Brocade Communications Systems 4100 Technical data

SilkWorm 4100
Hardware Reference Manual
Supporting Fabric OS v4.4.0
Supporting SilkWorm 4100
Publication Number: Publication Number: 53-0000563-02
Publication Date: 03/03/08
Copyright © 2008 Brocade Communications Systems, Inc. All Rights Reserved.
Brocade, Fabric OS, File Lifecycle Manager, MyView, and StorageX are registered trademarks and the Brocade B-wing symbol,
DCX, and SAN Health are trademarks of Brocade Communications Systems, Inc., in the United States and/or in other countries.
All other brands, products, or service names are or may be trademarks or service marks of, and are used to identify, products or
services of their respective owners.
Notice: This document is for informational purposes only and does not set forth any warranty, expressed or implied, concerning
any equipment, equipment feature, or service offered or to be offered by Brocade. Brocade reserves the right to make changes to
this document at any time, without notice, and assumes no responsibility for its use. This informational document describes
features that may not be currently available. Contact a Brocade sales office for information on feature and product availability.
Export of technical data contained in this document may require an export license from the United States government.
The authors and Brocade Communications Systems, Inc. shall have no liability or responsibility to any person or entity with
respect to any loss, cost, liability, or damages arising from the information contained in this book or the computer programs that
accompany it.
The product described by this document may contain “open source” software covered by the GNU General Public License or other
open source license agreements. To find-out which open source software is included in Brocade products, view the licensing
terms applicable to the open source software, and obtain a copy of the programming source code, please visit
http://www.brocade.com/support/oscd.
Brocade Communications Systems, Incorporated
Corporate Headquarters
Brocade Communications Systems, Inc.
1745 Technology Drive
San Jose, CA 95110
Tel: 1-408-333-8000
Fax: 1-408-333-8101
Email: info@brocade.com
Asia-Pacific Headquarters
Brocade Communications Singapore Pte. Ltd.
9 Raffles Place
#59-02 Republic Plaza 1
Singapore 048619
Tel: +65-6538-4700
Fax: +65-6538-0302
Email: apac-info@brocade.com
European and Latin American Headquarters
Brocade Communications Switzerland Sàrl
Centre Swissair
Tour A - 2ème étage
29, Route de l'Aéroport
Case Postale 105
CH-1215 Genève 15
Switzerland
Tel: +41 22 799 56 40
Fax: +41 22 799 56 41
Email: emea-info@brocade.com
Document History
The following table lists all versions of the Brocade SilkWorm 4100 Hardware Reference Manual.
Document Title
Publication
Number
Summary of Changes
Publication
Date
SilkWorm 4100 Hardware Reference
Manual
53-0000563-01
None; this is a new document.
July 2004
SilkWorm 4100 Hardware Reference
Manual
53-0000563-02
Added Japanese power cord
statement and revised copyright.
March 2008
Contents
About This Document
Chapter 1
Chapter 2
How This Document Is Organized . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
vii
Supported Hardware and Software . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
viii
What’s New in This Document. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
viii
Document Conventions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
viii
Text Formatting. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
viii
Notes, Cautions, and Warnings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
ix
Additional Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
ix
Brocade Resources . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
ix
Other Industry Resources . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
x
Getting Technical Help . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
xi
Document Feedback . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
xii
Introducing the SilkWorm 4100
Overview of Brocade SilkWorm 4100 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1-1
Ports On Demand . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1-1
Port Side of the SilkWorm 4100 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1-2
Nonport Side of the SilkWorm 4100 . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1-4
Managing the SilkWorm 4100 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1-4
Supported Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1-6
Installing and Configuring the SilkWorm 4100
Installation and Safety Considerations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2-1
Items Included with the SilkWorm 4100 . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2-2
Setting Up the SilkWorm 4100 as a Standalone Unit . . . . . . . . . . . . . . . . . . .
2-3
Installing the SilkWorm 4100 in an EIA Cabinet . . . . . . . . . . . . . . . . . . . . . .
2-3
Brocade SilkWorm 4100 Hardware Reference Manual
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iii
Configuring the SilkWorm 4100. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2-3
Setting the Switch Date and Time . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2-8
Synchronizing Local Time with an External Source . . . . . . . . . . . . . . . .
2-8
Correcting the Time Zone of a Switch . . . . . . . . . . . . . . . . . . . . . . . . . . .
2-9
Recommendations for Cable Management. . . . . . . . . . . . . . . . . . . . . . . . . . . 2-10
Chapter 3
Operating the SilkWorm 4100
Powering the SilkWorm 4100 On and Off . . . . . . . . . . . . . . . . . . . . . . . . . . .
3-1
Interpreting LED Activity. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3-1
LEDs on the Port Side of the Switch . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3-2
LEDs on the Nonport Side of the Switch . . . . . . . . . . . . . . . . . . . . . . . . .
3-4
Interpreting POST Results . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3-6
Maintaining the SilkWorm 4100. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3-6
Appendix A Product Specifications
iv
Switch Components . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
A-1
Weight and Physical Dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
A-2
Facility Requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
A-2
Power Supply Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
A-3
Power Cords (Japan, Denan) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
A-3
Environmental Requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
A-4
General Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
A-5
Data Transmission Ranges . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
A-6
Memory Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
A-6
Fibre Channel Port Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
A-6
Serial Port Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
A-7
POST and Boot Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
A-8
POST. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
A-8
Boot. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
A-8
Brocade SilkWorm 4100 Hardware Reference Manual
Publication Number: 53-0000563-02
Regulatory Compliance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
A-9
FCC Warning (USA only) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
A-9
VCCI Statement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-10
CE Statement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-10
Canadian Requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-10
Laser Compliance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-11
RTC Battery . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-11
Electrical Safety . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-11
Regulatory Certifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-12
Glossary
Index
Brocade SilkWorm 4100 Hardware Reference Manual
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v
vi
Brocade SilkWorm 4100 Hardware Reference Manual
Publication Number: 53-0000563-02
About This Document
This document is written for network administrators to provide a complete set of Brocade SilkWorm
4100 switch installation procedures and an overview of the switch hardware. This document is specific
to the Brocade SilkWorm 4100 switch running Fabric OS 4.4.0.
“About This Document” contains the following sections:
•
•
•
•
•
•
•
“How This Document Is Organized,” next
“Supported Hardware and Software” on page viii
“What’s New in This Document” on page viii
“Document Conventions” on page viii
“Additional Information” on page ix
“Getting Technical Help” on page xi
“Document Feedback” on page xii
How This Document Is Organized
This document is organized to help you find the particular information that you want as quickly and
easily as possible. The document begins with an introduction to the SilkWorm 4100 switch and
gradually proceeds through installation and operation procedures.
The document contains the following components:
•
•
Chapter 1, “Introducing the SilkWorm 4100” provides a brief overview of the switch itself.
•
•
•
Chapter 3, “Operating the SilkWorm 4100” provides an overview of switch operation.
•
The index points you to the exact pages on which specific information is located.
Chapter 2, “Installing and Configuring the SilkWorm 4100” describes the installation procedures
for the switch.
Appendix A, “Product Specifications” provides all of the technical specifications for the switch.
The glossary defines both terms specific to Brocade technology and common industry terms with
uses specific to Brocade technology.
Brocade SilkWorm 4100 Hardware Reference Manual
Publication Number: 53-0000563-02
vii
Supported Hardware and Software
Although many different software and hardware configurations are tested and supported by Brocade
Communications Systems, Inc. for the SilkWorm 4100, documenting all possible configurations and
scenarios is beyond the scope of this document.
What’s New in This Document
This is a new document; there are no changes. For any last-minute changes or updates, refer to the
Fabric OS release notes.
Document Conventions
This section describes text formatting conventions and important notices formats.
Text Formatting
The following table describes the narrative-text formatting conventions that are used in this document.
Convention
Purpose
bold text
•
•
•
•
•
•
•
•
•
•
italic text
code text
viii
Identifies command names
Identifies GUI elements
Identifies keywords/operands
Identifies text to enter at the GUI or CLI
Provides emphasis
Identifies variables
Identifies paths and internet addresses
Identifies document titles and cross references
Identifies CLI output
Identifies syntax examples
Brocade SilkWorm 4100 Hardware Reference Manual
Publication Number: 53-0000563-02
Notes, Cautions, and Warnings
The following notices appear in this document.
Note
A note provides a tip, emphasizes important information, or provides a reference to related information.
Caution
A caution alerts you to potential damage to hardware, firmware, software, or data.
Warning
A warning alerts you to potential danger to personnel.
For definitions of SAN-specific terms, visit the Storage Networking Industry Association online
dictionary at http://www.snia.org/education/dictionary.
Additional Information
This section lists additional Brocade and industry-specific documentation that you might find helpful.
Brocade Resources
The following related documentation is provided on the Brocade Documentation CD-ROM and on the
Brocade Web site, through Brocade Connect.
Note
Go to http://www.brocade.com and click Brocade Connect to register at no cost for a user ID and
password.
SilkWorm 4100
•
•
•
•
•
•
Fixed Rack Mount Kit Installation Procedure
SilkWorm 4100 Fan Assembly Replacement Procedure
SilkWorm 4100 Power Supply Replacement Procedure
SilkWorm 4100 QuickStart Guide
SilkWorm Switch Safety Guide
Slide Rack Mount Kit Installation Procedure
Brocade SilkWorm 4100 Hardware Reference Manual
Publication Number: 53-0000563-02
ix
Fabric OS
•
•
•
•
Diagnostic and System Error Message Reference Manual
Fabric OS Command Reference Manual
Fabric OS Procedures Guide
MIB Reference Manual
Fabric OS Optional Features
•
•
•
•
•
Advanced Performance Monitoring User's Guide
Advanced Web Tools Administrator’s Guide
Fabric OS Features Guide
Secure Fabric OS QuickStart Guide
Secure Fabric OS User's Guide
For practical discussions about SAN design, implementation, and maintenance, you can obtain Building
SANs with Brocade Fabric Switches through:
http://www.amazon.com
For additional Brocade documentation, visit the Brocade SAN Info Center and click the Resource
Library location:
http://www.brocade.com
Release notes are available on the Brocade Connect Web site and are also bundled with the Fabric OS.
Other Industry Resources
For additional resource information, visit the Technical Committee T11 Web site. This Web site
provides interface standards for high-performance and mass storage applications for Fibre Channel,
storage management, as well as other applications:
http://www.t11.org
For information about the Fibre Channel industry, visit the Fibre Channel Industry Association Web
site:
http://www.fibrechannel.org
x
Brocade SilkWorm 4100 Hardware Reference Manual
Publication Number: 53-0000563-02
Getting Technical Help
Contact your switch support supplier for hardware, firmware, and software support, including product
repairs and part ordering. To expedite your call, have the following information available:
1.
General Information
•
•
•
•
•
•
•
2.
Technical Support contract number, if applicable
Switch model
Switch operating system version
Error numbers and messages received
supportShow command output
Detailed description of the problem and specific questions
Description of any troubleshooting steps already performed and results
Switch Serial Number
The switch serial number and corresponding bar code are provided on the serial number label, as
shown here:
:
*FT00X0054E9
FT00X0054E9
The serial number label is located as follows:
3.
•
•
•
•
SilkWorm 2000-series switches: Bottom of chassis.
•
SilkWorm 12000 and 24000 directors: Inside the front of the chassis, on the wall to the left of
the ports.
•
SilkWorm Fabric AP7420: On the bottom of the chassis and on the back of the chassis.
SilkWorm 3200, 3250, 3800, and 3850 switches: Back of chassis.
SilkWorm 3900 switch: Bottom of chassis.
SilkWorm 4100 switch: On the switch ID pull-out tab located on the port side of the switch and
on the inside of the chassis, near power supply # 1 (the power supply on the right when looking
at the nonport side of the switch).
World Wide Name (WWN)
•
SilkWorm 3250, 3850, 3900, and 4100 switches and SilkWorm 12000 and 24000 directors:
Provide the license ID. Use the licenseIdShow command to display the license ID.
•
SilkWorm Fabric AP7420: Provide the switch WWN. Use the switchShow command to
display the switch WWN.
•
All other SilkWorm switches: Provide the switch WWN. Use the wwn command to display the
switch WWN.
Brocade SilkWorm 4100 Hardware Reference Manual
Publication Number: 53-0000563-02
xi
Document Feedback
Because quality is our first concern at Brocade, we have made every effort to ensure the accuracy and
completeness of this document. However, if you find an error or an omission, or you think that a topic
needs further development, we want to hear from you. Forward your feedback to
documentation@brocade.com. Provide the title and version number and as much detail as possible
about your issue, including the topic heading and page number and your suggestions for improvement.
xii
Brocade SilkWorm 4100 Hardware Reference Manual
Publication Number: 53-0000563-02
Chapter
Introducing the SilkWorm 4100
1
This chapter provides the following information:
•
•
•
•
•
“Overview of Brocade SilkWorm 4100,” next
“Port Side of the SilkWorm 4100” on page 1-2
“Nonport Side of the SilkWorm 4100” on page 1-4
“Managing the SilkWorm 4100” on page 1-4
“Supported Features” on page 1-6
Overview of Brocade SilkWorm 4100
The SilkWorm 4100 is a 1U Fibre Channel switch with 32 fixed Fibre Channel SFP ports that supports
link speeds up to 1, 2, or 4 Gbit/sec. The SilkWorm 4100 has two field-replaceable power supplies and
three field-replaceable fan units. It includes the Brocade Fabric Operating System and is compatible
with the entire Brocade SilkWorm product family. It can operate in a fabric containing multiple switches
or independently.
The SilkWorm 4100 provides the following features:
•
•
•
•
32 fixed autosensing 1-, 2-, or 4-Gbit/sec Fibre Channel ports
redundant, hot-swappable fans and power supplies
universal AC power supply
19 inch wide (48.3 cm) rack mount, 1U (1.75 inches; 4.44 cm) height, 24 inches (61cm) deep
Ports On Demand
The SilkWorm 4100 has 32 ports. By default, ports 0-15 are enabled. To enable additional ports, you
must install Ports On Demand (POD) licenses. To enable ports 16 through 23, you must install the
POD1 license. To enable ports 24 through 31, you must install the POD2 license. Although you can
install the POD2 license without having the POD1 license installed, you cannot use ports 16 through 23
until the POD1 license is enabled. For detailed information on enabling additional ports using the Ports
on Demand license, refer to the Fabric OS Procedures Guide.
Brocade SilkWorm 4100 Hardware Reference Manual
Publication Number: 53-0000563-02
1-1
1
Overview of Brocade SilkWorm 4100
Port Side of the SilkWorm 4100
Figure 1-1 shows the port side of the SilkWorm 4100.
Figure 1-1
Port Side View of the SilkWorm 4100
SilkWorm 4100
scale: 1/8" = 1"
Switch ID
Pull-out Tab
Serial
Port
Ethernet
Port
FC
Ports (0-7)
0
4
1
5
2
6
FC
Ports (8-15)
3
7
8
12
9
13
10
14
11
15
Port Side View
1-2
FC
Ports (16-23)
16
20
17
21
18
22
19
23
FC
Ports (24-31)
24
28
25
29
26
30
27
31
scale: 5/16" = 1"
Brocade SilkWorm 4100 Hardware Reference Manual
Publication Number: 53-0000563-02
Overview of Brocade SilkWorm 4100
1
The Fibre Channel ports are numbered from left to right, in eight-port groups, and are also numbered on
the faceplate (see Figure 1-2).
Figure 1-2
Port Numbering in the SilkWorm 4100
Note
Blade port numbers (physical port numbers) do not correspond directly to user port numbers (which are
displayed in Figure 1-2).
Brocade ISL Trunking is an optionally licensed software that allows you to create trunking groups of
ISLs between adjacent switches. For more information about Brocade ISL Trunking, refer to the
Brocade Fabric OS Features Guide.
The port side of the SilkWorm 4100 also displays the system status LED, power status LED, port status
LEDs, and port speed LEDs (see Figure 3-1 on page 3-2).
Brocade SilkWorm 4100 Hardware Reference Manual
Publication Number: 53-0000563-02
1-3
1
Managing the SilkWorm 4100
Nonport Side of the SilkWorm 4100
Figure 1-3 shows the nonport side of the SilkWorm 4100, which contains the power supplies (including
the AC power receptacle and AC power switch) and fans.
Figure 1-3
Nonport side of the SilkWorm 4100
SilkWorm 4100
Scale: 1/8" = 1"
Power
Supply 2
Fan 3
Fan 2
Fan 1
Power
Supply 1
Nonport Side View
Managing the SilkWorm 4100
You can use the management functions built into the SilkWorm 4100 to monitor the fabric topology, port
status, physical status, and other information to help you analyze switch performance and to accelerate
system debugging.
Note
The SilkWorm 4100 automatically performs power-on self-test (POST) each time it is turned on. Any
errors are recorded in the error log. For more information about POST, see “POST and Boot
Specifications” on page A-8.
