Fast Software Upgrade

Note•For complete syntax and usage information for the commands used in this chapter, see these publications:

http://www.cisco.com/en/US/products/ps11846/prod_command_reference_list.html

•Cisco IOS Release 15.1SY supports only Ethernet interfaces. Cisco IOS Release 15.1SY does not support any WAN features or commands.

•Supported only with redundant supervisor engines. Cisco IOS software is upgraded on the standby RP, and a manual switchover is performed. The new Cisco IOS image can then be upgraded on the other RP.

•During the upgrade process, different images will be loaded on the RPs for a very short period of time. If a switchover occurs during this time, the device will recover in RPR mode.

Tip For additional information about Cisco Catalyst 6500 Series Switches (including configuration examples and troubleshooting information), see the documents listed on this page:

http://www.cisco.com/en/US/products/hw/switches/ps708/tsd_products_support_series_home.html

Participate in the Technical Documentation Ideas forum

To upgrade or downgrade the Cisco IOS image, perform this task:

 
Command
Purpose

Step 1 

Router> enable

Enables privileged EXEC mode (enter your password if prompted).

Step 2 

Router# copy {ftp: | http:// | https:// | rcp: | scp: | tftp:} device:filename

Copies a Cisco IOS image onto the flash device of the active RP.

Step 3 

Router# copy {ftp: | http:// | https:// | rcp: | scp: | tftp:} slavedevice:filename

Copies a Cisco IOS image onto the flash device of the standby RP.

Step 4 

Router# configure terminal

Enters global configuration mode.

Step 5 

Router(config)# no boot system flash [flash-fs:][partition-number:][filename]

(Optional) Clears any existing system flash boot image specification.

Step 6 

Router(config)# boot system flash [flash-fs:][partition-number:][filename]

Specifies the filename of stored image in flash memory.

Step 7 

Router(config)# config-register 0x2102

Sets the configuration register setting to the default value.

Step 8 

Router(config)# exit

Exits global configuration mode and returns the router to privileged EXEC mode.

Step 9 

Router# copy running-config startup-config

Saves the configuration changes to the startup configuration file.

Step 10 

hw-module {module standby_slot} reset

Resets and reloads the standby processor with the specified Cisco IOS image, and executes the image.

Step 11 

redundancy force-switchover

Forces a switchover to the standby RP.

Tip For additional information about Cisco Catalyst 6500 Series Switches (including configuration examples and troubleshooting information), see the documents listed on this page:

http://www.cisco.com/en/US/products/hw/switches/ps708/tsd_products_support_series_home.html

Participate in the Technical Documentation Ideas forum