Cisco Cisco Packet Data Gateway (PDG)
Interchassis Session Recovery
Configuring Interchassis Session Recovery (ICSR) ▀
ASR 5000 System Administration Guide, StarOS Release 16 ▄
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Configuring Interchassis Session Recovery (ICSR)
Important:
The ICSR configuration must be the same on the primary and backup chassis. If each chassis has a
different Service Redundancy Protocol (SRP) configuration, the session recovery feature does not function and sessions
cannot be recovered when the active chassis goes out of service.
cannot be recovered when the active chassis goes out of service.
This section describes how to configure basic ICSR on each chassis. For information on commands that configure
additional parameters and options, refer to the Command Line Interface Reference.
additional parameters and options, refer to the Command Line Interface Reference.
Caution:
ICSR should not be configured for chassis supporting L2TP calls.
The procedures described below assume the following:
The chassis have been installed and configured with core network services.
For more configuration information and instructions on configuring services, refer to the respective product
Administration Guide.
Administration Guide.
In addition, the IP address pools must be srp activated.
AAA server is installed, configured and accessible by both chassis.
For more information on configuring the AAA server, refer to the AAA Interface Administration and
Reference.
Reference.
BGP router installed and configured. See Routing for more information on configuring BGP services.
To configure the ICSR on a primary and/or backup chassis:
Step 1
Step 2
Step 3
Step 4
Optional: Disable bulk statistics collection on the standby system by applying the example configuration in
Step 5
Step 6
Save your configuration as described in Verifying and Saving Your Configuration.