches offer extensive security features for network access control, policy enforcement and attack containment, enabling fully secure networks and OmniVista Network Management
System (NMS) support.
Applications
Well-suited for traditional enterprise network applications as well as Metro deployments.
• Small and Medium sized Enterprise (SME)
• Metro Ethernet Access
• Residence and business deployments
• Carrier Ethernet (e.g., Telco, CityNets, Metro access)
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Availability Features
OmniSwitch 6250
Availability Features
OmniSwitch 6250 switches incorporate advanced Alcatel-Lucent Operating System (AOS) protocols to
ensure high availability for mission critical applications. Availability features are hardware- and softwarebased safeguards that help to prevent the loss of data flow in the unlikely event of a subsystem failure.
In addition, some availability features allow users to maintain or replace hardware components without
powering off the switch or interrupting switch operations. Combined, these features provide added
resiliency and help to ensure that the switch or virtual chassis is consistently available for high-impact
network operations.
Hardware-related availability features include:
• Software Rollback
• Hot Swapping
• Hardware Monitoring
• Backup Power Supplies
Software Rollback
Software rollback (also referred to as image rollback) essentially allows the switch to return to a prior “last
known good” version of software in the event of a system software problem. The switch controls software
rollback through its resilient directory structure design
(i.e., /flash/working and /flash/certified).
For detailed information on the software rollback feature, as well as the switch’s /flash/working and
/flash/certified directories, refer to the “Managing CMM Directory Content” chapter in the Switch
Management Guide.
Hot Swapping
Hot swapping refers to the action of adding, removing, or replacing components without powering off
switches or disrupting other components.This feature facilitates hardware upgrades and maintenance and
allows users to easily replace components in the unlikely event of hardware failure.
The following components can be hot swapped:
• Backup power supplies
• Power supply connector cables
• SFPs
Note. For instructions on hot swapping backup power supplies, refer to Chapter 3, “Mounting OS6250
Switches” For instructions on hot swapping combo connector SFPs, refer to the instruction card provided
with the SFP.
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OmniSwitch 6250
Availability Features
Hardware Monitoring
Automatic Monitoring
Automatic monitoring refers to the switch’s built-in sensors that automatically monitor operations. If an
error is detected (e.g., over-threshold temperature), the switch immediately sends a trap to the user. The
trap is displayed on the console in the form of a text error message.
LEDs
LEDs, which provide visual status information, are provided on the chassis front panel. LEDs are used to
indicate conditions such as hardware and software status, temperature errors, link integrity, data flow, etc.
For detailed LED descriptions, refer to Chapter 2, “OmniSwitch 6250 Chassis and Hardware Components.”
User-Driven Monitoring
User-driven hardware monitoring refers to CLI commands that are entered by the user in order to access
the current status of hardware components. The user enters “show” commands that output information to
the console. Monitoring information for chassis components, such as the optional back up power supply,
chassis temperature sensor, and chassis fans is provided in Chapter 2, “OmniSwitch 6250 Chassis and
Hardware Components.” The show commands for all the features are described in detail in the
OmniSwitch CLI Reference Guide.
Backup Power Supplies
Some OmniSwitch 6250 switches support an optional backup power supply. Backup power supplies operate in active standby mode. If the primary power supply fails unexpectedly, the backup power supply automatically takes up the full power load without disrupting the switch.
Note. For more information on power supplies, refer to Chapter 2, “OmniSwitch 6250 Chassis and Hardware Components.”
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Availability Features
page 1-6
OmniSwitch 6250
OmniSwitch 6250 Hardware Users Guide
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2 OmniSwitch 6250
Chassis and Hardware
Components
OmniSwitch 6250 switches are available in the chassis configurations as shown in the table below:
• OmniSwitch 6250-8M
Eight port stackable Metro model.
(OS6250-8M)
• OmniSwitch 6250-24M
Twenty-four port stackable Metro model.
(OS6250-24M)
• OmniSwitch 6250-24MD
Twenty-four port stackable Metro model with DC power.
(OS6250-24MD)
• OmniSwitch 6250-24
Twenty-four port stackable Enterprise model.
(OS6250-24)
• OmniSwitch 6250-P24
Twenty-four port stackable Enterprise model with PoE.
(OS6250-P24)
OmniSwitch 6250 Hardware Users Guide
June 2012
page 2-1
OmniSwitch 6250 Chassis and Hardware Components
This chapter includes detailed information on these chassis types. Topics include:
• OmniSwitch 6250 chassis descriptions
• Technical specifications
• Power Supplies
• Stacking cables and power cords
• Console port and pinout specifications
page 2-2
OmniSwitch 6250 Hardware Users Guide
June 2012
OmniSwitch 6250 Chassis and Hardware Components
OmniSwitch 6250-8M
OmniSwitch 6250-8M
The OS6250-8M chassis contains the following major components:
• System status LEDs
• (8) Unshared 10/100Base-T ports
• (2) Non-combo 100/1000BaseX or SFP+ Stacking ports
• (2) Combo 10/100/1000Base-T or 100/1000BaseX ports
• Internal AC Power Supply
• Console port (RJ-45)
• USB port (USB 2.0)
Note. USB port is not supported in this release.
OmniSwitch 6250 Hardware Users Guide
June 2012
page 2-3
OmniSwitch 6250-8M
OmniSwitch 6250 Chassis and Hardware Components
OmniSwitch 6250-8M Front Panel.
B
A
C
D
E
F
G
OS6250-8M Front Panel
Item
Description
A
System Status LEDs
Provides status on hardware, software, stacking and power.
B
Console Port
RS-232 console port with an RJ-45 connector. Provides access to the CLI for
configuration and management.
C
10/100BaseT RJ-45 Ports
10/100BaseT non-combo ports. Odd-numbered ports are on top row, evennumbered ports are on bottom row.
D
10/100/1000BaseT or 100/1000BaseX SFP Combo Ports
Two 10/100/1000BaseT or SFP combo ports for various supported SFP
transceivers.
E
SFP Uplink or SFP+ Stacking Ports
Two SFP or SFP+ ports to be used for uplink or stacking.
F
USB Port
High speed USB 2.0 port.
G
Push Button
When pushed all LEDs will turn off and the LED of the Stack ID will remain
lit.
Refer to “LED Status” on page 2-20 for LED status information.
page 2-4
OmniSwitch 6250 Hardware Users Guide
June 2012
OmniSwitch 6250 Chassis and Hardware Components
OmniSwitch 6250-8M
OmniSwitch 6250-8M Rear Panel
Note. The figure shows a pre-production version of the chassis without product, safety, and compliance
information labels. All production versions of the chassis have these labels.
A
B
OS620-8M Rear Panel
Item
Description
A
Grounding Block
Type LCD8-10A-L grounding lug
B
Power Supply Connector
Internal AC power supply.
OmniSwitch 6250 Hardware Users Guide
June 2012
page 2-5
OmniSwitch 6250-8M
OmniSwitch 6250 Chassis and Hardware Components
OS6250-8M Specifications
Total unshared 10/100BaseT
ports per switch
8 (1-8)
Total combo ports per switch
2 (9-10)
Total non-combo SFP ports per
switch
2 (11-12 in Uplink mode), (STK A, STK B Stacking mode)
Total 802.3af PoE ports per
switch
N/A
Flash memory size
128 MB
RAM memory size
256 MB SDRAM
Chassis Width
8.5 inches (21.5 cm)
Chassis Height
1.73 inches (4.4 cm)
Chassis Height (rack units)
1 RU
Chassis Depth
11.5 inches (29.21 cm)
Weight
3.80 lbs (1.72kg)
Operating Humidity
5% to 95% non-condensing
Storage Humidity
10% to 95% non-condensing
Operating Temperature
0C to +45C
Storage Temperature
-40C to +70C
Data rate (RJ-45)
10 or 100 Mbps (full or half duplex)
1 Gigabit per second (full duplex)
Upper Threshold Temperature
85C
Danger Threshold Temperature
90C
Data rate (SFP)
100/1000 Mbps (full duplex)
Maximum frame size
9216 bytes
Cable supported
(RJ-45)
10BaseT: unshielded twisted-pair (UTP)
100BaseTX: unshielded twisted-pair (UTP), Category 5, EIA/TIA 568
or shielded twisted-pair (STP), Category 5, 100 ohm
1000BaseT: unshielded twisted-pair (UTP), Category 5e
Maximum cable distance
(RJ-45)
100 meters
page 2-6
OmniSwitch 6250 Hardware Users Guide
June 2012
OmniSwitch 6250 Chassis and Hardware Components
OmniSwitch 6250-24M/24MD
OmniSwitch 6250-24M/24MD
The OS6250-24M chassis contains the following major components:
• System status LEDs
• (24) Unshared 10/100Base-T ports
• (2) Non-combo 100/1000BaseX or SFP+ Stacking Ports
• (2) Combo 10/100/1000Base-T or 100/1000BaseX
• Internal AC Power Supply (24M)
• Internal DC Power Supply (24MD)
• External BPS
• Console port (RJ-45)
• USB port (USB 2.0)
Note. USB port is not supported in this release.
OmniSwitch 6250 Hardware Users Guide
June 2012
page 2-7
OmniSwitch 6250-24M/24MD
OmniSwitch 6250 Chassis and Hardware Components
OmniSwitch 6250-24M/24-MD Front Panel
B
A
C
OS6250-24M/24-MD Front Panel
Item
Description
A
System Status LEDs
Provides status on hardware, software, primary and redundant power.
B
10/100/1000BaseT or 100/1000BaseX SFP Combo Ports
Two 10/100/1000BaseT or SFP combo ports for various supported SFP
transceivers.
C
10/100BaseT RJ-45 Ports
10/100BaseT non-combo ports. Odd-numbered ports are on top row, evennumbered ports are on bottom row.
Refer to “LED Status” on page 2-20 for LED status information.
page 2-8
OmniSwitch 6250 Hardware Users Guide
June 2012
OmniSwitch 6250 Chassis and Hardware Components
OmniSwitch 6250-24M/24MD
OmniSwitch 6250-24M/24-MD Rear Panel
Note. The figure shows a pre-production version of the chassis without product, safety, and compliance
information labels. All production versions of the chassis have these labels.
C
B
A
D
E
F
G
OS6250-24M Rear Panel
H
OS6250-24MD Rear Panel
Item
Description
A
Push Button
When pushed all LEDs will turn off and the LED of the Stack ID
will remain lit.
B
Console Port
RS-232 console port with an RJ-45 connector. Provides access to
the CLI for configuration and management.
C
Grounding Block
Type LCD8-10A-L grounding lug
D
USB Port
High speed USB 2.0 port.
OmniSwitch 6250 Hardware Users Guide
June 2012
page 2-9
OmniSwitch 6250-24M/24MD
OmniSwitch 6250 Chassis and Hardware Components
Item
Description
E
SFP Uplink or SFP+ Stacking Ports
Two SFP or SFP+ ports to be used for uplink or stacking.
F
BPS Connector
G
Power Supply Connector
Internal AC power supply.
H
DC Power Supply Connector
Refer to “LED Status” on page 2-20 for LED status information.
page 2-10
OmniSwitch 6250 Hardware Users Guide
June 2012
OmniSwitch 6250 Chassis and Hardware Components
OmniSwitch 6250-24M/24MD
OS6250-24M/24-MD Specifications
Total unshared 10/100BaseT
ports per switch
24 (1-24)
Total combo ports per switch
2 (25-26)
Total non-combo SFP ports per
switch
2 (27-28 in Uplink mode), (STK A, STK B Stacking mode)
Total 802.3af PoE ports per
switch
N/A
Flash memory size
128 MB
RAM memory size
256 MB SDRAM
Chassis Width
8.5 inches (21.5 cm)
Chassis Height
1.73 inches (4.4 cm)
Chassis Height (rack units)
1 RU
Chassis Depth
11.5 inches (29.21 cm)
Weight
3.80 lbs (1.72 kg)
Operating Humidity
5% to 95% non-condensing
Storage Humidity
10% to 95% non-condensing
Operating Temperature
0C to +45C
Storage Temperature
-40C to +70C
Upper Threshold Temperature
99C
Danger Threshold Temperature
105C
Data rate (RJ-45)
10 or 100 Mbps (full or half duplex)
1 Gigabit per second (full duplex)
Data rate (SFP)
100/1000 Mbps (full duplex)
Maximum frame size
9216 bytes
Cable supported
(RJ-45)
10BaseT: unshielded twisted-pair (UTP)
100BaseTX: unshielded twisted-pair (UTP), Category 5, EIA/TIA 568
or shielded twisted-pair (STP), Category 5, 100 ohm
1000BaseT: unshielded twisted-pair (UTP), Category 5e
Maximum cable distance
(RJ-45)
100 meters
OmniSwitch 6250 Hardware Users Guide
June 2012
page 2-11
OmniSwitch 6250-24
OmniSwitch 6250 Chassis and Hardware Components
OmniSwitch 6250-24
The front panel of the OS6250-24 chassis contains the following major components:
• System status LEDs
• (24) Unshared 10/100Base-T ports
• (2) Combo 10/100/1000Base-T or 100/1000BaseX
• (2) HDMI Stacking Ports
• Internal AC Power Supply
• External BPS
• Console port (RJ-45)
• USB port (USB 2.0)
Note. USB port is not supported in this release.
page 2-12
OmniSwitch 6250 Hardware Users Guide
June 2012
OmniSwitch 6250 Chassis and Hardware Components
OmniSwitch 6250-24
OmniSwitch 6250-24 Front Panel.
B
A
C
OS6250-24 Front Panel
Item
Description
A
System Status LEDs
Provides status on hardware, software, primary and redundant power.
B
10/100/1000BaseT or 100/1000BaseX SFP Combo Ports
Two 10/100/1000BaseT or SFP combo ports for various supported SFP
transceivers.
C
10/100BaseT RJ-45 Ports
10/100BaseT non-combo ports. Odd-numbered ports are on top row, evennumbered ports are on bottom row.
Refer to “LED Status” on page 2-20 for LED status information.
OmniSwitch 6250 Hardware Users Guide
June 2012
page 2-13
OmniSwitch 6250-24
OmniSwitch 6250 Chassis and Hardware Components
OmniSwitch 6250-24 Rear Panel
Note. The figure shows a pre-production version of the chassis without product, safety, and compliance
information labels. All production versions of the chassis have these labels.
C
B
A
D
E
F
G
OS6250-24 Rear Panel
Item
Description
A
Push Button
When pushed all LEDs will turn off and the LED of the Stack ID
will remain lit.
B
Console Port
RS-232 console port with an RJ-45 connector. Provides access to
the CLI for configuration and management.
C
Grounding Block
Type LCD8-10A-L grounding lug
D
USB Port
High speed USB 2.0 port.
E
HDMI Stacking Connectors
Connectors for use in stacking switches into a virtual chassis or as
an uplink port.
F
BPS Connector
G
Power Supply Connector
Internal AC power supply.
Refer to “LED Status” on page 2-20 for LED status information.
page 2-14
OmniSwitch 6250 Hardware Users Guide
June 2012
OmniSwitch 6250 Chassis and Hardware Components
OmniSwitch 6250-24
OS6250-24 Specifications
Total unshared 10/100BaseT
ports per switch
24 (1-24)
Total combo ports per switch
2 (25-26)
Total HDMI ports per switch
2 (Stack A, Stack B)
Total 802.3af PoE ports per
switch
N/A
Flash memory size
128 MB
RAM memory size
256 MB SDRAM
Chassis Width
8.5 inches (21.5 cm)
Chassis Height
1.73 inches (4.4 cm)
Chassis Height (rack units)
1 RU
Chassis Depth
11.5 inches (29.21 cm)
Weight
3.80 lbs (1.72 kg)
Operating Humidity
5% to 95% non-condensing
Storage Humidity
10% to 95% non-condensing
Operating Temperature
0C to +45C
Storage Temperature
-40C to +70C
Upper Threshold Temperature
98C
Danger Threshold Temperature
105C
Data rate (RJ-45)
10 or 100 Mbps (full or half duplex)
1 Gigabit per second (full duplex)
Data rate (SFP)
100/1000 Mbps (full duplex)
Maximum frame size
9216 bytes
Cable supported
(RJ-45)
10BaseT: unshielded twisted-pair (UTP)
100BaseTX: unshielded twisted-pair (UTP), Category 5, EIA/TIA 568
or shielded twisted-pair (STP), Category 5, 100 ohm
1000BaseT: unshielded twisted-pair (UTP), Category 5e
Maximum cable distance
(RJ-45)
100 meters
OmniSwitch 6250 Hardware Users Guide
June 2012
page 2-15
OmniSwitch 6250-P24
OmniSwitch 6250 Chassis and Hardware Components
OmniSwitch 6250-P24
The front panel of the OS6250-P24 chassis contains the following major components:
• System status LEDs
• (24) Unshared 10/100Base-T PoE (802.3at first 6 ports and combo, 802.3af remaining ports) ports
• (2) Combo 10/100/1000Base-T or 100/1000BaseX
• (2) HDMI Stacking Ports
• External Power Supply
• External BPS
• Internal Fan
• Console port (RJ-45)
• USB port (USB 2.0)
Note. USB port is not supported in this release.
page 2-16
OmniSwitch 6250 Hardware Users Guide
June 2012
OmniSwitch 6250 Chassis and Hardware Components
OmniSwitch 6250-P24
OmniSwitch 6250-P24 Front Panel
B
A
C
OS6250-P24 Front Panel - Update
Item
Description
A
System Status LEDs
Provides status on hardware, software, primary and redundant power.
B
10/100/1000BaseT or 100/1000BaseX SFP Combo Ports
Two 10/100/1000BaseT or SFP combo ports for various supported SFP
transceivers.
C
10/100BaseT RJ-45 Ports
10/100BaseT non-combo ports. Odd-numbered ports are on top row, evennumbered ports are on bottom row.
Refer to “LED Status” on page 2-20 for LED status information.
OmniSwitch 6250 Hardware Users Guide
June 2012
page 2-17
OmniSwitch 6250-P24
OmniSwitch 6250 Chassis and Hardware Components
OmniSwitch 6250-P24 Rear Panel
Note. The figure shows a pre-production version of the chassis without product, safety, and compliance
information labels. All production versions of the chassis have these labels.
C
F
B
A
D
G
E
OS6250-P24 Rear Panel
Item
Description
A
Push Button
When pushed all LEDs will turn off and the LED of the Stack ID
will remain lit.
B
Console Port
RS-232 console port with an RJ-45 connector. Provides access to
the CLI for configuration and management.
C
Grounding Block
Type LCD8-10A-L grounding lug
D
USB Port
High speed USB 2.0 port.
E
HDMI Stacking Connectors
Connectors for use in stacking switches into a virtual chassis or as
an uplink port.
F
Backup Power Supply Connector
G
Main Power Supply Connector
Refer to “LED Status” on page 2-20 for LED status information.
page 2-18
OmniSwitch 6250 Hardware Users Guide
June 2012
OmniSwitch 6250 Chassis and Hardware Components
OmniSwitch 6250-P24
OS6250-P24 Specifications
Total unshared 10/100BaseT
ports per switch
24 (1-24)
Total combo ports per switch
2 (25-26)
Total HDMI ports per switch
2 (StackA, StackB)
Total 802.3at PoE ports per
switch
8 (1-6, 25-26) Ports 25 and 26 share PoE with 23 and 24. Only one set
of ports can have PoE operational at a time.
Total 802.3af PoE ports per
switch
18 (7-24) Ports 23 and 24 share PoE with 25 and 26. Only one set of
ports can have PoE operational at a time.
Flash memory size
128 MB
RAM memory size
256 MB SDRAM
Chassis Width
8.5 inches (21.5 cm)
Chassis Height
1.73 inches (4.4 cm)
Chassis Height (rack units)
1 RU
Chassis Depth
11.5 inches (29.21 cm)
Weight
4.20 lbs (1.91kg)
Operating Humidity
5% to 95% non-condensing
Storage Humidity
10% to 95% non-condensing
Operating Temperature
0C to +45C
Storage Temperature
-40C to +70C
Upper Threshold Temperature
86C
Danger Threshold Temperature
91C
Data rate (RJ-45)
10 or 100 Mbps (full or half duplex)
1 Gigabit per second (full duplex)
Data rate (SFP)
100/1000 Mbps (full duplex)
Maximum frame size
9216 bytes
Cable supported
(RJ-45)
10BaseT: unshielded twisted-pair (UTP)
100BaseTX: unshielded twisted-pair (UTP), Category 5, EIA/TIA 568
or shielded twisted-pair (STP), Category 5, 100 ohm
1000BaseT: unshielded twisted-pair (UTP), Category 5e
Maximum cable distance
(RJ-45)
100 meters
OmniSwitch 6250 Hardware Users Guide
June 2012
page 2-19
OmniSwitch 6250-P24
OmniSwitch 6250 Chassis and Hardware Components
LED Status
LED
State
Description
OK
Solid Green
Normal Operation.
Blinking Green
Boot up/Remote Config Load in
Progress
Solid Amber
Operating Temperature Exceeded.
Solid Green
Primary unit in a stack or standalone
switch.
Solid Amber
Secondary unit in a stack.
Off
Switch is idle. (not primary or
secondary)
Solid Green
P/S Normal Operation.
Amber
P/S Present and Bad (24-port models
only)
Off
P/S Not Present or Bad.
Solid Green
P/S Normal Operation.
Amber
P/S Present and Bad (24-port models
only)
Off
P/S Not Present or Bad.
Green
Unit in Stacking Mode
Amber
Unit in Standalone Mode
Green
Valid Uplink
Amber
Valid Stacking Link
Off
No Link Detected.
