Primary Chassis
Completing the Software Update
Log into the standby chassis and repeat the following tasks to complete the upgrade process on the standby
primary chassis:
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Initiating an SRP Switchover
An SRP switchover places the primary chassis in active mode and makes the backup chassis active. The
primary chassis is now processing sessions with the upgraded software.
Step 1
On the backup chassis run the srp initiate-switchover command. All existing sessions will be migrated to the primary
chassis and it begins servicing new session requests. Allow the switchover process to complete.
Step 2
On the backup chassis, run the show srp info command. Chassis State should indicate Standby when switchover is
complete.
Step 3
On the primary chassis, confirm the switchover is complete by running the show srp info command. Chassis State should
indicate Active when switchover is complete.
Making Test Calls
Once the chassis state is verified and subscribers are migrated, perform new call testing to make sure calls
are successful.
ASR 5000 System Administration Guide, StarOS Release 21.1
354
Updating the Boot Record, on page 351
Reloading the Chassis, on page 352
Updating the Configuration File, on page 352
Verifying the Software Version, on page 352
Saving the Configuration File, on page 352
Synchronizing File Systems, on page 351
Performing Health Checks, on page 350
Performing SRP Checks, on page 350
Performing BGP Checks, on page 351
Waiting for Session Synchronization, on page 353
Interchassis Session Recovery