1-4
Brocade SilkWorm 4100 Hardware Reference Manual
Publication Number: 53-0000563-02
Managing the SilkWorm 4100
1
For information about upgrading the version of Fabric OS installed on your switch, refer to the Brocade
Fabric OS Procedures Guide.
You can manage the SilkWorm 4100 using any of the management options listed in Table 1-1.
Table 1-1
Management Options for the SilkWorm 4100
Management Tool
Out-of-band
Support
In-band Support
Command line interface
Ethernet or serial
connection
IP over Fibre
Channel
Ethernet or serial
connection
IP over Fibre
Channel
Ethernet or serial
connection
IP over Fibre
Channel
Ethernet or serial
connection
IP over Fibre
Channel
Ethernet or serial
connection
Native in-band
interface
(over HBA only)
Up to two admin sessions and four user sessions
simultaneously. For more information, refer to the Brocade
Fabric OS Procedures Guide and the Brocade Fabric OS
Command Reference Manual.
Brocade Fabric Manager
For information, refer to the Brocade Fabric Manager
User’s Guide.
Brocade Advanced Web Tools
For information, refer to the Brocade Advanced Web Tools
Administrator’s Guide.
Standard SNMP applications
For information, refer to the Brocade MIB Reference
Manual.
Management Server
For information, refer to the Brocade Fabric OS Procedures
Guide and the Brocade Fabric OS Command Reference
Manual.
Note
To achieve in-band support for IP over Fibre Channel, the software must be run on both the HBA and
the switch, and it must be supported by both the HBA and HBA driver.
Brocade SilkWorm 4100 Hardware Reference Manual
Publication Number: 53-0000563-02
1-5
1
Supported Features
Supported Features
The SilkWorm 4100 supports the following optional Brocade software, which you can activate by
purchasing a corresponding license key:
•
•
•
•
•
•
•
•
•
Brocade Advanced Performance Monitoring
Brocade Advanced Web Tools
Brocade Advanced Zoning
Brocade Extended Fabrics
Brocade Fabric Watch
Brocade ISL Trunking
Brocade Ports on Demand (1 and 2)
Brocade Remote Switch
Brocade Secure Fabric OS
For information on these features, refer to the Brocade Fabric OS Features Guide.
1-6
Brocade SilkWorm 4100 Hardware Reference Manual
Publication Number: 53-0000563-02
Chapter
Installing and Configuring the SilkWorm 4100
2
This chapter provides the following information:
•
•
•
•
•
•
“Installation and Safety Considerations,” next
“Items Included with the SilkWorm 4100” on page 2-2
“Setting Up the SilkWorm 4100 as a Standalone Unit” on page 2-3
“Installing the SilkWorm 4100 in an EIA Cabinet” on page 2-3
“Configuring the SilkWorm 4100” on page 2-3
“Recommendations for Cable Management” on page 2-10
Installation and Safety Considerations
You can install the SilkWorm 4100 in the following three ways:
•
As a standalone unit on a flat surface. For instructions and more information, refer to “Setting
Up the SilkWorm 4100 as a Standalone Unit” on page 2-3.
•
In an EIA cabinet using the Fixed Rack Mount Kit provided with the switch. For more
information, refer to “Installing the SilkWorm 4100 in an EIA Cabinet” on page 2-3. For
detailed instructions, refer to the Fixed Rack Mount Kit Installation Procedure.
•
In an EIA cabinet using the Slide Rack Mount Kit provided with the switch. For more
information, refer to “Installing the SilkWorm 4100 in an EIA Cabinet” on page 2-3. For
detailed instructions, refer to the Slide Rack Mount Kit Installation Procedure.
To install and operate the switch successfully, ensure that the following requirements are met:
•
•
The primary AC input is 100-240 VAC (switch autosenses input voltage), 47-63 Hz.
•
The supply circuit, line fusing, and wire size are adequate, as specified by the electrical rating
on the switch nameplate.
The primary outlet is correctly wired, protected by a circuit breaker, and grounded in
accordance with local electrical codes.
For power supply information, refer to Power Supply Specifications on page A-3.
To ensure adequate cooling, install the switch with the nonport side, which contains the air intake vents,
facing a cool-air aisle.
Verify that a minimum of 47 cubic feet/minute (79.8 cubic meters/hour) of air flow is available to the air
intake vents on the nonport side of the switch.
Verify that the ambient air temperature does not exceed 40° Celsius (104° Fahrenheit) and that the
ambient humidity remains between 20 percent and 85 percent while the switch is operating.
Brocade SilkWorm 4100 Hardware Reference Manual
Publication Number: 53-0000563-02
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2
Items Included with the SilkWorm 4100
If installing the switch in a cabinet:
•
•
The cabinet must be a standard EIA cabinet.
•
Ground all equipment in the cabinet through a reliable branch circuit connection and maintain
ground at all times. Do not rely on a secondary connection to a branch circuit, such as a power
strip.
•
Ensure that airflow and temperature requirements are met on an ongoing basis, particularly if
the switch is installed in a closed or multirack assembly.
•
Verify that the additional weight of the switch does not exceed the cabinet’s weight limits or
unbalance the cabinet in any way.
•
Secure the cabinet to ensure stability in case of unexpected movement.
Plan a cabinet space that is 1 rack unit high (1.75 inches; 4.44 cm), 19 inches (48.3 cm) wide,
and at least 24 inches (61cm) deep.
For additional installation, electrical, environmental, and other considerations, refer to the SilkWorm
Switch Safety Guide.
Items Included with the SilkWorm 4100
The following items are included with the standard shipment of the SilkWorm 4100:
•
•
•
The SilkWorm 4100 switch, containing three fan assemblies and two power supplies
The Fixed Rack Mount Kit, with installation instructions
One accessory kit, containing the following items:
-
The SilkWorm 4100 QuickStart Guide
The Brocade Documentation CD-ROM
32 SFP (small-form-factor pluggable) transceivers (optional)
Rubber mounting feet (to be used when setting up the SilkWorm 4100 as a standalone unit)
Two grounded 6-ft. (approximately 1.83 meters) power cords.
-
2-2
The power plug type is NEMA5-15
Power plug current/voltage rating: 15A/125V
Cordage type: SVT
Current rating/wire gauge: 10A/ 18AWG
Connector at system end of cordset: IEC 60320/ C13
One serial cable, 10-ft. (approximately 3 meters) long, which can be converted from a DB9 serial cable to an RJ-45-style serial cable by removing the adapter on the end of the cable
Brocade SilkWorm 4100 Hardware Reference Manual
Publication Number: 53-0000563-02
Setting Up the SilkWorm 4100 as a Standalone Unit
2
Setting Up the SilkWorm 4100 as a Standalone Unit
The SilkWorm 4100 can be configured as a standalone unit, which means that it resides outside of a rack.
To configure the SilkWorm 4100 as a standalone unit:
1.
Unpack the SilkWorm 4100 and verify that all ordered items are present.
2.
Clean the four corner depressions on the bottom of the switch and place a rubber foot in each one.
This helps prevent the switch from accidentally sliding off the supporting surface.
3.
Place the switch on a stable, flat surface.
Installing the SilkWorm 4100 in an EIA Cabinet
Refer to the Fixed Rack Mount Kit Installation Procedure that shipped with your unit for instructions on
installing the SilkWorm 4100 in a fixed rack.
Refer to the Slide Rack Mount Kit Installation Procedure (optional) for detailed instructions on installing
the SilkWorm 4100. The switch can be installed using the slide rack mount kit in two ways:
•
To allow the port side of the switch to slide out of the exhaust-air side of the cabinet. In this
installation, the port side of the switch is flush with the edge of the cabinet.
•
To allow the nonport side of the switch to slide out the cool-air side of the cabinet. In this
installation, the port side of the switch is set three inches back from the edge of the cabinet,
allowing a more gradual bend in the fiber-optic cables.
Configuring the SilkWorm 4100
The SilkWorm 4100 must be configured correctly before it can operate within a network and fabric. For
instructions on configuring the switch to operate in a fabric containing switches from other vendors,
refer to the Brocade Fabric OS Procedures Guide.
The following items are required for configuring and connecting the SilkWorm 4100 for use in a network
and fabric:
•
•
•
•
•
•
•
The SilkWorm 4100, installed and connected to a power source
A workstation computer that has a terminal emulator application (such as HyperTerminal for
Windows)
An unused IP address and corresponding subnet mask and gateway address
The serial cable provided with the switch
An Ethernet cable
SFP transceivers and compatible fibre cables, as required
Access to an FTP server, for backing up the switch configuration
To configure the SilkWorm 4100, you must perform the following tasks:
1.
“Providing Power to the Switch” on page 2-4
2.
“Creating a Serial Connection” on page 2-4
Brocade SilkWorm 4100 Hardware Reference Manual
Publication Number: 53-0000563-02
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2
Configuring the SilkWorm 4100
3.
“Connecting to the Switch Using the Serial Connection” on page 2-5
4.
“Setting the Switch IP Address” on page 2-5
5.
“Creating an Ethernet Connection” on page 2-6
6.
“Completing Switch Configuration” on page 2-6
Caution
Do not connect the switch to the network until the IP address is correctly set. For
instructions on how to set the IP address, see “Configuring the SilkWorm 4100” on
page 2-3.
Providing Power to the Switch
To provide electrical power to the SilkWorm 4100:
1.
Connect the power cords to both power supplies and then to power sources on separate circuits to
protect against AC failure. Ensure that the cords have a minimum service loop of 6 inches available
and are routed to avoid stress.
2.
Power on the power supplies by flipping both AC switches to “1”. The power supply LED lights up
green, and the switch begins running POST. The switch requires a minimum of three minutes to boot
and complete POST.
Note
Power is supplied to the switch as soon as the first power supply is connected and turned on.
3.
After POST is complete, verify that the switch power and status LEDs on the left of the port side of
the switch are green.
Creating a Serial Connection
To create a serial connection to the SilkWorm 4100:
1.
Remove the plug from the serial port and insert the serial cable provided with the SilkWorm 4100.
2.
Connect the serial cable to the serial port on the switch and to an RS-232 serial port on the
workstation. If the serial port on the workstation is RJ-45 instead of RS-232, you can remove the
adapter on the end of the serial cable and insert the exposed RJ-45 connector into the RJ-45 serial
port on the workstation.
3.
Disable any serial communication programs running on the workstation.
4.
Open a terminal emulator application (such as HyperTerminal for Windows or TERM in a UNIX
environment) and configure the application as follows:
•
2-4
In a Windows 95, 98, 2000, or NT environment:
Bits per second:
9600
Databits:
8
Parity:
None
Stop bits:
1
Brocade SilkWorm 4100 Hardware Reference Manual
Publication Number: 53-0000563-02
Configuring the SilkWorm 4100
Flow control:
•
2
None
In a UNIX environment, enter the following string at the prompt:
tip /dev/ttyyb -9600
Connecting to the Switch Using the Serial Connection
To log in to the switch through the serial connection:
1.
Verify that the switch has completed POST. When POST is complete, the port status and switch
power and status LEDs return to a standard healthy state; for information about LED signals, refer to
“Interpreting LED Activity” on page 3-1.
2.
When the terminal emulator application stops reporting information, press Enter to display the
login prompt.
Setting the Switch IP Address
To replace the default IP address and related information:
1.
Enter the ipAddrSet command at the terminal emulator application prompt, and enter the requested
information at the prompts:
switch:admin> ipaddrset
Ethernet IP Address [10.77.77.77]:10.32.53.47
Ethernet Subnetmask [255.0.0.0]:255.255.240.0
Fibre Channel IP Address [0.0.0.0]:
Fibre Channel Subnetmask [0.0.0.0]:
Gateway IP Address [0.0.0.0]:10.32.48.1
Set IP address now? [y = set now, n = next reboot]:y
IP address being changed...
Committing configuration...Done.
switch:admin>
2.
Optionally, verify that the address was correctly set by typing the ipAddrShow command at the
prompt.
3.
Record the IP address on the pull out tab (see Figure 1-1 on page 1-2) provided for this purpose on
the port side of the SilkWorm 4100.
4.
If the serial port is no longer required, log out of the serial console, remove the serial cable, and
replace the plug in the serial port.
Brocade SilkWorm 4100 Hardware Reference Manual
Publication Number: 53-0000563-02
2-5
2
Configuring the SilkWorm 4100
Creating an Ethernet Connection
To create an Ethernet connection to the SilkWorm 4100:
1.
Remove the plug from the Ethernet port.
2.
Connect an Ethernet cable to the switch Ethernet port and to the workstation or to an Ethernet
network containing the workstation.
Note
At this point, the switch can be accessed remotely, by command line or by Brocade
Advanced Web Tools. Ensure that the switch is not being modified from any other
connections during the remaining tasks.
Completing Switch Configuration
To complete the switch configuration:
1.
Log on to the switch by telnet, using the administrative account.
2.
Modify the domain ID if required.
The default domain ID is 1. If the switch is not powered on until after it is connected to the fabric
and the default domain ID is already in use, the domain ID for the new switch is automatically reset
to a unique value. If the switch is connected to the fabric after is has been powered on and the
default domain ID is already in use, the fabric segments. To find the domain IDs that are currently in
use, run the fabricShow command on another switch in the fabric.
a.
Disable the switch by typing the switchDisable command.
b.
Enter the configure command.
The command prompts display sequentially; enter a new value or press Enter to accept each
default value.
c.
Enter y after the “Fabric parameters” prompt:
Fabric parameters (yes, y, no, n): [no] y
d.
Enter a unique domain ID (such as the domain ID used by the previous switch, if still available):
Domain: (1..239) [1] 3
3.
4.
2-6
e.
Complete the remaining prompts or press Ctrl-D to accept the remaining settings without
completing all the prompts.
f.
Reenable the switch by entering the switchEnable command.
Optionally, specify any custom status policies:
a.
Enter the switchStatusPolicySet command at the prompt.
This command sets the policy parameters that determine overall switch status.
b.
Customize the status policies as desired.
To deactivate the alarm for a condition, type 0 at the prompt for that condition.
Install the SFP transceivers in the Fibre Channel ports, as required. The ports selected for use in
trunking groups must meet specific requirements. For a list of these requirements, refer to the
Brocade Fabric OS Features Guide.
Brocade SilkWorm 4100 Hardware Reference Manual
Publication Number: 53-0000563-02
Configuring the SilkWorm 4100
2
a.
Remove the plugs from the ports to be used.
b.
Position a transceiver so that it is oriented correctly and insert it into a port until it is firmly
seated and the latching mechanism clicks.
For instructions specific to the type of transceiver, refer to the transceiver manufacturer’s
documentation.
Note
The transceivers are keyed to ensure correct orientation. If a transceiver does not install
easily, ensure that it is correctly oriented.
c.
5.
Repeat Steps a and b for the remaining ports, as required.
Connect the cables to the transceivers.
The cables used in trunking groups must meet specific requirements. For a list of these
requirements, refer to the Brocade Fabric OS Features Guide.
Caution
A 50-micron cable should not be bent to a radius less than 2 inches under full tensile load
and 1.2 inches with no tensile load.
Tie wraps are not recommended for optical cables because they are easily overtightened.
a.
Orient a cable connector so that the key (the ridge on one side of connector) aligns with the slot
in the transceiver. Then, insert the cable into the transceiver until the latching mechanism clicks.
For instructions specific to cable type, refer to the cable manufacturer’s documentation.
Note
The cable connectors are keyed to ensure correct orientation. If a transceiver does not
install easily, ensure that it is correctly oriented.
b.
Repeat Step a for the remaining transceivers as required.
6.
Check the LEDs to verify that all components are functional. For information about LED patterns,
refer to “Interpreting LED Activity” on page 3-1.
7.
Verify the correct operation of the SilkWorm 4100 by typing the switchShow command from the
workstation.
This command provides information about switch and port status.
8.
Verify the correct operation of the SilkWorm 4100 in the fabric by typing the fabricShow command
from the workstation.
This command provides general information about the fabric.
9.
Back up the switch configuration to an FTP server by typing the configUpload command and
following the prompts.
This command uploads the switch configuration to the server, making it available for downloading
to a replacement switch if necessary.
Brocade SilkWorm 4100 Hardware Reference Manual
Publication Number: 53-0000563-02
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Configuring the SilkWorm 4100
Brocade recommends backing up the configuration on a regular basis to ensure that a complete
configuration is available for downloading to a replacement switch. For specific instructions about
how to back up the configuration, refer to the Fabric OS Procedures Guide. The switchShow,
fabricShow, and configUpload commands are described in detail in the Fabric OS Command
Reference Manual.
Setting the Switch Date and Time
The date and time switch settings are used for logging events. Switch operation does not depend on the
date and time; a switch with an incorrect date and time value still functions properly.
You can synchronize the local time of the principal or primary fabric configuration server (FCS) switch
to that of an external Network Time Protocol (NTP) server.
To set the date and time of a switch:
1.
Log in to the switch as admin.
2.
