Cisco Catalyst WS-C2960PD-8TT-L-M

Q&A
Cisco Catalyst 2960 Series Switches
Product Overview
Q. What is the Cisco Catalyst 2960PD-8TT-L compact switch?
A. The Cisco® Catalyst® 2960PD-8TT-L switch has eight 10/100 Mbps ports and receives power
over the Gig uplink port from an upstream power over Ethernet (PoE) switch. The Cisco
Catalyst 2960 powered device (PD) switch is ideal for deployments outside the wiring closet
such as conference rooms and classrooms with spacing and wiring constraints.
Q. How can the Cisco Catalyst 2960PD-8TT-L compact switch be powered?
A. The Cisco Catalyst 2960PD-8TT-L can be powered by another PoE switch, a power adaptor or
power injectors that support 802.3af, including AIR-PWRINJ4. The Cisco Catalyst 2960PD8TT-L switch prioritizes the power adaptor over PoE input when both the power adaptor and
the PoE input port are activated. The Cisco Catalyst 2960PD-8TT-L power adaptor and power
cord are optional and sold separately
Q. What are the benefits of Power over Ethernet ?
A. Power over Ethernet can provide a lower total cost of ownership for deployments that
®
incorporate Cisco IP phones and Cisco Aironet wireless LAN access points, as well as any
IEEE 802.3af compliant end device. Power over Ethernet removes the need for wall power to
each PoE-enabled device and eliminates the cost for additional electrical cabling that would
otherwise be necessary in IP phone and wireless LAN deployments. PoE switches also
eliminate the need for power injectors and PoE mid-spans for powering IP devices.
Q. How many devices can the Cisco Catalyst 2960 Series power?
A. The Cisco Catalyst 2960-48PST-L can support 48 PoE ports with total PoE power output
capacity at 370W. Taking advantage of Cisco Catalyst Intelligent Power Management, the
Cisco Catalyst 2960-48PST-L configuration can deliver the necessary power to support 24
ports at 15.4W, 48 ports at 7.7W, or any combination in between. The Cisco Catalyst 296024PC-L can support 24 simultaneous full-powered PoE devices at 15.4W for maximum
powered-device support. The Cisco Catalyst 2960-24LT-L can support eight PoE devices at
15.4W.
Q. Can Cisco Catalyst 2960 LAN Base switches support devices that require more than
15.4W?
A. No, Cisco Catalyst 2960 LAN Base switches support only up to 15.4W on PoE ports. The
Cisco Catalyst 2960-24PC-L can support 24 simultaneous full-powered PoE port at 15.4W for
maximum powered-device support. The Cisco Catalyst 2960-24LT-L24 has 24 10/100 ports
with 8 simultaneous full-powered PoE ports at 15.4W. For support of higher than 15.4W,
Cisco Catalyst 3560-E and 3750-E series switches are recommended.
Q. Does the Cisco Catalyst 2960 Series support standards-based Power over Ethernet?
A. Yes. The Cisco Catalyst 2960 Series supports IEEE 802.3af, and it provides investment
protection for the installed base of Cisco IP phones and Cisco Aironet wireless LAN access
points by also supporting the Cisco pre-standard Power over Ethernet (inline power).
© 2009 Cisco Systems, Inc. All rights reserved. This document is Cisco Public Information.
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Q&A
Q. Can the Cisco Catalyst 2960 Series provide power to IEEE 802.3af and Cisco prestandard Power over Ethernet simultaneously?
A. Yes. It automatically detects the end point to provide the appropriate power without any user
intervention.
Q. What are the advantages of Cisco Catalyst 2960 Series Switches with the LAN Base
software relative to Cisco Catalyst 2960 Series Switches with the LAN Lite software?
A. Cisco Catalyst 2960 LAN Base switches deliver intelligent services for branch offices and
wiring closets. The LAN Base IOS software supports enhanced Layer 2+ security, quality of
service (QoS), availability, and scalable management to enable new converged applications.
Catalyst 2960 LAN Base switches include both 10/100 Fast Ethernet and 10/100/1000 Gigabit
Ethernet connectivity in 8-, 24-, and 48-port configurations.
