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March 29, 1999
These release notes describe changes to the Catalyst 2900 series XL software that are not in the current Catalyst 2900 series XL documentation. This information includes the limitations, restrictions, and caveats of Cisco IOS Release 11.2(8)SA5. See the "Related Documentation" section for the complete list of Catalyst 2900 series XL documentation.
Catalyst 2900 series XL switches are supported by a special release of Cisco IOS software that is not released on the same eight-week maintenance cycle that is used for other platforms. As maintenance releases and future Cisco IOS releases become available, they will be posted to CCO in the
Cisco IOS software area.
These release notes apply to the Cisco IOS Release 11.2(8)SA5 Enterprise Edition Software (-EN) and standard edition software (-A). Those sections that make no reference to the
Enterprise Edition Software or the standard edition software apply to both editions.
These release notes have the following sections:
Table 1 lists the Catalyst 2900 series XL switches that are supported by IOS Release 11.2(8)SA5 software. Table 2 lists the Catalyst 2900 series XL modules, the IOS releases they support, and the minimum IOS release required by the module.
| Model Number | Description | IOS 11.2(8)SA5 -A | IOS 11.2(8)SA5 -EN | VLAN Trunking Ports? | |
|---|---|---|---|---|---|
WS-C 2912-XL-A WS-C2912-XL-EN | 12 fixed autosensing 10/100 ports | Yes | Yes | Yes (-EN) | |
WS-C2924M-XL-A WS-C2924M-XL-EN | 24 fixed autosensing 10/100 ports and 2 high-speed expansion slots | Yes | Yes | Yes (-EN) | |
WS-C2924-XL-A WS-C2924-XL-EN | 24 fixed autosensing 10/100 ports | Yes | Yes | Yes (-EN) | |
WS-C2924C-XL-A WS-C2924C-XL-EN | 22 fixed autosensing 10/100 ports and 2 fixed 100BaseFX ports | Yes | Yes | Yes (-EN) | |
WS-C2912MF-XL | 12 100BaseFX ports and 2 high-speed expansion slots | No | Yes | Yes | |
WS-C2908-XL | 8 fixed autosensing 10/100 ports | No | Yes | No | |
WS-C2924-XL | 24 fixed autosensing 10/100 ports | No | Yes | No | |
WS-C2924C-XL | 22 fixed autosensing 10/100 ports and 2 100BaseFX ports | No | Yes | No | |
WS-C2916M-XL | 16 fixed autosensing 10/100 ports and 2 high-speed expansion slots | No | Yes | No1 | |
| 1Module ports that support trunking can be installed in this switch if the switch is running Cisco IOS Release 11.2(8)SA5 Enterprise Edition Software. |
| Model Number | Description | IOS 11.2(8)SA5 -A | IOS 11.2(8)SA5 -EN | Minimum Release Required | VLAN Trunking Ports? | |
WS-X2972-XL | 1 ATM 155 SM-LR fiber port | Yes | Yes | IOS Release 11.2(8)SA5 | Yes | |
WS-X2971-XL
| 1 ATM 155 SM-MR fiber port | Yes | Yes | IOS Release 11.2(8)SA5 | Yes | |
WS-X2961-XL | 1 ATM 155 MM fiber port | Yes | Yes | IOS Release 11.2(8)SA5 | Yes | |
WS-X2951-XL | 1 ATM 155 UTP port | Yes | Yes | IOS Release 11.2(8)SA5 | Yes | |
WS-X2931-XL | 1 1000BaseX port | Yes | Yes | IOS Release 11.2(8)SA5 | Yes | |
WS-X2924-XL-V | 4 100BaseFX ports | Yes | Yes | IOS Release 11.2(8)SA4 | Yes | |
WS-X2922-XL-V | 2 100BaseFX ports | Yes | Yes | IOS Release 11.2(8)SA4 | Yes | |
WS-X2922-XL | 2 100BaseFX ports | Yes | Yes | IOS Release 11.2(8)SA | No | |
WS-X2914-XL-V | 4 autosensing 10/100 UTP ports | Yes | Yes | IOS Release 11.2(8)SA4 | Yes | |
WS-X2914-XL | 4 autosensing 10/100 UTP ports | Yes | Yes | IOS Release 11.2(8)SA | No | |
This section describes the procedure for upgrading your switch software by using the Cisco IOS command-line interface (CLI). If you are running Cisco IOS Release 11.2(8)SA3 or later, we recommend that you upgrade the switch by using the web-based Cisco Visual Switch Manager Software (CVSM). Instructions for upgrading via CVSM are in the Catalyst 2900 Series XL Installation and Configuration Guide.