Type the date command at the command line using the following syntax:
date “MMDDhhmm[CC]YY”
The values represent the following:
•
•
•
•
•
•
MM is the month (01-12).
DD is the date (01-31).
hh is the hour (00-23).
mm is minutes (00-59).
CC is the century (19-20).
YY is the year (00-99).
Year values greater than 69 are interpreted as 1970-1999; year values less than 70 are interpreted as
2000-2069. The date function does not support Daylight Savings Time or time zones, so changes will
have to be reset manually.
Example
switch:admin> date
Fri May 5 21:50:00 UTC 1989
switch:admin>
switch:admin> date "0624165203"
Tue Jun 24 16:52:30 UTC 2003
switch:admin>
Synchronizing Local Time with an External
Source
Use this procedure to synchronize the local time of the principal or primary FCS switch with that of an
external NTP server:
2-8
Brocade SilkWorm 4100 Hardware Reference Manual
Publication Number: 53-0000563-02
Configuring the SilkWorm 4100
1.
Log in as admin.
2.
Enter the tsClockServer [ipaddr] command
2
The ipaddr variable represents the IP address of the NTP server that the switch can access. This
argument is optional; by default, its value is “LOCL”.
Example
switch:admin> tsclockserver
LOCL
switch:admin> tsclockserver 132.163.135.131
switch:admin>
Correcting the Time Zone of a Switch
If the time of your switch(es) is off by hours (and not minutes), use the following procedure on all
switches to set the time zone:
1.
Log in as admin.
2.
Enter the tsTimeZone command as follows:
tstimezone [houroffset [, minuteoffset]]
•
•
•
For Pacific Standard Time, enter tsTimeZone -8,0
For Central Standard Time, enter tsTimeZone -6,0
For Eastern Standard Time, enter tsTimeZone -5,0
The default time zone for switches is Universal Time Conversion (UTC), which is eight hours ahead
of Pacific Standard Time. Additional time zone conversions are listed later in this section.
The parameters listed do not apply if the time zone of the switch(es) has already been changed from
the default (eight hours ahead of PT).
Refer to the tsTimeZone command in the Fabric OS Command Reference Manual for more detailed
information about the command parameters.
3.
Repeat Steps 1 and 2 on all switches for which the time zone needs to be set.
This needs to be done only once, because the value is stored in nonvolatile memory.
For U.S. time zones, use theTable 2-1 to determine the correct parameter for the tsTimeZone command.
Table 2-1
tsTimeZone Command Parameter Selection
Local Time
tsTimeZone parameter (difference from UTC)
Atlantic Standard
-4,0
Atlantic Daylight
-3,0
Eastern Standard
-5,0
Eastern Daylight
-4,0
Central Standard
-6,0
Central Daylight
-5,0
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Recommendations for Cable Management
Table 2-1
tsTimeZone Command Parameter Selection
Local Time
tsTimeZone parameter (difference from UTC)
Mountain Standard
-7,0
Mountain Daylight
-6,0
Pacific Standard
-8,0
Pacific Daylight
-7,0
Alaskan Standard
-9,0
Alaskan Daylight
-8,0
Hawaiian Standard
-10,0
Recommendations for Cable Management
Cables can be organized and managed in a variety of ways, such as by using cable channels or patch
panels. Following is a list of recommendations:
•
•
Plan cable management before installing the switch in a rack.
Leave at least one meter of slack for each port cable. This provides room to remove and replace
the switch, allows for inadvertent movement of the rack, and helps prevent the cables from
being bent to less than the minimum bend radius.
Caution
A 50-micron cable should not be bent to a radius less than 2 inches under full tensile load
and 1.2 inches with no tensile load.
Tie wraps are not recommended for optical cables because they are easily overtightened.
•
If using Brocade ISL Trunking:
-
2-10
It might be useful to group cables by trunking groups.
The cables used in trunking groups must meet specific requirements. For a list of these
requirements, refer to the Brocade Fabric OS Features Guide.
•
For easier maintenance, label the fiber-optic cables and record the devices to which they are
connected.
•
Keep LEDs visible by routing port and other cables directly down or otherwise away from the
LEDs.
Brocade SilkWorm 4100 Hardware Reference Manual
Publication Number: 53-0000563-02
Chapter
Operating the SilkWorm 4100
3
This chapter provides the following information:
•
•
•
•
“Powering the SilkWorm 4100 On and Off,” next
“Interpreting LED Activity” on page 3-1
“Interpreting POST Results” on page 3-6
“Maintaining the SilkWorm 4100” on page 3-6
Powering the SilkWorm 4100 On and Off
To power the SilkWorm 4100 on, connect one or both power cords to the power connectors on the
power supplies and to a power source; then, set the AC power switches to “I”. Power is supplied to the
switch as soon as the first power supply is connected and powered on.
The switch runs POST by default each time it is powered on; it requires a minimum of three minutes to
boot and complete POST.
To power the SilkWorm 4100 off, power off both power supplies by setting each AC power switch to
“O”. All devices are returned to their initial state the next time the switch is powered on.
Interpreting LED Activity
System activity and status can be determined through the activity of the LEDs on the switch.
There are three possible LED states: no light, a steady light, and a flashing light. The lights are in one of
the following colors:
•
•
Green
Amber
Sometimes, the LEDs flash any of the colors during boot, POST, or other diagnostic tests. This is
normal; it does not indicate a problem unless the LEDs do not indicate a healthy state after all boot
processes and diagnostic tests are complete.
Brocade SilkWorm 4100 Hardware Reference Manual
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3
Interpreting LED Activity
LEDs on the Port Side of the Switch
The port side of the switch has the following LEDs:
•
•
•
•
One system status LED (above) on the left side
One power status LED (below) on the left side
One port status LED below pairs of Fibre Channel ports (left LED)
One port speed LED below pairs of Fibre Channel ports (right LED)
Note
The pairs of port LEDs for all 32 ports are arrayed below the bottom of row ports. The
pairs of port LEDs are located in the array in the same relative positions as the ports.
Figure 3-1 shows the port side of the SilkWorm 4100.
Figure 3-1
LEDs on Port Side of SilkWorm 4100
0
4
1
5
2
6
3
7
8
12
9
13
10
14
11
15
16
20
17
21
18
22
19
23
24
28
25
29
26
30
27
31
Port Side View
scale: 5/16" = 1"
System
Status
LED
Link
LED
Serial
Port
Ethernet
Port
Top
port
LEDs
FC Ports
(0-7)
scale: 3/4" = 1"
0
4
Power
Status
LED
3-2
Switch ID
Pull-out
Tab
Speed
LED
1
5
2
6
Port Speed
LEDs
Port Status
LEDs
3
7
LEDs
for
bottom
ports
Brocade SilkWorm 4100 Hardware Reference Manual
Publication Number: 53-0000563-02
Interpreting LED Activity
3
Table 3-1 describes the LEDs and their actions on the port side of the switch.
Table 3-1
Port Side LED Patterns During Normal Operation
LED Name
LED Color
Status of Hardware
Recommended Action
Power
Status
No light
System is off or there is an
internal power supply failure.
Verify that system is on. If the
system is on, the unit is faulty.
Contact Technical Support.
System
Status
Steady green
System is on and power supplies
are functioning properly.
No action required.
No light
System is off, boot is not
complete, or boot failed.
Verify that system is on and has
completed booting.
Steady green
System is on and power supplies
are functioning properly.
No action required.
Steady amber
(for more than
five seconds)
Boot failed, the system is faulty.
Perform the following steps:
Flashing amber/
green
1.
Connect a serial cable to the
system.
2.
Reboot the system.
3.
Check the failure indicated
on the system console.
4.
Contact Technical Support.
Attention is required. A number
of variables can cause this status
including a single power supply
failure, a fan failure, or one or
more environmental ranges has
exceeded.
Check the management interface
and the error log for details on
the cause of status.
Contact Technical Support if
required.
Ethernet
Speed
No light
Port speed is 10 Mb/sec.
No action required.
Steady green
Port speed is 100 Mb/sec.
No action required.
Ethernet
Link
No light
There is no link.
Verify that the Ethernet cable is
connected correctly.
Steady amber
There is a link.
No action required.
Flashing amber/
no light
There is link activity (traffic).
No action required.
No light
Port is transmitting/receiving at
1 Gbit/sec.
No action required.
Steady green
Port is transmitting/receiving at
2 Gbit/sec.
No action required.
Steady amber
Port is transmitting/receiving at
4 Gbit/sec.
No action required.
Port Speed
Brocade SilkWorm 4100 Hardware Reference Manual
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3
Interpreting LED Activity
Table 3-1
Port Side LED Patterns During Normal Operation (Continued)
LED Name
LED Color
Status of Hardware
Recommended Action
Port Status
No light
No signal or light carrier (media
or cable) detected.
Check transceiver and cable.
Slow flashing
green (flashing
in two-second
intervals)
Port is online but segmented
No action required.
because of a lookback cable or
incompatible switch connection.
Fast flashing
green (flashing
in half-second
intervals)
Port is online and an internal
loopback diagnostic test is
running.
No action required.
Flickering green
(steady with
random flashes)
Port is online and frames are
flowing through the port.
No action required.
Steady green
Port is online (connected to
external device) but has no
traffic.
No action required.
Slow flashing
amber (flashing
in two-second
intervals)
Port is disabled (because of
diagnostics or the portDisable
command).
Verify that the diagnostic tests
are not running. Reenable the
port using the portEnable
command.
Fast flashing
amber (flashing
in half-second
intervals)
Port is faulty.
Check the management interface
and the error log for details on
the cause of status.
Steady amber
(for more than
five seconds)
Port is receiving light or signal
carrier at 4 Gbit/sec; but is not
yet online.
Contact Technical Support if
required.
No action required.
LEDs on the Nonport Side of the Switch
The nonport side of the switch has the following LEDs:
•
•
One power supply LED next to the AC power switch on each power supply
One fan status LED at the top of each fan assembly (inside the bezel)
Figure 3-2 shows the nonport side of the switch.
3-4
Brocade SilkWorm 4100 Hardware Reference Manual
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Interpreting LED Activity
Figure 3-2
3
LEDs on Nonport Side of SilkWorm 4100
Power
Supply 2
Status LED
Power
Supply 2
Fan 3
Status LED
Fan 3
Fan 2
Status LED
Fan 2
Fan 1
Power
Supply 1
Status LED
Power
Supply 1
Fan 1
Status LED
Nonport Side View
Table 3-2 describes the LEDs on the nonport side of the switch.
Table 3-2
Nonport Side LED Patterns During Normal Operation
LED Name
LED Color
Status of Hardware
Recommended Action
Power
Supply
Status
No light
Power supply is not
receiving power or is off.
Verify that the power supply is
on and seated and the power cord
is connected to a functioning
power source.
Steady green
Power supply is operating
normally.
No action required.
Steady amber
(for more than
five seconds)
Power supply fault for one
of the following reasons:
Try the following:
Fan Status
•
power cable is
disconnected
•
•
power supply is off
the power supply has
failed
•
check the power cable
connection
•
verify that the power supply
is powered on
•
replace the power supply
No light
Fan assembly is not
receiving power.
No action required.
Steady green
Fan assembly is operating
normally.
No action required.
Steady amber
(for more than
five seconds)
Fan fault for one of the
following reasons:
Verify that the fan FRU is
enabled. If the fan FRU is
enabled, the FRU is faulty and
should be replaced.
Brocade SilkWorm 4100 Hardware Reference Manual
Publication Number: 53-0000563-02
•
one or more of the
fan(s) in the fan
assembly has failed
•
the fan FRU was
disabled by the user
3-5
3
Interpreting POST Results
Interpreting POST Results
POST is a system check that is performed each time the switch is powered on, rebooted, or reset, and
during which the LEDs flash different colors.
To determine whether POST completed successfully and whether any errors were detected:
•
•
Verify that the LEDs on the switch indicate that all components are healthy (LED patterns are
described in Table 3-1 on page 3-3 and Table 3-2 on page 3-5). If one or more LEDs do not
display a healthy state:
1.
Verify that the LEDs are not set to “beacon” (this can be determined through the
switchShow command or Advanced Web Tools). For information about how to turn
beaconing on and off, refer to the Brocade Fabric OS Procedures Guide or the Brocade
Advanced Web Tools Administrator’s Guide.
2.
Follow the recommended action for the observed LED behavior, as listed in
Table 3-1 on page 3-3 or Table 3-2 on page 3-5.
Verify that the switch prompt displays on the terminal of a computer workstation that is
connected to the switch.
If the prompt does not display when POST completes, press Enter. If the prompt still does not
display, open another telnet session or access the switch through another management tool. If
this is not successful, the switch did not successfully complete POST; contact your switch
supplier for repair.
•
Review the system log for errors.
Any errors detected during POST are written to the system log, which is accessible through the
errShow command. For information about this command, refer to the Brocade Fabric OS
Command Reference Manual. For information about error messages, refer to the Brocade
Diagnostic and System Error Message Reference Manual.
Maintaining the SilkWorm 4100
The SilkWorm 4100 does not require any regular physical maintenance and is designed for high
availability and to minimize the chance of failure. It includes diagnostic tests and field-replaceable units,
described in the following sections.
3-6
Brocade SilkWorm 4100 Hardware Reference Manual
Publication Number: 53-0000563-02
Maintaining the SilkWorm 4100
3
Diagnostic Tests
In addition to POST, Fabric OS includes diagnostic tests to help you troubleshoot the hardware and
firmware. This includes tests of internal connections and circuitry, fixed media, and the transceivers and
cables in use. The tests are implemented by command, either through a telnet session or through a
terminal set up for a serial connection to the switch. Some tests require the ports to be connected by
external cables, to allow diagnostics to verify the serializer/deserializer interface, transceiver, and cable.
Some tests require loop back plugs.
Diagnostic tests are run at link speeds of 1 Gbit/sec, 2 Gbit/sec, and 4 Gbit/sec.
Note
Diagnostic tests might temporarily lock the transmit and receive speed of the links during diagnostic
testing.
For information about specific diagnostic tests, refer to the Brocade Fabric OS Procedures Guide.
Field Replaceable Units (FRUs)
You can replace the power supplies and fan assemblies onsite without the use of special tools. The power
supplies and fan assemblies are keyed to ensure correct orientation during installation. Replacement
instructions are provided with all replacement units ordered.
Warning
The SilkWorm 4100 has two power cords. To remove all power from the switch, disconnect both power
cords before servicing.
Power Supplies
The two power supplies are hot-swappable if replaced one at a time. They are identical and fit into
either power supply slot.
Fabric OS identifies the power supplies as follows (viewing the switch from the nonport side):
•
•
Power supply #1 is on the right
Power supply #2 is on the left
Any of the following methods can be used to determine whether a power supply requires replacing:
•
Check the power supply status LED next to the On/Off switch (see “LEDs on the Nonport
Side of the Switch” on page 3-4)
•
Type the psShow command at the command prompt to display power supply status as
shown below:
switch:admin> psshow
Power Supply #1 is OK
V10415, QW2M0000269 , 60-0000849-01,X4, DPSN-210BB A, S4, QW2M0000
Power Supply #2 is OK
V10415, LX2M000020 , 60-0000849-01,X4, DPSN-210BB A, S3, LX2M0000
•
In Advanced Web Tools, click the Power Status icon.
Brocade SilkWorm 4100 Hardware Reference Manual
Publication Number: 53-0000563-02
3-7
3
Maintaining the SilkWorm 4100
Fan Assemblies
The three fan assemblies are hot-swappable if replaced one at a time. They are identical and fit into
any fan assembly slot.
Each fan assembly contains two fans, identified by Fabric OS as follows (viewing the switch from
the nonport side):
•
•
•
Fan assembly #1 is on the right.
Fan assembly #2 is in the center.
Fan assembly #3 is on the left.
Any of the following methods can be used to determine whether a fan assembly requires replacing:
•
Check the fan status LED on the face of the fan assembly (see “LEDs on the Nonport Side
of the Switch” on page 3-4)
•
Type the fanShow command at the command prompt.
switch:admin> fanshow
Fan 1 sensor 1 is OK,
Fan 1 sensor 2 is OK,
Fan 2 sensor 1 is OK,
Fan 2 sensor 2 is OK,
Fan 3 sensor 1 is OK,
Fan 3 sensor 2 is OK,
•
3-8
speed
speed
speed
speed
speed
speed
is
is
is
is
is
is
5625
5578
5720
6026
5921
5818
RPM
RPM
RPM
RPM
RPM
RPM
In Advanced Web Tools, click the Fan Status icon.
