Table Of Contents
Release Notes for Catalyst 2900 Series XL
ATM Modules, Version 12.1(12)Downloading Files from Cisco.com
Displaying the IP Address of the TFTP Server
Upgrading the Module Software by Using the CLI
Upgrading the Module Software by Using VSM
Obtaining Technical Assistance
Contacting TAC by Using the Cisco TAC Website
Release Notes for Catalyst 2900 Series XL
ATM Modules, Version 12.1(12)
January 2002
Cisco IOS Release 12.1(12) runs on Catalyst 2900 series XL Asynchronous Transfer Mode (ATM) modules.
These release notes include important information about this IOS release and any limitations, restrictions, and caveats that apply to it. For the complete list of Catalyst 2900 XL switch documentation, see the "Related Documentation" section.
Contents
These release notes contain these topics:
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"Hardware Requirements" section
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Hardware Requirements
The ATM modules work with modular Catalyst 2900 XL switches that use firmware version 11.2(8)SA5 or later. You can check the installed firmware version by using the show version privileged EXEC command on the switch. For firmware upgrade procedures, refer to the Cisco IOS Desktop Switching Software Configuration Guide. You can access this document on Cisco.com.
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Upgrading the Module Software
You can download new ATM module software releases from Cisco.com.
Downloading Files from Cisco.com
Follow these steps to download the new software and, if necessary, the Trivial File Transfer Protocol (TFTP) server application from Cisco.com to your management station:
Step 1
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Step 2
Step 3
http://www.cisco.com/public/sw-center/lan/cat2900XL-planner.shtml.
Step 4
The readme.txt file describes how to download the TFTP server application. New features provided by the software are not available until you reload the software.
Displaying the IP Address of the TFTP Server
Before you can download new software to your module, you need to enter the IP address of your PC or workstation on the System Management page. If you are using the Cisco TFTP server, the PC IP address is displayed on the application title bar.
If you do not know the IP address, follow one of these steps to display it:
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Upgrading the Module Software by Using the CLI
Follow these steps to upgrade the module software:
Step 1
Switch> enableStep 2
Password: <password> Switch#Step 3
Switch# copy tftp://server//filename slot1:bootSwitch# copy tftp://server//filename slot2:boot
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Step 4
Switch# reload
Upgrading the Module Software by Using VSM
To upgrade the module software by using Visual Switch Manager (VSM), follow these steps on the VSM System Configuration page:
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Step 1
Step 2
This might be a name like C29atm-m-m-121-1.bin. Do not enter the path.
Step 3
The upgrade can take several minutes. The TFTP server window displays a message when the upgrade is complete.
Step 4
Installation Notes
You must tighten the screws after inserting the module in the switch.
Documentation Notes
The Catalyst 2900 Series XL Modules Install and Configure Guide states the incorrect encapsulation type in Step 4, Chapter 3, "Configuration Example for an RFC-1483 PVC." This is the corrected text for Step 4.
Step 4 Create PVCs for RFC 1483 by entering the atm pvc command:
atm(config-if)#atm pvc 100 0 100 aal5snap 20000 20000 32
atm(config-if)#atm pvc 101 0 101 aal5snap
atm(config-if)#atm pvc 200 0 200 aal5snapThe online document contains the corrected procedure.
Limitations and Restrictions
You should review this section before you begin working with the switches and ATM modules. Some features might not work as documented, and some features could be affected by recent changes to the switch hardware or software.
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Important Notes
This section includes information related to previous Cisco IOS software releases.
Cisco IOS Release 12.1(4)
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Cisco IOS Release 12.0(7)XF
These features are supported on the ATM modules:
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MPOA provides a standards-based Layer 3 switching solution for ATM networks. MPOA enables the fast routing of internetwork-layer packets across a nonbroadcast multiaccess (NBMA) network.
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FSSRP provides an immediate backup for a LANE server and a LANE broadcast-and-unknown server (BUS). You must enter the lane config fssrp command on all LANE configuration servers (LECSs) to enable FSSRP operation.
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Cisco IOS Release 12.0(5)
These features are supported on the ATM modules:
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Each ATM trunk supports a maximum of 64 active virtual VLANs at one time. For IOS Release 12.0(5)XP or earlier, you must use the Enterprise Edition Software to configure multiple VLANs. If you use the standard edition software, you can only configure one VLAN.
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The ATM module supports multiple ELANs. You can logically group users on Ethernet and ATM networks by mapping VLANs on the Ethernet network to ELANs on the ATM network.
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The ATM modules support multiple VLAN mappings for RFC 1483 logical-link control (LLC) encapsulation for bridged Ethernet (IEEE 802.3). With RFC 1483, you can transport Ethernet frames over a maximum of 1024 PVCs.
Resolved Caveats
These caveats are resolved in Cisco IOS Release 12.1(12):
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Catalyst 2900 XL ATM modules reject non-unspecified bit rate (UBR) LANE data direct switched virtual connections (SVCs). This ensures that third-party switches do not use shaped data direct virtual connections (VCs) with Catalyst 2900 XL ATM modules.