Solid Green
Valid Link
Blinking Green
Transmitting or receiving packets in
a link up state for non-PoE .
Solid Amber
Valid PoE Link.
Blinking Amber
Transmitting or receiving packets in
a link up state for PoE .
Off
No Link Detected.
Solid Green
Valid Link.
Blinking Green
Transmitting or receiving packets in
a link up state .
Off
No Link Detected.
PRI
PWR
BPS
STK
Stack A/ Stack B
10/100/1000 Ports
SFP Ports
Push Button Operation
page 2-20
When pushed all LEDs will turn off
and the LED of the Stack ID will
remain lit.
OmniSwitch 6250 Hardware Users Guide
June 2012
OmniSwitch 6250 Chassis and Hardware Components
OS6250 - Power Supplies
OS6250 - Power Supplies
• Internal 30W AC System Power Supply (see “Internal AC Power Supply” on page 2-22)
• Internal 30W DC System Power Supply (see “Internal DC Power Supply” on page 2-23)
• External 42W AC Power Brick (see “PS-42W-AC Power Brick” on page 2-24)
• External 30W DC Power Brick (see “PS-30W-DC Power Brick” on page 2-25)
• External 225W AC PoE Power Supply (see “PS-225W-AC-P PoE Power Supply Module” on
page 2-26)
OmniSwitch 6250 Hardware Users Guide
June 2012
page 2-21
OS6250 - Power Supplies
OmniSwitch 6250 Chassis and Hardware Components
Internal AC Power Supply
Provides system power for the OmniSwitch 6250 switches.
P/S Component
Description
Model
Internal AC Power Supply
Provides System Power For
OS6250-8M/24/24M
Input Voltage Range
100-240 VAC
Rated Frequency
50 to 60 Hz
Inrush Current
0.9 A
Maximum Output Power
30 W
Output Voltage
12.0 VDC
Output Current
2.5 A (maximum)
page 2-22
OmniSwitch 6250 Hardware Users Guide
June 2012
OmniSwitch 6250 Chassis and Hardware Components
OS6250 - Power Supplies
Internal DC Power Supply
Provides system power for the OmniSwitch 6250 switches.
P/S Component
Description
Model
Internal DC Power Supply
Provides System Power For
OS6250-24MD
Input Voltage Range
-40 to -60VDC
Input Current
2.0 A
Maximum Output Power
30 W
Output Voltage
12.0 VDC
Output Current
2.5 A (maximum)
OmniSwitch 6250 Hardware Users Guide
June 2012
page 2-23
OS6250 - Power Supplies
OmniSwitch 6250 Chassis and Hardware Components
PS-42W-AC Power Brick
Provides system power and can be installed as a redundant system power supply.
42W, AC Power Brick
P/S Component
Description
Model
PS-42W-AC
Provides Redundant System
Power For
OS6250-24/24M/24MD
Input Voltage Range
100-240 VAC
Rated Frequency
50 to 60 Hz
Input Current
1.1 A (maximum)
Maximum Output Power
42W
Output Voltage
12 VDC
Output Current
3.5 A (maximum)
page 2-24
OmniSwitch 6250 Hardware Users Guide
June 2012
OmniSwitch 6250 Chassis and Hardware Components
OS6250 - Power Supplies
PS-30W-DC Power Brick
Povides system power and can be installed as a redundant system power supply.
30W, 24/-48VDC System Power Brick
P/S Component
Description
Model
PS-30W-DC
Provides Redundant System
Power For
OS6250-24/24M/24MD
Input Voltage Range
-40 to -60 VDC
Input Current
2A
Maximum Output Power
30 W
Output Voltage
12.0 VDC
Output Current
2.5 A (maximum)
OmniSwitch 6250 Hardware Users Guide
June 2012
page 2-25
OS6250 - Power Supplies
OmniSwitch 6250 Chassis and Hardware Components
PS-225W-AC-P PoE Power Supply Module
Provides system and Power over Ethernet and can be installed as either the primary or backup power
supply.
225W, -54.5VDC PoE Power Brick
P/S Component
Description
Model
PS-225W-AC-P
Provides System and PoE Power OS6250-P24
For
Input Voltage Range
100 to 240 VAC
Rated Frequency
50 to 60 Hz
Input Current
3.6A (maximum)
Maximum Output Power
225W
Output Voltage / Current
54.5 VDC @ 3.5A, 12V @ 3A
page 2-26
OmniSwitch 6250 Hardware Users Guide
June 2012
OmniSwitch 6250 Chassis and Hardware Components
OS6250 - Power Supplies
Power Supply Tray
Alcatel-Lucent requires the use of the power supply tray when connecting external power supplies. The
shelf can be attached directly to the back or side of the chassis and rack mounted.
OS6250 Power Supply Shelf
Power Supply Tray Specifications
Tray Width
8.125 inches
Tray Height
1.73 inches
Tray Height (rack units)
1 RU
Tray Depth
8.25 inches
Weight
2.0 lbs
Note: Side section of tray can be removed to provide access channel to rear of chassis when rack-mounting units on top of each other.
OmniSwitch 6250 Hardware Users Guide
June 2012
page 2-27
AC Power Cords
OmniSwitch 6250 Chassis and Hardware Components
AC Power Cords
Since the power cord is the switch’s only disconnect device, it should be plugged into an easily accessible
outlet. In the event that your power cord is lost or damaged, refer to the specifications below.
Specifications
The power cord included with this product contains three (3) insulated #18AWG stranded copper wires
and is rated between 85-265 VAC (region dependent), 10 amps with a nominal length of 2 meters. The
female end terminates in an IEC-60320-C15 attachment plug and the male end termination varies dependent upon region, as listed below.
European cords must be Harmonized (HAR) type. Refer to the information below for power plug types by
region:
Power Cord Types
User Side Connectors
North America
NEMA 5-15-P
United Kingdom / Ireland
BS 1363 UK
Europe
CEE 7/7
Japan
JIS 8303
Australia
AS 3112
India
BS 546
Italy
CIE 23-16
Switzerland / Liechtenstein
SEV 1011
Denmark / Greenland
SRAF 1962 / DB 16/87
Argentina
A-10
IEC-60320-C15
Supplied 6250 Power Cord Specifications
page 2-28
OmniSwitch 6250 Hardware Users Guide
June 2012
OmniSwitch 6250 Chassis and Hardware Components
DC Power Specifications
DC Power Specifications
OS6250-24MD Internal DC Power Supply
The internal DC power supply has the following additional considerations. Refer to the installation steps
described in “OS6250-24MD Internal DC Power Supply Connections” on page 3-27
• Connect to a -48V or -60V reliably grounded DC SELV source.
• Use common DC return connections for the DC power supplies. The DC return terminal conductor
should be connected to the equipment frame.
• The Branch Circuit Overcurrent Protection must be rated a Maximum of 15A.
• Use 12AWG solid copper conductors only.
• A readily accessible disconnect device that is suitably approved and rated shall be incorporated in the
field wiring.
Black
MIN 1 TURN PER 1.5
HALF TURN PER .75
Red
Twisted pair wire (red and black) for a DC power supply
Backup DC Power Brick
The backup DC power brick has the following additional considerations. Refer to the installation steps
described in “OS6250-24MD Internal DC Power Supply Connections” on page 3-27
• Connect to a -48V or -60V reliably grounded DC SELV source.
• Use common DC return connections for the DC power supplies. The DC return terminal conductor
should be connected to the equipment frame.
• The Branch Circuit Overcurrent Protection must be rated a Maximum of 5A.
• Use 22AWG solid copper conductors only.
• A readily accessible disconnect device that is suitably approved and rated shall be incorporated in the
field wiring.
Black
MIN 1 TURN PER 1.5
HALF TURN PER .75
Red
Twisted pair wire (red and black) for a DC power supply
OmniSwitch 6250 Hardware Users Guide
June 2012
page 2-29
Stacking Cables
OmniSwitch 6250 Chassis and Hardware Components
Stacking Cables
The following cables and transceivers can used for stacking switches into a virtual chassis. Depending on
the length and stacking requirements, either copper or fiber can be used. Enterprise models support two
HDMI stacking ports and Metro models support two SFP+ stacking ports for use with SFP+ direct
attached copper cables.
Cable Types
Lengths
Copper - SFP+ Direct Attached
(Metro Models)
30/60/150 centimeters
HDMI (Enterprise Models)
30/60/150 centimeters
SFP+ Direct Attached Copper- Squeeze Tab
SFP+ Direct Attached Copper - Pull Tab
HDMI Stacking Cable
page 2-30
OmniSwitch 6250 Hardware Users Guide
June 2012
OmniSwitch 6250 Chassis and Hardware Components
Console Port
Console Port
The console port, located on the chassis front panel, provides a console connection to the switch and is
required when logging into the switch for the first time. By default, this RJ-45 connector provides a DTE
console connection.
Serial Connection Default Settings
The factory default settings for the serial connection are as follows:
baud rate
9600
parity
none
data bits (word size)
8
stop bits
1
flow control
none
OmniSwitch 6250 Hardware Users Guide
June 2012
page 2-31
Port Pinouts
OmniSwitch 6250 Chassis and Hardware Components
Port Pinouts
RJ-45 Console Port – Connector Pinout
Pin Number
Signals as DTE Console Port
1
NC
2
NC
3
RXD
4
Ground
5
Ground
6
TXD
7
NC
8
NC
10/100 Ethernet Port – RJ-45 Pinout (non-PoE)
Pin Number
Description
1
RX+
2
RX-
3
TX+
4
not used
5
not used
6
TX-
7
not used
8
not used
Gigabit Ethernet Port – RJ-45 Pinout
Pin Number
Description
1
BI_DB+
2
BI_DB-
3
BI_DA+
4
BI_DD+
5
BI_DD-
6
BI_DA-
7
BI_DC+
8
BI_DC-
page 2-32
OmniSwitch 6250 Hardware Users Guide
June 2012
OmniSwitch 6250 Chassis and Hardware Components
Overtemp Condition
10/100/1000 Mbps Power over Ethernet Port – RJ-45 Pinout
Pin Number
Description
1
RX+ (-VDC)
2
RX- (-VDC)
3
TX+ (+VDC)
4
5
6
TX- (+VDC)
7
8
Overtemp Condition
The OmniSwitch 6250 is designed to operate within a specified operating temperature as noted under the
specifications section. However, in the event that the normal operating temperature of the switch is
exceeded, the following will occur:
• Upon crossing the configured Upper Threshold, a trap will be sent. (See the OmniSwitch Network
Configuration Guide for information on configuring switch thresholds).
If the temperature continues to rise and reaches the Danger Threshold, the following will occur:
• OK LED will display solid Amber.
• The switch will automatically shutdown
• Once the temperature drops to an acceptable operating level, the switch will automatically restart.
Check the following if an overtemp condition exists:
• Verify that the switch is installed properly in an environment that adheres to the installation instruc-
tions in the following chapters.
• Verify proper airflow to the chassis.
OmniSwitch 6250 Hardware Users Guide
June 2012
page 2-33
Dying Gasp
OmniSwitch 6250 Chassis and Hardware Components
Dying Gasp
If the switch loses all power it will maintain power long enough to send a Dying Gasp message before
completely shutting down. An SNMP trap, Syslog message and Link OAM PDUs will be generated.
Scenarios
A Dying Gasp event will be generated in the following scenarios:
• Primary power supply failure (if only power supply present).
• Primary power supply failure and then backup power supply failure.
• Backup power supply failure and then primary power supply failure.
• When a reload command is issued.
• When a takeover command is issued.
Note. Dying gasp will not work when both primary and backup power supplies fail simultaneously.
Connect each power supply to a separate independent power source to avoid simultaneous power failures.
SNMP Trap
As soon as the power failure is detected, an SNMP trap is sent to the first three configured SNMP stations.
The trap includes the following information:
• Slot number
• Power supply type (primary/backup)
• Time of the failure
Use the snmp station command and refer to the SNMP Configuration chapter for information on configuring an SNMP station.
Syslog Message
As soon as the power failure is detected, a Syslog message is sent to the first four configured Syslog servers. The message includes the following information:
• Syslog message "Dying Gasp Power Failure Event Occurred" along with the time of the failure.
Use the swlog output socket command and refer to the Using Switch Logging Configuration chapter for
information on configuring a Syslog server.
Link OAM PDU
As soon as the power failure is detected an 802.3ah OAM Information PDU is sent to all ports for which
link OAM is enabled and the LinkOAM port status is operational. The PDU will have the Dying Gasp bit
set.
Use the efm-oam and efm-oam port propagate-events commands to enable the generation of an
802.3ah OAM Information PDU upon a dying gasp event:
page 2-34
OmniSwitch 6250 Hardware Users Guide
June 2012
OmniSwitch 6250 Chassis and Hardware Components
Dying Gasp
-> efm-oam enable
-> efm-oam port 2/1-10 propagate-events dying-gasp enable
Link OAM PDU Priority
It may not be possible to generate PDUs on all ports enabled for link OAM. Dying gasp packets will be
sent in the following order based on port priority:
1. Uplink ports
2. Combo ports
3. All other ports
OmniSwitch 6250 Hardware Users Guide
June 2012
page 2-35
Dying Gasp
page 2-36
OmniSwitch 6250 Chassis and Hardware Components
OmniSwitch 6250 Hardware Users Guide
June 2012
3
Mounting OS6250
Switches
This chapter covers different mounting and installation options for OS6250 switches.
Anti-Static Warning. Before handling any components, free yourself of static by wearing a grounding
strap, or by grounding yourself properly. Static discharge can damage the switch and the backup power
supply.
Chassis Components
OmniSwitch 6250 switches ship with all mounting brackets attached. The following diagram shows the
individual chassis and power supply tray components.
OS6250 CHASSIS
POWER SUPPLY TRAY
Slot -bracket
Slide -bracket
Plate and Screws
Power Supply Tray Rear Rracket
Factory-Shipped Chassis and Power Supply Tray Assemblies
OmniSwitch 6250 Hardware Users Guide
June 2012
page 3-1
Mounting OS6250 Switches
Available Mounting Kits
The mounting kits listed below are available.
Kit
Description
OS6250-RM-19
Universal 1/2 width tray kit for mounting one 1/2 width OS6250 switch in a
19" rack.
OS6250-DUAL-MNT
Two mounting and sliding brackets to mount two OS6250 switches in a 19"
rack.
OS6250-RM-19-L
Simple L-bracket for mounting one OS6250 switch in a 19" rack.
OS6250-REAR-MNT
Mounting brackets to stabilize the rear of unit in the back of a 19" rack.
Hardware to mount the rear of two 6250 units in a 19" rack.
OS6250-WALL-MNT
Wall mounting kit for OS6250-8M only. Contains universal mounting brackets and screws for wall mounting an OS6250-8M.
page 3-2
OmniSwitch 6250 Hardware Users Guide
June 2012
Mounting OS6250 Switches
General Installation Recommendations
General Installation Recommendations
Cooling Recommendations
OS6250 non-PoE switches are convection-cooled. Although air flow is not mandatory for switch operation, the best way to ensure proper cooling is to provide some ambient air flow over the switch whenever
possible (e.g., from room fans, etc.).
See table below for recommended clearance
above the chassis.
Recommended Airflow Through Chassis - non-PoE Models
OS6250 PoE switches contain a fan that draws air over the intenal components for proper cooling as
shown in the diagram below. Fans pull air into the left side. Air is vented through the right side and rear of
the chassis.
See table below for recommended clearance
above the chassis.
Airflow Through Chassis - PoE Model
OmniSwitch 6250 Hardware Users Guide
June 2012
page 3-3
General Installation Recommendations
Mounting OS6250 Switches
Reduced Air Flow
Installation of the equipment in a rack should be such that the amount of air flow required for safe
operation of the equipment is not compromised.
Elevated Operating Ambient Temperatures
If installed in a closed or multi-unit rack assembly, the operating ambient temperature of the rack environment may be greater than room ambient. Therefore, consideration should be given to installing the equipment in an environment compatible with the maximum ambient temperature (Tma) specified by the
manufacturer.
Recommended Clearances
Always allow adequate clearance at the front, rear, top, and sides of the switch. The following table shows
the recommended minimum clearances for adequate chassis cooling and access to cabling and
components at the front and rear of the chassis.
Location
OS6250
Top
0.875 inches (1/2 RU)
Bottom
No minimum clearance required. However, be sure that the bottom of the chassis is
not in direct contact with any equipment below.
Sides
2 inches
Rear
6 inches (see note below)
Front
6 inches (see note below)
Note. Clearance recommendations at the front and rear of chassis are for access to cabling and
components only and are not intended as a specific airflow requirement.
Mechanical Loading
Mounting of the equipment in the rack should be such that a hazardous condition is not achieved due to
uneven mechanical loading.
Circuit Overloading
Consideration should be given to the connection of the equipment to the supply circuit and the effect that
overloading of the circuit might have on overcurrent protection and supply wiring. Appropriate consideration of equipment nameplate ratings should be used when addressing this concern.
Reliable Earthing
Reliable earthing of rack-mount equipment should be maintained. Particular attention should be given to
supply connections other than direct connections to the branch circuit (e.g. use of power strips).
page 3-4
OmniSwitch 6250 Hardware Users Guide
June 2012
Mounting OS6250 Switches
Power Supply Information
Power Supply Information
Before getting started, please note that OmniSwitch 6250 power supplies can be installed in a number of
different configurations. For example:
• Non-redundant system power - Provides power requirements to the chassis, with no power supply
redundancy/failover.
• Redundant system power - Provides power requirements to the chassis as well as power supply redun-
dancy/failover.
• Non-redundant system and Power over Ethernet (PoE) - This provides power requirements to the
chassis, as well as power requirements to the PoE ports.
• Redundant system and Power over Ethernet (PoE) - This provides power requirements to the chassis
and PoE ports as well as power supply redundancy/failover to both chassis and PoE.
Refer to the table below for typical power supply and power supply tray requirements for different
configurations.
Power requirements
External Power supplies
needed
Power supply trays needed
Non-redundant with internal power
0
0
Redundant with internal power
1
1
Non-redundant without internal
power
1
1
Redundant without internal power
2
2
OmniSwitch 6250 Hardware Users Guide
June 2012
page 3-5
Assembling OS6250 Switches
Mounting OS6250 Switches
Assembling OS6250 Switches
Assembly Guidelines
Depending on the model, power supplies, and mounting requirements, the OS6250 can be mounted in a
variety of ways.
• Power supply trays can be mounted on the side or back of the chassis or both.
• Two chassis can be mounted side-by-side for rack mounting.
• Power supply trays can be mounted to the rear of the chassis.
Attaching the Power Supply Tray on Side of Chassis
When rack mounting a single switch, the power supply tray can be positioned at the side of the unit assembly. This allows the chassis and power supply tray assembly to span the full width of the rack.
If two external power supplies are to be used an additional power supply tray must be mounted immediately behind the switch chassis. Refer to the table on page 3-5 for additional power supply requirements.
OS6250-RM-19 - Power supply tray side installation
A chassis and power supply tray can be assembled side-by-side to fit into a standard 19-inch rack mount as
show in the figure below.
Rear center mounting bracket.
Front center mounting brackets.
Fully Assembled Chassis and Power Supply Tray (OS6250-RM-19)
page 3-6
OmniSwitch 6250 Hardware Users Guide
June 2012
Mounting OS6250 Switches
Assembling OS6250 Switches
1 Attach the slot-brackets to the front and rear of the chassis using the attachment screws (M3 flathead)
provided for each bracket.
Slot-Bracket Attachment
2 Attach slide-bracket to front of the power supply tray using the attachment screws (M3 flathead).
Slide bracket
Slide-Bracket Attachment
OmniSwitch 6250 Hardware Users Guide
June 2012
page 3-7
Assembling OS6250 Switches
Mounting OS6250 Switches
3 Attach the power supply tray extension bracket to the rear of the power supply tray using one screw
(M3 pan head) and then attach the slide bracket to the extension with two screws (M3 flathead).
Attach power supply tray extension bracket to
the rear of the chassis.
Power Supply Tray Extension Bracket
4 Slide the power supply tray and chassis together.
Slide the power supply tray extension into
slot-bracket on chassis.
Power Supply Tray Extension Bracket with Slide Bracket
page 3-8
OmniSwitch 6250 Hardware Users Guide
June 2012
Mounting OS6250 Switches
Assembling OS6250 Switches
5 Place bracket plate over the front brackets and secure with thumb screws.
Secure power supply tray to chassis with bracket plate and
captive thumb screws.
Secure Front Bracket with Plate
Skip to “Securing Power Supplies in Power Supply Tray” on page 3-13
OmniSwitch 6250 Hardware Users Guide
June 2012
page 3-9
Assembling OS6250 Switches
Mounting OS6250 Switches
OS6250-DUAL-MNT - Attaching Two Chassis Side-by-Side
Two chassis can be assembled side-by-side with the power supply trays attached to the back of the chassis, if necessary, for mounting into a standard 19-inch rack as show in the figure below.
Rear center brackets.
Front center mounting brackets.
Fully Assembled Side-by-Side Chassis Assembly (OS6250-DUAL-MNT)
1 Attach the slot-brackets and slide-brackets to the front and back of the chassis using the attachment
screws (M3 flat head) provided for each bracket.
Attach Slot/Slide-Brackets
page 3-10
OmniSwitch 6250 Hardware Users Guide
June 2012
Mounting OS6250 Switches
Assembling OS6250 Switches
2 Align the chassis and slide both front and rear center brackets together.
Slide chassis together
Slide Chassis Together
3 Place bracket plate over front and rear brackets and secure with thumb screws.
Bracket Plate and Screws
Secure Front and Back with Bracket Plate
OmniSwitch 6250 Hardware Users Guide
June 2012
page 3-11
Assembling OS6250 Switches
Mounting OS6250 Switches
Attaching Power Supply Tray to Rear of Chassis
To secure a power supply tray to the rear of the chassis, follow the steps below.
