Verifying the Software Version
After the system has successfully booted, verify that the new StarOS version is running by executing the Exec
mode
show version
command.
You can run the Exec mode
show build
command to display additional information about the StarOS build
release.
Saving the Configuration File
Use the Exec mode save configuration command to save the currently running configuration to the
/flash
device and to an off-chassis location (external memory device or network URL). The off-chassis copy assures
that you will have a fallback, loadable configuration file should a problem be encountered.
Completing the Update Process
Repeat the following tasks to complete the upgrade process on the standby secondary chassis:
•
Synchronizing File Systems, on page 294
•
Performing Health Checks, on page 293
•
Performing SRP Checks, on page 293
•
Performing BGP Checks, on page 293
Waiting for Session Synchronization
Allow time for session synchronization to occur between the ICSR chassis before preceding to the next steps.
Step 1
Run the
show session recovery status verbose
command on both chassis. Proceed to the next steps only when no errors
are seen in the output of this command.
Step 2
On the standby chassis, run
show srp checkpoint statistics |more
.
Step 3
On active chassis, run
show subs summary |grep Total
.
Step 4
Compare the number of subscribers on the active chassis and the number of Current pre-allocated calls: on the standby
chassis. They should be similar (within 5%). Allow a few minutes for systems to complete synchronization.
Primary System
Perform the tasks described below on the primary (active) ICSR system.
ASR 5500 System Administration Guide, StarOS Release 21.5
295
Interchassis Session Recovery
Primary System