The CLI upgrade procedure consists of the following major steps:
Step 1 Downloading the software file from CCO.
Step 2 If necessary, downloading the TFTP server application to copy the switch software from your PC to the switch.
Step 3 Using the CLI or CVSM to upgrade your switch to the new software.
Follow these steps to download a new version of Catalyst 2900 series XL software and the TFTP server application.
Step 1 Enter the following URL in your browser Go To or Location field:
http://www.cisco.com/kobayashi/sw-center/switching/cat2900XL.shtml
From this page you can select to download the Enterprise Edition Software, the standard edition software, or previous releases of software.
Step 2 Login to Software Center if prompted and select the software option you want.
If you do not have an account for Software Center, you can dowload IOS 11.2(8)SA5 standard edition software from the following URL:
http://www.cisco.com/public/sw-center/switching/cat2900XL-form.shtml
You are prompted to complete a survey before you download the software.
Step 3 Download the Cisco IOS file. The files follow these naming conventions:
Step 4 Download the TFTP server from this URL, if necessary. The readme.txt file describes how to download the TFTP server.
After you have downloaded the new file to your PC or workstation, you can use the CLI to perform a TFTP transfer of the files to the switch.
The procedure that follows includes the commands to address the following issues:
Follow these steps to upgrade the switch software by using a TFTP transfer:
Step 1 If your PC or workstation cannot act as a TFTP server, copy the file to a TFTP server to which you have access.
Step 2 Access the CLI by starting a Telnet session or by connecting to the console port via the RS-232 connector.
To start a Telnet session on your PC or workstation, enter the following command:
server% telnet switch_ip_address
Step 3 Enter privileged EXEC mode:
switch> enable
switch#
Step 4 Display the name of the current (default) image file. The following example shows the current name in italic:
switch# show boot
BOOT path-list: flash:current_image
Config file: flash:config.text
Enable Break: 1
Manual Boot: no
HELPER path-list:
NVRAM/Config file
buffer size: 32768
Step 5 If there is no file defined in the BOOT path-list, enter dir flash: to display the contents of Flash memory. The file named c2900XL-h-mz_current_version is your current image file.
Step 6 Using the name of the tar file that you downloaded, rename the current image file to that name. The new image file name is then the same as the file name that you downloaded with a bin extension. This step does not affect the operation of the switch.
switch# rename flash:current_image flash:new_image.bin
Source filename [current_image]?
Destination filename [new_image]?
Step 7 Display the contents of Flash memory to verify the renaming of the file:
switch# dir flash:
Directory of flash:
-rwx 910426 Mar 06 1993 23:47:28 new_image -rwx 80971 Sep 14 1998 03:10:38 c2900XL-diag-mz-112.0.0.11-SA2
-rwx 4800 Mar 01 1993 00:04:14 html
-rwx 159 Jan 01 1970 00:00:34 env_vars
-rwx 1121 Mar 01 1993 18:46:01 config.text
Step 8 If you are upgrading a WS-C2908-XL, WS-C2924-XL, WS-C2924C-XL, or WS-C2916M-XL, you need to delete the diagnostics file to make room for the new software.
The diagnostics file has a name in the following format: c2900XL-diag-mz-version_name. The string version_name depends on the switch and software you are running.
