Cisco Cisco Packet Data Gateway (PDG)
Session Recovery
▀ Configuring VPC-VSM to Support Session Recovery
▄ VPC-VSM System Administration Guide, StarOS Release 19
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Enabling Session Recovery on an In-Service Instance
When enabling session recovery on a VPC-VSM instance that already has a saved configuration, the session recovery
commands are automatically placed before any service configuration commands in the configuration file.
commands are automatically placed before any service configuration commands in the configuration file.
To enable the session recovery feature on an in-service instance, follow the procedure below. This procedure assumes
that you begin at the StarOS CLI Exec mode prompt.
that you begin at the StarOS CLI Exec mode prompt.
Step 1
At the Exec mode prompt, verify that the session recovery feature is enabled with a feature use license by running the
show license info command:
show license info command:
Important:
If the current status of the Session Recovery feature is Disabled, You cannot enable this
feature until a license key is installed in the system.
Step 2
Use the following configuration example to enable session recovery.
configure
require session recovery
end
Important:
This feature does not take effect until after the VPC-VSM instance has been restarted.
Step 3
Save your configuration as described in the Verifying and Saving Your Configuration chapter.
Step 4
Perform a StarOS restart by entering the reload command:
The following prompt appears:
Are you sure? [Yes|No]:
Confirm your desire to perform a StarOS restart by entering yes.
When restarted, StarOS enables session recovery and creates all mirrored “standby-mode” tasks and other operations
automatically.
automatically.
Step 5
After StarOS has been restarted, you should verify its preparedness to support this feature as described in
Important:
More advanced users may opt to simply insert the require session recovery command
syntax into an existing configuration file using a text editor or other means, and then applying the
configuration file manually. Exercise caution when doing this to ensure that this command is placed among
the first few lines of any existing configuration file; it must appear before the creation of any non-local
context.
configuration file manually. Exercise caution when doing this to ensure that this command is placed among
the first few lines of any existing configuration file; it must appear before the creation of any non-local
context.
Disabling the Session Recovery Feature
To disable the session recovery feature on a VPC-VSM instance, enter the no require session recovery command from
the Global Configuration mode prompt.
the Global Configuration mode prompt.