OL11484.pdf

Release Notes for the Catalyst 2955,

Catalyst 2950, and Catalyst 2940 Switches,

Cisco IOS Release 12.1(22)EA9

December 7, 2006

Cisco IOS Release 12.1(22)EA9 runs on Catalyst 2955, Catalyst 2950, and Catalyst 2940 switches.

Review the new software features, open caveats, and resolved caveats sections for information specific

to your switch. The information in this document refers to all the switches, unless otherwise noted.

These release notes include important information about this release and any limitations, restrictions,

and caveats that apply to it. To verify that these are the correct release notes for your switch:

• If you are installing a new switch, see the Cisco IOS release label on the rear panel of your switch.

If your switch is running, you can use the show version user EXEC command. See the “Finding the

Software Version and Feature Set” section on page 7 .

If you are upgrading to a new release, see the software upgrade filename for the Cisco IOS version.

For the complete list of Catalyst 2955, Catalyst 2950, and Catalyst 2940 switch documentation, see the

“Related Documentation” section on page 48 .

You can download the switch software from this site:

http://www.cisco.com/kobayashi/sw-center/sw-lan.shtml

This Cisco IOS release is part of a special release of Cisco IOS software that is not released on the same

8-week maintenance cycle that is used for other platforms. As maintenance releases and future Cisco

IOS releases become available, they will be posted to Cisco.com in the Cisco IOS software area.

Corporate Headquarters:

Cisco Systems, Inc., 170 West Tasman Drive, San Jose, CA 95134-1706 USA

Contents

This information is in the release notes:

“System Requirements” section on page 2

“Upgrading the Switch Software” section on page 6

“Installation Notes” section on page 14

“New Features” section on page 14

“Limitations and Restrictions” section on page 14

“Important Notes” section on page 25

“Open Caveats” section on page 28

“Resolved Caveats” section on page 29

“Documentation Updates” section on page 30

“Related Documentation” section on page 48

“Obtaining Documentation” section on page 49

“Cisco Product Security Overview” section on page 50

“Obtaining Technical Assistance” section on page 52

“Obtaining Additional Publications and Information” section on page 53

System Requirements

The system requirements for this release are described in these sections:

“Hardware Supported” section on page 2

“Hardware Not Supported” section on page 4

“Device Manager System Requirements” section on page 4

“Cluster Compatibility” section on page 5

Hardware Supported

The Catalyst 2950 switch is supported by either the standard software image (SI) or the enhanced

software image (EI). The Catalyst 2950 Long-Reach Ethernet (LRE) and Catalyst 2955 switches are

supported only by the EI. The Catalyst 2940 switch supports some of the features supported by a Catalyst

2950 switch.

The EI provides a richer set of features, including access control lists (ACLs), enhanced quality of

service (QoS) features, and extended-range VLANs. The cryptographic SI and EI support the Secure

Shell Version 2 (SSHv2) protocol.

For information about the software releases that support the switches listed in Table 1 , see the “Catalyst

2950 Hardware and Software Compatibility Matrixes” section on page 23 .

Release Notes for the Catalyst 2955, Catalyst 2950, and Catalyst 2940 Switches, Cisco IOS Release 12.1(22)EA9

OL-11484-01

System Requirements

Table 1 and Ta bl e 2 list the hardware supported by this software release:

Table 1

Catalyst 2940, Catalyst 2950, and Catalyst 2955 Hardware Supported

Software

Image

Hardware

Description

– 1

Catalyst 2940-8TT-S

8 10/100 Ethernet ports and 1 10/100/1000 Ethernet port

– 1

8 10/100 Ethernet ports, 1 SFP 2 module slot, and 1 100BASE-FX port

Catalyst 2940-8TF-S

Catalyst 2950-12

12 fixed autosensing 10/100 Ethernet ports

Catalyst 2950-24

24 fixed autosensing 10/100 Ethernet ports

Catalyst 2950C-24

24 fixed autosensing 10/100 Ethernet ports and 2 100BASE-FX ports

12 fixed autosensing 10/100 Ethernet ports and 2 GBIC 3 module slots

Catalyst 2950G-12-EI

Catalyst 2950G-24-EI

24 fixed autosensing 10/100 Ethernet ports and 2 GBIC module slots

Catalyst 2950G-24-EI-DC

24 fixed autosensing 10/100 Ethernet ports and 2 GBIC module slots with

DC-input power

Catalyst 2950G-48-EI

48 fixed autosensing 10/100 Ethernet ports and 2 GBIC module slots

8 LRE ports, 2 10/100/1000 Ethernet ports 4 , and 2 SFP module slots

Catalyst 2950ST-8 LRE

24 LRE ports, 2 10/100/1000 Ethernet ports 4 , and 2 SFP module slots

Catalyst 2950ST-24 LRE

24 LRE ports, 2 10/100/1000 Ethernet ports 4 , and 2 SFP module slots with

DC-input power

Catalyst 2950ST-24 LRE 997

Catalyst 2950SX-24

24 fixed autosensing 10/100 Ethernet ports and 2 1000BASE-SX ports

Catalyst 2950SX-48-SI

48 fixed autosensing10/100 Ethernet ports and 2 1000BASE-SX ports

24 fixed autosensing 10/100 Ethernet ports and 2 10/100/1000 Ethernet ports 5

Catalyst 2950T-24

Catalyst 2950T-48-SI

48 fixed autosensing 10/100 Ethernet ports and 2 10/100/1000 Ethernet ports

12 fixed autosensing 10/100 ports and 2 MM 6 100BASE-FX ports

Catalyst 2955C-12

12 fixed autosensing 10/100 ports and 2 SM 7 100BASE-LX ports

Catalyst 2955S-12

12 fixed autosensing 10/100 ports and 2 10/100/1000 Ethernet ports 4

Catalyst 2955T-12

The Catalyst 2940 switch supports some of the features supported by a Catalyst 2950 switch.

SFP = small form-factor pluggable

GBIC = Gigabit Interface Converter

The 10/100/1000 ports on a Catalyst 2950 LRE or Catalyst 2955T-12 switch operate at 10 or 100 Mbps in either full- or half-duplex mode and at

1000 Mbps only in full-duplex mode.

The 10/100/1000 interfaces on the Catalyst 2950T-24 switch do not support the half keyword in the duplex command.

MM = multimode

SM = single mode

Table 2

Other Hardware Supported

Software

Image

Hardware

Description

Cisco 575 LRE CPE 1

–

1 fixed 10/100 port

Cisco 576 LRE CPE 997

–

1 fixed 10/100 port

Cisco 585 LRE CPE

–

4 fixed 10/100 ports

Release Notes for the Catalyst 2955, Catalyst 2950, and Catalyst 2940 Switches, Cisco IOS Release 12.1(22)EA9

OL-11484-01

System Requirements

Table 2

Other Hardware Supported (continued)

Software

Image

Hardware

Description

GBIC modules

–

1000BASE-SX GBIC

1000BASE-LX/LH GBIC

1000BASE-ZX GBIC

1000BASE-T GBIC (model WS-5483)

CWDM 2 fiber-optic GBIC 3

DWDM 4 fiber-optic GBIC

GigaStack GBIC

Redundant power system

–

Cisco RPS 300 redundant power system

Cisco RPS 675 redundant power system

SFP devices

–

1000BASE-SX SFP module

1000BASE-LX\LH SFP module

1000BASE-ZX SFP module

1000BASE-T SFP module

CWDM

CPE = customer premises equipment

CDWM = coarse wavelength-division multiplexing

This feature is only supported when your switch is running the EI.

DWDM = dense wavelength-division multiplexing

Hardware Not Supported

Table 3 lists the hardware that is not supported by this release.

Table 3

Hardware Not Supported

Hardware

Description

GBIC module

1000BASE-T GBIC (model WS-G4582)

Redundant power system

Cisco RPS 600 Redundant Power System

Device Manager System Requirements

These sections describes the hardware and software requirements for using the device manager:

“Hardware Requirements” section on page 5

“Software Requirements” section on page 5

Release Notes for the Catalyst 2955, Catalyst 2950, and Catalyst 2940 Switches, Cisco IOS Release 12.1(22)EA9

OL-11484-01

System Requirements

Hardware Requirements

Table 4 lists the minimum hardware requirements for running the device manager.

Table 4

Minimum Hardware Requirements

Processor Speed

DRAM

Number of Colors

Resolution

Font Size

Intel Pentium II 1

64 MB 2

256

1024 x 768

Small

We recommend Intel Pentium 4.

We recommend 256-MB DRAM.

Software Requirements

Table 5 lists the supported operating systems and browsers for using the device manager. The device

manager verifies the browser version when starting a session to ensure that the browser is supported.

The device manager does not require a plug-in.

Note

Table 5

Supported Operating Systems and Browsers

Microsoft Internet

Explorer 1

Netscape

Navigator

Operating System

Minimum Service Pack or Patch

Windows 2000

None

5.5 or 6.0

7.1

Windows XP

None

5.5 or 6.0

7.1

Service Pack 1 or higher is required for Internet Explorer 5.5.

Cluster Compatibility

You cannot create and manage switch clusters through the device manager. To create and manage switch

clusters, use the command-line interface (CLI) or the Network Assistant application.

When creating a switch cluster or adding a switch to a cluster, follow these guidelines:

When you create a switch cluster, we recommend configuring the highest-end switch in your cluster

as the command switch.

If you are managing the cluster through Network Assistant, the switch that has the latest software

should be the command switch.

The standby command switch must be the same type as the command switch. For example, if the

command switch is a Catalyst 3750 switch, all standby command switches must be Catalyst 3750

switches.

For additional information about clustering, see Getting Started with Cisco Network Assistant and

Release Notes for Cisco Network Assistant (not orderable but available on Cisco.com), the software

configuration guide, and the command reference.

Release Notes for the Catalyst 2955, Catalyst 2950, and Catalyst 2940 Switches, Cisco IOS Release 12.1(22)EA9

OL-11484-01

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