Cisco Catalyst 2960 LAN Lite switches are for entry-level branch office and wiring closet
networks. They simplify the migration from nonintelligent hubs and unmanaged switches to a
fully scalable and reliable network. The LAN Lite IOS software supports standard Layer 2
security, QoS, and availability while lowering the network total cost of ownership. Catalyst
2960 LAN Lite switches deliver 10/100 Fast Ethernet connectivity in 24- and 48-port
configurations.
All Cisco Catalyst 2960 Series Switches have technical support service options available
®
through Cisco SMARTNet service. All come with a Limited Lifetime Hardware Warranty, and
LAN Base and LAN Lite software updates are provided at no additional cost.
Q. What are the advantages of Cisco Catalyst 2960 PoE Series Switches and Cisco
Catalyst 3560/3750 PoE Series Switches?
A. The Catalyst 2960 Series PoE switches with intelligent services are ideally suited for small
branch offices that can benefit from converged networks. The Catalyst 2960 Series provides
enhanced security, scalable management, and unified network services for applications such
as unified communications and mobility. The Catalyst 3750 and 3560 with advanced intelligent
services are better suited for enterprise and mid-market campus wiring closets as well as
large branch offices. The Catalyst 3750 and 3560 Series switches provide investment
protection and deliver increased availability and scalability through advanced L3 services,
advanced security such as man-in-the-middle attack threat mitigation features, and increased
control for applications like Telepresence.
Q. What are Cisco Catalyst 2960 Compact Switches?
A. Cisco Catalyst 2960 Compact Switches are small form-factor switches designed for
deployments outside the wiring closet. They have a durable metal shell, no fan for silent
operation, easy wall or under-the-desk mounting, a security lock to prevent theft, and an
available cable guard to secure the Ethernet cables and switch. Now you can deliver
intelligent services such as Network Admission Control for the office workspace, micro branch
office, classroom, cruise ship, and other wiring-constrained environments. Table 1 describes
the Cisco Catalyst 2960 Compact Switch portfolio.
© 2009 Cisco Systems, Inc. All rights reserved. This document is Cisco Public Information.
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Q&A
Table 1.
Cisco Catalyst 2960 Compact Switches
Product Name
Part Number
Description
Cisco Catalyst 2960-8TC-S
WS-C2960-8TC-S
8 Ethernet 10/100 ports and 1 dual-purpose uplink (each dualpurpose uplink port has one 10/100/1000 Ethernet port and one
Small Form-Factor Pluggable [SFP]-based Gigabit Ethernet port,
one port active). 2960 LAN Lite IOS Software support
Cisco Catalyst 2960PD-8TT-L
WS-C2960PD-8TT-L
8 Ethernet 10/100 ports and 1 10/100/1000 PoE Input port (No
power supply required)
2960 LAN Base IOS Software support
Cisco Catalyst 2960-8TC-L
WS-C2960-8TC-L
Cisco Catalyst 2960G-8TC-L
WS-C2960G-8TC-L
8 Ethernet 10/100 ports and 1 dual-purpose uplink (each dualpurpose uplink port has one 10/100/1000 Ethernet port and one
Small Form-Factor Pluggable [SFP]-based Gigabit Ethernet port,
one port active)
2960 LAN Base IOS Software support
7 Ethernet 10/100/1000 ports and 1 dual-purpose uplink (each dualpurpose uplink port has one 10/100/1000 Ethernet port and one
SFP-based Gigabit Ethernet port, one port active)
2960 LAN Base IOS Software support
Cisco Catalyst 2960 Compact switches have a magnet included. For rack-mounting, you should
purchase the Compact switch rack mount RCKMNT-19-CMPCT=. The cable guard options for
Catalyst 2960 Compact Switches are CBLGRD-C2960-8TC= and CBLGRD-C2960G-8TC=.