Display the diagnostics file:
switch# dir flash:c2900XL-diag-mz*
Directory of flash:
-rwx 80971 Sep 14 1998 03:10:38 c2900XL-diag-mz-112.0.0.11-SA2
Delete the diagnostics file:
Switch# del flash:c2900XL-diag-mz-112.0.0.11-SA2 Delete filename [c2900XL-diag-mz-112.0.0.11-SA2]? Delete flash:c2900XL-diag-mz-112.0.0.11-SA2? [confirm] Switch#
Step 9 Enter terminal configuration mode:
switch# configure terminal
Enter configuration commands, one per line. End with CNTL/Z.
Step 10 Disable access to the switch HTML pages:
switch(config)# no IP http server
Step 11 Change the name of the default image file:
switch(config)# boot system flash:new_image
Step 12 Return to privileged EXEC mode:
switch(config)# end
Step 13 Verify that the name of the default image file is correct:
switch# show boot
BOOT path-list: flash:new_image
Config file: flash:config.text
Enable Break: 1
Manual Boot: no
HELPER path-list:
NVRAM/Config file
buffer size: 32768
Step 14 Remove the manager software HTML files:
switch# del flash:html/*.*
Press Enter to confirm the deletion of each file. Do not press any other keys during this process.
Step 15 If you are running Cisco IOS Release 11.2(8)SA3 or later, remove the files in the Snmp directory:
switch# del flash:html/Snmp/*.*
Make sure the "S" in "Snmp" is uppercase.
Press Enter to confirm the deletion of each file. Do not press any other keys during this process.
Step 16 If you are running Cisco IOS Release 11.2(8)SA2 or earlier, create a directory on the switch Flash memory to be used for the HTML files:
switch# mkdir flash:html/Snmp
Make sure the "S" in "Snmp" is uppercase.
Step 17 Enter the following command to copy the new software file to the switch Flash memory:
switch# tar /x tftp://server_ip_address//path/filename.tar flash: Loading /path/filename.tar from server_ip_address (via!)
extracting advanced.gif (2648 bytes)
extracting amber.gif (530 bytes)!
extracting bar.gif (4156 bytes)!
extracting cool.gif (530 bytes)
extracting daytona.gif (1470 bytes)
extracting duplgnd.gif (639 bytes)!
. . .
Depending on the TFTP server being used, you might need to enter only one slash (/) after the server_ip_address in the tar command.
Step 18 Enter terminal configuration mode:
switch# configure terminal
Enter configuration commands, one per line. End with CNTL/Z.
Step 19 Reenable access to the switch HTTP pages:
switch(config)# IP http server
Step 20 Return to privileged EXEC mode:
switch(config)# end
Step 21 Reload the new software with the following command:
switch# reload
System configuration has been modified. Save? [yes/no]:y
Proceed with reload? [confirm]
Step 22 Press Return to confirm the reload.
Your Telnet session ends when the switch resets.
This section describes the procedure for upgrading switch software after you have upgraded to IOS Release 11.2(8)SA5. To upgrade to IOS Release 11.2(8)SA5, see the "Upgrading to a New Software Release" section. To upgrade the following models from IOS Release 11.2(8)SA4 to IOS Release 11.2(8)SA5, you need to use the command-line interface procedure described in the "Upgrading Switch Software by Using the CLI" section:
With IOS Release 11.2(8)SA5, you can upgrade the switch software by using a single file. You can download this file by using the procedure described in "Downloading Files from CCO" section.
Follow these steps to upgrade the switch software by using the combined (tar) file that contains the image and the HTML pages:
Step 1 Open the CVSM System Configuration page.
Step 2 In the Combined Cisco IOS and Visual Switch Manager Upgrade section, enter the IP address of your TFTP server in the Server IP Address or Name of TFTP Server field.