1 Insert the two tabs at the base of the tray into the slots provided at the bottom-rear portion of the switch
chassis.
Insert tab
Insert tab
Insert Tabs Into Chassis Slots
2 Be sure that the two holes in the tray are aligned with the threaded holes in the rear panel of the
chassis and secure the tray to the switch using the two attachment screws (M3 pan head).
Skip to “Securing Power Supplies in Power Supply Tray” on page 3-13
page 3-12
OmniSwitch 6250 Hardware Users Guide
June 2012
Mounting OS6250 Switches
Assembling OS6250 Switches
Securing Power Supplies in Power Supply Tray
Power Supply Brick Installation
1 Place the power supply into the power supply tray.
Power Supply
Power Supply Tray
Place Power Supply Into Tray
2 Position the power supply bracket over the power supply ensuring the tabs are placed over the power
supply holding it in place.
Power Supply Bracket
Tabs
Power Supply Bracket
OmniSwitch 6250 Hardware Users Guide
June 2012
page 3-13
Assembling OS6250 Switches
Mounting OS6250 Switches
3 Secure the bracket and power supply using the retaining strap. Secure the retaining strap to the power
supply tray using the attachment screws (provided).
Retaining strap
Retaining Strap Screws
Secure Power Brick With Strap
Power Supply Module Installation
1 Place the power supply into the power supply tray.
2 Slide the power supply forward, aligning the guide posts with the holes in the chassis.
3 Firmly seat the power supply to the chassis and ensure the power supply tabs on the front bottom of the
power supply slide into the slots on the power supply tray.
Captve Screw
Tab Slots
Securing Power Supply Module in Tray
4 Secure the power supply to the power supply tray using the captive thumb screw.
page 3-14
OmniSwitch 6250 Hardware Users Guide
June 2012
Mounting OS6250 Switches
Mounting OS6250 Switches
Mounting OS6250 Switches
Once the OS6250 is assembled it can now be mounted either in a rack, on a wall, or on a table.
Note. Only the OS6250-8M supports wall-mounting. (OS6250-WALL-MNT kit required).
Rack-Mounting OS6250 Switches
General Rack-Mounting Guidelines
If you will be rack-mounting your OS6250 switch(es), refer to the important guidelines below before
installing.
• It is recommended that two people install the switch assembly on the rack—one person to hold the
chassis and position it on the rack, and a second person to secure the chassis to the rack using
attachment screws. (Please note that Alcatel-Lucent does not provide rack-mount screws. Use the
screws supplied by the rack vendor.)
• To prevent a rack from becoming top heavy, it is recommended that you install heavier equipment at
the bottom of the rack, whenever possible.
• Review page 3-4 for recommended chassis clearances before installing.
• If you are installing the switch on a relay rack, be sure to install and secure the rack per the rack
manufacturer’s specifications.
Rack-Mounting Installation
1 Follow the proper assembly instructions based on the configuration of the chassis and power supply
trays described in “Assembling OS6250 Switches” on page 3-6.
2 Attach rack mount ears to both sides of the front of the chassis.
Attach Rack Mount Brackets
3 Using one additional person, lift and position the assembly on the rack until the rack-mount flanges are
flush with the rack post.
4 Align the holes in the flanges with the rack holes.
OmniSwitch 6250 Hardware Users Guide
June 2012
page 3-15
Mounting OS6250 Switches
Mounting OS6250 Switches
5 Once the holes are aligned, insert a rack mount screw (not provided) through the bottom hole of each
flange. Tighten both screws until they are secure.
When rack mounting, a
clearance of 0.875 inches is
recommended above the
chassis.
No minimum clearance is required below the chassis
assembly. However, be sure that the bottom of the chassis
is not in direct contact with any equipment below.
Rack-mounting Chassis with Power Supply Tray (OS6250-RM-19)
When rack mounting, a clearance of
0.875 inches is recommended above
the chassis.
No minimum clearance is required below the chassis
assembly. However, be sure that the bottom of the chassis
is not in direct contact with any equipment below.
Rack-mounting Two Chassis (OS6250-DUAL-MNT)
Note. Be sure to install the screws in the bottom hole of each flange, as shown, before proceeding.
6 Once the screws at the bottom of each flange are secure, install the remaining two rack mount screws.
Be sure that all screws are securely tightened.
page 3-16
OmniSwitch 6250 Hardware Users Guide
June 2012
Mounting OS6250 Switches
Mounting OS6250 Switches
Power Supply Tray - Removeable Section
When stacking multiple chassis, the power supply tray has a removeable section for providing access to
the console and stacking ports.
• Remove the three top screws and the two side screws and slide removal section out.
Top Screws
Side Screws
Stacked Chassis - Power Supply Tray Section Removed
OmniSwitch 6250 Hardware Users Guide
June 2012
page 3-17
Mounting OS6250 Switches
Mounting OS6250 Switches
OS6250-RM-19-L - Mounting Instructions
A single chassis can be mounted into a standard 19-inch rack as shown in the figure below..
L-Bracket
OS6250-RM-19-L
page 3-18
OmniSwitch 6250 Hardware Users Guide
June 2012
Mounting OS6250 Switches
Mounting OS6250 Switches
OS6250-REAR-MNT - Mounting Instructions
Alcatel-Lucent provides an optional rack mounting kit that allows OmniSwitches to be secured to both the
front and back rails of the rack for additional stability.
Parts Provided
Slot/Slide Brackets
(30) M3
(6) M2.6
Tray Inserts (2)
Extension Brackets
Flanged Inserts
Attachment Screws
Steps
2
1
(3) M2.6
(3) M3
Detail
(2) M3
(4) M3
(2) M3
1. Attach the tray inserts to the power supply trays
using the attachment screws, as shown.
3
4
3. Attach the slide bracket to the rear of one power tray
and the slot bracket to the rear of the other power supply tray and slide chassis together.
OmniSwitch 6250 Hardware Users Guide
2. Attach an extension bracket to both sides of the
chassis assembly. The guide rails should face out and
the word “TOP” should face up. Be sure to use three
screws at front and four at the rear of rails.
June 2012
4. Slide the bracket inserts into the extension bracket
guide rails until the flanges meet the rack. Be sure that
the rack mount flanges are facing out and secure.
page 3-19
Mounting OS6250 Switches
Mounting OS6250 Switches
Completed Assembly
Extension Bracket
Flanged Rack Mount Insert
Power Supply Tray Insert
Extension Bracket
Power Supply Tray Brackets
Flanged Rack Mount Insert
OS6250-REAR-MNT
page 3-20
OmniSwitch 6250 Hardware Users Guide
June 2012
Mounting OS6250 Switches
Mounting OS6250 Switches
Table-Mounting OS6250 Switches
General Table-Mounting Guidelines
OmniSwitch 6250 switches can be installed freestanding as tabletop-mounted units. If you will be tablemounting your switch(es), refer to the important guidelines below before installing.
• When choosing a location for the switch, be sure that adequate clearance has been provided for chassis
airflow and access to the front, back, and sides of the chassis. For recommended clearances, refer to
“Recommended Clearances” on page 3-4.
• The power cord for OmniSwitch 6250 switches measures two (2) meters (approximately 6.5 feet) in
length. When table mounting the switch, be sure that the mounting location is within the reach of all
the required power sources.
• An additional mounting kit is needed to table-mount the chassis.
Table-Mounting Installation
1 Follow the proper assembly instructions based on the configuration of the chassis and power supply
trays described in “Assembling OS6250 Switches” on page 3-6.
2
Orient the table-mount brackets so that the rubber bumpers are facing down. Attach the brackets to
both sides of the switch, as shown.
Bracket Orientation for Table Mounting
3 Attach the additional mounting brackets to the rear portion of the power supply tray that was installed
at step 1 (again, so that the rubber bumpers are facing down). Attach the brackets to both the left and right
side of the tray.
OmniSwitch 6250 Hardware Users Guide
June 2012
page 3-21
Mounting OS6250 Switches
Mounting OS6250 Switches
4 If preferred, mount the complete switch assembly to the table by inserting attachment screws (not
provided) through the flat portion of the mounting brackets and into the mounting surface. Do not overtighten. Otherwise, the switch/power supply tray assembly may simply be placed on the table surface without attachment screws.
Table Mounted Chassis
page 3-22
OmniSwitch 6250 Hardware Users Guide
June 2012
Mounting OS6250 Switches
Mounting OS6250 Switches
Wall-Mounting the OS6250-8M
The OmniSwitch OS6250-8M switch can also be installed as a wall-mounted unit.
Note. Only the OS6250-8M supports wall-mounting. (OS6250-WALL-MNT kit required).
General Wall-Mounting Guidelines
• When choosing a location for the switch, be sure that adequate clearance has been provided for chassis
airflow and access to the front, back, and sides of the chassis. For recommended clearances, refer to
“Recommended Clearances” on page 3-4.
• For wall mounting, it is recommended that the chassis assembly is oriented sideways, with the chassis
front panel facing left, as shown in the diagram below.
• In order to ensure that damage to the power cord does not occur, steps must be taken to provide proper
routing of the power cord, as well as proper access to the switch’s power source (i.e., grounded outlet).
Refer to the guidelines listed below for additional details.
• The power cord for OmniSwitch 6250 switches measures two (2) meters (approximately 6.5 feet) in
length. When wall mounting the switch, be sure that the mounting location is within the reach of all the
required power sources. In addition, the power cord must not be attached to the building surface
(e.g., with U-brackets, cord retainer clips, or other fasteners), nor run through walls, ceiling, floors and
similar openings in the building structure.
• Be sure that the wall section and wall attachment screws (not provided) have the required strength to
easily support the chassis assembly. A complete OS6250 chassis assembly—with mounting brackets,
power supply tray, and redundant power supplies—weighs approximately 12 lbs.
• For each mounting hole the use of screws long enough to penetrate any soft surfaces, such as sheet-
rock or drywall, and securely attach to a hard surface such as a wall stud is recommended.
• Two people will be required to wall mount the switch: one person to hold the chassis assembly in place
and one person to mark the locations for the mounting screws.
• An additional mounting kit is needed for wall-mounting the chassis.
OmniSwitch 6250 Hardware Users Guide
June 2012
page 3-23
Mounting OS6250 Switches
Mounting OS6250 Switches
OS6250-WALL-MNT - Wall-Mounting Installation
1 Follow the proper assembly instructions based on the configuration of the chassis and power supply
trays described in “Assembling OS6250 Switches” on page 3-6.
2 Orient the wall-mount brackets so that the rubber bumpers are facing down. Attach the brackets to
both the left and right side of the switch, as shown.
Attaching the wall-mount brackets.
3 Attach two additional mounting brackets to the rear portion of the chassis so that the rubber bumpers
are facing down. Attach the brackets to both the left and right side of the switch.
4 Use one person to securely hold the chassis assembly in position on the wall. Mark the location of the
holes in the mounting brackets on the wall.
5 Pre-drill the wall (if required).
Wall surface
Chassis
NOTE: For wall mounting, it is recommended that the
chassis assembly is oriented sideways, with the chassis
front panel facing left, as shown in the diagram below.
Recommended Wall Mount Chassis Orientation (OS6250-WALL-MNT)
page 3-24
OmniSwitch 6250 Hardware Users Guide
June 2012
Mounting OS6250 Switches
Mounting OS6250 Switches
Note. Wall fasteners are not provided with your switch and will vary depending on the type of wall
surface. Be sure to use fasteners that are approved for the full weight of the chassis assembly. Consult
fastener specifications for full details.
6 Secure the unit to the wall using appropriate wall fasteners.
OmniSwitch 6250 Hardware Users Guide
June 2012
page 3-25
Connecting Chassis to Power Source
Mounting OS6250 Switches
Connecting Chassis to Power Source
AC Power Supply Connections
Since the power cord is the switch’s only disconnect device, it should be plugged into an easily accessible
outlet. In the event that your power cord is lost or damaged, refer to the specifications below.
Powering On a Chassis
Follow the steps below to power on the chassis using and AC power source:
1 Connect the IEC-60320-C15 end of the supplied power cord to the primary and optional redundant
power supply.
2 Install the cord retainer bracket to the back of each installed power supply bracket using the attach-
ment screws (provided). Place the slotted retainer clip over the bracket with the retainer fingers pointing
down and slide the retainer bracket toward the power supply until it meets the power cord connector.
Insert two screws (provided) into the retainer clip slots and tighten until secure.
Retainer bracket
Slotted retainer clip
Secured Power Cord
3 Connect primary and optional redundant power supplies to AC power source.
4 Monitor the chassis as it boots.
page 3-26
OmniSwitch 6250 Hardware Users Guide
June 2012
Mounting OS6250 Switches
Connecting Chassis to Power Source
OS6250-24MD Internal DC Power Supply Connections
The internal DC power supply has the following additional considerations. Refer to the installation steps
described in “OS6250-24MD Internal DC Power Supply Connections” on page 3-27
• Connect to a -48V or -60V reliably grounded DC SELV source.
• Use common DC return connections for the DC power supplies. The DC return terminal conductor
should be connected to the equipment frame.
• The Branch Circuit Overcurrent Protection must be rated a Maximum of 15A.
• Use 12AWG solid copper conductors only.
• A readily accessible disconnect device that is suitably approved and rated shall be incorporated in the
field wiring.
Backup DC Power Brick Connections
The backup DC power brick has the following additional considerations. Refer to the installation steps
described in “OS6250-24MD Internal DC Power Supply Connections” on page 3-27
• Connect to a -48V or -60V reliably grounded DC SELV source.
• Use common DC return connections for the DC power supplies. The DC return terminal conductor
should be connected to the equipment frame.
• The Branch Circuit Overcurrent Protection must be rated a Maximum of 5A.
• Use 22AWG solid copper conductors only.
• A readily accessible disconnect device that is suitably approved and rated shall be incorporated in the
field wiring.
Black
MIN 1 TURN PER 1.5
HALF TURN PER .75
Red
Twisted pair wire (red and black) for a DC power supply
Note. Refer to the wiring diagram for information on connecting the DC power supply to a DC power
source.
OmniSwitch 6250 Hardware Users Guide
June 2012
page 3-27
Connecting Chassis to Power Source
Mounting OS6250 Switches
Securing the Redundant DC Power Supply Connector
If a redundant DC power supply is to be used, follow the steps below to securely mount the redundant DC
power connector to the power supply tray.
1 Secure the DC power connector bracket to the power supply tray using the screws provided.
DC Power Connector Bracket
Secure DC Power Connector Bracket
2 Slide the female DC power connector into the bracket and secure to the bracket with the screws
provided.
3 Connect the male DC connector to the female connector and secure to the female DC connector with
the captive screws contained in the male DC connector.
Female DC Connector
Secure female connector to
bracket with screws
Male DC Connector
Secure DC Power Connector Bracket
page 3-28
OmniSwitch 6250 Hardware Users Guide
June 2012
Mounting OS6250 Switches
Connecting Chassis to Power Source
Installing DC Power Source Wire Leads
The DC power supply on your switch contains a power connector with three (3) square slots for connecting the positive, negative, and ground wires from a DC power source.
DC Power Connectors
+ Side Screws for Connector Removal
OmniSwitch DC Power Supply Connector
A clamp inside each slot keeps the power wire tightly in place during operation. The DC power supply has
side screws that can be used to remove the connector if required.
These instructions describe how to connect your 3-wire DC power source to the power connector on your
DC power supply. A small flat-tip screwdriver and a wire stripper are required for this procedure.
1 Prepare the three (3) wires—12 gauge—that will plug into the power supply. First make sure they are
not plugged into the DC power source. Next, use a wire stripper to carefully strip between .24 and .30
inches (6-7.5 mm) off the end of each wire, removing the outer insulation to expose the copper core.
2 Open the clamp for the ground wire slot by inserting a small flat-tip screwdriver into the top of the
appropriate circular hole. Loosen the screw so that the clamp for the ground wire opens.
Loosen Screw.
+ Clamp inside square hole will open
when screw is loosened in top circular hole.
Opening Connector for Ground Wire
3 Insert the ground wire lead into the slot. The lead you insert must match the lead attached to the DC
power source.
Warning. You must plug DC wire leads into the correct holes in the DC power connector. Use the labels
above the DC power connector as a guide to positive, negative, and ground connections. If the wire leads
are plugged into the wrong holes, the power supply will not work properly and damage to the unit may
result.
OmniSwitch 6250 Hardware Users Guide
June 2012
page 3-29
Connecting Chassis to Power Source
Mounting OS6250 Switches
Push the wire in far enough such that it reaches the back wall of the connector, about a half inch
inside.
+ Ground Wire
Attaching the Ground Wire
4 Tighten the clamp by tightening the screw above the slot into which you inserted the wire lead. The
wire lead should be securely attached inside the connector. You should be able to pull on the wire and not
dislodge it.
Warning. For both 48V and -60V input voltages, the positive (+) wire of the sourcing equipment, such as
a battery or rectifier, must be connected to the positive (+) terminal of the OmniSwitch DC power supply
and the negative (-) wire of the sourcing equipment must be connected to the negative (-) terminal of the
OmniSwitch DC power supply. This rule always applies to both 48V, and -60V input voltages, regardless
of the polarity signs shown on the power supply specification labels such as: -48V, +48V, or -60V.
5 Repeat Steps 2 through 4 for the remaining positive and negative wire leads.
OS6250 Power Supply
DC Power Source
Correct Polarity Connections
page 3-30
OmniSwitch 6250 Hardware Users Guide
June 2012
Mounting OS6250 Switches
Connecting Chassis to Power Source
Hot-Swapping Power Supplies
Hot swapping is supported on models with redundant power supplies. In order to support the hot swapping of power supplies, the switch must have:
• An operational redundant power supply
Note. Hot swapping power supplies on switches without redundant system power will result in system
power interruption and a loss of network connectivity.
To hot swap power supplies, follow the steps below:
1 Begin by locating the power supply to be swapped, then disconnect the power cord from its power
source. The system will remain operational.
2 Remove the two screws located at the top of the power cord retainer bracket. Set the retainer clip and
screws aside; they will need to be reinstalled later.
3 Unplug the power cord from the power supply.
4 Next, remove the attachment screws used to secure the power supply retaining strap to the power
supply tray. Set the screws aside; they will need to be reinstalled later.
5 Carefully remove the retaining strap from the power supply tray. Be careful not to disrupt the
operational power supply adjacent to the power supply being hot swapped.
6 Lift the power supply that is being hot swapped out of the power supply tray and unplug its connector
cable from the power supply port located in the back of the switch chassis.
7 Install the new power supply by following the installation steps beginning at step 3 on page 3-13 of this
chapter.
OmniSwitch 6250 Hardware Users Guide
June 2012
page 3-31
Connecting Chassis to Power Source
page 3-32
Mounting OS6250 Switches
OmniSwitch 6250 Hardware Users Guide
June 2012
4
Booting 6250 Switches
For information on booting stand-alone switches and switches in stacked configurations, refer to the
sections below.
Booting an OmniSwitch 6250
The OmniSwitch 6250 switch does not use an on/off switch. The power cord is the switch’s only connect/
disconnect device. The power connector socket is located on the power supply rear panel. For more information, refer to “OmniSwitch 6250 Chassis and Hardware Components” on page 2-1.
To boot the switch, plug the power cord into an easily-accessible power source, such as a grounded AC
outlet or an Uninterruptible Power Supply (UPS).
The switch immediately begins the boot process. Allow a few moments for the switch to boot completely,
then verify the status of all LEDs on the switch’s front panel. A successful boot displays the following
LED states:
LED States for a Stand-Alone Switch
OK
Solid green
PRI
Solid green
STK
Amber
PWR
Solid Green
BPS
Solid green or OFF if no backup power supply is connected.
LED States for a Stacked Switch
OK
Solid green
PRI
Solid green (primary); Amber (Secondary); Off (Idle)
STK
Green
PWR
Solid Green
BPS
Solid green or OFF if no backup power supply is connected.
If any of the LED state differs from the states shown in the table above, refer to page 2-7 for more information. Contact Alcatel-Lucent Customer Support if the LED state persists.
For information on logging in and configuring your OmniSwitch 6250 switch, refer to the OmniSwitch
Getting Started Guide.
OmniSwitch 6250 Hardware Users Guide
June 2012
page 4-1
Console Port
Booting 6250 Switches
Console Port
The console port, located on the chassis front panel, provides a console connection to the switch and is
required when logging into the switch for the first time. By default, this RJ-45 connector provides a DTE
console connection.
Serial Connection Default Settings
The factory default settings for the serial connection are as follows:
baud rate
9600
parity
none
data bits (word size)
8
stop bits
1
flow control
none
Modifying the Serial Connection Settings
The switch’s serial connection defaults are listed above. If you wish to modify the default serial connection
settings (i.e., baud rate, parity, data bits, and stop bits), refer to the following steps:
Note. You must be connected to the switch via the console port before attempting to change serial connection settings. Otherwise, an error message will display.
For switches in a stacked configuration, all changes must be configured before the switches are cabled
together. In other words, you must configure these settings when each switch is operating as a stand-alone
unit.
1 Enter the modify boot parameters command at the CLI prompt. The boot prompt displays:
Boot >
2 To change the baud rate, enter boot serialbaudrate, followed by the desired baud rate value. Options
include 1200, 2400, 4800, 9600 (default), 19200, 38400, 57600, 76800, and 115200. For example:
Boot > boot serialbaudrate 19200
Note. Setting the console port to speeds above 9600 baud can cause problems with Zmodem uploads.