Q. What are dual-purpose uplinks?
A. A dual-purpose uplink is a combination of one 10/100/1000-TX copper port and one SFPbased Gigabit Ethernet port. One of these two ports can be used at a time. This added uplink
flexibility allows cost-effective use of high-density, fiber-uplink-based stacks. Dual-purpose
uplinks also offer a full-duplex, gigabit-speed trunk for a Cisco Catalyst 2960 Series Switch
stack.
Q. What SFP transceivers are supported on the Cisco Catalyst 2960 Series?
A. Cisco Catalyst 2960 Series Switches support a wide range of SFP transceivers including
1000BASE-SX, 1000BASE-BX, 1000BASE-LX/LH, 1000BASE-ZX, 1000BASE-T, coarse
wavelength division multiplexing (CWDM), 100BASE-FX, 100BASE-LX10, and 100BASE-BX.
Table 2 lists the SFP transceivers supported.
Table 2.
Cisco SFP Transceivers Supported by Cisco Catalyst 2960 Series Switches
SFP Transceiver
Cisco Catalyst 2960 LAN Base Switches
Cisco Catalyst 2960 LAN Lite Switches
GLC-LH-SM=
Yes
Yes
GLC-SX-MM=
Yes
Yes
GLC-ZX-SM=
Yes
No
GLC-T=
Yes*
Yes
Yes
No
Yes*
Yes
Yes
No
Yes
No
Yes
No
GLC-BX-D=
GLC-BX-U=
GLC-GE-100FX=
GLC-FE-100FX=
GLC-FE-100LX=
GLC-FE-100BX-D=
GLC-FE-100BX-U=
CWDM SFPs
*Note: GLC-T and GLC-GE-100FX are not supported on the Cisco Catalyst 2960-8TC-S, 2960-8TC-L and
2960G-8TC-L switches. For 100BASE-FX connectivity, use the GLC-FE-100FX instead for the compact
switches.
© 2009 Cisco Systems, Inc. All rights reserved. This document is Cisco Public Information.
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Q&A
Q. Do Cisco Catalyst 2960 Series Switches have redundant power supply (RPS) support?
A. Yes. The following Cisco Catalyst 2960 Series Switches have RPS support:
●
Catalyst 2960-24TT-L
●
Catalyst 2960-24TC-L
●
Catalyst 2960-24PC-L
●
Catalyst 2960-48PST-L
●
Catalyst 2960-24LT-L
●
Catalyst 2960-48TT-L
●
Catalyst 2960-48TC-L
●
Catalyst 2960G-24TC-L
●
Catalyst 2960G-48TC-L
A converged voice and data network has the greatest power availability when a Cisco Catalyst
2960 Series Switch is combined with the Cisco RPS 2300 Redundant Power System for
protection against internal power supply failures and an uninterruptible power supply (UPS)
system to safeguard against power outages. For more information about the Cisco RPS 2300,
visit http://www.cisco.com/en/US/products/hw/routers/ps2883/ps5066/index.html.
The Cisco Catalyst 2960 Compact Switches and Cisco Catalyst 2960 LAN Lite Switches do
not have RPS support.
Q. What are the notable differences between the Cisco Catalyst 2960 LAN Base and LAN
Lite switches?
A. Cisco Catalyst 2960 LAN Base switches have several advantages:
●
Gigabit Ethernet connectivity in 8-, 24-, and 48-port configurations
●
RPS support and support for a wide range of SFP transceivers
●
Enhanced security through Layer 2-4 access control lists (ACLs), DHCP Snooping, and
more extensive Network Admission Control capabilities such as Web authentication and
802.1x enhancements
●
Additional QoS capabilities: The LAN Base IOS supports policing, class and policy maps,
differentiated services code point (DSCP), AutoQoS, and configurable queue weights,
buffers, and thresholds
●
Higher network-level availability with features such as Flex Links and Link State Tracking
●
Increased number of VLANs (256) and other enhancements such as IPv6 Host, MLD
Snooping, LLDP-MED, RSPAN, MVR, DHCP Option 82, and IP SLA (responder)
Q. What are the similarities between the Cisco Catalyst 2960 LAN Base and LAN Lite
switches?