Brocade SilkWorm 4100 Hardware Reference Manual
Publication Number: 53-0000563-02
Appendix
Product Specifications
A
This appendix provides the following information:
•
•
•
•
•
•
•
•
•
•
•
•
•
“Switch Components,” next
“Weight and Physical Dimensions” on page A-2
“Facility Requirements” on page A-2
“Power Supply Specifications” on page A-3
“Power Cords (Japan, Denan)” on page A-3
“Environmental Requirements” on page A-4
“General Specifications” on page A-5
“Data Transmission Ranges” on page A-6
“Memory Specifications” on page A-6
“Fibre Channel Port Specifications” on page A-6
“Serial Port Specifications” on page A-7
“POST and Boot Specifications” on page A-8
“Regulatory Compliance” on page A-9
Switch Components
The SilkWorm 4100 switch includes the following components:
•
Cabinet-mountable 1U chassis designed to be mounted in a 19-inch cabinet space, with forcedair cooling that flows from the nonport side of the switch to the port side.
•
32 Fibre Channel ports, compatible with short wavelength (SWL), long wavelength (LWL),
and extended long wavelength (ELWL) SFP transceivers.
•
•
One RS-232 serial port on the port side of the switch (DB-9 connector)
•
64 port LEDs, 1 switch power LED, 1 switch status LED, 2 Ethernet LEDs, 2 power supply
LEDs, and 3 fan LEDs.
•
•
Two universal AC input and redundant power supplies with AC switches and built-in fans.
One IEEE-compliant RJ-45 connector on the port side of the switch for use with 10/100 MB/
sec Ethernet
Three fan assemblies containing two fans each.
The fans have two speeds, which are set automatically and cannot be modified. They default to
high speed upon boot, then switch to low speed as Fabric OS comes online, returning to high
speed only as required.
Brocade SilkWorm 4100 Hardware Reference Manual
Publication Number: 53-0000563-02
A-1
A
Weight and Physical Dimensions
•
Field-replaceable motherboard assembly, enclosed in a grounded EMI cage.
Weight and Physical Dimensions
Table A-1 lists the weight and dimensions of the SilkWorm 4100.
Table A-1
Physical Specifications
Dimension
Value
Height
1U = 42.44 mm (1.67 inches)
Depth
584.2 mm (23.0 inches)
Width
429 mm (16.89 inches)
Weight (with two power supplies and three fan assemblies installed)
10.16 kg (22.4 lbs)
Facility Requirements
To ensure correct operation of the switch, the facility where the switch is in use must meet the following
requirements:
•
Electrical:
•
Thermal:
•
•
Air flows from the non-port side to the port side. A minimum air flow of 47 cubic
feet/minute (79.8 cubic meters/hour) available in the immediate vicinity of the switch.
Ambient air temperature must not exceed 40° Celsius (104° Fahrenheit) while the
switch is operating.
Environmental: The specifications listed in Table A-3 on page A-4
Cabinet:
-
A-2
Primary AC input 100-240 VAC (switch autosenses input voltage), 47-63 Hz.
Correctly wired primary outlet, protected by a circuit breaker and grounded in
accordance with local electrical codes.
Adequate supply circuit, line fusing, and wire size, as specified by the electrical rating
on the switch nameplate.
Electrical interference must be less than the levels stated in the standards listed in
Table A-4 on page A-5, under “Immunity.”
Cabinet space of one rack unit in a 19-inch cabinet.
All equipment in cabinet must be grounded through a reliable branch circuit
connection.
The additional weight of the switch must not exceed the cabinet’s weight limits.
The cabinet must be secured to ensure stability in case of unexpected movement.
Brocade SilkWorm 4100 Hardware Reference Manual
Publication Number: 53-0000563-02
Power Supply Specifications
A
Power Supply Specifications
The power supplies are universal and capable of functioning worldwide without voltage jumpers or
switches. They meet IEC 61000-4-5 surge voltage requirements and are autoranging in terms of
accommodating input voltages and line frequencies. Each power supply has a built-in fan for cooling,
pushing air towards the port side of the switch.
Table A-2 lists the power supply specifications for the SilkWorm 4100.
Table A-2
Power Supply Specifications
Specification
Value
Outlet
The outlet must be a correctly wired, primary with earth ground
Maximum output
210 Watts
System power consumption
120 Watts maximum, 80 Watts typical
Input voltage
90 - 264 VAC, Universal
Input line frequency
47 - 63 Hz
Harmonic distortion
Active power factor correction per EN61000-3-2
BTU rating at 80% efficiency 120 Watts / 0.8 X 3.412 BTU/hr/Watts = 512 BTU/hr
Inrush current
Maximum of 15 amps for period between 10-150 ms at 50
degrees Celsius (122 degrees Fahrenheit), hot or cold start
Input line protection
Fused in both hot and neutral lines, using independent fuses
Power Cords (Japan, Denan)
Caution
Never use the power cord packed with your equipment for other products.
Brocade SilkWorm 4100 Hardware Reference Manual
Publication Number: 53-0000563-02
A-3
A
Environmental Requirements
Environmental Requirements
Table A-3 lists the acceptable environmental ranges for both operating and nonoperating (such as
during transportation or storage) conditions.
Table A-3
Condition
A-4
Environmental Requirements
Acceptable During Operation
Acceptable During Non-Operation
Ambient
0° to 40° Celsius
Temperature (32° to 104° Fahrenheit)
-25° to 70° Celsius
(-13° to 158° Fahrenheit)
Humidity
20% to 85% RH non-condensing, at
40° Celsius (104° Fahrenheit) , with
maximum gradient of 10% per hour
10% to 85% RH non-condensing, at 70°
Celsius (158° Fahrenheit)
Altitude
0 to 3 kilometers (10,000 feet) above sea
level
0 to 12 kilometers (40,000 feet) above
sea level
Shock
20 G, 6 ms, half-sine wave
15 G, 12-18 milliseconds, trapezoid
Vibration
0.5 G, 5-500 Hz
2.0 G, 5-500 Hz
Air flow
25 cubic feet/minute (42.5 cubic meters/
hour)
None required.
Brocade SilkWorm 4100 Hardware Reference Manual
Publication Number: 53-0000563-02
General Specifications
A
General Specifications
Table A-4 lists the general specifications for the SilkWorm 4100.
Table A-4
General Specifications
Specification
Description
Configurable port types
F_Port, FL_Port, and E_Port
EMC (electromagnetic
compatibility)
Emissions
An operating SilkWorm 4100 conforms to the emissions
requirements specified by the following regulations:
• FCC Rules & Regulations, Part 15 subpart B, Class A
• CSA C108.8 Class A
• VCCI Class A ITE
• CISPR 22 Class A
• EN55022 Class A
• AS/NZF 3548: 1995 Class A
• Korean EMC Requirements
• BSMI Standard CNS 13438
• EMC Directive 89/336/EEC
• EN5022 Level A
• EN50082-2/EN55024: 1998
• CNS13438 Class A
• ICES-003 Class A
Immunity
• IEC 61000-4-2 Severity Level 3 for Electrostatic
Discharge
• IEC 61000-4-3 Severity Level 3 for Radiated Fields
• IEC 61000-4-4 Severity Level 3 for Fast Transients
• IEC 61000-4-5 Severity Level 3 for Surge Voltage
• IEC 61000-4-6 Conducted Emissions
• IEC 61000-4-11 Voltage Variations
• EN 61000-4-12 Oscillatory Waves Immunity
• EN 61000-3-2 Limits for Harmonic Current Emissions
• EN 61000-3-3 JEIDA
System architecture
Nonblocking shared-memory switch
System processor
PowerPC 440GP, 400 MHz CPU
ANSI Fibre Channel protocol
FC-PH (Fibre Channel Physical and Signalling Interface
standard)
Modes of operation
Fibre Channel Class 2 and Class 3
Fabric initialization
Complies with FC-SW-3 Rev. 6.6
FC-IP (IP over Fibre Channel)
Complies with FC-IP 2.3 of FCA profile
Aggregate switch I/O bandwidth 256 Gbit/sec if all 32 ports are running at 4 Gbit/sec, full duplex
Port-to-port latency
Brocade SilkWorm 4100 Hardware Reference Manual
Publication Number: 53-0000563-02
Less than 2 microseconds with no contention (destination port
is free)
A-5
A
Data Transmission Ranges
Data Transmission Ranges
Table A-5 provides the data transmission ranges for different cable types and port speeds.
Table A-5
Laser Data Transmission Ranges
Port Speed
Cable Size Short Wavelength
(microns) (SWL)
Long Wavelength
(LWL)
Extended Long
Wavelength
(ELWL)
1 Gbit/sec
50
1,640 feet (500
meters)
6.2 miles (10 km)
n.a
62.5
984 feet (300 meters)
6.2 miles (10 km)
n.a
9
n.a
6.2 miles (10 km)
24.8 miles (40 km)
50
984 feet (300 meters)
6.2 miles (10 km)
n.a
62.5
492 feet (150 meters)
6.2 miles (10 km)
n.a
9
n.a
10 km (6.2 miles)
without a Brocade
Extended Fabrics
license; 50 to 100 km
with a Brocade
Extended Fabrics
license
24.8 miles (40 km)
50
492 feet (150 meters)
n.a
n.a
62.5
230 feet (70 meters)
n.a
n.a
9
n.a
n.a
n.a
2 Gbit/sec
4 Gbit/sec
Memory Specifications
The SilkWorm 4100 has four types of memory devices:
•
•
•
•
Boot flash:
4 MB
Kernel flash:
16 MB
Compact flash:
512 MB
Main memory (SDRAM): 512 MB- 1 GB
Fibre Channel Port Specifications
The Fibre Channel ports in the SilkWorm 4100 are compatible with SWL, LWL, and ELWLW SFP
transceivers. The strength of the signal is determined by the type of transceiver in use.
The ports meet all required safety standards. For more information about these standards, see
“Regulatory Compliance” on page A-9.
A-6
Brocade SilkWorm 4100 Hardware Reference Manual
Publication Number: 53-0000563-02
Serial Port Specifications
A
The ports are capable of operating at 1, 2, or 4 Gbit/sec and are able to autonegotiate to the higher of 1
or 2 Gbit/sec. Operation at 4 Gbit/sec must be manually set.
Serial Port Specifications
The serial port is located on the port side of the switch. It is a three-wire RS-232 port with a DB-9 male
connector, designed to connect to a DTE port.
Note
To protect the serial port from dust and ESD, keep the cover on the serial port whenever the port is not in
use.
The serial port can be used to connect to a computer workstation to configure the switch IP address
without connecting to the fabric. The serial port’s parameters are fixed at 9600 baud, 8 data bits, and no
parity, with flow control set to None.
The port requires a straight serial cable with a female 9-pin subminiature-D connector. Only pins 2, 3,
and 5 are supported.
Table A-6 lists the cable pinouts.
Table A-6 Cabling Pinouts
PIN
Signal
Description
1
Not supported
Not supported
2
RxData
Receive data
3
TxData
Transmit data
4
Not supported
Not supported
5
GND
Logic ground
6
Not supported
Not supported
7
Not supported
Not supported
8
Not supported
Not supported
9
Not supported
Not supported
A 10 ft. (3.0 m) serial cable is provided with the switch. It can be converted from a DB-9 serial cable to
an RJ-45 serial cable by removing the adapter on the end of the cable.
To remove the adapter from the end of the DB-9 serial cable:
1.
Ensure the cable and both screws have been disengaged.
2.
Pull the adapter straight out, without moving it from side to side, to loosen seating of the connector.
If you move the adapter side to side, you might damage the adapter.
Caution
When removing the DB-9 male connector from the DTE port, do not use excessive force; otherwise the
DB-9 connector will split into two parts easily so that the switch’s DTE port is not damaged.
Brocade SilkWorm 4100 Hardware Reference Manual
Publication Number: 53-0000563-02
A-7
A
POST and Boot Specifications
POST and Boot Specifications
The switch performs POST by default each time it is powered on or rebooted or the system is reset.
Boot time with POST is a minimum of three minutes.
POST can be skipped after subsequent reboots by entering the fastBoot command. For more
information about this command, refer to the Brocade Fabric OS Command Reference.
POST
The success/fail results of the diagnostic tests that run during POST can be monitored through LED
activity, the error log, or a command-line interface.
POST includes the following tasks:
1. Conducting preliminary POST diagnostics.
2. Initializing the operating system.
3. Initializing hardware.
4. Running diagnostic tests on several functions, including circuitry, port functionality, memory,
statistics counters, and serialization.
Boot
Boot completes in a minimum of three minutes if POST is run. In addition to POST, boot includes the
following tasks after POST is complete:
A-8
1.
Performing universal port configuration.
2.
Initializing links.
3.
Analyzing fabric. If any ports are connected to other switches, the switch participates in a
fabric configuration.
4.
Obtaining a domain ID and assigning port addresses.
5.
Constructing unicast routing tables.
6.
Enabling normal port operation.
Brocade SilkWorm 4100 Hardware Reference Manual
Publication Number: 53-0000563-02
Regulatory Compliance
A
Regulatory Compliance
This section describes the regulatory compliance requirements for the SilkWorm 4100. It contains:
•
•
•
•
•
•
•
•
“FCC Warning (USA only),” next
“VCCI Statement” on page A-10
“CE Statement” on page A-10
“Canadian Requirements” on page A-10
“Laser Compliance” on page A-11
“RTC Battery” on page A-11
“Electrical Safety” on page A-11
“Regulatory Certifications” on page A-12
FCC Warning (USA only)
This equipment has been tested and complies with the limits for a Class A computing 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 instruction manual, might cause harmful interference to radio communications.
Operation of this equipment in a residential area is likely to cause harmful interference, in which case
the user will be required to correct the interference at the user’s own expense.
Brocade SilkWorm 4100 Hardware Reference Manual
Publication Number: 53-0000563-02
A-9
A
Regulatory Compliance
VCCI Statement
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 might arise. When such trouble occurs, the user might be required to take corrective actions.
CE Statement
Caution
This is a Class A product. In a domestic environment, this product might cause radio interference, and
the user might be required to take corrective measures.
The standards compliance label on the SilkWorm 4100 contains the CE mark which indicates that this
system conforms to the provisions of the following European Council directives, laws, and standards:
•
Electromagnetic Compatibility (EMC) Directive 89/336/EEC and the Complementary
Directives 92/31/EEC and 93/68/EEC
•
•
Low Voltage Directive (LVD) 73/23/EEC and the Complementary Directive 93/68/EEC
EN50082-2/EN55024:1998 (European Immunity Requirements)
-
EN61000-3-2
EN61000-3-3/JEIDA (European and Japanese Harmonics Spec)
Canadian Requirements
This Class A digital apparatus meets all requirements of the Canadian Interference-Causing Equipment
Regulations, ICES-003 Class A.
Cet appareil numerique de la classe A respecte toutee les exigences du Regiements sur le material
brouilleur du Canada, NMB-003.
A-10
Brocade SilkWorm 4100 Hardware Reference Manual
Publication Number: 53-0000563-02
Regulatory Compliance
A
Laser Compliance
This equipment contains Class 1 laser products and complies with FDA Radiation Performance
Standards, 21 CFR Subchapter I and the international laser safety standard IEC 825-2.
Caution
Use only optical transceivers that are qualified by Brocade Communications Systems and comply with
the FDA Class 1 radiation performance requirements defined in 21 CFR Subchapter I, and with IEC
825-2. Optical products that do not comply with these standards might emit light that is hazardous to the
eyes.
RTC Battery
Caution
Do not attempt to replace the real-time clock (RTC) battery. There is danger of explosion if the battery is
incorrectly replaced or disposed of. Contact your switch supplier if the real-time clock begins to lose
time.
Electrical Safety
Caution
This switch might have more than one power cord.To reduce the risk of electric shock, disconnect both
power cords before servicing.
Caution
Connect the power cord only to a grounded outlet.
Apparaten skall an slutas till jordat nattutag.
Caution
This product is designed for an IT power system with phase-to-phase voltage of 230V. After operation of
the protective device, the equipment is still under voltage if it is connected to an IT power system.
Brocade SilkWorm 4100 Hardware Reference Manual
Publication Number: 53-0000563-02
A-11
A
Regulatory Compliance
Regulatory Certifications
Table A-7 lists the safety and EMC (electromagnetic compatibility) specifications for which the
SilkWorm 4100 is certified.
Table A-7 SilkWorm 4100 Regulatory Certifications
Country
Safety Specification
EMC Specification
Canada
CSA 22.2 No. 60950 Third Ed.