3 To change the parity value, enter boot serialparity, followed by the desired parity value. Options
include none (default), even, and odd. For example:
Boot > boot serialparity even
4 To change the data bits (i.e., word size) value, enter boot serialwordsize, followed by the number of
data bits. Options include 7 and 8 (default). For example:
Boot > boot serialwordsize 7
page 4-2
OmniSwitch 6250 Hardware Users Guide
June 2012
Booting 6250 Switches
Console Port
5 To change the stop bits value, enter boot serialstopbits, followed by the number of stop bits. Options
include 1 (default) and 2. For example:
Boot > boot serialstopbits 2
6 Verify your current changes by entering show at the boot prompt:
Boot > show
Edit buffer contents:
Serial (console) baud
Serial (console) parity
Serial (console) stopbits
Serial (console) wordsize
:
:
:
:
19200
even
2
7
(additional table output not shown)
7 You can save your changes to the boot.params file by entering commit file at the boot prompt:
Boot > commit file
When the commit file command is used, changes will not be enabled until after the next switch reboot.
8 You can also save your changes in real time to the switch’s running memory by entering commit
system at the boot prompt:
Boot > commit system
Caution. There are two important things to consider when using the commit system command to save
serial connection changes:
• Output to the terminal may become illegible due to incompatible serial connection settings between the
switch and the terminal emulation software.
• If you use the commit system command only, changes will not be saved to the switch’s boot.params
file and will be lost if the switch is rebooted. To save changes to the boot.params file, refer to step 7.
9 Return to the CLI prompt by entering exit at the boot prompt.
OmniSwitch 6250 Hardware Users Guide
June 2012
page 4-3
Console Port
Booting 6250 Switches
Viewing the Power Supply Status
The switch constantly monitors the power supply operation. If either the primary or backup power source
(optional) unexpectedly shuts down, the switch sends out a notification to the user. In addition, the power
LED on the chassis front panel displays solid amber.
Note. For detailed OmniSwitch 6250 LED information, refer to “LED Status” on page 2-20.
To check the number of power supplies currently operating, and the status of each power supply, use the
show power command. For example:
-> show power
Power Supplies in chassis 1
PS
Operational Status
---------+------------------PS-1
UP
PS-2
NOT PRESENT
The primary (i.e., factory-installed) power supply is listed as PS-1 in the show power command output.
The backup power supply is listed as PS-2. In the example above, there is no backup power supply
installed.
page 4-4
OmniSwitch 6250 Hardware Users Guide
June 2012
Booting 6250 Switches
Monitoring the Chassis
Monitoring the Chassis
OmniSwitch 6250 switches can be monitored and managed via the console port using Command Line
Interface (CLI) commands. The switches can also be monitored and managed via the Ethernet using CLI
commands, WebView, SNMP, and OmniVista.
The section below provides some examples of useful hardware-related monitoring CLI commands. Refer
to the OmniSwitch CLI Reference Guide for detailed information on all management and monitoring
commands used with the OmniSwitch 6250 switch.
Checking the Overall Chassis Status
To check the overall status of a chassis, including the chassis type, and current administrative and operational status, use the show chassis command. For example:
-> show chassis
Chassis 1
Model Name:
Description:
Part Number:
Hardware Revision:
Serial Number:
Manufacture Date:
Admin Status:
Operational Status:
Number Of Resets:
MAC Address:
OS6250-14,
12 RJ45 + 2 SFP,
902632-90,
B07,
H47Q0027,
JAN 03 2008,
POWER ON,
UP,
23
00:e0:b1:6b:ef:30,
For a complete list of output definitions for this command, refer to the OmniSwitch CLI Reference Guide.
Checking the Temperature Status
To check chassis temperature status, including the current temperature and configured threshold values,
use the show temperature command. For example:
-> show temperature
Temperature for sensor 1
Hardware Board Temperature (deg C)
Temperature Upper Threshold Range (deg C)
Temperature Upper Threshold (deg C)
Temperature Status
Temperature Danger Threshold (deg C)
=
=
=
=
=
39,
14 to 86,
80,
UNDER THRESHOLD,
86
For a complete list of output definitions for this command, refer to the OmniSwitch CLI Reference Guide.
OmniSwitch 6250 Hardware Users Guide
June 2012
page 4-5
Monitoring the Chassis
Booting 6250 Switches
Checking the Fan Status
To check the current status for all six fans in the chassis, use the show fan command. For example:
-> show fan
Chassis Fan Status
-------+---+----------1
1
Running
1
2
Running
1
3
Running
1
4
Running
For a complete list of output definitions for this command, refer to the OmniSwitch CLI Reference Guide.
Checking the Power Supply Status
For information on checking power supplies for OmniSwitch 6250 switches, refer to “Booting 6250
Switches” on page 4-1.
Additional Monitoring Commands
CLI Commands Used for Monitoring a Chassis
show cmm
Displays the basic hardware and status information for primary and
secondary management modules (if applicable).
show ni
Displays the basic hardware and status information for individual modules. If the switch is a standalone, information for the stand alone
switch displays.
show module
Displays the basic information for individual modules. If the switch is a
standalone, information for the stand-alone switch displays.
show module long
Displays the detailed information for individual modules. If the switch
is a standalone, information for the standalone switch displays.
show module status
Displays the basic status information for individual modules. If the
switch is a standalone, information for the standalone switch displays.
page 4-6
OmniSwitch 6250 Hardware Users Guide
June 2012
Booting 6250 Switches
Monitoring the Chassis
Using LEDs to Visually Monitor the Chassis
The front and rear panel of OmniSwitch 6250 switches provides status LEDs that are useful in visually
monitoring the status of the switches. LEDs include:
• Ethernet Port LEDs
• System Status LEDs
• Combo Port Status LEDs
For tables showing LED states operating normally, refer to “LED Status” on page 2-20.
Installing SFP and XFP Transceivers
For information on installing XFPs and SFPs, refer to the OmniSwitch Transceivers Guide.
OmniSwitch 6250 Hardware Users Guide
June 2012
page 4-7
Monitoring the Chassis
page 4-8
Booting 6250 Switches
OmniSwitch 6250 Hardware Users Guide
June 2012
5
Managing Power over
Ethernet (PoE)
Power over Ethernet (PoE) is supported on OmniSwitch 6250 switches and provides inline power directly
from the switch’s Ethernet ports. Powered Devices (PDs) such as IP phones and wireless APs can be
powered directly from the switch’s RJ-45 ports.
As the feature reduces devices’ dependence on conventional power sources, PoE eliminates many restrictions that traditional electrical considerations have imposed on networks.
In a PoE configuration, Power Source Equipment (PSE) detects the presence of a PD and provides an electrical current that is conducted along the data cable. The PD operates using the power received via the
Ethernet data cable; no connection to an additional power source (e.g., an AC wall socket) is required.
Note on Terminology. There are several general terms used to describe the feature, PoE. The terms Power
over Ethernet (PoE), Power over LAN (PoL), Power on LAN (PoL), and Inline Power are synonymous
terms used to describe the powering of attached devices via Ethernet. For consistency, this chapter and the
CLI Command Reference Guide refer to the feature as Power over Ethernet (PoE).
Additional terms, such as Powered Device (PD) and Power Source Equipment (PSE) are not synonymous
with PoE, but are directly related to the feature:
• PD refers to any attached device that uses a PoE data cable as its only source of power. Examples
include access points, such as IP telephones, Ethernet hubs, wireless LAN stations, etc.
• PSE refers to power sourcing equipment, which provides power to a single link section. PSE main
functions include searching the PD, optionally classifying the PD, supplying power to the link section
only if the PD is detected, monitoring the power on the link section, and scaling power back to detect
level when power is no longer requested or required.
As the OmniSwitch 6250 switches fully support Ethernet connectivity, you may also attach non-PD equipment, such as computer workstations, printers, servers, etc. to PoE ports. See Chapter 2, “OmniSwitch
6250 Chassis and Hardware Components,” for more information on the OmniSwitch 6250 chassis.
Important. Alcatel-Lucent recommends that PoE-enabled switches with attached IP telephones should
have operational power supply redundancy at all times for 911 emergency requirements. In addition, both
the switch and the power supply should be plugged into an Uninterruptible Power Source (UPS).
OmniSwitch 6250 Hardware Users Guide
June 2012
page 5-1
In This Chapter
Managing Power over Ethernet (PoE)
In This Chapter
This chapter provides specifications and descriptions of hardware and software used to provide PoE for
attached devices.
The chapter also provides information on configuring PoE settings on the switch through the Command
Line Interface (CLI). CLI commands are used in the configuration examples; for more details about the
syntax of commands, see the OmniSwitch CLI Reference Guide. Topics and configuration procedures
described in this chapter include:
• Power over Ethernet Specifications on page 5-3
• Viewing Power Status on page 5-4
• Configuring Power over Ethernet Parameters on page 5-5
• Understanding Priority Disconnect on page 5-8
• Monitoring Power over Ethernet via the CLI on page 5-11
Note. You can also monitor all chassis components and manage many chassis features, including Power
over Ethernet, with WebView, Alcatel-Lucent’s embedded web-based device management application.
WebView is an interactive and easy-to-use GUI that can be launched from the OmniVista or a web
browser. Please refer to WebView’s Online Documentation for more information.
page 5-2
OmniSwitch 6250 Hardware Users Guide
June 2012
Managing Power over Ethernet (PoE)
Power over Ethernet Specifications
Power over Ethernet Specifications
The table below lists general specifications for Alcatel-Lucent’s Power over Ethernet support. For more
detailed power supply and Power Source Equipment (PSE) specifications, refer to Chapter 2,
“OmniSwitch 6250 Chassis and Hardware Components.”
IEEE Standards supported
IEEE 802.3af; 802.3at
Default PoE administrative status
Enabled
Default PoE operational status
Disabled (PoE must be activated on a switchby-switch basis via the lanpower start command.)
Platforms supporting PoE
OmniSwitch 6250-P24
Cable distances supported
100 meters (approx.)
Total number of PoE-capable ports per switch
24
Default amount of inline power available (1-6, 23/24 or 31000 milliwatts
25/26)
Default amount of inline power available (7-24)
16000 milliwatts
Range of inline power allowed (1-6, 23-24 or 25-26)
Range of inline power allowed (7-22)
3000 - 31000 milliwatts
3000 - 16000 milliwatts
PoE Power Supply
225 Watts
Note. Ports pairs 23/24 and 25/26 cannot have PoE enabled at the same time. By default, ports 23/24 have
PoE capability enabled and ports 25/26 have PoE capability disabled. See “Enabling/Disabling PoE on
Copper Combo Ports” on page 5-6 for information on enabling PoE on the copper combo ports.
OmniSwitch 6250 Hardware Users Guide
June 2012
page 5-3
Viewing PoE Power Supply Status
Managing Power over Ethernet (PoE)
Viewing PoE Power Supply Status
To view the current status of power supplies installed, use the show power command, as shown below:
-> show power
Slot PS
Wattage
Type
Status
Location
----+----+---------+------+-----------+---------1
1
225
AC
UP
External
1
2
225
AC
UP
External
2
1
225
AC
UP
External
2
2
225
AC
UP
External
For detailed information on the show power command output, refer to the CLI Command Reference
Guide.
page 5-4
OmniSwitch 6250 Hardware Users Guide
June 2012
Managing Power over Ethernet (PoE)
Configuring Power over Ethernet Parameters
Configuring Power over Ethernet Parameters
Power over Ethernet Defaults
The following table lists the defaults for PoE configuration:
Parameter Description
Command(s)
Default Value/Comments
PoE operational status
lanpower start or lanpower stop
Disabled
Total power available to a port
lanpower power
16 Watts (802.3af)
31 Watts (802.3at)
Total PoE power available to an lanpower maxpower
entire chassis
225 Watts
Power priority level for a port
lanpower priority
low
Priority disconnect status
lanpower priority-disconnect
Enabled
Understanding and Modifying the Default Settings
The sections below provide information on each of the key components within the Power over Ethernet
software. They include information on PoE-related CLI commands. For detailed information on PoErelated commands, refer to the OmniSwitch CLI Reference Guide.
Setting the PoE Operational Status
Enabling PoE
By default, Power over Ethernet is administratively enabled in the switch’s system software. However, in
order to physically activate PoE, you must issue the lanpower start command on a slot-by-slot basis
before any connected PDs will receive inline power.
To activate power to PoE-capable in a switch, enter the corresponding slot number only. For example:
-> lanpower start 1
If power to a particular port has been disconnected via the lanpower stop command, you can reactivate
power to the port by specifying both the slot and port in the command line. For example:
-> lanpower start 1/1
Note. You cannot use the slot/port syntax to initially activate PoE on a port. This syntax is intended only
to reactivate power to those that have been disconnected via the lanpower stop command. To initially
activate PoE, you must use the lanpower start slot syntax only, as described above.
OmniSwitch 6250 Hardware Users Guide
June 2012
page 5-5
Configuring Power over Ethernet Parameters
Managing Power over Ethernet (PoE)
Disabling PoE
To disable PoE on a particular slot or port, use the lanpower stop command.
To disable PoE on a specific PoE-capable port, enter a slot/port number. For example:
-> lanpower stop 1/4
To disable PoE for all PoE-capable in a slot, enter the corresponding slot number only.
For example:
-> lanpower stop 1
Enabling/Disabling PoE on Copper Combo Ports
To enable the PoE capability on the copper combo ports use the lanpower combo-port command, for
example:
-> lanpower 1 combo-port enable
Enabling PoE capability on the copper combo ports disables PoE capability on ports 23/24 and vice versa
Configuring the Total Power Available to a Port
By default, each port is authorized by the system software to use up to a maximum amount of milliwatts to
power any attached device.
You can either increase or decrease this value based on the range in the specifications table.
Increasing the total power available to an individual port may provide a more demanding Powered Device
(PD) with additional power required for operation. Decreasing the total power available to a port helps to
preserve inline power and assists in the overall management of the switch’s power budget.
To increase or decrease the total power available to an individual port, use the lanpower power command.
Since you are setting the power allowance for an individual port, you must specify a slot/port number in
the command line. For example, the syntax
-> lanpower 1/1 power 3000
reduces the power available on port 1 of the switch to 3000 milliwatts. This new value is now the maximum amount of power the port can use to power any attached device (until the value is modified by the
user).
Configuring the Total Power Available to a Switch
Like the maximum port power allowance, the system software also provides a maximum slot-wide power
allowance. By default, each switch is authorized by the system software to use up to the maximum watts
available from the PoE power supply.
As with the maximum port power allowance, the user can either increase or decrease this value based on
the range in the specifications table.
Increasing the total power available to a switch may provide more demanding Powered Devices (PDs)
with additional power required for operation. Decreasing the total power available helps preserve inline
power and assists in the overall management of the switch’s power budget.
page 5-6
OmniSwitch 6250 Hardware Users Guide
June 2012
Managing Power over Ethernet (PoE)
Configuring Power over Ethernet Parameters
Important. Before changing the maximum slot-wide power allowance, you must disable PoE for the slot
via the lanpower stop command. Once the new value is assigned, re-enable PoE for the slot via the
lanpower start command.
To increase or decrease the total power available to a slot, use the lanpower maxpower command. Since
you are setting the power allowance for an individual slot, you must specify a slot number in the command
line. For example, the syntax
-> lanpower 1 maxpower 40
reduces the power allowance of slot 1 to 40 watts. This value is now the maximum amount of power the
slot can use to power all attached devices (until the value is modified by the user).
Note. Changing the maximum power available to a slot or port does not reserve or immediately allocate
that power. These settings are only used for configuring a maximum amount of power that may be used,
any unused power is still available and remains a part of the overall PoE budget.
Setting Port Priority Levels
As not all Powered Devices (PDs) connected to the switch have the same priority within a customer
network setting, the switch allows the user to specify priority levels on a port-by-port basis. Priority levels
include low, high, and critical. The default priority level for a port is low.
• Low. This default value is used for port(s) that have low-priority devices attached. In the event of a
power management issue, inline power to low-priority is interrupted first (i.e., before critical and highpriority).
• High. This value is used for port(s) that have important, but not mission-critical, devices attached. If
other in the chassis have been configured as critical, inline power to high-priority is given second
priority.
• Critical. This value is used for port(s) that have mission-critical devices attached, and therefore require
top (i.e., critical) priority. In the event of a power management issue, inline power to critical is maintained as long as possible.
To change the priority level for a particular port, use the lanpower priority command. Since the switch
allows you to set priority levels on a port-by-port basis, be sure to specify slot/port information in the
command line. For example, the syntax
-> lanpower 1/1 priority critical
changes the priority value of port 1 to the highest priority level of critical. Now that the default value has
been reconfigured, this port should be reserved for those PDs that are mission critical for network operations.
OmniSwitch 6250 Hardware Users Guide
June 2012
page 5-7
Understanding Priority Disconnect
Managing Power over Ethernet (PoE)
Understanding Priority Disconnect
The priority disconnect function differs from the port priority function described on page 5-7 in that it
applies only to the addition of powered devices (PDs) in tight power budget conditions. Priority disconnect is used by the system software in determining whether an incoming PD will be granted or denied
power when there are too few watts remaining in the PoE power budget for an additional device. For
example, if there are only 2 watts available in the current PoE power budget and a user plugs a 3.5W
powered device into a PoE port, the system software must determine whether the device will be powered
on. Based on priority disconnect rules, in some cases one or more existing devices may be powered down
in order to accommodate the incoming device. In other cases, the incoming device will be denied power.
Priority disconnect rules involve the port priority status of an incoming device (i.e., low, high, and critical), as well as the port’s physical port number (i.e., 1/1). Understanding priority disconnect rules is especially helpful in avoiding power budget deficits and the unintentional shutdown of mission-critical devices
when PDs are being added in tight power budget conditions. For detailed information on how priority
disconnect uses port priority and port number criteria for determining the power status of incoming PDs,
refer to the examples on pages 5-9 through 5-10.
Reminder. Priority disconnect applies only when there is inadequate power remaining in the power
budget for an incoming device.
For information on setting the priority disconnect status, refer to the section below. For information on
setting the port priority status (a separate function from priority disconnect), refer to “Setting Port Priority
Levels” on page 5-7.
Setting Priority Disconnect Status
By default, priority disconnect is enabled in the switch’s system software. For information on changing the
priority disconnect status, refer to the information below.
Disabling Priority Disconnect
When priority disconnect is disabled and there is inadequate power in the budget for an additional device,
power will be denied to any incoming PD, regardless of its port priority status (i.e., low, high, and critical)
or physical port number (i.e., 1/4).
To disable priority disconnect, use the lanpower priority-disconnect command. Since the switch allows
you to set priority disconnect status on a slot-by-slot basis, be sure to specify the slot number in the
command line. For example, the syntax
-> lanpower 1 priority-disconnect disable
disables the priority disconnect function on slot 1.
Enabling Priority Disconnect
To enable priority disconnect, use the lanpower priority-disconnect command. Be sure to specify the slot
number in the command line. For example, the syntax
-> lanpower 1 priority-disconnect enable
enables priority disconnect on slot 1.
page 5-8
OmniSwitch 6250 Hardware Users Guide
June 2012
Managing Power over Ethernet (PoE)
Understanding Priority Disconnect
Priority Disconnect is Enabled; Same Priority Level on All PD
Reminder. Priority disconnect examples are applicable only when there is inadequate power remaining to
power an incoming device.
When a PD is being connected to a port with the same priority level as all other in the slot, the physical
port number is used to determine whether the incoming PD will be granted or denied power. Due to internal port numbering the following tables should be used to determine port priority, not the physical port
number
Priority
1
2
3
4
5
6
7
8
9
10 11 12
Physical Port Number
11 12 9
10 7
8
5
6
3
4
Priority
13
14
15 16 17 18 19 20 21 22 23 24
Physical Port Number
23/25
24/26
21 22 19 20 17 18 15 16 13 14
1
2
.
Physical Port Priority Tables
Priority Disconnect is Enabled; Incoming PD Port has Highest Priority Level
Reminder. Priority disconnect examples are applicable only when there is inadequate power remaining to
power an incoming device.
When a PD is being connected to a port with a higher priority level than all other in the slot, the incoming
PD will automatically be granted power over the other devices, regardless of its physical port number.
In order to avoid a power budget deficit, another port in the slot is disconnected. In determining which
port to power off, the system software first selects the port with the lowest configured priority level. For
example, if a critical priority device is being added to a slot in which five existing devices are attached to
high priority and one device is attached to a low priority port, the low priority port is automatically
disconnected, regardless of its physical port number.
If all existing devices are attached to with the same lower priority level, the system software disconnects
the port with both the lowest priority level and the highest physical port number. For example, if a critical
priority device is being added to a slot in which six existing devices are attached to high priority, the high
priority port with the highest physical port number is automatically disconnected.
Priority Disconnect is Enabled; Incoming PD Port has Lowest Priority Level
Reminder. Priority disconnect examples are applicable only when there is inadequate power remaining to
power an incoming device.
OmniSwitch 6250 Hardware Users Guide
June 2012
page 5-9
Understanding Priority Disconnect
Managing Power over Ethernet (PoE)
When a PD is being connected to a port with a lower priority level than all other in the slot, the incoming
PD will be denied power, regardless of its physical port number. Devices connected to other higher-priority will continue operating without interruption.
Priority Disconnect is Disabled
Reminder. Priority disconnect examples are applicable only when there is inadequate power remaining to
power an incoming device.