A. Both Cisco Catalyst 2960 LAN Base and LAN Lite Switches support the following capabilities:
●
Scalable and highly secure network management: Secure Shell (SSH), Secure Sockets
Layer (SSL), Secure Copy Protocol (SCP), and SNMPv3 crypto
●
Network management tool support by CiscoWorks, Cisco Network Assistant, and Catalyst
Device Manager
●
Baseline Network Admission Control and 802.1x MAC Auth Bypass and Protected Port
●
Voice VLAN and voice-aware port security, BPDU Guard, and Root Guard
© 2009 Cisco Systems, Inc. All rights reserved. This document is Cisco Public Information.
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Q&A
●
Standard QoS with Class of Service (CoS) marking, Shaped Round Robin, Weighted Tail
Drop, and Strict Priority scheduling
●
Link aggregation using Port Aggregation Protocol (PAgP) and 802.3ad LACP
●
Complete Spanning Tree Protocol support via 802.1s, 802.1w, and PVST+
●
VLAN Trunking Protocol (VTP), Cisco Discovery Protocol v2, and LLDP
●
Multicast support in hardware with IGMP Snooping, Filtering, and Querier
●
Troubleshooting and monitoring tools such as TDR, SPAN, and UDLD
For a full list of software features supported by the Cisco Catalyst 2960 Series, visit
http://www.cisco.com/go/catalyst2960.
Q. Can I upgrade or downgrade a Cisco Catalyst 2960 Switch between the LAN Base and
LAN Lite IOS images?
A. No. Cisco Catalyst 2960 Series Switches cannot be upgraded from LAN Lite to LAN Base and
cannot be downgraded from LAN Base to LAN Lite.
Q. How do I get the cryptography features, and is there an additional charge for them?
A. The features with advanced cryptography (such as SSH, SSL, SCP, and SNMPv3) are
packaged in a special “k9” version of the Cisco Catalyst 2960 LAN Base and LAN Lite IOS
images. You must go to the Software Download Center on Cisco.com to get the “k9” software
versions and upgrade your switches. There is no additional charge for this software version.
Q. Does the Cisco Catalyst 2960 Series support IPv6?
A. Yes. Cisco Catalyst 2960 switches with LAN Base software support IPv6 management and
MLD Snooping. The Cisco Catalyst 2960 LAN Lite switches do not support IPv6.
Intelligent Switching
Q. Why do I need intelligence at the edge of my network?
A. Networks have evolved to address four new developments at the network edge:
●
Increase in desktop computing power
●
Introduction of bandwidth-intensive applications
●
Expansion of highly sensitive data on the network
●
Presence of multiple device types, such as IP phones and wireless LAN access points
These new demands compete for resources with many existing mission-critical applications.
As a result, IT professionals must view the edge of the network as critical to effectively
manage the delivery of information and applications. As companies increasingly rely on
networks as the strategic business infrastructure, it is important to help ensure their high
availability, security, scalability, and control. By adding intelligent functions to the wiring closet,
you can deploy networkwide intelligent services that address these requirements in a
consistent way from the desktop to the core and through the WAN. Cisco Catalyst Intelligent
Ethernet switches can help you realize the full benefits of adding intelligent services to your
network. Deploying capabilities that make the network infrastructure highly available to
accommodate time-critical needs, scalable to accommodate growth, secure enough to protect
confidential information, and capable of differentiating and controlling traffic flows is the basis
of further optimizing network operations.
Q. Can you provide more details about how Cisco intelligent switching will help my
network?
© 2009 Cisco Systems, Inc. All rights reserved. This document is Cisco Public Information.
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Q&A
A. New applications are requiring higher bandwidth and the need to differentiate and control the
traffic flow. Applications such as enterprise resource planning (ERP; Oracle or SAP, for
example), voice (IP telephony traffic), and computer-aided design and manufacturing
(CAD/CAM) require priority over less time-sensitive applications such as FTP or Simple Mail
Transfer Protocol (SMTP). It is undesirable to have a large file download destined to one port
on a switch increasing latency in voice traffic destined to another port on the same switch.
