Cisco Cisco Packet Data Gateway (PDG)
Interchassis Session Recovery
▀ Updating the Operating System
▄ ASR 5000 System Administration Guide, StarOS Release 16
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Completing the Software Update
Log into the standby chassis and repeat the following tasks to complete the upgrade process on the standby primary
chassis:
chassis:
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.
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.
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.
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.
should indicate Active when switchover is complete.
Checking AAA Monitor Status
If your network deployment requires communication with AAA servers, check the status of communication with AAA
servers as described in
servers as described in
Making Test Calls
Once the chassis state is verified and subscribers are migrated, perform new call testing to make sure calls are
successful.
successful.