Outlines route processor redundancy and switchover on the router. Covers how redundancy is established, how the active and standby RPs are identified, automatic and manual switchover, behavior during RP reload, standby communication, and the commands used to manage redundancy.
This chapter describes RP redundancy and switchover commands and issues.
Establish RP redundancy
Describes how to establish route processor redundancy by installing RPs into both RP slots of the chassis, which are configured for redundancy by default and cannot have redundancy disabled.
Determine the active RP in a redundant pair
Describes how to identify the active route processor in a redundant pair using the green Active LED on the card faceplate.
Automatic RP switchover
Describes how an automatic switchover from the active route processor to the standby occurs when the active RP encounters a serious system error.
RP redundancy during RP reload
Describes how the active and standby route processors respond when an operator runs the reload command on an active RP.
Manual switchover
Describes how to force a manual switchover from the active route processor to the standby by running the redundancy switchover command or by reloading the active RP with the reload command.
Communicate with a standby RP
Explains how the active route processor synchronizes system software, settings, and configurations with the standby RP, and how an operator can view standby status messages through the console port without a CLI prompt.
Summary of redundancy commands
Lists the Cisco IOS XR commands that display the redundancy status of route processor cards and the command used to force a manual switchover.