This condition is avoided by making sure that voice traffic is properly classified and prioritized
throughout the network. Cisco Intelligent Ethernet switches implement superior QoS to help
ensure that network traffic is classified and prioritized and congestion is avoided.
Network Security
Q. How do Cisco Intelligent Ethernet switches manage the security needs of a network?
A. With the rise in internal threats to a network, Cisco Intelligent Ethernet switches enhance data
security through a wide range of features, including SSH Protocol, SNMPv3, ACLs, 802.1x,
port security, Private VLAN Edge, Dynamic Host Configuration Protocol (DHCP) Interface
Tracker, MAC address notification, and RADIUS/TACACS+. Depending on your security
needs, the Cisco Catalyst 2960 Series complements devices such as firewalls, VPNs, and
intrusion detection systems (IDSs).
Q. How can I protect unauthorized users from accessing my network?
A. The Cisco Catalyst 2960 Series supports the IEEE 802.1x standard, which works in
conjunction with a RADIUS server to authenticate users as they access a network. The 802.1x
standard is considered port-level security and is commonly used for wireless LANs.
Additionally, portions of the network can be restricted by using ACLs. Access can be denied
based on MAC addresses, IP addresses, or TCP/UDP ports. ACL lookups are done in
hardware and do not compromise forwarding and routing performance. An additional
protection method is to use port security, which helps ensure the appropriate user is on the
network by limiting access to the port based on MAC addresses.
Q. How can I monitor or track activities in my network?
A. IDSs are tailored to monitor and track activities in a network. The Cisco Catalyst 2960 Series
can complement this through features such as MAC address notification, which sends an alert
to a management station so that network administrators know when and where users came on
the network and can take appropriate actions. The DHCP Interface Tracker (Option 82)
feature tracks where a user is physically connected on a network by providing both switch and
port ID to a DHCP server. DHCP Snooping enables the administrator to keep track of both
dynamic and static IP/MAC mapping tables.
Q. How can I protect administration passwords and traffic going to the switch during
configuration or troubleshooting?
A. To protect administration traffic during the configuration or troubleshooting of a switch (such
as passwords or device configuration settings), the best approach is to encrypt the data using
both SSH and SNMPv3 to provide encryption of data during Telnet sessions and SNMP
sessions.
Network Management
Q. Do Cisco Catalyst 2960 Series Switches support Cisco switch clustering technology?
A. Yes. Cisco Catalyst 2960 Series Switches can be managed using Cisco Network Assistant
software, which uses Cisco switch clustering technology. Cisco Network Assistant is a PC© 2009 Cisco Systems, Inc. All rights reserved. This document is Cisco Public Information.
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Q&A
based network management application optimized for LANs of small and medium-sized
businesses with up to 250 users. Cisco Network Assistant offers centralized management of
Cisco switches, routers, and WLAN access points. It supports a wide range of Cisco Catalyst
Intelligent Ethernet switches. Through a user-friendly GUI, users can configure and manage a
wide array of switch functions and start the device manager of Cisco routers and Cisco
wireless access points. Cisco Network Assistant is available at no cost and can be
downloaded from Cisco.com.
Cisco Network Assistant provides an integrated management interface for delivering intelligent
services, enabling users to manage their entire LAN with one robust tool. By bringing the
simplicity of traditional LAN switching to intelligent services such as multilayer switching, QoS,
multicast, and security ACLs, Cisco Network Assistant offers administrators benefits formerly
reserved for only the most complex networks. Cisco Network Assistant's Guide mode leads
you through the configuration of high-end features and provides enhanced online help for
context-sensitive assistance. In addition, a solution wizard provides automated configuration
of the switch for video streaming or video conferencing.
Cisco Network Assistant supports standards-based connectivity options such as Ethernet,
®
Fast Ethernet, Cisco Fast EtherChannel technology, Gigabit Ethernet, and Gigabit
EtherChannel connectivity. Because Cisco switch clustering technology is not limited by
proprietary stacking modules, stacking cables, or interconnection media, Cisco Network
Assistant expands the traditional cluster domain beyond a single wiring closet and lets you
combine interconnections to meet specific management, performance, and cost requirements.
