Cisco Systems 10000 Series instruction

Upgrading to Cisco IOS Release 12.2(28)SB on a Cisco 10000 Series Router

This document describes how to upgrade a Cisco 10000 series router to Cisco IOS Release 12.2(28)SB on an ESR-PRE2 processor. Four different procedures are available; the choice of which to use depends on the specific system configuration you start from.

Upgrading a system that currently uses an ESR-PRE1 requires a hardware upgrade to an ESR-PRE2. For hardware installation instructions, see the Cisco 10000 Router Performance Routing Engine Installation at the following URL:

http://www.cisco.com/univercd/cc/td/doc/product/aggr/10000/hdwr/3971pr.htm

Technical Support

The Cisco Technical Support Website provides online documents and tools for troubleshooting and resolving technical issues with Cisco products and technologies. Support is available 24 hours a day,

365 days a year, at this URL:

http://www.cisco.com/techsupport

This web page has a link for email or phone technical support.

Note All the procedures in this document are service-affecting. These procedures can require a hardware replacement, forced switchover of the active PRE, or software reload. At some point during each process, the router will not be available for user traffic.

Corporate Headquarters:

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