ICES-003 Class A
United States UL 60950 Third Ed., Info. Tech. Equip. FCC Part 15, Subpart B (CFR title 47),
Class A
Japan
IEC 60950+A1+A2+A3+A4+A11
VCCI Class A
EN 61000-3-2 Harmonics (JEIDA
Limits)
EN 61000-3-3 Flicker (JEIDA Limits)
International
IEC 60950+A1+A2+A3+A4+A11
CISPR22 Class A
European
Union
89/336/EEC
EN 60950:92
+A1:93+A2:93+A3:95+A4:96+A11:97 EN 55022:1998 Class A
73/23/EEC
EN 55024 (Immunity)
(Austria,
Belgium,
Denmark,
Finland,
France,
Germany,
Greece,
Ireland, Italy,
Luxembourg,
Netherlands,
Norway,
Portugal,
Spain,
Sweden,
United
Kingdom)
Australia and
New Zealand
A-12
EN 61000-4-2 Electrostatic Discharge
EN60825-1:1994/A11, -2
EN 61000-4-3 Radiated Fields
TUV (Germany only)
EN 61000-4-4 Electrical Fast Transients
EN 61000-4-5 Surge Voltage
EN 61000-4-6 Conducted Emissions
EN 61000-4-8 Magnetic Fields
IEC 60950+A1+A2+A3+A4+A11
(NEMKO CB Report) (Norway only)
EN 61000-4-11 Voltage Dips and
Interruptions
EN 61000-3-2 Limits for Harmonic
Current Emissions
EN 61000-3-3 Flicker
EN 55022: 1998 Class A
Brocade SilkWorm 4100 Hardware Reference Manual
Publication Number: 53-0000563-02
Glossary
#
8b/10b
encoding
An encoding scheme that converts each 8-bit byte into 10 bits. Used to balance 1s and 0s in high-speed
transports.
A
ABTS
ACC
access
fairness
active copper
address
identifier
Abort Basic Link Service. Also referred to as “Abort Sequence.”
Accept link service reply. The normal reply to an Extended Link Service request (such as FLOGI),
indicating that the request has been completed.
A process by which contending nodes are guaranteed access to an arbitrated loop.
A Fibre Channel connection that allows copper cabling up to 33 meters (36 yards) between devices.
A 24-bit or 8-bit value used to identify the source or destination of a frame. See also S_ID and D_ID.
Advanced
Fabric
Services,
Brocade
A Brocade proprietary feature.
Advanced
Performance
Monitoring,
Brocade
A Brocade proprietary feature.
Advanced
Zoning,
Brocade
A Brocade proprietary feature.
AL_PA
Arbitrated-loop physical address. A unique 8-bit value assigned during loop initialization to a port in an
arbitrated loop. Alternately, “arbitrated-loop parameters.”
AL_TIME
Arbitrated-loop timeout value. Twice the amount of time it would take for a transmission word to
propagate around a worst-case loop. The default value is 15 milliseconds (ms).
alias
A logical grouping of elements in a fabric. An alias is a collection of port numbers and connected
devices, used to simplify the entry of port numbers and WWNs when creating zones.
Brocade SilkWorm 4100 Hardware Reference Manual
Publication Number: 53-0000563-02
Glossary-1
alias address
identifier
An address identifier recognized by a port in addition to its standard identifier. An alias address
identifier can be shared by multiple ports. See also alias.
alias AL_PA
An AL_PA value recognized by an L_Port in addition to the AL_PA assigned to the port. See also
AL_PA.
alias server
A fabric software facility that supports multicast group management.
ANSI
American National Standards Institute.
ARB
Arbitrative primitive signal. Applies only to an arbitrated-loop topology. Transmitted as the fill word by
an L_Port to indicate that the port is arbitrating access to the loop.
arbitrated loop
A shared 100-Mbit/sec Fibre Channel transport structured as a loop. Can support up to 126 devices and
one fabric attachment. See also topology.
arbitration
area number
In Brocade Fabric OS v4.0 and above, ports on a switch are assigned a logical area number. Port area
numbers can be viewed by entering the switchshow command. They are used to define the operative
port for many Fabric OS commands: for example, area numbers can be used to define the ports within
an alias or zone.
ARP
Address Resolution Protocol. A TCP/IP function for associating an IP address with a link-level address.
ARR
Asynchronous response router. Refers to Management Server GS_Subtype Code E4, which appears in
portlogdump command output.
ASD
Alias server daemon. Used for managing multicast groups by supporting the create, add, remove, and
destroy functions.
ASIC
Application-specific integrated circuit.
ATM
Asynchronous Transfer Mode. A transport used for transmitting data over LANs or WANs that transmit
fixed-length units of data. Provides any-to-any connectivity and allows nodes to transmit
simultaneously.
authentication
autocommit
autoreboot
AW_TOV
Glossary-2
A method of gaining orderly access to a shared-loop topology.
The process of verifying that an entity in a fabric (such as a switch) is what it claims to be. See also
digital certificate, switch-to-switch authentication.
A feature of the firmwaredownload command. Enabled by default, autocommit commits new
firmware to both partitions of a control processor.
Refers to the -b option of the firmwaredownload command. Enabled by default.
Arbitration wait timeout value. The minimum time an arbitrating L_Port waits for a response before
beginning loop initialization.
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B
backbone
fabric
An optional capability that enables scalable meta-SANs by allowing the networking of multiple FC
routers, which connect to the backbone fabric via EB_Port interfaces.
backup FCS
switch
Relates to the Brocade Secure Fabric OS feature. The backup fabric configuration server serves as a
backup in case the primary FCS switch fails. See also FCS switch, primary FCS switch.
BB fabric
A backbone fabric that connects FC Routers. The FC Routers communicate over the backbone fabric
using FCRP (Fibre Channel Router Protocol).
BB_Credit
Buffer-to-buffer credit. The number of frames that can be transmitted to a directly connected recipient
or within an arbitrated loop. Determined by the number of receive buffers available. See also buffer-tobuffer flow control, EE_Credit.
beacon
A tool in which all of the port LEDs on a switch are set to flash from one side of the switch to the other,
to enable identification of an individual switch in a large fabric. A switch can be set to beacon by a CLI
command or through Brocade Advanced Web Tools.
beginning
running
disparity
The disparity at the transmitter or receiver when the special character associated with an ordered set is
encoded or decoded. See also disparity.
BER
Bit error rate. The rate at which bits are expected to be received in error. Expressed as the ratio of error
bits to total bits transmitted. See also error.
BISR
Built-in self-repair.
BIST
Built-in self-test.
bit
synchronization
blind-mate
connector
The condition in which a receiver is delivering retimed serial data at the required bit error rate.
A two-way connector used in some Brocade SilkWorm switches to provide a connection between the
motherboard and the power supply.
block
As it applies to Fibre Channel technology, upper-level application data that is transferred in a single
sequence.
bloom
The code name given to the third-generation Brocade Fabric ASIC. This ASIC is used in SilkWorm
switches 3000 series and beyond.
BOFMS
Brocade open fabric management services.
boot code
Software that initialized the system environment during the early phase of the boot-up process. For
example, boot code might determine the amount of available memory and how to access it.
boot flash
Flash (temporary) memory that stores the boot code and boot.
bport
Back-end port of the ASIC.
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Glossary-3
Brocade MSRS
See MSRS.
broadcast
The transmission of data from a single source to all devices in the fabric, regardless of zoning. See also
multicast, unicast.
buffer-tobuffer flow
control
Management of the frame transmission rate in either a point-to-point topology or in an arbitrated loop.
See also BB_Credit.
bypass
circuitry
Circuits that automatically remove a device from the data path when valid signals are dropped.
C
CA
Certificate authority. A trusted organization that issues digital certificates. See also digital certificate.
CAM
Content-addressable memory.
CAN
Campus area network. A network comprising a limited area but not just one building. See also LAN,
MAN, WAN.
cascade
CDR
CE
Two or more interconnected Fibre Channel switches. Brocade SilkWorm 2000 and later switches can be
cascaded up to 239 switches, with a recommended maximum of seven interswitch links (no path longer
than eight switches). See also fabric, ISL.
Clock and data recovery circuitry.
Conformité Européenne.
CFG
Configuration.
CFN
Change fabric name. Refers to an ELS field that appears in portlogdump command output.
CHAP
chassis
Challenge-Handshake Authentication Protocol. Allows remote servers and clients to securely exchange
authentication credentials. Both the server and client are configured with the same shared secret.
The metal frame in which the switch and switch components are mounted.
CIM
Common Information Model. A management structure enabling disparate resources to be managed by a
common application.
CIMOM
Common Information Model Object Manager. A model for describing management information from
the DMTF. CIM is implementation independent, allowing different management applications to collect
the required data from a variety of sources. CIM includes schemas for systems, networks, applications
and devices, and new schemas will be added. It also provides mapping techniques for interchange of
CIM data with MIB data from SNMP agents and MIF data from DMI-compliant systems.
circuit
Glossary-4
An established communication path between two ports. Consists of two virtual circuits capable of
transmitting in opposite directions.
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Class 1 service
The class of frame-switching service for a dedicated connection between two communicating ports
(also called “connection-oriented service”). Includes acknowledgement of frame delivery or
nondelivery.
Class 2 service
A connectionless class of frame-switching service that includes acknowledgement of frame delivery or
nondelivery.
Class 3 service
A connectionless class of frame-switching service that does not include acknowledgement of frame
delivery or nondelivery. Can be used to provide a multicast connection between the frame originator
and recipients, with acknowledgement of frame delivery or nondelivery.
Class 4 service
A connection-oriented service that allows fractional parts of the bandwidth to be used in a virtual
circuit.
Class 6 service
A connection-oriented multicast service geared toward video broadcasts between a central server and
clients.
Class F
service
The class of frame-switching service for a direct connection between two switches, allowing
communication of control traffic between the E_Ports. Includes acknowledgement of data delivery or
nondelivery.
class of
service
A specified set of delivery characteristics and attributes for frame delivery.
CLI
client
CLS
CM
CMA
CMBISR
CMT
comma
community
(SNMP)
compact flash
configuration
Command line interface. An interface that depends entirely on the use of commands, such as through
telnet or SNMP, and does not involve a GUI.
An entity that, using its common transport (CT), makes requests of a server.
Close primitive signal. Used only in an arbitrated loop. Sent by an L_Port that is currently
communicating in the loop, to close communication with another L_Port.
Central memory.
Central memory architecture. An architecture centralizing memory usage in switches.
Central memory built-in self-repair.
Central memory test.
A unique pattern (either 1100000 or 0011111) used in 8b/10b encoding to specify character alignment
within a data stream. See also K28.5.
A relationship between a group of SNMP managers and an SNMP agent, in which authentication,
access control, and proxy characteristics are defined. See also SNMP.
Flash (temporary) memory that is used in a manner similar to hard disk storage. It is connected to a
bridging component that connects to the PCI bus of the processor. Not visible within the processor's
memory space.
(1) A set of parameters that can be modified to fine-tune the operation of a switch. Use the configshow
command to view the current configuration of your switch.
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Glossary-5
(2) In Brocade Zoning, a zoning element that contains a set of zones. The Configuration is the highestlevel zoning element and is used to enable or disable a set of zones on the fabric. See also zone
configuration.
congestion
The realization of the potential of oversubscription. A congested link is one on which multiple devices
are contending for bandwidth.
connection
initiator
A port that has originated a Class 1 dedicated connection and received a response from the recipient.
connection
recipient
A port that has received a Class 1 dedicated connection request and transmitted a response to the
originator.
core PID
COS
CP
Core switch port identifier. The core PID must be set for v3.1 and earlier switches included in a fabric of
v4.1 switches. This parameter is located in the configure command of firmware versions v3.1 and
earlier. All v4.1 switches and above use the core PID format by default; this parameter is not present in
the configure command for these switches.
Class of service.
Control processor.
CPLD
Complex PLD. Alternately known as “Enhanced PLD (EPLD),” “Super PAL,” and “Mega PAL.”
credit
As it applies to Fibre Channel technology, the number of receive buffers available to transmit frames
between ports. See also BB_Credit, EE_Credit.
CSCN
Common services connection framework.
cut-through
A switching technique that allows the route for a frame to be selected as soon as the destination address
is received. See also route.
D
D_ID
Destination identifier. A 3-byte field in the frame header, used to indicate the address identifier of the
N_Port to which the frame is headed.
DAS
Direct attached storage.
data word
A type of transmission word that occurs within frames. The frame header, data field, and CRC all
consist of data words. See also frame, ordered set, transmission word.
datagram
A Class 3 Fibre Channel service that allows data to be sent quickly to devices attached to the fabric,
without receipt confirmation.
DCC
Direct cable connection. DCC does not require network interface cards (NICs), making it relatively
inexpensive and simple; however, it provides a limited connection between two PCs, and the data
transfer rate is slower than with a true LAN.
DCE
Data Communications Equipment. Usually refers to a modem.
Glossary-6
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dedicated
simplex
defined zone
configuration
deskew
DH-CHAP
DHCP
DHCPD
digital
certificate
director
disparity
DLS
DMTF
A connection method that permits a single N_Port to simultaneously initiate a session with one N_Port
as an initiator and have a separate Class 1 connection to another N_Port as a recipient.
The set of all zone objects defined in the fabric. Can include multiple zone configurations. See also
enabled zone configuration, zone configuration.
Related to the Brocade Trunking feature. The time difference between traffic traveling over each ISL
other than the shortest ISL in the group and traffic traveling over that shortest ISL. The deskew number
corresponds to nanoseconds divided by 10. The firmware automatically sets the minimum deskew value
of the shortest ISL to 15.
Diffie-Hellman Challenge-Handshake Authentication Protocol. An implementation of CHAP using
Diffie-Hellman encryption. See also CHAP.
Dynamic Host Configuration Protocol.
Dynamic Host Configuration Protocol daemon.
An electronic document issued by a CA (certificate authority) to an entity, containing the public key and
identity of the entity. Entities in a secure fabric are authenticated based on these certificates. See also
authentication, CA, public key.
A Brocade SilkWorm 12000, 24000, or 48000 switch.
The proportion of 1s and 0s in an encoded character. “Neutral disparity” means an equal number of
each, “positive disparity” means a majority of 1s, and “negative disparity” means a majority of 0s.
Dynamic load-sharing. Dynamic distribution of traffic over available paths. Allows for recomputing of
routes when an Fx_Port or E_Port changes status.
Distributed Management Task Force.
domain
controller
A domain controller or embedded port communicates with and gets updates from other switches'
embedded ports. The well-known address is fffcdd, where dd = domain number).
domain ID
A unique identifier for all switches in a fabric, used in routing frames. Usually automatically assigned
by the principal switch but can be assigned manually. The domain ID for a Brocade SilkWorm switch
can be any integer between 1 and 239.
DTE
DWDM
Data terminal equipment. Usually refers to a terminal.
Dense wave division multiplexing. Allows more wavelengths to use the same fiber. See WDM.
E
E_D_TOV
E_Port
Error-detect timeout value. The minimum amount of time a target waits for a sequence to complete
before initiating recovery. Can also be defined as the maximum time allowed for a round-trip
transmission before an error is declared. See also R_A_TOV, RR_TOV.
Expansion port. A standard Fibre Channel mechanism that enables switches to network with each other,
creating an ISL. See also ISL.
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Glossary-7
ECCN
edge fabric
EE_Credit
EIA rack
Export classification control number. A government classification of encryption. For example, SSH is
in the high-encryption category (number 5x02) and therefore has certain restrictions regarding its
transfer.
A Fibre Channel fabric connected to an FC router via an EX_Port (where hosts and storage are attached
in a meta-SAN).
End-to-end credit. The number of receive buffers allocated by a recipient port to an originating port.
Used by Class 1 and 2 services to manage frame exchange across the fabric, between source and
destination. See also BB_Credit, end-to-end flow control.
A storage rack that meets the standards set by the Electronics Industry Association (EIA).
ELP
Exchange link parameters.
ELS
Extended link service. ELSs are sent to the destination N_Port to perform the requested function or
service. ELS is a Fibre Channel standard that is sometimes referred to as “Fibre Channel Physical
(FC_PH) ELS.”
EM
embedded port
EMI
emulex
enabled zone
configuration
Environmental monitor. Monitors FRUs and reports failures.
An embedded port (or domain controller) communicates and get updates from other switches'
embedded ports. The well-known address is fffcdd, where dd = domain number.
Electromagnetic interference.
A brand of host bus adapter.
The currently enabled configuration of zones. Only one configuration can be enabled at a time. See also
defined zone configuration, zone configuration.
end-to-end
flow control
Governs flow of Class 1 and 2 frames between N_Ports. See also EE_Credit.
entry fabric
The basic Brocade software license that allows one E_Port per switch.
EOF
End of frame. A group of ordered sets used to mark the end of a frame.
error
As it applies to the Fibre Channel industry, a missing or corrupted frame, timeout, loss of
synchronization, or loss of signal (link errors). See also loop failure.
Ethernet
EVMd
EX_Port
exchange
Glossary-8
Popular protocols for LANs.
Event management database. Delivers FDMI-related events.
A type of E_Port that connects an FC router to an edge fabric. EX_Ports limit the scope of fabric
services scope but provide device connectivity using FC-NAT.
The highest-level Fibre Channel mechanism used for communication between N_Ports. Composed of
one or more related sequences, it can work in either one or both directions.
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exported
device
A device that has been mapped between fabrics (a host or storage port in one edge fabric can be
exported to any other fabric by using LSAN zoning).
F_BSY
Fabric port busy frame. A frame issued by the fabric to indicate that a frame cannot be delivered
because the fabric or destination N_Port is busy.
F_Port
Fabric port. A port that is able to transmit under fabric protocol and interface over links. Can be used to
connect an N_Port to a switch. See also FL_Port, Fx_Port.
