Cisco Catalyst 2900 XL Series Switches

Table Of Contents

Release Notes for the 4-MB Catalyst 2900 Series XL Switches, Cisco IOS Release 11.2(8.11)SA6

Contents

Resolved Caveat

Which Software Files to Download from Cisco.com

Related Documentation

Obtaining Documentation

Cisco.com

Documentation CD-ROM

Ordering Documentation

Documentation Feedback

Obtaining Technical Assistance

Cisco TAC Website

Opening a TAC Case

TAC Case Priority Definitions

Obtaining Additional Publications and Information

Release Notes for the 4-MB Catalyst 2900 Series XL Switches, Cisco IOS Release 11.2(8.11)SA6

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July 2003

Cisco IOS Release 11.2(8.11)SA6 runs on Catalyst 2900 XL switches with 4-MB CPU DRAM. This release does not run on Catalyst 2900 series XL switches with 8-MB CPU DRAM, Catalyst 2900 series Long-Reach Ethernet (LRE) XL switches with 16-MB CPU DRAM, or Catalyst 3500 XL switches.

These release notes include important information about this Cisco IOS release and any caveats that apply to it. See the "Related Documentation" section for the complete list of switch documentation.

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Note Use this release notes document in conjunction with the information in the Release Notes for the 4-MB Catalyst 2900 Series XL, Cisco IOS Release 11.2(8.6)SA6.

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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.

Contents

This document has these sections:

•Resolved Caveat

•Which Software Files to Download from Cisco.com

Resolved Caveat

This configuration caveat was resolved in this release:

•CSCea02355

Cisco routers and switches running Cisco IOS software and configured to process Internet Protocol version 4 (IPv4) packets are vulnerable to a Denial of Service (DoS) attack. A rare sequence of crafted IPv4 packets sent directly to the device may cause the input interface to stop processing traffic once the input queue is full. No authentication is required to process the inbound packet. Processing of IPv4 packets is enabled by default. Devices running only IP version 6 (IPv6) are not affected. A workaround is available.

Cisco has made software available, free of charge, to correct the problem.

This advisory is available at

http://www.cisco.com/warp/public/707/cisco-sa-20030717-blocked.shtml

Which Software Files to Download from Cisco.com

New software releases are posted on Cisco.com and are also available through authorized resellers. From Cisco.com, you can also download a TFTP server application to copy the switch software from your PC to the switch.

Table 1 describes the file extensions and what they mean for the upgrade procedure. Table 2 lists the software files that you need from Cisco.com.

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Note We recommend that you download the combined .tar file that contains the image file and the HTML files. The procedures in this document are for upgrading a switch by using the combined .tar file.

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Table 1 Possible Extensions for Cisco IOS Software Files

Extension	Description
.tar	A compacted file from which you can extract files by using the tar privileged EXEC command. There are two types of .tar files: •A combined .tar file that contains both the Cisco IOS image file and the HTML files. •An HTML .tar file that has the letters HTML in its name and contains just the HTML files for the Cisco IOS release. From the CLI, you can upgrade the switch software by using this HTML file and the Cisco IOS image file.
.bin	The Cisco IOS image file and the LRE firmware file that you can copy to the switch through TFTP.

Table 2 Catalyst 2900 XL Switch Cisco IOS Software Files 

Filename	Description
c2900XL-hs-mz-112.8.11-SA6.tar	Cisco IOS image and HTML files
c2900XL-html.112.8.11-SA6.tar	HTML files
c2900XL-hs-mz-112.8.11-SA6.bin	Cisco IOS image-only file

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Note For complete instructions on how to upgrade a 4-MB Catalyst 2900 Series XL switch, refer the Release Notes for the 4-MB Catalyst 2900 Series XL, Cisco IOS Release 11.2(8.6)SA6.

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Related Documentation

These publications provide more information about the switches and the switch software:

•Catalyst 2900 Series XL and Catalyst 3500 Series XL Software Configuration Guide (order number DOC-786511=)

•Catalyst 2900 Series XL and Catalyst 3500 Series XL Command Reference (order number DOC-7812155=)

•Cluster Management Suite (CMS) online help (available only from the switch CMS software)

•Catalyst 2900 Series XL Hardware Installation Guide (order number DOC-786461=)

•Catalyst 3500 Series XL Hardware Installation Guide (order number DOC-786456=)

•Catalyst 2900 Series XL Modules Installation Guide (order number DOC-CAT2900-IG=)

•Catalyst 2900 Series XL ATM Modules Installation and Configuration Guide (order number DOC-785472=)

Obtaining Documentation

Cisco provides several ways to obtain documentation, technical assistance, and other technical resources. These sections explain how to obtain technical information from Cisco Systems.

Cisco.com

You can access the most current Cisco documentation on the World Wide Web at this URL:

http://www.cisco.com/univercd/home/home.htm

You can access the Cisco website at this URL:

http://www.cisco.com

International Cisco websites can be accessed from this URL:

http://www.cisco.com/public/countries_languages.shtml

Documentation CD-ROM

Cisco documentation and additional literature are available in a Cisco Documentation CD-ROM package, which may have shipped with your product. The Documentation CD-ROM is updated regularly and may be more current than printed documentation. The CD-ROM package is available as a single unit or through an annual or quarterly subscription.