Cisco Catalyst 2960 Series Switches can be configured as either command or member
switches in a Cisco switch cluster. Cisco Network Assistant also allows you to designate a
standby or redundant command switch, which takes the commander duties should the primary
command switch fail. Other important features include the ability to configure multiple ports
and switches simultaneously, as well as to perform software updates across the entire cluster
at once. Bandwidth graphs and link reports provide useful diagnostic information, and the
topology map gives network administrators a quick view of the network status.
Positioning
Q. What are the advantages of Cisco Catalyst 2960 LAN Lite switches relative to Cisco
Catalyst 2950 standard image switches?
A. The Cisco Catalyst 2960 LAN Lite switches use a new hardware and software architecture
that provides higher reliability and simplifies network deployments and troubleshooting. They
increase deployment flexibility with dual-purpose Gigabit uplinks instead of fixed fiber ports,
and the LAN Lite IOS provides more consistency with the rest of the Catalyst switching
portfolio in its command-line interface. The LAN Lite IOS software provides highly secure
management through SSL, SCP, and SNMPv3 and simplifies network deployments and
troubleshooting with features such as TDR, IP address DCHP, and Auto-MDIX.
© 2009 Cisco Systems, Inc. All rights reserved. This document is Cisco Public Information.
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Q&A
Software Updates
Q. Can I obtain a "no additional cost" Cisco IOS® Software update for the Cisco Catalyst
2960 Series?
A. Yes. Cisco offers ongoing Cisco IOS Software updates for certain fixed-configuration and
stackable Cisco Catalyst switches at no additional cost. For the life of the product, updates
within the Cisco IOS Software package purchased (LAN Lite and LAN Base) will be made
available.
Note that upgrades are different from updates. For example, an upgrade from the IP Base
package to IP Services package provides significant new function; therefore, this upgrade
requires the purchase of a software license upgrade. Updates are incremental software
features and bug fixes that are released within a licensed Cisco IOS Software package.
This statement supersedes any previous warranty or software statement and is subject to
change without notice.
Q. How do I get a "no additional cost" Cisco IOS Software update for the Cisco Catalyst
2960 Series?
A. Visit http://www.cisco.com, click "Downloads," and select "Switch Software." Downloading
software requires a Cisco.com username and password. If you do not have a Cisco.com
username, you can obtain one by clicking "Register" at the top of any Cisco.com Webpage.
Warranty and Service
Q. What is the warranty on the Cisco Catalyst 2960 Series?
A. The hardware warranty available on the Cisco Catalyst 2960 Series is the Limited Lifetime
Hardware Warranty. This warranty automatically comes with the purchase of eligible Cisco
Catalyst products, free of charge. It offers free advanced replacement of products within 10
business days. For more information about the limited lifetime hardware warranty, visit
http://www.cisco.com/univercd/cc/td/doc/es_inpck/lh2ben__.htm.
Q. What types of services and support are available for the Cisco Catalyst 2960 Series?
A. A full complement of lifecycle services and support is available for the Cisco Catalyst 2960
Series. From implementation to operation and optimization, Cisco offers Technical Support
Service delivered either directly or through a Cisco partner.
®
Technical support service is available through Cisco SMARTnet and Cisco SMARTnet Onsite
support. The Cisco SMARTnet service augments the resources of your operations staff by
providing them with access to expertise, both online and on the telephone, and numerous
hardware advance replacement options. Cisco SMARTnet Onsite complements the hardware
advance replacement feature by adding the services of a field engineer, services that can be
critical for locations where internal staff is unable to perform part replacement activities.
Product Information
Q. Where can I find technical and product specifications and other additional information
about the Cisco Catalyst 2960 Series?
A. For product literature, including data sheets and product specifications, visit
http://www.cisco.com/go/catalyst2960.
© 2009 Cisco Systems, Inc. All rights reserved. This document is Cisco Public Information.
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Q&A
Printed in USA
© 2009 Cisco Systems, Inc. All rights reserved. This document is Cisco Public Information.
C67-341336-07 05/09
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