F_RJT
Fabric port reject frame. A frame issued by the fabric to indicate that delivery of a frame is being
denied, perhaps because a class is not supported, there is an invalid header, or no N_Port is available.
F
fabric
fabric
application
platform
Fabric
Manager
A collection of Fibre Channel switches and devices, such as hosts and storage. Also referred to as a
“switched fabric.” See also cascade, SAN, topology.
A device that enables fabric-based storage applications such as mirroring, data migration, snapshots,
and virtual tape. The Brocade SilkWorm Fabric Application Platform can run in a central location,
process data at wire-speed, and reside in existing data paths.
An optionally licensed Brocade software. Fabric Manager is a GUI that allows for fabric-wide
administration and management. Switches can be treated as groups, and actions such as firmware
downloads can be performed simultaneously.
Fabric Mode
One of two possible modes for an L_Port, in which the L_Port is connected to another port that is not
loop capable, using fabric protocol.
fabric name
The unique identifier assigned to a fabric and communicated during login and port discovery.
fabric port
count
The number of ports available for connection by nodes in a fabric.
fabric services
Codes that describe the communication to and from any well-known address.
fabric topology
The arrangement of switches that form a fabric.
Fabric Watch
An optionally licensed Brocade software. Fabric Watch can be accessed through either the command
line or Advanced Web Tools, and it provides the ability to set thresholds for monitoring fabric
conditions.
failover
Describes the Brocade SilkWorm 12000 process of one CP passing active status to another CP. A
failover is nondisruptive.
FAN
Fabric address notification. Retains the AL_PA and fabric address when a loop reinitializes, if the
switch supports FAN.
fan-in
fan-out
The ratio of hosts to storage devices; the view of the SAN from the storage port's perspective.
The ratio of storage devices to hosts; the view of the SAN from the host port's perspective.
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Glossary-9
FC router
A platform running the Brocade Fibre Channel Routing Service or FC-to-FC routing (for instance, the
SilkWorm Fabric AP7420) that enables two or more fabrics to share resources (such hosts or storage
devices) without merging those fabrics. The platform could simultaneously be used as an FC router and
as an FCIP tunnel or iSCSI gateway.
FC-0
Lowest layer of Fibre Channel transport. Represents physical media.
FC-1
Layer of Fibre Channel transport that contains the 8b/10b encoding scheme.
FC-2
Layer of Fibre Channel transport that handles framing and protocol, frame format, sequence/exchange
management, and ordered set usage.
FC-3
Layer of Fibre Channel transport that contains common services used by multiple N_Ports in a node.
FC-4
Layer of Fibre Channel transport that handles standards and profiles for mapping upper-level protocols
such as SCSI and IP onto the Fibre Channel Protocol.
FC-AL-3
FC-AV
FCC
The Fibre Channel arbitrated-loop standard defined by ANSI. Defined on top of the FC-PH standards.
Fibre Channel audio visual.
Federal Communications Commission.
FC-CT
Fibre Channel common transport.
FC-FG
Fibre Channel generic requirements.
FC-FLA
The Fibre Channel fabric loop-attach standard defined by ANSI.
FC-FS
Fibre Channel framing and signaling.
FC-GS
Fibre Channel generic services.
FC-GS-2
Fibre Channel generic services, second generation.
FC-GS-3
Fibre Channel Generic Services, third generation.
FCIP
FC-NAT
FC-PH
Fibre Channel over IP.
Fibre Channel network address translation.
The Fibre Channel physical and signaling standard for FC-0, FC-1, and FC-2 layers of the Fibre
Channel Protocol. Indicates signaling used for cable plants, media types, and transmission speeds.
FC-PH-2
Fibre Channel Physical Interface, second generation.
FC-PH-3
Fibre Channel Physical Interface, third generation.
FC-PI
FC-PLDA
Glossary-10
Fibre Channel Physical Interface standard, defined by ANSI.
The Fibre Channel Private Loop Direct Attach standard defined by ANSI. Applies to the operation of
peripheral devices on a private loop.
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FC_SB
FC_VI
Fibre Channel single bytes.
Fibre Channel virtual interface.
FCA
Flow-control acknowledgement (DLSW).
FCIA
Fibre Channel Industry Association. An international organization of Fibre Channel industry
professionals. Provides oversight of ANSI and industry-developed standards, among other tasks.
FCIP
Tunneling
Service
FCLC
FCP
The Brocade Multiprotocol SAN Routing Service that enables SANs to span longer distances than
could be supported with native Fibre Channel links. FCIP is a TCP/IP-based tunneling protocol that
allows the transparent interconnection of geographically distributed SAN islands through an IP-based
network.
Fibre Channel Loop Community.
Fibre Channel Protocol. Mapping of protocols onto the Fibre Channel standard protocols. For example,
SCSI FCP maps SCSI-3 onto Fibre Channel.
FCRP
Fibre Channel Router Protocol. A Brocade-authored protocol that enables LSAN switches to perform
routing between different edge fabrics, optionally across a backbone fabric.
FCRS
Fibre Channel Routing Service. The Brocade Multiprotocol SAN Routing Service that extends
hierarchical networking capabilities to Fibre Channel fabrics. Sometimes called “FC-to-FC routing,”
FCRS enables devices located on separate fabrics to communicate without merging the fabrics. It also
enables the creation of LSANs.
FCS
Fibre Channel switch; alternatively, Fabric Configuration Server.
FCS switch
Relates to the Brocade Secure Fabric OS feature. One or more designated switches that store and
manage security parameters and configuration data for all switches in the fabric. They also act as a set
of backup switches to the primary FCS switch. See also backbone fabric, primary FCS switch.
FC-SW-2
The second-generation Fibre Channel Switch Fabric standard defined by ANSI. Specifies tools and
algorithms for the interconnection and initialization of Fibre Channel switches to create a multiswitch
Fibre Channel fabric.
FDDI
Fibre Distributed Data Interface. An ANSI architecture for a metropolitan area network (MAN); a
network based on the use of fiber-optic cable to transmit data at 100 Mbit/sec.
FDMI
Fabric-Device Management Interface. FDMI is a database service provided by the fabric for Nx_Ports.
The primary use is by HBA devices that register information about themselves and their ports.
FFFFF5
Well-known Fibre Channel address for a Class 6 multicast server.
FFFFF6
Well-known Fibre Channel address for a clock synchronization server.
FFFFF7
Well-known Fibre Channel address for a security key distribution server.
FFFFF8
Well-known Fibre Channel address for an alias server.
FFFFF9
Well-known Fibre Channel address for a QoS facilitator.
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Glossary-11
FFFFFA
Well-known Fibre Channel address for a management server.
FFFFFB
Well-known Fibre Channel address for a time server.
FFFFFC
Well-known Fibre Channel address for a directory server.
FFFFFD
Well-known Fibre Channel address for a fabric controller.
FFFFFE
Well-known Fibre Channel address for a fabric F_Port.
FFFFFF
Well-known Fibre Channel address for a broadcast alias ID.
Fibre Channel
The primary protocol used for building SANs to transmit data between servers, switches, and storage
devices. Unlike IP and Ethernet, Fibre Channel was designed to support the needs of storage devices of
all types. It is a high-speed, serial, bidirectional, topology-independent, multiprotocol, and highly
scalable interconnection between computers, peripherals, and networks.
Fibre Channel
transport
A protocol service that supports communication between Fibre Channel service providers. See also
FSP.
FICON®
FID
FIFO
fill word
firmware
firmware
watermarking
FL_Port
A protocol used on IBM mainframes. Brocade SilkWorm switch FICON support enables a SilkWorm
fabric to transmit FICON format data between FICON-capable servers and storage.
Fabric ID. Unique identifier of a fabric in a meta-SAN.
First in, first out. Refers to a data buffer that follows the first in, first out rule.
An IDLE or ARB ordered set that is transmitted during breaks between data frames to keep the Fibre
Channel link active.
The basic operating system provided with the hardware.
A Brocade SilkWorm switch feature that prevents an incompatible version of the Brocade Fabric OS to
be downloaded to the SilkWorm 3000 series of switches.
Fabric loop port. A port that is able to transmit under fabric protocol and also has arbitrated-loop
capabilities. Can be used to connect an NL_Port to a switch. See also F_Port, Fx_Port.
flash
Programmable nonvolatile RAM (NVRAM) memory that maintains its contents without power.
FLOGI
Fabric login. The process by which an N_Port determines whether a fabric is present and, if so,
exchanges service parameters with it. See also PLOGI.
FOTP
FPD
FPGA
fractional
bandwidth
Glossary-12
Fiber Optic Test Procedure. Standards developed and published by the Electronic Industries Association
(EIA) under the EIA-RS-455 series of standards.
Field-programmable device. Interchangeable with “PLD”.
Field-programmable gate array. An FPD that allows high logic capacity.
The partial use of a link to send data back and forth, with a maximum of 254 Class 4 connections per
N_Port.
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frame
frame relay
FRU
FS
FSP
FSPF
The Fibre Channel structure used to transmit data between ports. Consists of a start-of-frame delimiter,
header, optional headers, data payload, cyclic redundancy check (CRC), and end-of-frame delimiter.
There are two types of frames: link control frames (transmission acknowledgements and so forth) and
data frames.
A protocol that uses logical channels, as used in X.25. Provides very little error-checking ability.
Discards frames that arrive with errors. Allows a certain level of bandwidth between two locations
(known as a "committed information rate": CIR) to be guaranteed by service provider. If CIR is
exceeded for short periods (known as "bursts"), the network accommodates the extra data, if spare
capacity is available. Frame relay is therefore known as "bandwidth on demand."
Field-replaceable unit. A component that can be replaced onsite.
Fibre Channel service. A service that is defined by Fibre Channel standards and exists at a well-known
address. For example, the Simple Name Server is a Fibre Channel service. See also FSP.
Fibre Channel Service Protocol. The common protocol for all fabric services, transparent to the fabric
type or topology. See also FS.
Fabric shortest path first. The Brocade routing protocol for Fibre Channel switches.
FSS
Fabric OS state synchronization. The FSS service is related to high availability (HA). The primary
function of FSS is to deliver state update messages from active components to their peer standby
components. FSS determines if fabric elements are synchronized (and thus FSS "compliant").
FTP
File Transfer Protocol.
FTS
Fiber Transport Services.
full fabric
The Brocade software license that allows multiple E_Ports on a switch, making it possible to create
multiple ISL links.
full fabric
citizenship
A loop device that has an entry in the Simple Name Server.
full duplex
A mode of communication that allows the same port to simultaneously transmit and receive frames. See
also half duplex.
Fx_Port
A fabric port that can operate as either an F_Port or FL_Port. See also F_Port, FL_Port.
G
G_Port
gateway
GBIC
Generic port. A port that can operate as either an E_Port or an F_Port. A port is defined as a G_Port
when it is not yet connected or has not yet assumed a specific function in the fabric.
Hardware that connects incompatible networks by providing translation for both hardware and
software. For example, an ATM gateway can be used to connect a Fibre Channel link to an ATM
connection.
Gigabit interface converter. A removable serial transceiver module that allows gigabaud physical-level
transport for Fibre Channel and gigabit Ethernet.
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Glossary-13
Gbit/sec
GB/sec
Gigabits per second (1,062,500,000 bits/second).
Gigabytes per second (1,062,500,000 bytes/second).
GLM
Gigabit Link Module. A semitransparent transceiver that incorporates serializing/deserializing
functions.
GMT
Greenwich Mean Time. An international time zone. Also known as "UTC."
GUI
A graphic user interface, such as Brocade Advanced Web Toolsarbitrated-loop topology and Brocade
Fabric Manager.
H
HA
half duplex
hard address
Hardware
Translative
Mode
HBA
High availability. A set of features in Brocade SilkWorm switches that is designed to provide maximum
reliability and nondisruptive replacement of key hardware and software modules.
A mode of communication that allows a port to either transmit or receive frames at any time except
simultaneously (with the exception of link control frames, which can be transmitted at any time). See
also full duplex.
The AL_PA that an NL_Port attempts to acquire during loop initialization.
A method for achieving address translation. There are two hardware translative modes available to a
QuickLoop enabled switch: Standard Translative Mode and QuickLoop Mode.
Host bus adapter. The interface card between a server or workstation bus and the Fibre Channel
network.
HCPLD
High-capacity PLD. Refers to both CPLDs and FPGAs.
header
A Fibre Channel frame has a header and a payload. The header contains control and addressing
information associated with the frame.
HiPPI
hop count
host
hot swappable
HSSDC
HSSDC-2
HTTP
Glossary-14
High-Performance Parallel Interface. An 800 Mbit/sec interface normally used in supercomputer
environments.
The number of ISLs a frame must traverse to get from its source to its destination.
A computer system that provides end users with services like computation and storage access.
A hot swappable component can be replaced under power.
High-speed serial data connection. A form factor that allows quick connections for copper interface.
A second-generation HSSDC connector.
Hypertext Transfer Protocol. The standard TCP/IP transfer protocol used on the World Wide Web.
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hub
A Fibre Channel wiring concentrator that collapses a loop topology into a physical star topology. Nodes
are automatically added to the loop when active and removed when inactive.
hunt group
A number of N_Ports registered as a single Alias_ID so that the fabric can route a word to a port that is
not busy.
HW
Hardware.
I2C
Related to internal circuitry on motherboard.
ICT
Intracircuit test.
I
ID_ID
Insistent domain ID. A parameter of the configure command in the Brocade Fabric OS.
idle
Continuous transmission of an ordered set over a Fibre Channel link when no data is being transmitted,
to keep the link active and maintain bit, byte, and word synchronization.
iFCP
Internet Fibre Channel Protocol. Supports Fibre Channel Layer 4 FCP-Over-TCP/IP. It is a gateway-togateway protocol in which TCP/IP switching and routing components enhance/replace Fibre Channel
fabric.
iFCS
IP storage fabric configuration server.
IFL
Interfabric link. A connection between a router and an edge fabric. Architecturally, these can be of type
EX_Port-to-E_Port or EX_Port-to-EX_Port.
in-band
Transmission of management protocol over the Fibre Channel.
initiator
A server or workstation on a Fibre Channel network that initiates communications with storage devices.
See also target.
Insistent
Domain ID
Mode
Sets the domain ID of a switch as insistent, so that it remains the same over reboots, power cycles,
failovers, and fabric reconfigurations. This mode is required to support FICON® traffic.
integrated
fabric
The fabric created by a Brocade SilkWorm 6400, consisting of six SilkWorm 2250 switches cabled
together and configured to handle traffic seamlessly as a group.
intercabinet
intermix
interswitch
link
intracabinet
IOCTL
A specification for copper cabling that allows up to 33-meter distances between cabinets.
Allows any unused bandwidth in a Class 1 connection.
See ISL.
A specification for copper cabling that allows up to a 13-meter (42-foot) distance within a single
cabinet.
I/O control.
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Glossary-15
IOD
In-order delivery. A parameter that, when set, guarantees that frames are either delivered in order or
dropped.
IP
Internet Protocol. The addressing part of TCP.
IPI
Intelligent Peripheral Interface.
IQN
iSCSI qualified name.
ISC
Internet Software Consortium.
iSCSI
iSCSI Gateway
Service
ISL
ISL oversubscription ratio
isolated
E_Port
ISP
IU
Internet Small Computer Systems Interface. A protocol that defines the processes for transferring block
storage applications over TCP/IP networks by encapsulating SCSI commands into TCP and
transporting them over the network via IP.
The Brocade multiprotocol SAN routing service that maps the FCP protocol to the IP transport. This
service projects iSCSI hosts onto the backbone fabric of a gateway switch.
Interswitch link. A Fibre Channel link from the E_Port of one switch to the E_Port of another. See also
cascade, E_Port.
The ratio of the number of free ports (non-ISL) to the number of ISLs on a switch.
An E_Port that is online but not operational due to overlapping domain IDs or nonidentical parameters
(such as E_D_TOVs). See also E_Port.
Internet service provider.
Information unit. A set of information as defined by either an upper-level process protocol definition or
upper-level protocol mapping.
J
Jaycor
JBOD
jitter
A brand of host bus adapter.
"Just a bunch of disks." Indicates a number of disks connected in a single chassis to one or more
controllers. See also RAID.
A deviation in timing for a bit stream as it flows through a physical medium.
K
K28.5
key
Glossary-16
A special 10-bit character used to indicate the beginning of a transmission word that performs Fibre
Channel control and signaling functions. The first seven bits of the character are the comma pattern. See
also comma.
A string of data (usually a numeric value) shared between two entities and used to control a
cryptographic algorithm. Usually selected from a large pool of possible keys to make unauthorized
identification of the key difficult. See also key pair.
Brocade SilkWorm 4100 Hardware Reference Manual
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key pair
In public key cryptography, a pair of keys consisting of an entity's public and private key. The public
key can be publicized, but the private key must be kept secret. See also public key cryptography.
L
L_Port
Loop port. A node port (NL_Port) or fabric port (FL_Port) that has arbitrated-loop capabilities. An
L_Port can be in either Fabric Mode or Loop Mode.