Registered Cisco.com users can order a single Documentation CD-ROM (product number DOC-CONDOCCD=) through the Cisco Ordering tool:

http://www.cisco.com/en/US/partner/ordering/ordering_place_order_ordering_tool_launch.html

All users can order annual or quarterly subscriptions through the online Subscription Store:

http://www.cisco.com/go/subscription

Ordering Documentation

You can find instructions for ordering documentation at this URL:

http://www.cisco.com/univercd/cc/td/doc/es_inpck/pdi.htm

You can order Cisco documentation in these ways:

•Registered Cisco.com users (Cisco direct customers) can order Cisco product documentation from the Networking Products MarketPlace:

http://www.cisco.com/en/US/partner/ordering/index.shtml

•Nonregistered Cisco.com users can order documentation through a local account representative by calling Cisco Systems Corporate Headquarters (California, USA.) at 408 526-7208 or, elsewhere in North America, by calling 800 553-NETS (6387).

Documentation Feedback

You can submit comments electronically on Cisco.com. On the Cisco Documentation home page, click Feedback at the top of the page.

You can send your comments in e-mail to bug-doc@cisco.com.

You can submit comments by using the response card (if present) behind the front cover of your document or by writing to the following address:

Cisco Systems
Attn: Customer Document Ordering
170 West Tasman Drive
San Jose, CA 95134-9883

We appreciate your comments.

Obtaining Technical Assistance

For all customers, partners, resellers, and distributors who hold valid Cisco service contracts, the Cisco Technical Assistance Center (TAC) provides 24-hour, award-winning technical support services, online and over the phone. Cisco.com features the Cisco TAC website as an online starting point for technical assistance.

Cisco TAC Website

The Cisco TAC website (http://www.cisco.com/tac) provides online documents and tools for troubleshooting and resolving technical issues with Cisco products and technologies. The Cisco TAC website is available 24 hours a day, 365 days a year.

Accessing all the tools on the Cisco TAC website requires a Cisco.com user ID and password. If you have a valid service contract but do not have a login ID or password, register at this URL:

http://tools.cisco.com/RPF/register/register.do

Opening a TAC Case

The online TAC Case Open Tool (http://www.cisco.com/tac/caseopen) is the fastest way to open P3 and P4 cases. (Your network is minimally impaired or you require product information). After you describe your situation, the TAC Case Open Tool automatically recommends resources for an immediate solution. If your issue is not resolved using these recommendations, your case will be assigned to a Cisco TAC engineer.

For P1 or P2 cases (your production network is down or severely degraded) or if you do not have Internet access, contact Cisco TAC by telephone. Cisco TAC engineers are assigned immediately to P1 and P2 cases to help keep your business operations running smoothly.

To open a case by telephone, use one of the following numbers:

Asia-Pacific: +61 2 8446 7411 (Australia: 1 800 805 227)
EMEA: +32 2 704 55 55
USA: 1 800 553-2447

For a complete listing of Cisco TAC contacts, go to this URL:

http://www.cisco.com/warp/public/687/Directory/DirTAC.shtml

TAC Case Priority Definitions

To ensure that all cases are reported in a standard format, Cisco has established case priority definitions.

Priority 1 (P1)—Your network is "down" or there is a critical impact to your business operations. You and Cisco will commit all necessary resources around the clock to resolve the situation.

Priority 2 (P2)—Operation of an existing network is severely degraded, or significant aspects of your business operation are negatively affected by inadequate performance of Cisco products. You and Cisco will commit full-time resources during normal business hours to resolve the situation.

Priority 3 (P3)—Operational performance of your network is impaired, but most business operations remain functional. You and Cisco will commit resources during normal business hours to restore service to satisfactory levels.

Priority 4 (P4)—You require information or assistance with Cisco product capabilities, installation, or configuration. There is little or no effect on your business operations.

Obtaining Additional Publications and Information

Information about Cisco products, technologies, and network solutions is available from various online and printed sources.

•The Cisco Product Catalog describes the networking products offered by Cisco Systems, as well as ordering and customer support services. Access the Cisco Product Catalog at this URL:

http://www.cisco.com/en/US/products/products_catalog_links_launch.html

•Cisco Press publishes a wide range of networking publications. Cisco suggests these titles for new and experienced users: Internetworking Terms and Acronyms Dictionary, Internetworking Technology Handbook, Internetworking Troubleshooting Guide, and the Internetworking Design Guide. For current Cisco Press titles and other information, go to Cisco Press online at this URL:

http://www.ciscopress.com

•Packet magazine is the Cisco quarterly publication that provides the latest networking trends, technology breakthroughs, and Cisco products and solutions to help industry professionals get the most from their networking investment. Included are networking deployment and troubleshooting tips, configuration examples, customer case studies, tutorials and training, certification information, and links to numerous in-depth online resources. You can access Packet magazine at this URL:

http://www.cisco.com/go/packet

•iQ Magazine is the Cisco bimonthly publication that delivers the latest information about Internet business strategies for executives. You can access iQ Magazine at this URL:

http://www.cisco.com/go/iqmagazine

•Internet Protocol Journal is a quarterly journal published by Cisco Systems for engineering professionals involved in designing, developing, and operating public and private internets and intranets. You can access the Internet Protocol Journal at this URL:

http://www.cisco.com/en/US/about/ac123/ac147/about_cisco_the_internet_protocol_journal.html

•Training—Cisco offers world-class networking training. Current offerings in network training are listed at this URL:

http://www.cisco.com/en/US/learning/index.html

This document is to be used in conjunction with the documents listed in the Related Documentation section.

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