Step 3 In the Cisco IOS and Visual Switch Manager Upgrade Filename field, enter the filename of the combined IOS image and HTML tar file that you downloaded from CCO (such as c2900XL-h-mz-112.8-SA5.tar or c2900XL-hs-mz-112.8-SA5.tar)
Step 4 Click Upgrade Cisco IOS and Visual Switch Manager.
In the CVSM software message window that appears, click OK to change the old image filename into the new image filename. Changing the filenames enables the old image to be overwritten by the new version. Only enough Flash memory is available for one version.
Step 5 In the CVSM software confirmation window that appears, click OK to continue the upgrade process. This can take several minutes.
Step 6 In the TFTP server window, wait for the successful message to appear.
Step 7 Reboot the switch.
Step 8 Reload the CVSM page to access the new HTML files.
IOS Release 11.2(8)SA5 includes support for the following new modules:
The documentation for these modules is listed in the "Related Documentation" section.
Several IOS commands have changed to support the ATM and Gigabit Ethernet modules. The ATM commands will be documented in the Configuration Notes for Cisco IOS Release 11.2(8)SA5 and posted on CCO with the Catalyst 2900 series XL ATM module documentation.
The Catalyst 2900 Series Command Reference describes the commands that refer to the Catalyst 2900 Series XL Gigabit Ethernet module.
One command supporting the Gigabit Ethernet module is described in the section flowcontrol.
Use the flowcontrol interface configuration command on Gigabit Ethernet ports to control traffic rates during congestion. Use the no form of this command to disable flow control on the port.
flowcontrol [asymmetric | symmetric]
no flowcontrol
asymmetric | Enable the local port to perform flow control of the remote port. If the local port is congested, it can request the remote port to stop transmitting. When the congestion clears, the local port requests that the remote port begin transmitting. |
symmetric | Enable the local port to perform flow control only if the remote port can also perform flow control of the local port. If the remote port cannot perform flow control, the local port also will not. |
Asymmetric
Interface configuration
The following example shows how to configure the local port to support any level of flowcontrol by the remote port:
Switch(config-if)# flowcontrol
The following example shows how to configure the local port to control the flow of traffic from the remote port:
Switch(config-if)# flowcontrol asymmetric
This section should be reviewed before you begin working with the Catalyst 2900 series XL switches or Catalyst 2900 series XL modules. Some features might not work as documented, and some features could be affected by recent changes to the switch hardware or software.
The following limitations that existed in IOS 11.2(8)SA4 have been removed:
A Catalyst 2900 series XL switch must be turned off before you can insert one of the following modules:
In addition the following commands are not supported:
You can create EtherChannel port groups that consist of Gigabit ports or of 10/100 ports but not both at the same time. Port groups with a mixture of Gigabit Ethernet ports and 10/100 ports are not supported.
In CVSM, the following fields on the Port Configuration page have been changed for this release:
Port | Displays the word Fa (Fast Ethernet), Gi (Gigabit Ethernet) or AT (ATM); the module number: 0 (fixed) 1 (right slot) or 2 (left slot); and the port number. |
Speed | For Gigabit Ethernet ports, the field displays 1000 and is read-only. For ATM ports, the field displays 155 (155 Mbps) and is read-only. |
Flow Control | Enables or disables flow control on Gigabit Ethernet ports. Flow control enables the connected Gigabit Ethernet ports to control traffic rates during congestion. If one port experiences congestion and cannot receive any more traffic, it notifies the other port to stop transmitting until the condition clears. Select Symmetric when you want the local port to perform flow control of the remote port only if the remote port can also perform flow control on the local port. Select Asymmetric when you want the local port to perform flow control on the remote port. For example, if the local port is congested, it notifies the remote port to stop transmitting. The default setting for flow control is Asymmetric. Select Any when the local port can support any level of flow control required by the remote port. This field is displayed only when a Gigabit Ethernet port is present; it does not apply to Fast Ethernet or ATM ports. Select None to disable flow control on the port. |
When a 10/100 port fails to match the duplex setting of an attached device, it can reduce performance or cause link errors. When a Gigabit Ethernet port fails to match the settings of an attached device, the link does not come up, and no statistics are generated.