LAN
Local area network. A network in which transmissions typically take place over fewer than 5 kilometers
(3.4 miles).
latency
The time required to transmit a frame. Together, latency and bandwidth define the speed and capacity of
a link or system.
LED
Light-emitting diode. Used to indicate the status of elements on a switch.
LIFA
Loop-initialization fabric-assigned frame. Contains a bitmap of all fabric-assigned AL_PAs and is the
first frame transmitted in the loop initialization process after a temporary loop master has been selected.
LIHA
Loop-initialization hard-assigned frame. A hard-assigned AL_PA that is indicated by a bit set and is the
third frame transmitted in the loop initialization process after a temporary loop master has been
selected.
LILP
Loop-initialization loop-position frame. The final frame transmitted in a loop initialization process. A
returned LIRP contains an accumulation of all of the AL_PA position maps. This allows loop members
to determine their relative loop position. This is an optional frame and is not transmitted unless the
LIRP is also transmitted.
link control
facility
Link Services
LIP
A termination, handling physical and logical control of the Fibre Channel link for each mode.
A protocol for link-related actions.
Loop initialization primitive. The signal used to begin initialization in a loop. Indicates either loop
failure or node resetting.
LIPA
Loop-initialization previously assigned. The device marks a bit in the bitmap if it did not log in with the
fabric in a previous loop initialization.
LIRP
Loop-initialization report position frame. The first frame transmitted in the loop initialization process
after all L_Ports have selected an AL_PA. The LIRP gets transmitted around the loop so all L_Ports can
report their relative physical position. This is an optional frame.
LISA
Loop-initialization soft-assigned frame. The fourth frame transmitted in the loop initialization process
after a temporary loop master has been selected. L_Ports that have not selected an AL_PA in a LIFA,
LIPA, or LIHA frame select their AL_PA here.
LISM
Loop-initialization select master frame. The first frame transmitted in the initialization process when
L_Ports select an AL_PA. LISM is used to select a temporary loop master or the L_Port that will
subsequently start transmission of the LIFA, LIPA, LIHA, LISA, LIRP, or LILP frames.
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Glossary-17
LM_TOV
login server
Loom
Loop master timeout value. The minimum time that the loop master waits for a loop initialization
sequence to return.
The unit that responds to login requests.
The code name given to the second-generation Brocade Fabric ASIC. This is the ASIC used in the
SilkWorm 2xxx series of switches.
loop circuit
A temporary bidirectional communication path established between L_Ports.
loop failure
Loss of signal within a loop for any period of time, or loss of synchronization for longer than the
timeout value.
Loop_ID
loop
initialization
Loop Mode
looplet
A hexadecimal value representing one of the 127 possible AL_PA values in an arbitrated loop.
The logical procedure used by an L_Port to discover its environment. Can be used to assign AL_PA
addresses, detect loop failure, or reset a node.
One of two possible modes for an L_Port, in which the L_Port is in an arbitrated loop, using loop
protocol. An L_Port in Loop Mode can also be in Participating Mode or Nonparticipating Mode.
A set of devices connected in a loop to a port that is a member of another loop.
LPB
Loop port bypass. A primitive sequence transmitted by an L_Port to bypass one or all L_Ports to which
it is directed. It is used only in arbitrated loops.
LPE
Loop port enable. A primitive sequence transmitted by an L_Port to enable one or all L_Ports that have
been bypassed with the LPB. It is used only in arbitrated loops.
LPSM
LR
Loop Port State Machine. Logic that monitors and performs the tasks required for initialization and
access to the loop. It is maintained by an L_Port to track behavior through different phases of loop
operations. Alternatively, the logical entity that performs arbitrated-loop protocols and defines the
behavior of L_Ports when they require access to an arbitrated loop.
Link reset. A primitive sequence used during link initialization between two N_Ports in point-to-point
topology or an N_Port and an F_Port in fabric topology. The expected response is an LRR.
LRR
Link reset response. A primitive sequence during link initialization between two N_Ports in point-topoint topology or an N_Port and an F_Port in fabric topology. It is sent in response to an LR and expects
a response of Idle.
LSAN
Logical storage area network. An LSAN enables device and storage connectivity that spans two or more
fabrics. The path between devices in an LSAN can be local to a fabric or cross one or more FC routers
and one or more backbone fabrics.
LSAN zone
The mechanism by which LSANs are administered. An FC router attached to two fabrics will “listen”
for the creation of matching LSAN zones on both fabrics. If this occurs, it will create phantom domains
and FC-NAT entries as appropriate, and insert entries for them into the name servers on the fabrics.
LSAN zones are compatible with all standard zoning mechanisms.
LWL
Glossary-18
Long wavelength. A type of fiber optic cabling that is based on 1300-mm lasers and supports link
speeds of 1.0625 Gbit/sec. Can also refer to the type of GBIC or SFP. See also SWL.
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M
MALLOC
MAN
MB/sec
Mbit/sec
Memory allocation. Usually relates to buffer credits.
Metropolitan area network.
Megabytes per second.
Megabits per second.
meta-SAN
The collection of all devices, switches, edge and backbone fabrics, LSANs, and FC routers that make up
a physically connected but logically partitioned storage network. LSANs span between edge fabrics
using FC routers. In a data network, this would simply be called “the network.” However, an additional
term is required to specify the difference between a single-fabric network (“SAN”), a multifabric
network without cross-fabric connectivity (“dual-redundant fabric SAN”), and a multifabric network
with connectivity (“meta-SAN”).
metric
A relative value assigned to a route to aid in calculating the shortest path (1000 @ 1 Gbit/sec, 500 @ 2
Gbits/sec).
MIA
Media interface adapter. A device that converts optical connections to copper ones, and vice-versa.
MIB
Management Information Base. An SNMP structure to help with device management, providing
configuration and device information.
MMF
Multimode fiber. See SWL.
MOF
Managed Object Format file.
MRK
Mark primitive signal. Used only in arbitrated loop, MRK is transmitted by an L_Port for
synchronization and is vendor specific.
MS
Management Server. The Management Server allows a storage area network (SAN) management
application to retrieve information and administer the fabric and interconnected elements, such as
switches, servers, and storage devices. The MS is located at the Fibre Channel well-known address
FFFFFAh.
MSD
Management Server daemon. Monitors the MS. Includes the Fabric Configuration Service and the
Unzoned Name Server.
MSRS
Multiprotocol SAN Routing Services. An optionally licensed software bundle available on certain
Brocade platforms, such as the SilkWorm Fabric AP7420, that includes the Fibre Channel Routing
Service, the iSCSI Gateway Service, and the FCIP Tunneling Service.
MTBF
Mean time between failures. An expression of time, indicating the longevity of a device.
multicast
multimode
The transmission of data from a single source to multiple specified N_Ports (as opposed to all the ports
on the network). See also broadcast, unicast.
A fiber optic cabling specification that allows up to 500 meters between devices.
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Glossary-19
N
N_Port
Name Server
NAS
NDMP
NIC
NL_Port
node
Node port. A port on a node that can connect to a Fibre Channel port or to another N_Port in a point-topoint connection. See also NL_Port, Nx_Port.
Simple Name Server (SNS). A switch service that stores names, addresses, and attributes for up to 15
minutes and provides them as required to other devices in the fabric. SNS is defined by Fibre Channel
standards and exists at a well-known address. Also referred to as "directory service."
Network-attached storage. A disk array connected to a controller that gives access via a LAN.
Network Data Management Protocol. Used for tape backup without using server resources.
Network interconnect card.
Node loop port. A node port that has arbitrated-loop capabilities. Used to connect an equipment port to
the fabric in a loop configuration through an FL_Port. See also N_Port, Nx_Port.
A Fibre Channel device that contains an N_Port or NL_Port.
node count
The number of nodes attached to a fabric.
node name
The unique identifier for a node, communicated during login and port discovery.
Nonparticipating Mode
A mode in which an L_Port in a loop is inactive and cannot arbitrate or send frames but can retransmit
received transmissions. This mode is entered if there are more than 127 devices in a loop and an AL_PA
cannot be acquired. See also L_Port, Participating Mode.
NOS
Not operational. The NOS primitive sequence is transmitted to indicate that the FC_Port transmitting
the NOS has detected a link failure or is offline, waiting for the offline sequence (OLS) to be received.
NR_Port
NS
A normal E_Port used to connect an FC Router to a backbone fabric.
Name Server. The service provided by a fabric switch that stores names, addresses, and attributes
related to Fibre Channel objects. Can cache information for up to 15 minutes. Also known as "Simple
Name Server" or as a "directory service." See also Simple Name Server (SNS).
NSCAM
Name Server Cache Manager. Updates the Name Server (NS) databases across switches as a
background task.
Nx_Port
A node port that can operate as either an N_Port or NL_Port.
O
OFC
Open fiber control. A method used to enable and disable laser signaling for higher-intensity laser
transceivers.
OLS
Primitive sequence offline.
OLTP
Glossary-20
Online transaction processing.
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ON
OPN
ordered set
Offline notification. Refers to an ELS field that appears in portlogdump command output.
Open primitive signal. Applies only to arbitrated loop; sent by an L_Port that has won the arbitration
process to open communication with one or more ports on the loop.
A transmission word that uses 8b/10b mapping and begins with the K28.5 character. Ordered sets occur
outside of frames and include the following items:
Frame delimiters. Mark frame boundaries and describe frame contents.
Primitive signals. Indicate events.
Primitive sequences. Indicate or initiate port states.
Ordered sets are used to differentiate Fibre Channel control information from data frames and to
manage frame transport.
originator
out-of-band
oversubscription
The Nx_Port that originated an exchange.
Transmission of management protocol outside of the Fibre Channel network, usually over Ethernet.
A situation in which more nodes could potentially contend for a resource than the resource could
simultaneously support (typically an ISL). Oversubscription could be a desirable attribute in fabric
topology, as long as it does not produce unacceptable levels of congestion.
OX_ID
Originator ID or exchange ID. Refers to the exchange ID assigned by the originator port.
packet
A set of information transmitted across a network. See also frame.
P
PAL
parallel
Participating
Mode
passive
copper
path selection
payload
PBC
PCBA
PCM
Programmable Array Logic. A relatively small FPD.
The simultaneous transmission of data bits over multiple lines.
A mode in which an L_Port in a loop has a valid AL_PA and can arbitrate, send frames, and retransmit
received transmissions. See also L_Port, Nonparticipating Mode.
A low-cost copper Fibre Channel connection, allowing distances up to 13 meters between devices.
The selection of a transmission path through the fabric. Brocade switches use the FSPF protocol. See
also FSPF.
A Fibre Channel frame has a header and a payload. The payload contains the information being
transported by the frame; it is determined by the higher-level service or FC_4 upper-level protocol.
There are many different payload formats, based on protocol.
Port bypass circuit. A circuit in hubs or a disk enclosure to open or close a loop to add or remove nodes.
Printed circuit board assembly.
Pulse-code modulation. A standard method of encoding analog audio signals in digital form.
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Glossary-21
Performance
Monitoring
A Brocade SilkWorm switch feature that monitors port traffic and includes frame counters, SCSI read
monitors, SCSI write monitors, and other types of monitors.
persistent
error log
Error messages of a high enough level (by default, Panic or Critical) are saved to flash memory on the
switch instead of to RAM. These messages are saved over reboots and power cycles, constituting the
persistent error log. Note that each CP on a SilkWorm 12000 has its own unique persistent error log.
phantom
address
An AL_PA value that is assigned to a device that is not physically in the loop. Also known as "phantom
AL_PA."
phantom
device
A device that is not physically in an arbitrated-loop but is logically included through the use of a
phantom address.
phantom
domain
See xlate domain.
PID
Port identifier. See also core PID.
PKI
Public key infrastructure. An infrastructure that is based on public key cryptography and CA (certificate
authority) and that uses digital certificates. See also CA, digital certificate, public key cryptography.
PKI
certification
utility
Public key infrastructure certification utility. A utility that makes it possible to collect certificate
requests from switches and to load certificates to switches. See also digital certificate, PKI.
PLA
Programmable logic array. A small FPD.
PLD
Programmable logic device. Interchangeable with “FPD”.
PLDA
PLOGI
point-to-point
Private loop direct-attached. A technical report specifying a logical loop.
Port login. The port-to-port login process by which initiators establish sessions with targets. See also
FLOGI.
A Fibre Channel topology that employs direct links between each pair of communicating entities. See
also topology.
port
In a Brocade SilkWorm switch environment, an SFP or GBIC receptacle on a switch to which an optic
cable for another device is attached.
port address
In Fibre Channel technology, the port address is defined in hexadecimal. In the Brocade Fabric OS, a
port address can be defined by a domain and port number combination or by area number. In an ESCON
Director, an address used to specify port connectivity parameters and to assign link addresses for
attached channels and control units.
port cage
The metal casing extending out of the optical port on the switch, into which the SFP can be inserted.
port card
A hardware component that provides a platform for field-replaceable, hot swappable ports.
port log
Glossary-22
A record of all activity on a switch, kept in volatile memory.
Brocade SilkWorm 4100 Hardware Reference Manual
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port log dump
port name
port swapping
port_name
POST
PPP
primary FCS
switch
A view of what happens on a switch, from the switch's point of view. The portlogdump command is
used to read the port log.
A user-defined alphanumeric name for a port.
Port swapping is the ability to redirect a failed port to another port. This feature is available in Fabric
OS v4.1.0 and higher.
The unique identifier assigned to a Fibre Channel port. Communicated during login and port discovery.
Power-on self-test. A series of tests run by a switch after it is turned on.
Point-to-Point Protocol.
Relates to the Brocade Secure Fabric OS feature. The primary fabric configuration server switch
actively manages security and configurations for all switches in the fabric. See also backbone fabric,
FCS switch.
primitive
sequence
An ordered set that is transmitted repeatedly and continuously. Primitive sequences are transmitted to
indicate specific conditions within or conditions encountered by the receiver logic of an FC_Port. See
OLS, NOS.
primitive
signals
An ordered set that indicates actions or events and requires just one occurrence to trigger a response.
IDLE and R_RDY are used in all three topologies: ARB, OPN, and CLS. MRK is used in arbitrated
loop.
principal
switch
The first switch to boot up in a fabric. Ensures unique domain IDs among roles.
private device
private key
A device that supports arbitrated-loop protocol and can interpret 8-bit addresses but cannot log in to the
fabric.
The secret half of a key pair. See also key, key pair.
private loop
An arbitrated loop that does not include a participating FL_Port.
private loop
device
A device that supports a loop and can understand 8-bit addresses but does not log in to the fabric.
private
NL_Port
An NL_Port that communicates only with other private NL_Ports in the same loop and does not log in
to the fabric.
protocol
A defined method and set of standards for communication. Determines the type of error-checking, the
data-compression method, how sending devices indicate an end of message, and how receiving devices
indicate receipt of a message.
pstate
PSU
public device
Port State Machine.
Power supply unit.
A device that supports arbitrated-loop protocol, can interpret 8-bit addresses, and can log in to the
fabric.
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Glossary-23
public key
public key
cryptography
public loop
public NL_Port
The public half of a key pair. See also key, key pair.
A type of cryptography that uses a key pair, with the two keys in the pair called at different points in the
algorithm. The sender uses the recipient's public key to encrypt the message, and the recipient uses the
recipient's private key to decrypt it. See also key pair, PKI.
An arbitrated loop that includes a participating FL_Port and can contain both public and private
NL_Ports.
An NL_Port that logs in to the fabric, can function within either a public or a private loop, and can
communicate with either private or public NL_Ports.
Q
QLA
QLFA
QoS
quad
queue
A type of Fibre Channel controller.
QuickLoop Fabric Assist. Arbitrated-loop technology.
Quality of service.
A group of four adjacent ports that share a common pool of frame buffers.
A mechanism for each AL_PA address that allows for collecting frames prior to sending them to the
loop.
QuickLoop
A Brocade software product that allows multiple ports on a switch to create a logical loop. Devices
connected via QuickLoop appear to each other as if they are on the same arbitrated loop.
QuickLoop
Mode
Allows initiator devices to communicate with private or public devices that are not in the same loop.
R
R_A_TOV
Resource allocation timeout value. The maximum time a frame can be delayed in the fabric and still be
delivered. See also E_D_TOV, RR_TOV.
R_CTL
Route control. The first 8 bits of the header, which defines the type of frame and its contents.
R_RDY
Receiver ready. A primitive signal indicating that the port is ready to receive a frame.
R_T_TOV
Receiver transmitter timeout value, used by receiver logic to detect loss of synchronization between
transmitters and receivers.
radius
The greatest "distance" between any edge switch and the center of a fabric. A low-radius network is
better than a high-radius network.
Glossary-24
RAID
Redundant array of independent disks. A collection of disk drives that appear as a single volume to the
server and are fault tolerant through mirroring or parity checking. See also JBOD.
RAIT
Redundant array of independent tapes.