When priority disconnect is disabled, power will be denied to any incoming PD, regardless of its port
priority status (i.e., low, high, and critical) or physical port number (i.e., 1/1).
page 5-10
OmniSwitch 6250 Hardware Users Guide
June 2012
Managing Power over Ethernet (PoE)
Monitoring Power over Ethernet via CLI
Monitoring Power over Ethernet via CLI
To monitor current PoE statistics and settings, use the lanpower combo-port command. The command
output displays a list of all current PoE-capable, along with the following information for each port:
• Maximum power available to the port, in milliwatts
• Actual power used by the port
• Current port status
• Power priority status
• Power on/off status
Aggregate slot and chassis management information is also displayed. This information includes:
• Maximum watts available to the corresponding slot
• Amount of power budget remaining that can be available for PoE modules
• Total amount of power remaining that can be available for additional switch functions
When entering the show lanpower command, you must include a valid slot number in the command line
syntax. For example:
-> show lanpower 1
-> show lanpower 1
Port Maximum(mW) Actual Used(mW)
Status
Priority On/Off
Class
----+-----------+---------------+-----------+---------+------+------1
31000
0
Undefined
Low
OFF
None
2
31000
0
Undefined
Low
OFF
None
3
31000
0
Undefined
Low
OFF
None
4
31000
0
Undefined
Low
OFF
None
Slot 1 Max Watts 225
1 Power Supplies Available
Note. For detailed information on show lanpower command output, refer to the OmniSwitch CLI Reference Guide.
OmniSwitch 6250 Hardware Users Guide
June 2012
page 5-11
Monitoring Power over Ethernet via CLI
page 5-12
Managing Power over Ethernet (PoE)
OmniSwitch 6250 Hardware Users Guide
June 2012
6
Managing OmniSwitch
6250 Stacks
In addition to their working as individual stand-alone switches, OmniSwitch 6250 switches can also be
linked together to work as a single virtual chassis known as a stack. With stacks, users can easily expand
their switching capacity simply by adding additional switches to the stack. In addition, stacks provide
enhanced resiliency and redundancy features. For more information, refer to page 6-4.
OmniSwitch 6250 Hardware Users Guide
June 2012
page 6-1
In This Chapter
Managing OmniSwitch 6250 Stacks
In This Chapter
This chapter provides information on OmniSwitch 6250 switches configured to operate as a single virtual
chassis. Topics described in the chapter include:
• OmniSwitch 6250 stack overview on page 6-4.
• Roles within the stack on page 6-4.
• Stack cabling on page 6-17.
• Slot numbering on page 6-20.
• Hot-Swapping modules in a stack on page 6-25.
• Reloading switches on page 6-27.
• Changing the secondary module to primary on page 6-35.
• Synchronizing switches in a stack on page 6-37.
• Monitoring the stack on page 6-38.
Note. You can also manage and monitor OmniSwitch 6250 stacks through WebView,
Alcatel-Lucent’s embedded web-based device management application. WebView is an interactive and
easy-to-use GUI that can be launched from OmniVista or a web browser. Please refer to WebView’s
online documentation for more information.
page 6-2
OmniSwitch 6250 Hardware Users Guide
June 2012
Managing OmniSwitch 6250 Stacks
OmniSwitch 6250 Stacking Specifications
OmniSwitch 6250 Stacking Specifications
The following table lists OmniSwitch 6250 Stacking specifications.
Models Supporting Stacking
All (Metro and Enterprise switches cannot be mixed in the
same stack)
Maximum Switches in a Stack
Enterprise Platforms - 8
Metro Platforms - 2
Stacking Cable Lengths
(HDMI and SFP+ Copper
30cm
60cm
150cm
Changing Stacking Mode on Metro Models
The OmniSwitch 6250 Metro Models non-combo fiber ports can be set to either stackable or standalone
mode. By default the mode is set to standalone but can be changed in order to support stacking. After
changing the mode the switch must be rebooted.
The following example shows how to change the mode to stackable using the stack set slot mode
command.
-> stack set slot 1 mode stackable reload
Note. The HDMI stacking cables do not contain a locking mechanism. To avoid loose connections, ensure
they are firmly seated.
OmniSwitch 6250 Hardware Users Guide
June 2012
page 6-3
OmniSwitch 6250 Stack Overview
Managing OmniSwitch 6250 Stacks
OmniSwitch 6250 Stack Overview
Users can configure OmniSwitch 6250 switches into a single virtual chassis known as a stack. With stacks,
switching capacity can be easily expanded simply by adding additional switches to the stack. For example, a user can start with a stack composed of two switches and add additional switches to that stack as
network demands increase over time.
Note. Switches should be added one at a time in a stack.
Stacks also provide enhanced resiliency and redundancy features. If a switch in a stack goes down or is
taken offline, the other elements in the stack will continue to operate without disruption. In addition, when
a switch auto-synchronizes at boot-up, or if the user manually synchronize the switches (see “Synchronizing Switches in a Stack” on page 6-37 for more information), operating software and configuration parameters are backed up on all switches in the stack. As a result, the original operating software and
configuration parameters can be easily recovered if corrupted or otherwise lost.
Note on Terminology. In the user guides provided with your OmniSwitch 6250 switch, the terms stack
and virtual chassis are interchangeable referring to OmniSwitch 6250 switches in a stacked configuration.
The terms module, switch, slot, and element are used to refer to individual switches within a stacked
configuration. The terms Chassis Management Module (CMM) and management module refer to those
switches operating in a stack either in the primary or secondary management roles. OmniSwitch 6250
switches operating in an idle role are essentially acting as network interface modules and therefore may be
referred to as Network Interfaces (NIs).
Roles Within the Stack
In order to operate as a virtual chassis, switches within an OmniSwitch 6250 stack are assigned specific
roles. These roles include primary and secondary management roles, idle status, and pass-through. For
detailed descriptions of each of these roles, including their practical functions within the virtual chassis,
refer to the sections below.
Primary and Secondary Management Modules
When OmniSwitch 6250 switches operate in a stack, one switch in the stack always assumes the primary
management role. This primary element is responsible for functions, such as software and configuration
management, web-based management (i.e., WebView), SNMP management, switch diagnostics, and software rollback.
One additional switch in the stack operates in a secondary management role. This switch serves as a
backup, and is always ready to assume the primary management role in the stack if the switch with the
primary role fails or is taken offline for any reason.
Since the secondary module quickly and automatically assumes management responsibilities, switches
operating in idle mode elsewhere in the stack continue to pass traffic without disruption. This redundancy
provides effective safeguards for mission-critical network traffic and is one of the stack’s most important
failover features. Diagrams showing the management module failover sequence for stacks of three or more
switches and stacks of two switches are provided on pages 6-5 and 6-6, respectively.
page 6-4
OmniSwitch 6250 Hardware Users Guide
June 2012
Managing OmniSwitch 6250 Stacks
Roles Within the Stack
Important Note. For management module redundancy to work effectively, the software on all switches
operating in the stack must be synchronized at all times. Refer to “Synchronizing Switches in a Stack” on
page 6-37 for more information.
Primary
1
A stack of four OmniSwitch 6250 switches is operating
normally. The stack consists of a primary module, secondary module, and two elements operating in idle status. (The software on all elements in the stack is
synchronized.)
2
The primary management module in the stack fails or is
taken offline (e.g., powered off or rebooted by the user).
3
The switch operating as the secondary management module
immediately takes over the primary role. Meanwhile, the
adjacent switch—previously operating in idle status—now
assumes the secondary management role.
Secondary
Idle
Idle
!
Offline
Secondary
Idle
Idle
Offline
Primary
Secondary
Idle
Idle
4
Primary
Secondary
If the switch that failed or was taken offline comes back
online, it will assume an idle role in the stack. In other
words, it will act essentially as an NI module in the virtual
chassis, passing traffic via its Ethernet.
Idle
Redundant Management Module Failover (Three or More Switches)
OmniSwitch 6250 Hardware Users Guide
June 2012
page 6-5
Roles Within the Stack
Managing OmniSwitch 6250 Stacks
1
A stack of two OmniSwitch 6250 switches is operating
normally. The stack consists of a primary module and a
secondary module. (The software on both elements in
the stack is synchronized.)
2
The primary management module fails or is taken
offline (e.g., powered off or rebooted by the user).
3
The switch operating as the secondary management module
immediately takes over the primary role. It is at this point
essentially operating as a stand-alone switch.
Primary
Secondary
Offline
!
Secondary
Offline
Primary
4
Secondary
Primary
If the switch that previously failed or was taken offline
comes back online, it will assume the secondary role in the
stack.
Redundant Management Module Failover (Two Switches)
page 6-6
OmniSwitch 6250 Hardware Users Guide
June 2012
Managing OmniSwitch 6250 Stacks
Roles Within the Stack
Primary Management Module Selection
For a stack of OmniSwitch 6250 switches to operate as a virtual chassis, there must be a mechanism for
dynamically selecting the switch within the stack that will assume the primary management role.
OmniSwitch 6250 switches use three different methods for selecting the primary switch. These methods
are:
• Chassis MAC address
• Saved slot number
• Chassis uptime
Note. Information on secondary management module selection is provided on page 6-10. Information on
dynamic assignment of idle module roles is provided on page 6-12.
Using the Chassis MAC Address
By default, the primary management role will be given to the switch with the lowest chassis MAC
address. However, for this to occur, all switches in the stack must be booted within 15 seconds of each
other. In addition, switches in the stack must have no preconfigured slot information. Because of these
two conditions, the MAC address method for selecting the primary module usually occurs with new “out
of the box” switches, or switches from which any preconfigured slot information has been cleared.
For more information on using the lowest MAC address to determine the primary switch in a stack, refer
to the diagram below:
1 A stack of four OmniSwitch 6250 switches is booted. All
switches are powered on within 15 seconds of each other. In
addition, there is no preconfigured slot information on any of
the switches.
00:d0:95:b2:3c:8e
00:d0:95:b2:2a:ab
2 When the stack is booted, system software detects the lowest
MAC address. In this stacked configuration, the lowest
MAC address is 00:d0:95:b2:1c:ff.
00:d0:95:b2:1c:ff
00:d0:95:b2:5b:8d
3 The system software immediately assigns the correspond-
00:d0:95:b2:3c:8e
ing switch the primary management role. When the switch
is assigned as primary, it is also dynamically assigned the
lowest slot number in the stack—i.e., slot 1. This slot
number information is saved to the boot.slot.cfg file,
located in the switch’s /flash file directory.
00:d0:95:b2:2a:ab
Primary Module
00:d0:95:b2:5b:8d
Primary Management Module Selection Using the Lowest Chassis MAC Address
Note. During the boot process, all other switches in the stack are also dynamically assigned unique slot
numbers. As with the primary switch, these slot numbers are saved to the boot.slot.cfg file, located in the
/flash file directory of each switch. For more information on dynamic slot number assignment, refer to
“Slot Numbering” on page 6-20.
OmniSwitch 6250 Hardware Users Guide
June 2012
page 6-7
Roles Within the Stack
Managing OmniSwitch 6250 Stacks
Using Saved Slot Information
The saved slot number is the slot number the switch will assume following a reboot. This information is
stored in a switch’s boot.slot.cfg file; the switch reads its slot number assignment from this file at bootup
and assumes the specified slot number within the stack.
If switches in a stacked configuration have no preconfigured slot assignments, the slot number for each
switch is dynamically assigned by the system software. Slot numbers can also be manually assigned by the
user. For more information on manually assigning slot numbers, refer to “Manual Slot Number Assignment” on page 6-23.
When a stack with preconfigured slot information is booted, it is not the lowest MAC address that determines the primary management module. Instead, the slot information stored in each switch’s boot.slot.cfg
is read by the system software and used in determining the primary. The switch with the lowest saved slot
number becomes the primary management module.
Note. Although, for ease-of-management purposes, it is recommended that slot numbers are assigned
beginning with slot number 1, it is not a requirement. In other words, a stack of four switches can have slot
assignments 3, 4, 5, and 6. However, it is important that each element in a stack is assigned a unique slot
number. Do not assign duplicate slot numbers to elements in a stack. Otherwise, one or more switches will
be forced into pass-through mode. For more information on pass-through mode, refer to page 6-13.
For more information on using saved slot information to determine the primary switch in a stack, refer to
the diagram below:
Saved Slot 6
Saved Slot 5
Saved Slot 4
Saved Slot 3
Reload
1 Four OmniSwitch 6250 switches are stacked; all switches are
connected via stacking cables. The user configures each switch
to have a unique saved slot number. When each saved slot number is configured, the information is automatically
written to the boot.slot.cfg file located in the /flash directory of
each switch.
2 The user reloads all the elements in the stack either by
issuing the reload all command or by physically powering
off and then powering on all switches.
Assumes Slot 6
Assumes Slot 5
Assumes Slot 4
Assumes Slot 3
Slot 6
3 Instead of assigning the primary management module
based on the lowest MAC address, the system software
reads the slot information from each switch’s
boot.slot.cfg file during the boot process. The switches
in the stack come up using their assigned slot numbers.
4 The switch with the lowest assigned slot number automatically
Slot 5
Slot 4
Primary: Slot 3
assumes the primary management role. In this case, the switch
assigned slot 3 has the lowest slot number in the stack and
becomes the primary management module.
Primary Management Module Selection Using Saved Slot Information
page 6-8
OmniSwitch 6250 Hardware Users Guide
June 2012
Managing OmniSwitch 6250 Stacks
Roles Within the Stack
Using Switch Uptime
A user can override both the MAC address and saved slot methods for determining a stack’s primary
management module. This is done by controlling the uptime of switches in the stack. If all elements of a
stack are powered off, the user can force a particular switch to become primary by powering on that
switch and waiting a minimum of 15 seconds before powering on any other switches. This can be useful if
the user wants a switch placed in a specific location, e.g., the top-most switch in a stack, to become the
primary.
As with the lowest MAC address method, the primary management module is dynamically assigned slot
number 1 when the stack is booted.
For more information on using saved slot information to determine the primary switch in a stack, refer to
the diagram below:
1 Four OmniSwitch 6250 switches are stacked and connected via stacking
Off
cables. All switches are currently powered off. The user powers on a single switch in the stack. In this case, the bottom-most switch is powered
on.
Off
Off
Powered On
Off
2 The user allows a minimum of 15 seconds to pass. Because no
Off
other switches have joined the stack, the switch that was powered
on considers itself a stand-alone. The switch assumes a primary
role by default—even if there is a high saved slot number in its
boot.slot.cfg file (e.g., 8).
Off
Primary
(Saved Slot 8)
Powered On
3 The user now powers on the remaining switches in the stack in short
Powered On
succession.
Powered On
Primary
(Saved Slot 8)
4 In this example, when the remaining switches come online, each has a
Saved Slot 3
lower saved slot value than the switch powered on at step 1. However,
the switch powered on at step 1—with its slot value of 8—retains its
primary management role. The joining switches are essentially ineligible
for primary status because they are considered “late arrivals.”
Saved Slot 1
Saved Slot 2
Primary
(Saved Slot 8)
For the primary switch to forfeit its role to the switch with the lowest
assigned slot number (in this case, slot number 1), the stack must be
rebooted by the user either by issuing the reload all command or by
powering off and powering on all switches in close succession.
Primary Management Module Selection Using Switch Uptime
OmniSwitch 6250 Hardware Users Guide
June 2012
page 6-9
Roles Within the Stack
Managing OmniSwitch 6250 Stacks
Secondary Management Module Selection
In order to provide effective management module redundancy, all OmniSwitch 6250 stacked configurations dynamically assign a backup, or secondary, management module during the boot process.
OmniSwitch 6250 stacks use two different methods for selecting the secondary switch. These methods are:
• Stacking connection to the primary switch
• Saved slot number
Using the Stacking Connection to the Primary Switch
By default, the switch that is connected to the primary switch’s stacking port A is automatically assigned
the secondary management role. This applies to stacks on which there is no preassigned slot information—
i.e., there is no boot.slot.cfg file present in any switch.
For more information on using the stacking connection to the primary switch to determine the secondary
management module, refer to the diagram below:
A B
1 Four OmniSwitch 6250 switches are stacked
and connected via stacking cables, as shown.
All switches are currently powered off. None
of the switches have preassigned slot numbers—i.e., there are no boot.slot.cfg files
present. The user powers on all switches in the
stack in close succession and the stack begins
the boot process.
00:d0:95:b2:3c:8e
00:d0:95:b2:2a:ab
00:d0:95:b2:1c:ff
(Primary - Slot 1)
2 When the elements in the stack come online,
the switch with the lowest MAC address is
given the primary management role and is
dynamically assigned slot number 1.
00:d0:95:b2:5b:8d
A B
Idle
3 By default, the switch connected to the
primary’s stacking port A is automatically
assigned the secondary management role.
The secondary switch is dynamically
assigned slot number 2.
Idle
Primary
Secondary - Slot 2
Secondary Management Module Selection Using the Stacking Connection to the Primary Switch
Note. For information on dynamic slot numbering for idle elements within the stack, refer to “Idle Module
Role” on page 6-12 and “Slot Numbering” on page 6-20.
page 6-10
OmniSwitch 6250 Hardware Users Guide
June 2012
Managing OmniSwitch 6250 Stacks
Roles Within the Stack
Using Saved Slot Information
If a stack with preassigned slot information for each switch is booted, the switch with the second lowest
slot value is assigned the secondary management role. For example, if a stack of four switches is booted
and the preassigned slot values for each switch are 1, 2, 3, and 4, the switch with the slot value of 2 is
assigned the secondary role. Meanwhile, the switch with the slot value of 1 is assigned the primary
management role (see page 6-8).
For more information on using saved slot information to determine the secondary management module in
a stack, refer to the diagram below:
Saved Slot 1
1 Four OmniSwitch 6250 switches are stacked; all switches are con-
Saved Slot 3
nected via stacking cables. The user configures each switch to
have a unique saved slot number, as shown. When the saved slot
number is configured, the information is automatically written to
the boot.slot.cfg file located in the /flash directory of each switch.
Saved Slot 4
Saved Slot 2
Reload
2 The user reloads all the elements in the stack either by issuing
the reload all command or by physically powering off and then
powering on all switches.
Assumes Slot 1
Assumes Slot 3
3 The system software reads the slot information from each
switch’s boot.slot.cfg file during the boot process. The switches
in the stack come up using their assigned slot numbers.
Assumes Slot 4
Assumes Slot 2
Primary - Slot 1
Slot 3
4 The switch with the lowest assigned slot number automatically
assumes the primary management role. The switch with the
second lowest assigned slot number becomes the secondary
management role, regardless of whether it is attached to stacking
port A of the primary switch. In this case, the switch assigned
slot 2 has the second-lowest slot number in the stack and becomes
the secondary management module.
Slot 4
Secondary - Slot 2
Secondary Management Module Selection Using Saved Slot Information
Reminder. Each element in a stack should always be assigned a unique slot number. Do not assign
duplicate slot numbers to elements in a stack. Otherwise, one or more switches will be forced into
pass-through mode. For more information on pass-through mode, refer to page 6-13.
OmniSwitch 6250 Hardware Users Guide
June 2012
page 6-11
Roles Within the Stack
Managing OmniSwitch 6250 Stacks
Idle Module Role
Switches that are not assigned either the primary or secondary role in a stack are, by default, assigned the
role of idle modules. These idle modules operate similarly to Network Interface (NI) modules in a chassisbased switch. It is the job of idle modules to send and receive traffic.
In the event of a management module failure within the stack, the idle module with the next lowest slot
number in the stack will automatically assume the secondary management role. In other words, if the
primary module in a stack goes down for any reason and the secondary takes over the primary management role, the switch must now assign a new secondary module. The idle element with the next lowest slot
number assumes this new responsibility until the situation is corrected and all elements in the stack are
reloaded.
Note. Primary and secondary management modules also send and receive traffic on their Ethernet. The
primary management module is like an NI module with the added task of overall stack management; the
secondary management module is like an NI with the added responsibility of backing up the primary
module in the event of a primary module failure. In other words, all modules in the virtual chassis can send
and receive user data, regardless of their roles.
For more information on dynamic assignment of idle modules in a stack, refer to the diagram below:
1 Four OmniSwitch 6250 switches are stacked; all switches are con-
nected via stacking cables. The stack is booted.
2 The primary and secondary management modules are dynamically
Primary
assigned using any of the methods outlined on pages 6-7 through
6-11.
Secondary
Idle
Idle
3 The system software automatically assigns the remaining elements
in the stack the idle module role. These modules act as Network
Interface (NI) modules.
Primary
Secondary
In the event of a primary-to-secondary failover, the idle module
with the next-lowest slot number in the stack will assume the
secondary—or backup—management role.
Secondary Management Module Selection Using Saved Slot Information
page 6-12
OmniSwitch 6250 Hardware Users Guide
June 2012
Managing OmniSwitch 6250 Stacks
Roles Within the Stack
Pass-Through Mode
The pass-through mode is a state in which a switch has attempted to join a stack but has been denied
primary, secondary, and idle status. When a switch is in the pass-through mode, its Ethernet ports are
brought down (i.e, they cannot pass traffic). Its stacking cable connections remain fully functional and can
pass traffic through to other switches in the stack. In this way, the pass-through mode provides a mechanism to prevent the stack ring from being broken. However, note that when a switch comes up in passthrough mode, it should not be left unresolved. Pass-through mode is essentially an error state that should
be corrected immediately.
Note. When a switch is in pass-through mode, its information will not display in hardware monitoring
commands such as show chassis, show ni, show module, etc.
Conditions that can trigger a switch to enter pass-through mode include:
• Duplicate slot numbers have been assigned within the stack
• The user has manually forced the switch into pass-through mode using the stack clear slot command
Note. If a switch is forced into pass-through mode, the rest of the stack will not be disrupted. Any
elements in the stack not operating in pass-through mode continue to operate normally.