For the path cost parameter, enter a number from 1 to 655535. The default value for Catalyst 2900 series XL ATM Module ports (155 Mbps) is 14.
You can use the command-line interface (CLI) of the ATM module to map the LAN emulation (LANE) client to a VLAN or bind one or more permanent virtual connections (PVCs) to a VLAN. The VLAN ID is then displayed in the Assigned VLANs column of the VLAN membership page.
In the standard edition version of IOS 11.2(8)SA5, an ATM port is always a static-access port. In Enterprise Edition Software, an ATM port is always a trunk port.
Certain combinations of port features create configuration conflicts (see Table 3). For example, the network port floods all unknown unicast and multicast packets to a port; therefore, port security, which limits traffic on a port, cannot be enabled on the network port. If you try to enable incompatible features, the manager software issues a warning message and prevents you from making the change. Reload the page to refresh the manager software. In Table 3, no means that the two referenced features are not compatible.
| ATM Port | Port Group | Port Security | Monitor Port | Multi-VLAN Port | Network Port | |
|---|---|---|---|---|---|---|
| ATM port | - | No | No | No | No | No |
| Port group | No | - | No | No | Yes | Yes |
| Port security | No | No | - | No | No | No |
| Monitor port | No | No | No | - | No | No |
| Multi-VLAN port | No | Yes | No | No | - | Yes |
| Network port | No | Yes (only source-based destination group) | No | No | Yes | - |
IEEE 802.Q trunks impose some limitations on the trunking strategy for a network. The following restrictions apply when using 802.1Q trunks:
The range of seconds for the span-tree max-age command is now 6 to 200 seconds. If you use this command to set a value greater than this new range in a previous release and upgrade your software to version Cisco IOS 11.2(8)SA4, the switch sets this value to the default: 20 seconds for IEEE STP, 15 seconds for DEC STP, and 10 seconds for IBM STP.
You can use BOOTP to assign IP information to a Catalyst 2900 series XL switch. A database with a list of physical MAC addresses and corresponding IP addresses must be set up on the BOOTP server. Other information, such as the corresponding subnet masks and default gateway addresses can also be stored in the database but are optional. The switch must be able to access the BOOTP server through one of its ports.
If the switch starts and no IP address has been assigned, it transmits a BOOTP broadcast request to all of its ports having a physical connection, requesting a mapping for its physical MAC address. A valid response includes the IP address, which is mandatory, and the subnet mask and the default gateway, which are optional.
The reception of a valid BOOTP response immediately activates the rest of the system protocol suite, without requiring a system reset. The running configuration is set, but the saved configuration in Flash memory is not automatically updated. To save the IP information in the saved-configuration file, log in to the command-line interface and enter the write memory command. The IP information is then preserved, and the switch does not issue BOOTP messages the next time it resets.
This section describes possibly unexpected behavior by Cisco IOS Release 11.2(8)SA5.
%SYS-2-MALLOCFAIL: Memory allocation of 1680 bytes failed from 0x1071C8, pool I/O, alignment 0
Error message %SW_VLAN-4-BAD_VLAN_TIMER_ACTIVE_VALUE: encountered
The product documentation for the Catalyst 2900 series XL switches and
modules is as follows:
Catalyst 2900 Series XL Installation and Configuration Guide
Quick Start: Catalyst 2900 Series XL Cabling and Setup
Catalyst 2900 Series XL Enterprise Edition Software Configuration Guide
Catalyst 2900 Series XL Command Reference (online only)
Catalyst 2900 Series XL Modules Installation Guide
Release Notes for the Catalyst 2900 Series XL Modules
Catalyst 2900 Series XL Gigabit Ethernet Module Installation Guide
Catalyst 2900 Series XL ATM Modules Installation and Configuration Guide
Release Notes for the Catalyst 2900 Series XL ATM Modules
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Posted: Wed May 19 15:13:29 PDT 1999
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