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RCS
Reliable Commit Service. Refers to Brocade-specific ILS command code.
RCS_SFC
RCS Stage Fabric Config. Refers to Brocade-specific ILS command code.
receiver
redundancy
remote switch
repeater
request rate
resilience
resilient core/
edge topology
responder
retimer
return loss
RLS
route
routing
RR_TOV
A device that performs detection and signal processing.
Having multiple occurrences of a component to maintain high availability (HA).
An optional product for long-distance fabrics, requiring a Fibre Channel-to-ATM or SONET gateway.
A circuit that uses a recovered clock to regenerate and transmit an outbound signal.
The rate at which requests arrive at a servicing entity.
A fabric's ability to adapt to or tolerate a failure of a component within the fabric.
Two or more switches acting as a core to interconnect multiple edge switches. Nodes attach to the edge
switches.
The N_Port with which an exchange originator attempts to communicate.
A circuit that uses an independent clock to generate outbound signals.
The ratio (expressed in dB) of incident power to reflected power, when a component or assembly is
introduced into a link or system. Can refer to optical power or to electrical power in a specified
frequency range.
Read Link Status.
As it applies to a fabric, the communication path between two switches. Might also apply to the specific
path taken by an individual frame, from source to destination. See also FSPF.
The assignment of frames to specific switch ports, according to frame destination.
Resource recovery timeout value. The minimum time a target device in a loop waits after an LIP before
logging out an SCSI initiator. See also E_D_TOV, R_A_TOV.
RSCN
Registered state change notification. A switch function that allows notification of fabric changes to be
sent from the switch to specified nodes. The fabric controller issues RSCN requests to N_Ports and
NL_Ports, but only if they have registered to be notified of state changes in other N_Ports and
NL_Ports. This registration is performed via the State Change Registration (SCR) Extended Link
Service. An N_Port or NL_Port can issue an RSCN to the fabric controller without having completed
SCR with the fabric controller.
RTWR
Reliable transport with response. Might appear as a task in portlogdump command output.
running
disparity
A binary parameter indicating the cumulative disparity (positive or negative) of all previously issued
transmission characters.
RW
Read/write. Refers to access rights.
RX
Receiving frames.
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Glossary-25
RX_ID
Responder exchange identifier. A 2-byte field in the frame header that can be used by the responder of
the exchange to identify frames as being part of a particular exchange.
S
S_ID
Source ID. Refers to the native port address (24 bit address).
SAN
Storage area network. A network of systems and storage devices that communicate using Fibre Channel
protocols. See also fabric.
SAN
architecture
SAN port
count
SCA
The overall design of a storage network solution, which includes one or more related fabrics, each of
which has a topology.
The number of ports available for connection by nodes in the entire SAN.
Type of connector.
scalability
One of the properties of a SAN: the size to which a SAN topology can grow port and switch counts with
ease.
SCC
SC connector. An SC connector is a fiber-optic cable connector that uses a push-pull latching
mechanism similar to common audio and video cables. For bidirectional transmissions, two fiber cables
and two SC connectors (dual SC) are generally used. SC is specified by the TIA as FOCIS-3.
SCN
State change notification. Used for internal state change notifications, not external changes. This is the
switch logging that the port is online or is an Fx_Port, not what is sent from the switch to the Nx_Ports.
SCR
State change registration. Extended Link Service (ELS) requests the fabric controller to add the N_Port
or NL_Port to the list of N_Ports and NL_Ports registered to receive the Registered State Change
Notification (RSCN) Extended Link Service.
SCSI
Small Computer Systems Interface. A parallel bus architecture and a protocol for transmitting large data
blocks to a distance of 15 to 25 meters.
SCSI-2
An updated version of the SCSI bus architecture.
SCSI-3
An SCSI standard that defines transmission of SCSI protocol data over different kinds of links.
SDRAM
sectelnet
Secure Fabric
OS
security policy
SEQ_ID
Glossary-26
The main memory for a switch.
A protocol similar to telnet but with encrypted passwords for increased security.
An optionally licensed Brocade feature that provides advanced, centralized security for a fabric.
Rules that determine how security is implemented in a fabric. Security policies can be customized
through Brocade Secure Fabric OS or Brocade Fabric Manager.
Sequence identifier. A 1-byte field in the frame header change to identify the frames as being part of a
particular exchange sequence between a pair of ports.
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sequence
A group of related frames transmitted in the same direction between two N_Ports.
sequence
initiator
The N_Port that begins a new sequence and transmits frames to another N_Port.
sequence
recipient
Serializing/deserializing circuitry. A circuit that converts a serial bit stream into parallel characters, and
vice-versa.
serial
server
service rate
The transmission of data bits in sequential order over a single line.
A computer that processes end-user applications or requests.
The rate at which an entity can service requests. See also request rate.
SES
SCSI Enclosure Services. A subset of the SCSI protocol used to monitor temperature, power, and fan
status for enclosed devices.
SFF
Small-form-factor. An industry term for a smaller transceiver. See SFP.
SFP
Small-form-factor pluggable. A transceiver used on 2 GB/sec switches that replaces the GBIC.
SFP cable
SI
SilkWorm
A cable specifically designed for use with an SFP. Not compatible with GBICs.
Sequence initiative.
The brand name for the Brocade family of switches.
Simple Name
Server (SNS)
A switch service that stores names, addresses, and attributes for up to 15 minutes and provides them as
required to other devices in the fabric. SNS is defined by Fibre Channel standards and exists at a wellknown address. Also referred to as “directory service” or “name server.”
Single CP
Mode
The -s option of the Fabric OS firmwaredownload command. Using firmwaredownload -s enables
Single CP Mode. In the SilkWorm 12000, Single CP Mode enables a user to upgrade a single CP and to
select full install, autoreboot, and autocommit.
Single Mode
S-Link Service
SLAP
SLP
SMDS
SMF
SMI
The fiber-optic cabling standard for devices up to 10 km apart.
Facilities used between an N_Port and the fabric, or between two N_Ports, for login, sequence/
exchange management, and maintaining connections.
Switch Link Authentication Protocol.
Service Location Protocol.
Switched Multimegabit Data Service. A good protocol for interconnecting LANs; however, SMDS has
less error-checking capability than Frame Relay.
Single-mode fiber. See LWL.
Storage Management Initiative. A broad-based initiative sponsored by the Storage Networking Industry
Association (SNIA) to standardize all aspects of storage management for multivendor storage
networking products.
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Glossary-27
SMI
SMI-S
SNA/SDLC
SNMP
Structure of management information. A notation for setting or retrieving SNMP management
variables.
Storage Management Initiative Specification. Defines the interface that allows storage management
systems to manage and monitor storage area network (SAN) resources.
Systems Network Architecture/Synchronous Data Link Control. A structure for transferring data among
a variety of computing platforms.
Simple Network Management Protocol. An Internet management protocol that uses either IP for
network-level functions and UDP for transport-level functions, or TCP/IP for both. Can be made
available over other protocols, such as UDP/IP, because it does not rely on the underlying
communication protocols. See also community (SNMP).
SNS
Simple Name Server.
SOF
Start of frame. A group of ordered sets that marks the beginning of a frame and indicates the class of
service the frame will use.
soft zone
SoIP
SONET
special
character
A zone consisting of zone members that are made visible to each other through client service requests.
Typically, soft zones contain zone members that are visible to devices using Name Server exposure of
zone members. The fabric does not enforce a soft zone. Note that well-known addresses are implicitly
included in every zone.
SCSI-over-IP.
Synchronous optical network. A standard for optical networks that provides building blocks and
flexible payload mappings.
A 10-bit character that does not have a corresponding 8-bit value but is still considered valid. The
special character is used to indicate that a particular transmission word is an ordered set. This is the only
type of character to have five 1s or 0s in a row.
SPLD
Simple PLD. Usually, either a PLA or PAL.
SPOF
Single point of failure. Any component in a SAN whose malfunction could bring down the entire SAN.
SQ_ID
Sequence ID. Used to identify and track all of the frames within a sequence between a source (S_ID)
and destination (D_ID) port pair.
SRM
Storage resource management. The management of disk volumes and file resources.
SSH
Secure shell. Used starting in Brocade Fabric OS v4.1 to support encrypted telnet sessions to the switch.
SSH encrypts all messages, including the client sending the password at login.
SSL
Secure sockets layer.
Standard
Translative
Mode
stealth mode
Glossary-28
Allows public devices to communicate with private devices that are directly connected to the fabric.
A method used in some switches to simulate Brocade switches using QuickLoop.
Brocade SilkWorm 4100 Hardware Reference Manual
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Stitch
storage
store-andforward
striping
switch
switch name
switch port
switch-toswitch
authentication
SWL
syslog
The code name given to the first-generation Brocade Fabric ASIC. This is the ASIC that is used in the
SilkWorm 1xxx series of switches.
A device used to store data, such as a disk or tape.
A switching technique that requires buffering an entire frame before making a routing decision.
A RAID technique for writing a file to multiple disks on a block-by-block basis, with or without parity.
A fabric device providing bandwidth and high-speed routing of data via link-level addressing.
The arbitrary name assigned to a switch.
A port on a switch. Switch ports can be E_Ports, F_Ports, or FL_Ports.
The process of authenticating both switches in a switch-to-switch connection using digital certificates.
See also authentication, digital certificate.
Short wavelength. A type of fiber optic cabling that is based on 850 mm lasers and supports 1.0625 GB/
sec link speeds. Can also refer to the type of GBIC or SFP. See also LWL.
Syslog daemon. Used to forward error messages.
T
T10
A standards committee chartered with creating standards for SCSI.
T11
A standards committee chartered with creating standards for Fibre Channel.
tachyon
target
TC
TCP/IP
telnet
A chip that supports FC-0 through FC-2 on a single chip.
A storage device on a Fibre Channel network. See also initiator.
Track changes.
Transmission Control Protocol Internet Protocol.
A virtual terminal emulation used with TCP/IP. “Telnet” is sometimes used as a synonym for the
Brocade Fabric OS CLI.
tenancy
The time from when a port wins arbitration in a loop until the same port returns to the monitoring state.
Also referred to as “loop tenancy.”
throughput
The rate of data flow achieved within a cable, link, or system. Usually measured in bps (bits per second
or b/sec). See also BB fabric.
tiering
The process of grouping particular SAN devices by function and then attaching these devices to
particular switches or groups of switches based on that function.
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Glossary-29
Time Server
topology
A Fibre Channel service that allows for the management of all timers.
As it applies to Fibre Channel technology, the configuration of the Fibre Channel network and the
resulting communication paths allowed. There are three possible topologies:
Point to point. A direct link between two communication ports.
Switched fabric. Multiple N_Ports linked to a switch by F_Ports.
Arbitrated loop. Multiple NL_Ports connected in a loop.
TPC
track changes
transceiver
translate
domain
Translative
Mode
Third-party copy. A protocol for performing tape backups without using server resources.
A Brocade Fabric OS feature that can be enabled to report specific activities (for example, logins,
logouts, and configuration task changes). The output from the track-changes feature is dumped to the
error log for the switch.
A device that converts one form of signaling to another for transmission and reception; in fiber optics,
optical to electrical.
See xlate domain.
A mode in which private devices can communicate with public devices across the fabric.
transmission
character
A 10-bit character encoded according to the rules of the 8b/10b algorithm.
transmission
word
A group of four transmission characters.
trap (SNMP)
trunking
trunking group
trunking ports
TS
TTL
tunneling
TX
Glossary-30
The message sent by an SNMP agent to inform the SNMP management station of a critical error. See
also SNMP.
In Fibre Channel technology, a feature that enables distribution of traffic over the combined bandwidth
of up to four ISLs between adjacent switches, while preserving in-order delivery.
A set of up to four trunked ISLs.
The ports in a set of trunked ISLs.
Time Server.
Time-to-live. The number of seconds an entry exists in cache before it expires.
A technique for enabling two networks to communicate when the source and destination hosts are both
on the same type of network but are connected by a different type of network.
Transmit.
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U
U_Port
UDP
UL
ULP
ULP_TOV
unicast
UTC
Universal port. A switch port that can operate as a G_Port, E_Port, F_Port, or FL_Port. A port is defined
as a U_Port when it is not connected or has not yet assumed a specific function in the fabric.
User Datagram Protocol. A protocol that runs on top of IP and provides port multiplexing for upperlevel protocols.
Underwriter's Laboratories. A product-safety testing and certification organization; independent, notfor-profit.
Upper-level protocol. The protocol that runs on top of Fibre Channel. Typical upper-level protocols are
SCSI, IP, HIPPI, and IPI.
Upper-level timeout value. The minimum time that an SCSI ULP process waits for SCSI status before
initiating ULP recovery.
The transmission of data from a single source to a single destination. See also broadcast, multicast.
Universal Time Conversion. Also known as “Coordinated Universal Time,” which is an international
standard of time. UTC is 8 hours behind Pacific Standard Time and 5 hours behind Eastern Standard
Time. See also GMT.
V
W
WAN
WAN_TOV
watchdog
WDM
Wide area network.
Wide area network timeout value.
A software daemon that monitors Fabric OS modules on the kernel.
Wavelength division multiplexer. Allows multiple wavelengths to be combined or filtered on a single
cable.
well-known
address
As it pertains to Fibre Channel technology, a logical address defined by Fibre Channel standards as
assigned to a specific function and stored on the switch.
workstation
A computer used to access and manage the fabric. Also referred to as a “management station” or “host.”
WTV
WWN
Write timeout value. Refers to an ELS field that appears in portlogdump command output.
World Wide Name. An identifier that is unique worldwide. Each entity in a fabric has a separate WWN.
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Glossary-31
X
X.25
xlate domain
A protocol that uses logical channels. X.25 allows high-quality communications between computers
and can accommodate “noisy” data communications through error-detection and -correction
(retransmission) algorithms.
Translate domain. A router virtual domain that represents an entire fabric. Device connectivity can be
achieved from one fabric to another, over the router and through this virtual domain, without merging
the two fabrics. Also known as “phantom domains.”
Y
Z
zone
A set of devices and hosts attached to the same fabric and configured as being in the same zone. Devices
and hosts within the same zone have access to others in the zone but are not visible to any outside the
zone.
zone
configuration
A specified set of zones. Enabling a configuration enables all zones in that configuration. See also
defined zone configuration, enabled zone configuration.
zoning
A feature in fabric switches or hubs that allows segmentation of a node by physical port, name, or
address.
Glossary-32
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Index
Symbols
D
(IP over Fibre Channel (FC-IP)
A-5
diagnostic tests
about 3-7
A
E
air flow
direction through switch
EIA rack
requirements A-2
EMC specifications A-12
A-1
B
environmental requirements
bandwidth, aggregate
European Council directives, compliance with
A-5
Brocade applications supported
Brocade ISL Trunking
about 1-3
cabling requirements
F
2-6, 2-7, 2-10
fan assembly
general information A-1
Fbre Channel classes, supported
FCC compliance
A-5
A-9
Fibre Channel Association x
A-10
certifications, regulatory
A-10
1-6
C
CE compliance
A-3, A-4
A-12
class
Fibre Channel classes supported
laser product class A-11
color-coded ports 1-3
A-5
compliance
general regulatory A-9
laser safety standards A-11
components, switch A-1
configuring
IP address 2-5
terminal emulator application 2-4
Brocade SilkWorm 4100 Hardware Reference Manual
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Fibre Channel ports
specifications A-6
front panel
LEDs 3-2
I
immunity, electromagnetic A-5
installation
installing the switch as a stand-alone unit
IP address, configuring 2-5
2-3
Index-1
L
R
laser
compliance with standards
product class A-11
latency A-5
rack
A-11
LEDs
interpreting 3-1
on front panel 3-2
on nonport side 3-4
M
maintenance, switch 3-6
monitoring
through LED activity
requirements
airflow A-2
electrical A-2
environmental A-2, A-4
facility A-2
rack A-2
shock and vibration A-4
temperature and humidity A-4
RJ-45 connector A-1
RS-232 connector
3-1
safety specifications A-12
nonport side
LED 3-4
P
physical dimensions of switch
port
color-coding 1-3
configurable types A-5
Ethernet port A-1
Fibre Channel port A-6
serial port A-1, A-7
POST
duration A-8
error messages 3-6, A-8
interpreting 3-6
specifications A-8
power supply
general information A-1
specifications A-3
protocol, ANSI A-5
A-1, A-7
S
N
Index-2
requirements A-2
regulatory compliance A-9
A-2
serial port
specifications A-7
specifications
EMC A-12
Fibre Channel ports A-6
general A-5
power supply A-3
regulatory A-9
safety A-12
serial port A-7
switch
components A-1
maintenance 3-6
physical dimensions A-2
weight A-2
T
temperature requirements
A-4
terminal emulator application, configuring
tests, diagnostic
2-4
3-7
trunking
about 1-3
cabling requirements
2-6, 2-7, 2-10
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V
VCCI statement
A-10
W
weight, switch
A-2
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Index-3