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When configuring an ATM PVC with traffic shaping parameters and then using the ATM bind command, any change or modification of the traffic shaping parameters no longer deletes the ATM PVC bind statement.
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A Catalyst 2900 XL switch with an ATM module installed and configured with a PVC bound to a virtual LAN (VLAN) does not support bridged 1483 spanning-tree Bridge Protocol Data Units (BPDUs), as specified in RFC 1483 para. 4.2, with the format LLC=0xAAAA03, OUI=0x0080C2, and PID=0x000E. If the switch is connected to a device that sends BPDUs in this format, the switch does not recognize the BPDUs, which can result in spanning-tree loops in redundant configurations.
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A Catalyst 2900 XL ATM module no longer reports a LANE control-queue threshold-drop condition as frame errors. The threshold-drop condition is reported when you use the show control relay privileged EXEC command.
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A Catalyst 2900 XL ATM module with a configured LANE client now responds to LANE flush requests on data direct VCs.
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The Catalyst 2900 XL ATM module now correctly forwards incoming frames that are less than 64 bytes. The module pads the smaller frames to the Ethernet minimum of 64 bytes before passing the frames to the switch for forwarding.
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Catalyst 2900 XL ATM modules have been reported as continuously resetting under certain conditions when connected directly to a SONET/SDH ring. Refer to the Field Notice at this web location for more information:
http://www.cisco.com/warp/public/770/fn14075.shtml
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The Catalyst 2900 XL ATM module and the connected LECs now shut down immediately when the other side of the ATM interface on the LS101 switch is shut down.
Related Documentation
These documents provide complete information about the switch and are available from this Cisco.com site:
http://www.cisco.com/univercd/cc/td/doc/product/lan/c2900xl/index.htm
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Obtaining Documentation
The following sections provide sources for obtaining documentation from Cisco Systems.
World Wide Web
You can access the most current Cisco documentation on the World Wide Web at the following sites:
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Cisco Documentation CD-ROM
Cisco documentation and additional literature are available in a CD-ROM package, which ships with your product. The Cisco Documentation CD-ROM is updated monthly and may be more current than printed documentation. The CD-ROM package is available as a single unit or as an annual subscription.
Ordering Documentation
Cisco documentation is available in the following ways:
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http://www.cisco.com/public/ordsum.html
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http://www.cisco.com/go/subscription
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Documentation Feedback
If you are reading Cisco product documentation on the World Wide Web, you can submit technical comments electronically. Click Feedback in the toolbar and select Documentation. After you complete the form, click Submit to send it to Cisco.
You can e-mail your comments to bug-doc@cisco.com.
To submit your comments by mail, for your convenience many documents contain a response card behind the front cover. Otherwise, you can mail your comments to the following address:
Cisco Systems, Inc.
Document Resource Connection
170 West Tasman Drive
San Jose, CA 95134-9883We appreciate your comments.
Obtaining Technical Assistance
Cisco provides Cisco.com as a starting point for all technical assistance. Customers and partners can obtain documentation, troubleshooting tips, and sample configurations from online tools. For Cisco.com registered users, additional troubleshooting tools are available from the TAC website.
Cisco.com
Cisco.com is the foundation of a suite of interactive, networked services that provides immediate, open access to Cisco information and resources at anytime, from anywhere in the world. This highly integrated Internet application is a powerful, easy-to-use tool for doing business with Cisco.
Cisco.com provides a broad range of features and services to help customers and partners streamline business processes and improve productivity. Through Cisco.com, you can find information about Cisco and our networking solutions, services, and programs. In addition, you can resolve technical issues with online technical support, download and test software packages, and order Cisco learning materials and merchandise. Valuable online skill assessment, training, and certification programs are also available.
Customers and partners can self-register on Cisco.com to obtain additional personalized information and services. Registered users can order products, check on the status of an order, access technical support, and view benefits specific to their relationships with Cisco.
To access Cisco.com, go to the following website:
http://www.cisco.com
Technical Assistance Center
The Cisco TAC website is available to all customers who need technical assistance with a Cisco product or technology that is under warranty or covered by a maintenance contract.
Contacting TAC by Using the Cisco TAC Website
If you have a priority level 3 (P3) or priority level 4 (P4) problem, contact TAC by going to the TAC website:
http://www.cisco.com/tac
P3 and P4 level problems are defined as follows:
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In each of the above cases, use the Cisco TAC website to quickly find answers to your questions.
To register for Cisco.com, go to the following website:
http://www.cisco.com/register/
If you cannot resolve your technical issue by using the TAC online resources, Cisco.com registered users can open a case online by using the TAC Case Open tool at the following website:
http://www.cisco.com/tac/caseopen
Contacting TAC by Telephone
If you have a priority level 1(P1) or priority level 2 (P2) problem, contact TAC by telephone and immediately open a case. To obtain a directory of toll-free numbers for your country, go to the following website:
http://www.cisco.com/warp/public/687/Directory/DirTAC.shtml
P1 and P2 level problems are defined as follows:
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This document is to be used in conjunction with the documents listed in the "Related Documentation" section.
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