The most common reason for one or more switches to enter pass-through is duplicate slot number assignments within the stack. So, in order to avoid pass-through mode, it is useful to keep track of the current
saved slot numbers on all elements in the stack. Slot number assignments are stored in the boot.slot.cfg
file in the /flash directory of each switch.
If the stack is booted and the same slot number is discovered on two or more switches, the switch with the
lowest MAC address is allowed to come up and operate normally. Meanwhile, switches with the duplicate
slot number and a higher MAC address come up in pass-through mode. To check the current slot number
stored in each switch’s boot.slot.cfg file, use the show stack topology command. For example:
-> show stack topology
Link A Link A
Link B Link B
Saved Link A Remote Remote Link B Remote Remote
Slot
State
NI
Port
State
NI
Port
----+-----------+--------+------+-------+-------+-------+-------+-------+------1 PRIMARY
RUNNING
1
UP
3
StackA UP
2
StackA
2 SECONDARY
RUNNING
2
UP
1
StackB UP
3
StackB
3 IDLE
RUNNING
2
UP
1
StackA UP
2
StackB
NI
Role
State
In this example, note that both slots 2 and 3 have a saved slot value of 2. If this stack is rebooted, a duplicate slot error will occur and the switch with the lower MAC address will be given the secondary management role. The slot with the higher MAC address will be forced into the pass-through mode.
OmniSwitch 6250 Hardware Users Guide
June 2012
page 6-13
Roles Within the Stack
Managing OmniSwitch 6250 Stacks
To avoid a pass-through condition following a reboot, make sure that all saved slot values for the stack are
unique. Use the stack set slot command. For example, change the saved slot value for the idle switch in
slot 3 from 2 to 3:
-> stack set slot 3 saved-slot 2
Use the show stack topology command to verify the change:
-> show stack topology
Link A Link A
Link B Link B
Saved Link A Remote Remote Link B Remote Remote
Slot
State
NI
Port
State
NI
Port
----+-----------+--------+------+-------+-------+-------+-------+-------+------1 PRIMARY
RUNNING
1
UP
3
StackA UP
2
StackA
2 SECONDARY
RUNNING
2
UP
1
StackB UP
3
StackB
3 IDLE
RUNNING
3
UP
1
StackA UP
2
StackB
NI
Role
State
Recovering from Pass-Through Mode (Duplicate Slot Numbers)
The first step in recovering from pass-through is to determine which modules are currently operating in
pass-through, as well as the reason for the pass-through state. To view this information, use the
show stack topology command. For example:
-> show stack topology
Link A Link A
Link B Link B
Saved Link A Remote Remote Link B Remote Remote
Slot
State
NI
Port
State
NI
Port
----+-----------+--------+------+-------+-------+-------+-------+-------+------1 PRIMARY
RUNNING
1
UP
1001
StackA UP
2
StackA
2 SECONDARY
RUNNING
2
UP
1
StackB UP
1001
StackB
1001 PASS-THRU
DUP-SLOT
2
UP
1
StackA UP
2
StackB
NI
Role
State
Switches operating in pass-through mode are given distinct slot numbers. These slot numbers are not
related to their position in the stack. Instead, they are assigned the prefix “100,” followed by the numerical order in which they were forced into pass-through (1001–1008).
Note. For pass-through elements 1001 through 1008, the slot indicator LED on the chassis front panel
blinks 1 through 8, respectively. For example, if a module enters pass-through and has the slot number
1004, the LED for the module blinks the number 4. For more information on the slot indicator LED, refer
to “LED Status” on page 2-20.
In the example above, the switch with the NI (i.e., slot) number 1001 is operating in pass-through. Note
that the role assignment is PASS-THRU; also, the state displays DUP-SLOT, or duplicate slot number.
This can be further verified by looking down the saved slot column in the table. Note that slot 2, operating
in the secondary management role, has a saved slot value of 2. Slot 1001, operating in pass-through, also
has a saved slot value of 2.
page 6-14
OmniSwitch 6250 Hardware Users Guide
June 2012
Managing OmniSwitch 6250 Stacks
Roles Within the Stack
To resolve this pass-through condition, simply assign slot 1001 a new saved slot value and reboot the
module. This can be done in either of two ways:
• Use the stack set slot command to assign the new value, then use the reload pass-through command
to reboot the module:
-> stack set slot 1001 saved-slot 3
-> reload pass-through 1001
• Use the stack set slot command to assign the new slot value and, using the optional reload syntax in
the command line, reboot the module:
-> stack set slot 1001 saved-slot 3 reload
When the module comes up, it assumes the new, unique slot position—in this case, slot 3—and, because it
now has the highest slot number in the stack, it assumes an idle role (leaving the primary and secondary
roles to slots 1 and 2, respectively). There are now no duplicate numbers in the stack and all elements are
operating normally:
-> show stack topology
Link A Link A
Link B Link B
Saved Link A Remote Remote Link B Remote Remote
Slot
State
NI
Port
State
NI
Port
----+-----------+--------+------+-------+-------+-------+-------+-------+------1 PRIMARY
RUNNING
1
UP
3
StackA UP
2
StackA
2 SECONDARY
RUNNING
2
UP
1
StackB UP
3
StackB
3 IDLE
RUNNING
3
UP
1
StackA UP
2
StackB
NI
Role
State
OmniSwitch 6250 Hardware Users Guide
June 2012
page 6-15
Roles Within the Stack
Managing OmniSwitch 6250 Stacks
In some pass-through conditions (for example, larger stacks where multiple switches are in pass-through
mode), it might be desirable to correct any duplicate saved slot assignments and then reboot the entire
stack. The recovery from pass-through can be accomplished with fewer steps than reassigning slot
numbers and rebooting modules on a slot-by-slot basis. However, be sure that there is no mission-critical
traffic being passed on the non-pass-though modules; traffic will be interrupted on these modules during
the reboot.
The following example shows a large stack with multiple elements operating in pass-through mode:
-> show stack topology
Link A Link A
Link B Link B
Saved Link A Remote Remote Link B Remote Remote
Slot
State
NI
Port
State
NI
Port
----+-----------+--------+------+-------+-------+-------+-------+-------+------4 IDLE
RUNNING
4
UP
5
StackB UP
3
StackA
5 IDLE
RUNNING
5
UP
1001
StackB UP
4
StackA
1001 PASS-THRU
DUP-SLOT
2
UP
2
StackB UP
5
StackA
2 SECONDARY
RUNNING
2
UP
1003
StackB UP
1001
StackA
1003 PASS-THRU
DUP-SLOT
2
UP
1002
StackB UP
2
StackA
1002 PASS-THRU
DUP-SLOT
2
UP
1
StackB UP
1003
StackA
1 PRIMARY
RUNNING
1
UP
3
StackB UP
1002
StackA
3 IDLE
RUNNING
3
UP
4
StackB UP
1
StackA
NI
Role
State
This disordered stack topology, with its three modules operating in pass-through mode, can be corrected
by entering the following commands:
->
->
->
->
->
->
->
->
->
stack set slot
stack set slot
stack set slot
stack set slot
stack set slot
stack set slot
stack set slot
stack set slot
reload all
4 saved-slot 1
5 saved-slot 2
1001 saved-slot 3
2 saved-slot 4
1003 saved-slot 5
1002 saved-slot 6
1 saved-slot 7
3 saved-slot 8
When all elements in the stack come up following the reboot, there are no longer any duplicate slot
numbers in the stack. In addition, the stack topology is more orderly and, as a result, easier to manage:
-> show stack topology
Link A Link A
Link B Link B
Saved Link A Remote Remote Link B Remote Remote
Slot
State
NI
Port
State
NI
Port
----+-----------+--------+------+-------+-------+-------+-------+-------+------1 PRIMARY
RUNNING
1
UP
2
StackB UP
8
StackA
2 SECONDARY
RUNNING
2
UP
3
StackB UP
1
StackA
3 IDLE
RUNNING
3
UP
4
StackB UP
2
StackA
4 IDLE
RUNNING
4
UP
5
StackB UP
3
StackA
5 IDLE
RUNNING
5
UP
6
StackB UP
4
StackA
6 IDLE
RUNNING
6
UP
7
StackB UP
5
StackA
7 IDLE
RUNNING
7
UP
8
StackB UP
6
StackA
8 IDLE
RUNNING
8
UP
1
StackB UP
7
StackA
NI
page 6-16
Role
State
OmniSwitch 6250 Hardware Users Guide
June 2012
Managing OmniSwitch 6250 Stacks
Stack Cabling
Stack Cabling
Switches in a stack are connected to each other by stacking cables. These stacking cables provide highspeed, dual-redundant links between switches in a stack.
Stacking cables for OmniSwitch 6250 switches must be connected in an A-B pattern. In other words, the
cable connected to stacking port A of one switch must be connected to stacking port B of the adjacent
switch. In addition, for a stack to have effective redundancy, a redundant stacking cable must be installed
between the upper-most and bottom-most switch at all times. This provides effective failover in the event
of a sta cking link or module failure within the stack.
The diagram below shows the required stacking cable pattern. For detailed information on assembling a
stack and connecting the cables, refer to Chapter 2, “OmniSwitch 6250 Chassis and Hardware Components.”
Note. When planning the stack cabling configuration, keep in mind that the switch connected to stacking
port A of the primary switch will be assigned the secondary management role by default.
A B
A stack of four switches in a crossed (stacking port
A to stacking port B) configuration. Note that a
redundant stacking cable connection exists between
the top and bottom switches. This connection is
required for effective redundancy across the stack.
Example of Stacking Cable Pattern (Chassis Rear Panels Shown)
Note. The HDMI stacking cables do not contain a locking mechanism. To avoid loose connections, ensure
they are firmly seated.
OmniSwitch 6250 Hardware Users Guide
June 2012
page 6-17
Stack Cabling
Managing OmniSwitch 6250 Stacks
Redundant Stacking Cable Connection
OmniSwitch 6250 switches allow redundant stacking cable connections between the top-most and bottommost switches in a stack.
Important. For a stacked configuration to have effective redundancy, a redundant stacking cable must be
installed between the upper-most and bottom-most switch in the chassis at all times.
The figure below shows how the redundant connection between the top and bottom switches in the stack
ensures that data will continue to flow throughout the stack, even in the event of a connection failure at
one of the stacking cables.
Stacking Cables
Chassis Front
1
Data enters slot 1 via an Ethernet port. The data is passed
to slot 2 over the stacking cable connection, then exits slot
2 via one of its Ethernet ports.
2
The stacking connection between slots 1 and 2 goes
down unexpectedly. Data can no longer travel directly
between slot 1 and 2.
Slot 1
Slot 2
Slot 3
Slot 4
Slot 1
Slot 2
Slot 3
Slot 4
However, because there is a redundant connection (the
cable between slot 1 and slot 4), data is immediately
passed to slot 4, then quickly traverses slot 3 and exits
slot 2 to its destination.
Stacking Cable Redundancy: Recovery Following a Stacking Link Failure
page 6-18
OmniSwitch 6250 Hardware Users Guide
June 2012
Managing OmniSwitch 6250 Stacks
Stack Cabling
Redundant stacking cables provide a form of dual redundancy. As shown in the figure above, the redundant cable allows traffic to flow in the event of a stacking link failure. The redundant cable also provides
failover if a switch goes down within the stack. Traffic continues to flow between the modules that remain
operational, as shown in the diagram below:
Stacking Cables
Chassis Front
Slot 1
1
Data enters slot 1 through an Ethernet port. The data
traverses slot 2 via the stacking cables and exits slot 3
through one of its Ethernet ports.
2
The slot 2 switch goes down unexpectedly. Data can no
longer move through slot 2.
Slot 2
Slot 3
Slot 4
Slot 1
Slot 2
However, because there is a redundant connection (the
cable between slot 1 and slot 4), data immediately
traverses slot 4 and then exits slot 3 to its destination.
Slot 3
Slot 4
Stacking Cable Redundancy: Recovery Following a Switch Failure within the Stack
Checking Redundant Stacking Cable Status
To check whether a redundant stacking cable connection exists between the top-most and bottom-most
switches in the stack, use the show stack status command. For example:
-> show stack status
Redundant cable status
: present
In this example, a redundant stacking cable connection is present between the top-most and bottom-most
switches in the stack.
OmniSwitch 6250 Hardware Users Guide
June 2012
page 6-19
Slot Numbering
Managing OmniSwitch 6250 Stacks
Slot Numbering
For a stack of OmniSwitch 6250 switches to operate as a virtual chassis, each module in the stack must be
assigned a unique slot number. To view the current slot assignments for a stack, use the show ni or show
module commands. The slot number is also displayed on the front panel of each switch by the LED
located on the left side of the chassis (refer to “LED Status” on page 2-20 for more information).
There are two ways stacking modules are assigned slot numbers:
• Dynamic slot number assignment by the system software
• Manual slot number assignment by the user
page 6-20
OmniSwitch 6250 Hardware Users Guide
June 2012
Managing OmniSwitch 6250 Stacks
Slot Numbering
Dynamic Slot Number Assignment
Dynamic slot number assignment occurs when there are no boot.slot.cfg files present in the switches’
/flash directories. This is the case for new, “out of the box,” switches that have not been previously
booted.
When a brand new stack (or stack with no boot.slot.cfg files) is booted, the system software automatically detects the module with the lowest MAC address. This module is assigned the primary management
role (see page 6-4) and, by default, is given the slot number 1. The module connected to the primary’s
stacking port A is automatically assigned the secondary management role and given the slot number 2.
As the other modules in the stack become operational, they are assigned idle roles and are automatically
assigned unique slot numbers. The slot numbering for idle modules is determined by each module’s physical location in the stack. Refer to the diagrams below for more information on dynamic slot numbering.
Note. As the slot numbers are dynamically assigned, boot.slot.cfg files are auto-generated in the /flash
directory of each switch. When modules are subsequently booted, each switch reads its slot number
assignment from this file and comes up accordingly.
In this example, the fourth switch from the top is
elected the primary management module for the
stack. (It can be assumed that this switch has the
lowest MAC address in the stack.) This switch is
automatically assigned slot number 1.
The switch immediately below is connected to the
primary switch’s stacking port A and, as a result, is
assigned the secondary management role and given
slot number 2.
Slot 1 - Primary
Slot 2 - Secondary
Slot 3 - Idle
The system software allows the switch immediately
below slot 2 to have the next slot number preference.
It is assigned an idle role and given the slot number 3.
The switch immediately below slot 3 is given the slot
number 4, and so on. When the bottom of the stack is
reached, the slot numbering sequence resumes at the
top of the stack, as shown. This helps ensure a more
ordered and manageable stack topology.
Slot 4 - Idle
Dynamic Slot Numbering Example 1
OmniSwitch 6250 Hardware Users Guide
June 2012
page 6-21
Slot Numbering
Managing OmniSwitch 6250 Stacks
If the switch with the lowest MAC address happens to be the bottom-most module in the stack, slot
numbering will not resume from the top of the stack. Instead, the system software will select the secondary module using the standard method (i.e., the switch connected to the primary’s stacking port A), then
continue to number the stack from the bottom up. This intuitive slot assignment provides the cleanest and
most manageable stack topology. Refer to the diagram below for more information:
In this example, the bottom switch is elected
the primary management module for the stack.
(It can be assumed that this switch has the lowest MAC address in the stack.) This switch is
automatically assigned slot number 1.
Slot 4 - Idle
Slot 3 - Idle
Slot 2 - Secondary
Slot 1 - Primary
The switch immediately above is connected to
the primary switch’s stacking port A and, as a
result, is assigned the secondary management
role and given slot number 2.
The system software then sequentially assigns
slot numbers up the stack. In other words, the
switch immediately above slot 2 is assigned
the slot number 3; the switch immediately
above slot 3 is assigned the slot number 4, and
so on. This default procedure ensures the most
ordered and manageable stack topology out of
the box.
Dynamic Slot Numbering Example 2
page 6-22
OmniSwitch 6250 Hardware Users Guide
June 2012
Managing OmniSwitch 6250 Stacks
Slot Numbering
Manual Slot Number Assignment
To manually assign slot numbers to one or more modules in a stack, use the stack set slot command. This
command writes slot information to the boot.slot.cfg file located in a switch’s /flash directory. It is this
saved slot information that the switch will assume following a reboot.
Manually assigning slot numbers can be useful in reordering existing slot numbers in order to create a
sequential numbering scheme from the top of the stack to the bottom (or vice-versa). Refer to the following example:
Slot 3 - Idle
Slot 4 - Idle
Slot 2 - Secondary
Slot 1 - Primary
Stack Numbering Before Manual Assignment
This example, taken from page 6-21, shows a stack in which the primary and secondary switches are physically positioned in the middle of the stack. Although the stack will operate normally with this primary and
secondary module positioning, it may be preferable for management purposes to have the primary and
secondary switches at either the top or the bottom of the stack. For this example, the primary and secondary roles will be assigned to the top of the stack. This is accomplished by entering the following
commands:
->
->
->
->
->
stack set slot
stack set slot
stack set slot
stack set slot
reload all
3
4
2
1
saved-slot
saved-slot
saved-slot
saved-slot
1
2
3
4
Because slot 3 is the top-most switch in the stack, it is reassigned the slot 1 (i.e., primary) position;
because slot 4 is located immediately below slot 3, it is reassigned the slot 2 (i.e., secondary) position, etc.
Note that the modules were not reloaded one-by-one, even though the stack set slot command provides
optional syntax for doing so. Instead, new slot number information is first saved to each boot.slot.cfg file
across the stack. The reboot is saved for last in order to avoid duplicate slot numbers within the stack,
which would cause unwanted pass-though mode conditions (see page 6-13).
OmniSwitch 6250 Hardware Users Guide
June 2012
page 6-23
Slot Numbering
Managing OmniSwitch 6250 Stacks
When the stack comes up following the reboot, the manually-configured slot numbers display as follows:
Slot 1 - Primary
Slot 2 - Secondary
Slot 3 - Idle
Slot 4 - Idle
Stack Numbering Before Manual Assignment
The stack set slot command can also be used to manually correct duplicate saved slot assignments within
the stack topology. Refer to pages 6-13 through 6-15 for detailed information.
Reverting to the Dynamic Slot Numbering Model
To clear the boot.slot.cfg files from the stack’s /flash directories, use the stack clear slot command on all
modules and then reboot the stack. For example:
->
->
->
->
->
stack clear
stack clear
stack clear
stack clear
reload all
slot
slot
slot
slot
1
2
3
4
The commands shown above clear the saved slot information from all modules in an eight-module stacked
configuration and then reboot the stack. Because the system software no longer has preassigned slot information to read during the boot process, the stack uses the dynamic slot number assignment method
described on page 6-21.
page 6-24
OmniSwitch 6250 Hardware Users Guide
June 2012
Managing OmniSwitch 6250 Stacks
Hot-Swapping Modules In a Stack
Hot-Swapping Modules In a Stack
As with chassis-based switches, NI modules within an OmniSwitch 6250 virtual chassis are hot-swappable. NI modules are essentially those modules operating in the stack in idle mode. These modules can be
removed from, or added to, an existing stack without disrupting other modules in the stack.
Removing Switches from an Existing Stack
When removing switches from an existing stack, observe the following important guidelines:
• Do not attempt to hot-swap modules operating in primary or secondary management roles
• Be sure the stacking cables and stacking cable redundancy are not disrupted
Hot-swapping is intended for switches in idle and, if applicable, pass-through status only. Removing
primary or secondary management modules from a stack will trigger a failover sequence, i.e., one or more
additional modules within the stack must reload in order to reassign the management roles. Whenever
possible, avoid removing a switch that is operating as a primary or secondary management module.
Also, removing a switch from a stacked configuration can disrupt stack cabling at the rear of the stack.
When removing a module, be sure that stacking link integrity, including important stacking cable redundancy, is maintained between all remaining modules. For more information on stacking cable connections, refer to page 6-17.
Inserting Switches Into an Existing Stack
When inserting switches into an existing stack, observe the following important guidelines:
• Avoid duplicate saved slot numbers
• Never attempt to operate more than the supported number of switches in a single stack
• Make sure all switches are running the same software version.
To avoid duplicate slot numbers, simply make sure that any modules being added to an existing stack have
been cleared of preassigned slot information. In other words, verify that there is no boot.slot.cfg file
present in the /flash directory of any switch being added. When the switch is connected to the existing
stack and booted, the system software automatically assigns it a unique slot number. No duplicate slot
errors occur.
Note. If it is preferable to add a switch with an existing boot.slot.cfg file to a stack, be sure that the saved
slot number of the incoming switch is not already assigned to a switch operating in the stack.
OmniSwitch 6250 Hardware Users Guide
June 2012
page 6-25
Hot-Swapping Modules In a Stack
Managing OmniSwitch 6250 Stacks
Merging Stacks
Merging stacks involves connecting two or more operational stacks and attempting to reboot them as a
single virtual chassis. In most cases, errors will result. To merge stacks without causing errors, select one
stack that is to remain up and running and then add modules from the other stack(s) by following the steps
below:
1 Make sure all switches are running the same software version.
2 Clear the saved slot information from all incoming modules. This will ensure that they are each
assigned unique slot numbers when they join the stack.
3 After clearing the saved slot information, power off all incoming modules.
4 Connect the stacking cables for all incoming modules to the existing, operational stack as required. Be
sure to provide stacking cable redundancy. For information on stack cabling, refer to page 6-17.
5 Power on all incoming modules.
Note. No more than eight switches can operate in a single stacked configuration at any time.
page 6-26
OmniSwitch 6250 Hardware Users Guide
June 2012
Managing OmniSwitch 6250 Stacks
Reloading Switches
Reloading Switches
Reloading is essentially a soft boot of a switch. Users can reload stacked modules operating in any role—
i.e., primary, secondary, idle, and pass-through. Refer to the sections below for more information.
Reloading the Primary Management Module
If the switch with the primary management role is reloaded, the switch with the secondary role automatically takes over primary management functions. In other words, the switch with the secondary role
assumes the primary role as soon as the reload is initiated.
Meanwhile, the idle switch with the next lowest slot number automatically assumes the secondary role.
When the reloaded switch (the former primary module) comes back up, it assumes an idle role within the
stack.
To reload the primary management module, use the reload command. The optional syntax primary can
be used in the command line, but is not required. For example:
-> reload primary
Note. A primary management module reload can also be scheduled for a later time or date. For information on scheduling a primary module reload, as well as additional command details, refer to the
OmniSwitch CLI Reference Guide.
Primary - Slot 1
Secondary - Slot 2
Idle - Slot 3
1 In this stack of four OmniSwitch 6250 switches, the slot 1 switch
is the primary management module. The slot 2 switch is the secondary. Slots 3 and 4 are operating in idle roles.
Idle - Slot 4
-> reload primary
2 The user reloads the stack’s primary management module by issuing the reload primary command. Any data flow on the primary
switch’s Ethernet is interrupted.
Booting...
Primary - Slot 2
Secondary - Slot 3
Idle - Slot 4
3 The secondary switch automatically takes over the primary role.
The idle switch with the next-lowest slot number—in this case,
slot 3—automatically becomes the secondary management module.
The slot 4 switch remains unaffected. In addition, Ethernet traffic
on slots 2, 3, and 4 remains unaffected.
Idle - Slot 1
Primary - Slot 2
4 When the rebooted switch comes back up, it assumes an idle role
within the stack.
Secondary - Slot 3
Idle - Slot 4
Reloading the Primary Management Module In a Stack of Three or More
OmniSwitch 6250 Hardware Users Guide
June 2012
page 6-27
Reloading Switches
Managing OmniSwitch 6250 Stacks
If there are only two switches in the stack, the switch that was reloaded (the former primary) assumes the
secondary role when it comes back up.
1 In this stack of two OmniSwitch 6250 switches, the slot 1 switch
Primary - Slot 1
is the primary management module. The slot 2 switch is the secondary.
Secondary - Slot 2
2 The user reloads the stack’s primary management module by issuing
-> reload primary
the reload primary command. Any data flow on the primary
switch’s Ethernet is interrupted.
3 The secondary switch automatically takes over the primary role.
Booting...
Primary - Slot 2
Secondary - Slot 1
Ethernet traffic on slot 2 remains unaffected. Meanwhile the stack
has no interim secondary management module as the switch
reboots.
4 When the rebooted switch comes back up, it assumes the secondary
management role within the stack.
Primary - Slot 2
Reloading the Primary Management Module In a Stack of Two
page 6-28
OmniSwitch 6250 Hardware Users Guide
June 2012
Managing OmniSwitch 6250 Stacks
Reloading Switches
Reloading the Secondary Management Module
If the switch with secondary management role is reloaded, the idle switch with the lowest slot number will
automatically assume the secondary role. The reloaded switch (the former secondary) will assume an idle
role when it comes back up.
Meanwhile, the switch with the primary management role, as well as any other idle modules in the stack,
continue operations without interruption.
To reload the secondary management module, use the reload command. Be sure to include the syntax
secondary in the command line. For example:
-> reload secondary
Note. A secondary management module reload can also be scheduled for a later time or date. For information on scheduling a secondary module reload, as well as additional command details, refer to the
OmniSwitch CLI Reference Guide.
Primary - Slot 1
1 In this stack of four OmniSwitch 6250 switches, the slot 1 switch
Secondary - Slot 2
is the primary management module. The slot 2 switch is the secondary. Slots 3 and 4 are operating in idle roles.
Idle - Slot 3
Idle - Slot 4
-> reload secondary
2 The user reloads the stack’s secondary management module by
issuing the reload secondary command. Any data flow on the
secondary switch’s Ethernet is interrupted.
Primary - Slot 1
Booting...
3 The idle switch with the lowest slot number—in this case,
slot 3—automatically becomes the secondary management
module. The slot 4 switch remains unaffected. In addition,
Ethernet traffic on slots 1, 3, and 4 remains unaffected.
Secondary - Slot 3
Idle - Slot 4
Primary - Slot 1
Idle - Slot 2
4 When the rebooted switch comes back up, it assumes an idle role
within the stack.
Secondary - Slot 3
Idle - Slot 4
Reloading the Secondary Management Module In a Stack of Three or More
OmniSwitch 6250 Hardware Users Guide
June 2012
page 6-29
Reloading Switches
Managing OmniSwitch 6250 Stacks
If there are only two switches in the stack, the switch that was reloaded (the former secondary) resumes
the secondary role when it comes back up.
Primary - Slot 1
Secondary - Slot 2
1 In this stack of two OmniSwitch 6250 switches, the slot 1 switch
is the primary management module. The slot 2 switch is the secondary.
2 The user reloads the stack’s secondary management module by
-> reload secondary
issuing the reload secondary command. Any data flow on the
secondary switch’s Ethernet is interrupted.
3 As the secondary switch reboots, the primary management modPrimary - Slot 1
Booting...
Primary - Slot 1
ule continues to operate without interruption. Meanwhile the
stack has no interim secondary management module as the switch
reboots.
4 When the rebooted switch comes back up, it assumes the secondary
management role within the stack.
Secondary - Slot 2
Reloading the Secondary Management Module In a Stack of Two
page 6-30
OmniSwitch 6250 Hardware Users Guide
June 2012
Managing OmniSwitch 6250 Stacks
Reloading Switches
Reloading Switches with Idle Roles
Similar to reloading Network Interface (NI) modules on chassis-based switches, modules operating in idle
status within a stack can be reloaded via the CLI.
Note. Any traffic being passed on the module’s Ethernet will be interrupted during the reboot. Other
modules within the stack will continue to operate without interruption.
To reset a single module operating in idle mode, use the reload ni command. Be sure to include the slot
number of the idle switch in the command line. For example:
-> reload ni 3
Only one idle switch can be reloaded at a time. In order to reload multiple idle switches at once, the entire
stack must be reloaded using the reload all command.
After reloading a switch operating in an idle role, the switch resumes idle status when it comes back up,
despite its saved slot number. In other words, if an idle switch with a saved slot number of 1 is reloaded, it
resumes its previous idle role. Although it has the lowest possible saved slot number, it does not take over
the primary management role. In order for this switch to take over the primary role, all switches in the
stack must be reloaded.
Note. For more information on reloading all the switches in a stack, refer to page 6-32. For more information on idle status, refer to page 6-12.
Reloading Switches in Pass-Through Mode
Pass-through mode is a state in which a switch has attempted to join a stack but has been denied primary,
secondary, and idle status. Because this is essentially an error state, the pass-through condition must be
resolved and any modules operating in pass-through mode must be reloaded.
To reload a module operating in pass-through mode, use the reload pass-through command. Be sure to
include the slot number of the pass-through switch in the command line. For example:
-> reload pass-through 1001
Note. Before issuing the reload pass-through command, be sure to resolve any conditions causing the
switch to operate in pass-through mode. Otherwise, the switch is likely to come up again in pass-through
mode. For detailed information, including steps used to recover from pass-through, refer to page 6-13.
OmniSwitch 6250 Hardware Users Guide
June 2012
page 6-31
Reloading Switches
Managing OmniSwitch 6250 Stacks
Reloading All Switches in a Stack
Reloading all switches in the stack is essentially a full reboot of the virtual chassis. This can be useful in
restoring a stack’s previously configured topology—i.e., the stack’s saved slot numbers and management
roles. Note, however, that all data flow on the stack is interrupted whenever a full reboot is issued.
To reset all switches in a stack use the reload all command. For example:
-> reload all
Important. Before issuing the reload all command, be sure to read the sections below. Understanding
topics such as software synchronization and the effects of saved slot information can help users avoid
unexpected results following a full stack reboot.
Software Synchronization During a Full Reload
If the checksum value on the stack’s non-primary switches differs in any way from the checksum value on
the primary switch, the primary switch automatically distributes its system and configuration software to
all other switches in the stack whenever a full reload is executed.
During this automatic software synchronization, system and configuration software on the secondary and
idle switches is overwritten. Because the primary switch’s “last known good” software is propagated to all
switches, the synchronization process helps ensure effective redundancy across the stack.
Effects of Saved Slot Number Information on the Reload Process
Depending on the status of saved slot information across the stack, there are different slot numbering and
management role scenarios that can occur following a full reboot. For this reason, checking the current
stack topology before issuing a full reboot is strongly recommended. To check the current stack topology,
use the show stack topology command. Refer to the OmniSwitch CLI Reference Guide for detailed
command information.
Possible saved slot number conditions include:
• All switches have unique saved slot information
• No switches in the stack have saved slot information
• Some switches have saved slot information, others do not
• Two or more switches have duplicate slot information
All Switches Have Unique Saved Slot Information
If a full reload is issued and all switches have unique slot numbers saved to their boot.slot.cfg files, the
slot numbers will be assigned according to the saved slot information. The primary management role will
be given to the switch with the lowest saved slot number. The secondary management role will be given to
the switch with the second-lowest saved slot number. All other switches will be assigned to idle roles.
An illustrated example of this method for assigning slot numbers and management roles is provided on
pages 6-23 and 6-24.
page 6-32
OmniSwitch 6250 Hardware Users Guide
June 2012
Managing OmniSwitch 6250 Stacks
Reloading Switches
No Switches In the Stack Have Saved Slot Information
If a full reload is issued and no switches in the stack have unique slot numbers, slot numbers will be
assigned beginning with the switch with the lowest MAC address. (This can occur if the boot.slot.cfg file
has been deleted from each switch’s /flash directory—e.g., by issuing the stack clear slot command for all
modules in the stack.)
The switch with the lowest MAC address is assigned slot number 1 and given the primary management
role. The switch connected to stacking port A of the primary switch is automatically assigned slot
number 2 and given the secondary management role. Stack cabling is then used to determine the dynamic
slot numbering of the remaining modules in the stack. The switch immediately adjacent to slot 2 is
assigned slot number 3 and given an idle role, etc.
An illustrated example of this method for assigning slot numbers and management roles is provided on
pages 6-21 and 6-22.
Some Switches Have Saved Slot Information, Others Do Not
If only some switches in the stack have boot.slot.cfg files in their /flash directories, the system software
will first read the contents of these files and then dynamically assigns unique slot numbers to any switches
that do not have saved slot information. The primary management role will be given to the switch with the
lowest saved slot number. The secondary management role will be given to the switch with the secondlowest saved slot number. All other switches will be assigned to idle roles.
When unique slot numbers are dynamically assigned by the system software, a boot.slot.cfg file is automatically generated with the new slot information. Because all switches now have unique saved slot information, any subsequent reload all commands issued will cause the stack to come up as described in the
section, “All Switches Have Unique Saved Slot Information” on page 6-32.
Two or More Switches Have Duplicate Slot Information
If a full stack reboot is issued and the same slot number is found in the boot.slot.cfg file of two or more
switches, the switch with the lowest MAC address is allowed to come up and operate normally. Meanwhile, any other switches with the duplicate slot number come up in pass-through mode.
The pass-through mode is essentially an error state in which a switch has been denied primary, secondary,
and idle roles within the stack. When a switch is in pass-through mode, its Ethernet are brought down and
cannot pass traffic. It is for this reason that users should always check the current saved slot number for
each switch before issuing the reload all command. To check the current saved slot information across the
stack, use the show stack topology command. For detailed information on pass-through mode, refer to
“Pass-Through Mode” on page 6-13.
OmniSwitch 6250 Hardware Users Guide
June 2012
page 6-33
Reloading Switches
Managing OmniSwitch 6250 Stacks
Avoiding Split Stacks
The term “splitting” a stack refers to the creation of isolated modules within the virtual chassis. A split
stack can result from the following conditions:
• Two or more non-adjacent switches are reloaded simultaneously
• The stack is reloaded without a redundant stacking cable connection
The sections below offer simple guidelines for avoiding splitting the stack during the reload process.
Do Not Reload Non-Adjacent Switches Simultaneously
If non-adjacent switches in the stack—for example, the top switch in the stack and the third-from-top
switch in the stack—are reloaded simultaneously, a problem will occur. The switch between the two nonadjacent switches will become isolated and the virtual chassis will be effectively split.
To avoid splitting the stack, do not reload the two non-adjacent switches simultaneously. Instead, simply
reload the top switch first, then reload the third-from-top switch, or vice-versa.
Be Sure a Redundant Stacking Cable is Installed at All Times
Another important guideline for avoiding split stacks involves the redundant stacking cable. In order to
avoid isolated modules within the virtual chassis, simply make sure that a redundant stacking cable
connection exists between the top-most and bottom-most switches at all times.
For more information on the redundant stacking cable connection, refer to page 6-18.
page 6-34
OmniSwitch 6250 Hardware Users Guide
June 2012
Managing OmniSwitch 6250 Stacks
Changing the Secondary Module to Primary
Changing the Secondary Module to Primary
OmniSwitch 6250 stacks allow users to manually force the secondary switch to assume the primary
management role. This is referred to as “takeover.” The behavior of a takeover is similar to that of reloading the primary management module (see page 6-27).
Whenever a takeover is initiated, the switch with the secondary role automatically takes over primary
management functions. The primary switch is automatically reloaded and any traffic being passed on the
primary switch’s Ethernet is interrupted.
Meanwhile, the idle switch with the next-lowest slot number automatically assumes the secondary role.
When the former primary module comes back up, it assumes an idle role within the stack.
To initiate a takeover sequence, use the takeover command. For example:
-> takeover
Note. Before using the takeover command, verify that the switches in the stack are synchronized.
Otherwise, data flow and switch management functions may be interrupted due to incorrect or outdated
software when a switch takes over the primary management role. For more information, refer to “Synchronizing Switches in a Stack” on page 6-37.
Primary - Slot 1
1 In this stack of four OmniSwitch 6250 switches, the slot 1 switch
Secondary - Slot 2
is the primary management module. The slot 2 switch is the secondary. Slots 3 and 4 are operating in idle roles.
Idle - Slot 3
Idle - Slot 4
2 A takeover is initiated by the user; the primary management module
-> takeover
is automatically reloaded. Any data flow on the primary switch’s
Ethernet is interrupted.
Booting...
3 The secondary switch takes over the primary role. The idle switch
Primary - Slot 2
with the next-lowest slot number—in this case, slot 3—automatically
becomes the secondary management module. The slot 4 switch
remains unaffected. In addition, Ethernet traffic on slots 2, 3, and 4
remains unaffected.
Secondary - Slot 3
Idle - Slot 4
Idle - Slot 1
4 When the former primary switch comes back up, it assumes an idle
Primary - Slot 2
role within the stack.
Secondary - Slot 3
Idle - Slot 4
Takeover Behavior In a Stack of Three or More
OmniSwitch 6250 Hardware Users Guide
June 2012
page 6-35
Changing the Secondary Module to Primary
Managing OmniSwitch 6250 Stacks
If there are only two switches in the stack, the former primary switch resumes the secondary role when it
comes back up following the takeover.
Primary - Slot 1
Secondary - Slot 2
1 In this stack of two OmniSwitch 6250 switches, the slot 1 switch
is the primary management module. The slot 2 switch is the secondary.
2 A takeover is initiated by the user; the primary management
-> takeover
module is automatically reloaded. Any data flow on the primary
switch’s Ethernet is interrupted.
3 The secondary switch takes over the primary role. Ethernet traffic
Booting...
on slot 2 remains unaffected. Meanwhile the stack has no interim
secondary management module as the switch reboots.
Primary - Slot 2
Secondary - Slot 1
4 When the former primary switch comes back up, it assumes the
secondary management role within the stack.
Primary - Slot 2
Takeover Behavior In a Stack of Two
page 6-36
OmniSwitch 6250 Hardware Users Guide
June 2012
Managing OmniSwitch 6250 Stacks
Synchronizing Switches in a Stack
Synchronizing Switches in a Stack
Management module synchronization refers to the process of copying all files in the /flash/working and
/flash/certified directories of the primary management module to the /flash/working and /flash/certified
directories of all the other switches in the stack. The system and configuration software on the nonprimary switches—i.e., the secondary management module and any modules operating in idle—is overwritten.
The synchronization process ensures that the contents of these directories match exactly for all switches
across the stack. This can be especially useful after new software has been loaded to the primary management module. Further, synchronization prevents any switch from assuming a management role within the
stack with incorrect or outdated software or configuration files. Because the primary switch’s “last known
good” software is propagated to all switches, the synchronization process helps ensure effective redundancy across the stack.
In order to maintain effective management module redundancy, switches in the stack must be synchronized at all times. To determine whether a stack is in need of synchronization, use the show runningdirectory command. For example:
-> show running-configuration
CONFIGURATION STATUS
Running CMM
:
CMM Mode
:
Current CMM Slot
:
Running configuration
:
Certify/Restore Status
:
SYNCHRONIZATION STATUS
Flash Between CMMs
:
Running Configuration
:
Stacks Reload on Takeover:
PRIMARY,
DUAL CMMs,
1,
WORKING,
CERTIFY NEEDED
NOT SYNCHRONIZED,
NOT AVAILABLE,
PRIMARY ONLY
This example shows a switch on which the /flash directories between the management modules are not
synchronized. To manually synchronize all switches in the stack, enter the following command:
-> copy working certified flash-syncro
When the synchronization process is initiated, modules within the stack continue to operate without interruption and data flow across the stack is unaffected.
Automatic Synchronization During a Full Reload
If the checksum value on the stack’s non-primary switches differs in any way from the checksum value on
the primary switch, the primary switch automatically distributes its system and configuration software to
all other switches in the stack whenever a full reload is executed.
For more information on initiating a full reload, see “Reloading All Switches in a Stack” on page 6-32.
Note. For more information on management module synchronization and managing the /flash/working
and /flash/certified directories, refer to the “Managing CMM Directory Content” chapter in the Switch
Management Guide.
OmniSwitch 6250 Hardware Users Guide
June 2012
page 6-37
Monitoring the Stack
Managing OmniSwitch 6250 Stacks
Monitoring the Stack
As shown in the previous sections, monitoring the current status and operation of all elements in a stack
can help users avoid unexpected stack conditions. The table below includes CLI commands that are useful
in monitoring stack conditions.
CLI Commands Used for Monitoring a Stack
show stack topology
Displays the current operating topology of switches within a stack.
show stack status
Displays the current redundant stacking cable status.
show running-directory
Displays the directory from where the switch was booted. This command also shows important information, including whether the software across the stack is synchronized.
show chassis
Displays basic configuration and status information for the switch
chassis.
show cmm
Displays basic hardware and status information for primary and
secondary management modules operating in the stack.
show ni
Displays basic hardware and status information for modules currently
operating in the stack.
show module
Displays basic information for modules installed in the stack. Modules
include primary and secondary management modules and any modules
operating in idle status.
show module long
Displays detailed information for modules installed in the stack. Modules include primary and secondary management modules and any
modules operating in idle status.
show module status
Displays basic status information for modules installed in the stack.
Modules include primary and secondary management modules and any
modules operating in idle status.
show power
Displays hardware information and current status for chassis power
supplies. This includes the status of backup power supplies, if applicable.
show fan
Displays the current operating status of each of the six fans operating in
each chassis.
show temperature
Displays the current operating chassis ambient temperature, as well as
current temperature threshold settings for each of the modules in the
stack.
Visually Monitoring the Stack
Users can also monitor many stack operations by viewing the front panel LEDs on all elements in the
stack. Refer to “LED Status” on page 2-20 for detailed information on LEDs and stack status.
page 6-38
OmniSwitch 6250 Hardware Users Guide
June 2012
Managing OmniSwitch 6250 Stacks
Monitoring the Stack
CLI Commands Supported on Both Primary and Secondary
Management Modules
Although most CLI commands are executed when logged into the switch with the primary management
role, there is a group of commands that is supported when logged in to either the primary or secondary
management module. For a list of these commands, refer to the tables below.
Note. For detailed information on these commands, including command syntax options and definitions,
refer to the OmniSwitch CLI Reference Guide.
CMM Commands
reload
takeover
install
debug chassis auto-reboot
show running-directory
show reload
show microcode
Chassis Management and Monitoring Commands
show system
show hardware info
show chassis
show module
show module long
show module status
show cmm
show ni
delete
cp
mv
move
chmod
attrib
fsck
newfs
ed
vi
view
tty
show tty
rz
more
install
File Management Commands
cd
pwd
mkdir
rmdir
ls
dir
rename
rm
Switch Logging and Monitoring Commands
swlog
swlog appid level
swlog output
show log swlog
show swlog
debug ktrace
debug ktrace appid level
debug ktrace show
debug systrace
debug systrace appid level
debug systrace show
debug systrace show log
debug memory monitor
debug memory monitor show log
Memory Monitoring Commands
show log pmd
OmniSwitch 6250 Hardware Users Guide
June 2012
page 6-39
Monitoring the Stack
page 6-40
Managing OmniSwitch 6250 Stacks
OmniSwitch 6250 Hardware Users Guide
June 2012
A Regulatory Compliance
and Safety Information
This appendix provides information on regulatory agency compliance and safety for the OmniSwitch 6250
switches.
Declaration of Conformity: CE Mark
This equipment is in compliance with the essential requirements and other provisions of
Directive 2004/108/EC (EMC), 2006/95/EC (LVD), 91/263/EEC (Telecom Terminal Equipment,
if applicable), 1999/5/EC (R&TTE, if applicable).
Français: Cet équipement est conforme aux exigences essentielles et aux autres provisions de la Directive
2004/108/EC (EMC), 2006/95/CE (LVD), 91/263/CEE (équipements terminaux de télécommunications, le
cas échéant), 1999/5/EC (R&TTE, le cas échéant).
Deutsch: Diese Ausrüstung erfüllt die wesentlichen Anforderungen und sonstigen Bestimmungen der
Richtlinien 2004/108/EG (EMV-Richtlinie), 2006/95/EG (Niederspannungsrichtlinie), 91/263/EWG
(Telekommunikationsendeinrichtungen, falls zutreffend), 1999/5/EG (Funkanlagen und Telekommunikationsendeinrichtungen, falls zutreffend).
Español: Este equipo cumple los requisitos esenciales y otras disposiciones de las directivas 2004/108/CE
(EMC), 2006/95/CE (LVD), 91/263/CEE (equipos terminales de telecomunicación, si procede), 1999/5/
CE (R&TTE, si procede).
OmniSwitch 6250 Hardware Users Guide
June 2012
page A-1
China RoHS: Hazardous Substance Table
Regulatory Compliance and Safety Information
China RoHS: Hazardous Substance Table
产品说明书附件
SUPPLEMENT TO PRODUCT INSTRUCTIONS
这个文件涉及的是在中华人民共和国境内进口或销售的电子信息产品
Include this document with all Electronic Information Products imported
or sold in the People’s Republic of China
部件名称
(Parts)
电路模块
(Circuit Modules)
电缆及电缆组件
(Cables & Cable Assemblies)
金属部件
(Metal Parts)
塑料和聚合物部件
(Plastic and Polymeric parts)
铅
( Pb)
有毒有害物质或元素 (Hazardous Substance)
汞
镉
六价铬
多溴联苯
6+
( Hg)
( Cd)
( Cr )
( PBB)
多溴二苯醚
( PBDE)
×
○
○
○
○
○
×
○
○
○
○
○
×
○
○
○
○
○
○
○
○
○
○
○
○
○
对于交付时集成了电池的电子信息产品
For electronic information products delivered with integrated functional batteries:
电池
(Batteries)
○ ：
○
○
○
○
表示该有毒有害物质在该部件所有均质材料中的含量均在 SJ/ T11363- 2006 标准规定的限量要求以下。
Indicates that the concentration of the hazardous substance in all homogeneous materials in the parts is
below the relevant threshold of the SJ/T11363-2006 standard.
× ：
表示该有毒有害物质至少在该部件的某一均质材料中的含量超出SJ/ T11363- 2006标准规定的限量要求。
Indicates that the concentration of the hazardous substance of at least one of all homogeneous materials
in the parts is above the relevant threshold of the SJ/T11363-2006 standard.
对销售之日的所售产品, 本表显示, 阿尔卡特朗讯公司供应链的电子信息产品可能包含这些物质。注意: 在所售产
品中可能会也可能不会含有所有所列的部件。
This table shows where these substances may be found in the supply chain of Alcatel-Lucent electronic
information products, as of the date of sale of the enclosed product. Note that some of the component
types listed above may or may not be a part of the enclosed product.
除非另外特别的标注, 此标志为针对所涉及产品的环保使用期标志. 某些零部件会有
一个不同的环保使用期( 例如, 电池单元模块) 贴在其产品上.
此环保使用期限只适用于产品是在产品手册中所规定的条件下工作.
The Environment- Friendly Use Period (EFUP) for all enclosed products and their parts are
per the symbol shown here, unless otherwise marked. Certain parts may have a different
EFUP (for example, battery modules) and so are marked to reflect such. The EnvironmentFriendly Use Period is valid only when the product is operated under the conditions defined
in the product manual.
page A-2
OmniSwitch 6250 Hardware Users Guide
50
June 2012
Regulatory Compliance and Safety Information
China RoHS: Hazardous Substance Table
Products are packaged using one or more of the following packaging materials:
CB
Corrugated Cardboard
OmniSwitch 6250 Hardware Users Guide
FB
Corrugated Fiberboard
June 2012
Low-Density Polyethylene
page A-3
Waste Electrical and Electronic Equipment (WEEE) Statement
Regulatory Compliance and Safety Information
Waste Electrical and Electronic Equipment (WEEE)
Statement
The product at end of life is subject to separate collection and treatment in the EU Member States, Norway
and Switzerland and therefore marked with the symbol:
Treatment applied at end of life of the product in these countries shall comply with the applicable national
laws implementing directive 2002/96EC on waste electrical and electronic equipment (WEEE).
page A-4
OmniSwitch 6250 Hardware Users Guide
June 2012
Regulatory Compliance and Safety Information
Standards Compliance
Standards Compliance
Safety Agency Certifications
• UL 60950-1, 2nd Edition
• CAN/CSA-C22.2 No. 60950-1-07, 2nd Edition
• EN 60950-1 with Amendment II
• IEC 60950-1 2nd Edition
• AS/NZS TS-001 and 60950: Australia
• UL-AR, Argentina
• TUV,UL-GS Mark, Germany
• NOM-019 SCFI, Mexico
• EN 60825-1 Laser
• EN 60825-2 Laser
• CDRH Laser
• CB Certification per IEC 60950-1, Second Edition
EMI/EMC Standards
• FCC Part 15 (CFR 47) Class A
• ICES-003 Class A
• EN 55022: Class A
• CISPR 22 Class A
• AS/NZS 3548 Class A
• VCCI Class A; A1 and A2
• EN 55024 (Immunity)
• EN 61000-3-2
• EN 61000-3-3
• EN 61000-4-2
• EN 61000-4-3
• EN 61000-4-4
• EN 61000-4-5
• EN 61000-4-6
• EN 61000-4-8
• EN 61000-4-11
• EN 61000-6-2
• EN 61000-6-4
OmniSwitch 6250 Hardware Users Guide
June 2012
page A-5
Standards Compliance
Regulatory Compliance and Safety Information
FCC Class A, Part 15
This equipment has been tested and found to comply with the limits for Class A digital device pursuant to
Part 15 of the FCC Rules.These limits are designed to provide reasonable protection against harmful interference when the equipment is operated in a commercial environment.This equipment generates, uses, and
can radiate radio frequency energy and, if not installed and used in accordance with the instructions in this
guide, may cause interference to radio communications. Operation of this equipment in a residential area is
likely to cause interference, in which case the user will be required to correct the interference at his own
expense.
The user is cautioned that changes and modifications made to the equipment without approval of the
manufacturer could void the user’s authority to operate this equipment.It is suggested that the user use
only shielded and grounded cables to ensure compliance with FCC Rules.
If this equipment does cause interference to radio or television reception, the user is encouraged to try to
correct the interference by one or more of the following measures:
• Reorient the receiving antenna.
• Relocate the equipment with respect to the receiver.
• Move the equipment away from the receiver.
• Plug the equipment into a different outlet so that equipment and receiver are on different branch
circuits.
If necessary, the user should consult the dealer or an experienced radio/television technician for additional
suggestions.
Canada Class A Statement
This equipment does not exceed Class A limits per radio noise emissions for digital apparatus, set out in
the Radio Interference Regulation of the Canadian Department of Communications.
Avis de conformitè aux normes du ministère des Communications du Canada
Cet èquipement ne dèpasse pas les limites de Classe A d íèmission de bruits radioèlectriques pour les
appareils numèriques,telles que prescrites par le RÈglement sur le brouillage radioèlectrique ètabli par le
ministère des Communications du Canada.
JATE
This equipment meets the requirements of the Japan Approvals Institute of Telecommunications Equipment (JATE).
CISPR22 Class A warning
This is a Class A product. In a domestic environment, this product may cause radio interference. Under
such circumstances, the user may be requested to take appropriate countermeasures.
page A-6
OmniSwitch 6250 Hardware Users Guide
June 2012
Regulatory Compliance and Safety Information
Standards Compliance
VCCI
This is a Class A product based on the standard of the Voluntary Control Council for Interference by
Information Technology Equipment (VCCI). If this equipment is used in a domestic environment, radio
disturbance may arise. When such trouble occurs, the user may be required to take corrective actions.
Class A Warning for Taiwan and Other Chinese Markets
This is a Class A Information Product. When used in a residential environment, it may cause radio
frequency interference. Under such circumstances, the user may be requested to take appropriate countermeasure.
OmniSwitch 6250 Hardware Users Guide
June 2012
page A-7
Translated Safety Warnings
Regulatory Compliance and Safety Information
Translated Safety Warnings
Chassis Lifting Warning
Two people are required when lifting the chassis. Due to its weight, lifting the chassis unassisted can cause
personal injury. Also be sure to bend your knees and keep your back straight when assisting with the lifting of the chassis.
Français: Le châssis doit être soulevé par deux personnes au minimum. Pour éviter tout risque d'accident,
maintenez le dos droit et poussez sur vos jambes. Ne soulevez pas l'unité avec votre dos.
Deutsch: Sicherheitshinweise
Hinweise zur Anhebung des Chassis
Zum Anheben des Chassis werden zwei Personen benötigt. Aufgrund des Gewichts kann das Anheben
ohne Unterstützung zu Personenschäden führen. Heben Sie das Chassis aus den Knien und halten Sie den
Rücken gerade wenn Sie beim Anheben des Chassis assistieren.
Español: Se requieren dos personas para elevar el chasis. Para evitar lesiones, mantenga su espalda en
posición recta y levante con sus piernas, no con su espalda.
Electrical Storm Warning
To avoid a shock hazard, do not connect or disconnect any cables or perform installation, maintenance, or
reconfiguration of this product during an electrical storm.
Français: Ne pas travailler sur le système ni brancher ou débrancher les câbles pendant un orage.
Deutsch: Hinweise bei Unwetter
Um elektrische Schläge zu vermeiden dürfen während eines Gewitters and diesem Gerät keine Kabel
angeschlossen oder gelöst werden, sowie keinerlei Installationen, Wartungen oder Konfigurationen
vorgenommen werden.
Español: Para evitar peligro de descargas, no conecte o desconecte ningun cable, ni realice ninguna instalación, maintenimiento o reconfiguración de este producto durante una tormenta eléctrica.
page A-8
OmniSwitch 6250 Hardware Users Guide
June 2012
Regulatory Compliance and Safety Information
Translated Safety Warnings
Installation Warning
Only personnel knowledgeable in basic electrical and mechanical procedures should install or maintain
this equipment.
Français: Toute installation ou remplacement de l'appareil doit être réalisée par du personnel qualifié et
compétent.
Deutsch: Installationshinweise
Dieses Gerät soll nur von Personal installiert oder gewartet werden, welches in elektrischen und mechanischen Grundlagen ausgebildet ist.
Español: Estos equipos deben ser instalados y atendidos exclusivamente por personal adecuadamente
formado y capacitado en técnicas eléctricas y mecánicas.
Invisible Laser Radiation Warning
Lasers emit invisible radiation from the aperture opening when no fiber-optic cable is connected. When
removing cables do not stare into the open apertures. In addition, install protective aperture covers to fiber
with no cable connected.
Français: Des radiations invisibles à l'œil nu pouvant traverser l'ouverture du port lorsque aucun câble en
fibre optique n'y est connecté, il est recommandé de ne pas regarder fixement l'intérieur de ces ouvertures.
Installez les caches connecteurs prévus à cet effet.
Deutsch: Hinweise zur unsichtbaren Laserstrahlung
Die Laser strahlen an der Blendenöffnung unsichtbares Licht ab, wenn keine Glasfaserkabel angeschlossen sind. Blicken Sie nicht in die Öffnungen und installieren Sie unverzüglich die Abdeckungen über den
Glasfaseranschlüssen.
Español: Debido a que la apertura del puerto puede emitir radiación invisible cuando no hay un cable de
fibra conectado, procurar no mirar directamente a las aperturas para no exponerse a la radiación.
Power Disconnection Warning
Your switch is equipped with multiple power supplies. To reduce the risk of electrical shock, be sure to
disconnect all power connections before servicing or moving the unit.
Français: Il se peut que cette unité soit équipée de plusieurs raccordements d'alimentation. Pour
supprimer tout courant électrique de l'unité, tous les cordons d'alimentation doivent être débranchés.
Deutsch: Hinweise zur Spannungsfreischaltung
Ihr Gerät ist mit mehreren Netzteilen ausgerüstet. Um die Gefahr des elektrischen Schlages zu verringern,
stellen sie sicher, daß alle Netzverbindungen getrennt sind bevor das Gerät gewartet oder bewegt wird.
Español: Antes de empezar a trabajar con un sistema, asegurese que el interruptor está cerrado y el cable
eléctrico desconectado.
Proper Earthing Requirement Warning
To avoid shock hazard:
• The power cord must be connected to a properly wired and earth receptacle.
• Any equipment to which this product will attached must also be connected to properly wired recep-
tacles.
• Use 22AWG solid copper conductor for ground leads connecting the frame to ground and DC
return.
OmniSwitch 6250 Hardware Users Guide
June 2012
page A-9
Translated Safety Warnings
Regulatory Compliance and Safety Information
• Cleaning and dressing of grounding points during installation is strongly recommended. Also, do not
forget the antioxidant.
• To ground the equipment properly, connect a Panduit Corporation UL listed Lug, P/N: LCD8-10A-
L to the two threaded holes located on the rear using 8AWG copper conductors. Use Panduit Corporation, P/N: CT-940CH for crimping.
Français:
Pour éviter tout risque de choc électrique:
• Ne jamais rendre inopérant le conducteur de masse ni utiliser l'équipement sans un conducteur de
masse adéquatement installé.
• En cas de doute sur la mise à la masse appropriée disponible, s'adresser à l'organisme responsable de
la sécurité électrique ou à un électricien.
Deutsch: Hinweise zur geforderten Erdung des Gerätes
Aus Sicherheitsgründen:
• darf das Netzkabel nur an eine Schutzkontaktsteckdose angeschloossen werden.
• dürfen für den Anschluß anderer Geräte, welche mit diesem Gerät verbunden sind, auch nur Schutz-
kontaktsteckdosen verwendet werden.
Español:
Para evitar peligro de descargas:
• Para evitar peligro de descargas asegurese de que el cable de alimentación está conectado a una
toma de alimentación adecuadamente cableada y con toma de tierra.
• Cualquier otro equipo a cual se conecte este producto también debe estar conectado a tomas de
alimentación adecuadamente cableadas.
page A-10
OmniSwitch 6250 Hardware Users Guide
June 2012
Regulatory Compliance and Safety Information
Translated Safety Warnings
Read Important Safety Information Warning
This guide contains important safety information about which you should be aware when working with
hardware components in this system. You should read this guide before installing, using, or servicing this
equipment.
Français: Avant de brancher le système sur la source d'alimentation, consultez les directives d'installation
disponibles dans ceci guide.
Deutsch: Bitte lesen - Sicherheitshinweise
Dieses guide enthält wichtige Sicherheitsinformationen, über die sie sich beim Arbeiten mit den Hardwareeinheiten bewußt sein sollten. Sie sollten diese Hinweise lesen, bevor sie installieren, reparieren oder die
Anlage verwenden.
Español: Esto guide contiene información importante de seguridad sobre la cual usted debe estar enterado
al trabajar con los componentes de dotación física en este sistema. Usted debe leer esta guía antes de instalar, usar o mantener este equipo.
Restricted Access Location Warning
This equipment should be installed in a location that restricts access. A restricted access location is one
where access is secure and limited to service personnel who have a special key, or other means of security.
Français: Le matériel doit être installé dans un local avec accès limité ou seules les personnes habilitées
peuvent entrer.
Deutsch: Hinweis zu Umgebungen mit beschränktem Zutritt
Die Anlage sollte an einem Standort mit beschränktem Zutritt installiert sein. Ein Standort mit beschränktem Zutritt stellt sicher, daß dort nur Servicepersonal mit Hilfe eines Schlüssels oder eines anderen Sicherheitssystems Zugang hat.
Español: Este equipo se debe instalar en un sitio con acceso restrinjido. Un sitio con el acceso restrinjido
es uno seguro y con acceso limitado al personal de servicio que tiene una clave especial u otros medios de
seguridad.
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June 2012
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Translated Safety Warnings
Regulatory Compliance and Safety Information
Wrist Strap Warning
Because electrostatic discharge (ESD) can damage switch components, you must ground yourself properly before continuing with the hardware installation. For this purpose, Alcatel-Lucent provides a grounding wrist strap and a grounding lug located near the top-right of the chassis. For the grounding wrist strap
to be effective in eliminating ESD, the power supplies must be installed in the chassis and plugged into
grounded AC outlets.
Français: L'électricité statique (ESD) peut endommager les composants du commutateur. Pour cette
raison Alcatel-Lucent joint à l'envoi du châssis un bracelet antistatique à brancher sur la prise mise à la
terre située en bas à droite du commutateur. Vous devrez mettre ce bracelet avant toute intervention hardware.
Deutsch: Hinweise zur ESD (Elektrostatischen Aufladung)
Weil elektrostatische Aufladung (ESD) Teile der Anlage beschädigen könnten, müssen sie sich selbst
erden, bevor sie mit der Hardware Installation beginnen. Zu diesem Zweck stellt Alcatel-Lucent ein
Erdungsarmband und eine Erdungsöse an der oberen rechten Seite des Chassis zur Verfügung. Um eine
sichere Erdungsfunktion des Erdungsarmbandes sicherzustellen, müssen die Netzteile installiert und mit
dem Schutzleiter des Versorgungsstromkreises verbunden sein.
Español: La descarga electrostática (ESD) puede dañar componentes eletrónicos. Usted debe asegurarse
que está en contacto con tierra antes de hacer la instalación del equipo. Con este fin, Alcatel-Lucent
proporciona una pulsera de muñeca para conectar al chasis en la toma de tierra situada en la parte superior
derecha del chasis. Para que la correa de muñeca sea eficaz en la eliminación de ESD, las fuentes de
alimentación deben estar instaladas en el chasis y conectadas a enchufes CA con tierra adecuada.
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June 2012
Regulatory Compliance and Safety Information
Instrucciones de seguridad en español
Instrucciones de seguridad en español
Advertencia sobre el levantamiento del chasis
Se requieren dos personas para levantar el chasis. Debido a su peso, la elevación del chasis sin ayuda
puede causar daños corporales. También es seguro doblar sus rodillas y guardar su espalda derecho al
ayudar a levantar el chasis.
Advertencia de las tapaderas en blanco
Porque regulan la circulación de aire y ayudan a proteger componentes internos del chasis, las tapaderas
en blanco deben seguir instaladas en las ranuras vacías del módulo y la fuente de alimentación siempre.
Advertencia en caso de tormenta eléctrica
Para evitar peligro de descargas, no conecte o desconecte ningun cable, ni realice ninguna instalación,
maintenimiento o reconfiguratión de este producto durante una tormenta eléctrica.
Advertencia de instalación
Solamente el personal bien informado en procedimientos eléctricos y mecánicos básicos debe instalar o
mantener este equipo.
Advertencia de radiación láser invisible
Los lasers emiten radiación invisible de la apertura abierta cuando no se conecta ningún cable de fibra
óptica. Al quitar los cables no mire fijamente en las aberturas abiertas. Además, instale las cubiertas
protectoras de la abertura a las salidas de la fibra sin el cable conectado.
Advertencia de la batería de litio
Hay un peligro de la explosión si la batería del litio en su chasis se substituye incorrectamente. Substituya
la batería solamente por el mismo o el equivalente de tipo de batería recomendado por el fabricante.
Deseche las baterías usadas según las instrucciones del fabricante. Las instrucciones del fabricante son
como sigue: Devuelva el módulo con la batería del litio a Alcatel-Lucent. La batería del litio será substituida en la fábrica de Alcatel-Lucent.
Advertencia sobre la tensión de operación
Para reducir el riesgo del choque eléctrico, matenga sus manos y dedos fuera de la fuente de alimentación
y no toque la placa madre mientras que el interruptor está funcionando.
Advertencia sobre la desconexión de la fuente
Su interruptor esta equipado por fuentes de alimentación múltiples. Para reducir el riesgo de choque eléctrico, asegúrese desconectar todas las conexiones de alimentación antes de mantener o de mover la unidad.
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June 2012
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Instrucciones de seguridad en español
Regulatory Compliance and Safety Information
Advertencia sobre una apropiada conexión a tierra
Para evitar peligro de descargas:
• El cable de alimentación debe estar conectado a una toma de alimentación adecuadamente cableada
y con toma de tierra.
Cualquier equipo al cual se conecte este producto debe estar también conectado a tomas de alimentación
adecuadamente cableadas.
Leer “información importante de seguridad”
La Guía de “Comenzando a Usar” que acompaña este equipo contiene información importante de seguridad sobre la cual usted debe saber al trabajar con los componentes de dotación física en este sistema.
Usted debe leer esta guía antes de instalar, de usar, o de mantener este equipo.
Advertencia de acceso restringido
Este equipo se debe instalar en una ubicación que restrinja el acceso. Una ubicación con acceso restringido es una donde está seguro y limitado el acceso al personal de servicio que tiene un clave especial, u
otros medios de la seguridad.
Advertencia de pulsera antiestática
Debido a que la descarga electrostática (ESD) puede dañar componentes del interruptor, usted debe conectarse a tierra correctamente antes de continuar con la instalación del equipo. Para este propósito, AlcatelLucent proporciona una pulsera antiestática y un terminal que pone a tierra situados cerca de la parte superior derecha del chasis. Para que la pulsera antiestática sea eficaz en la eliminación de ESD, las fuentes de
alimentación se deben instalar en el chasis y enchufar en las salidas de CA con descarga a tierra.
Clase de seguridad
Cumple con 21CFR 1040.10 y 1040.11 ó sus equivalentes.
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