Icsr Operation; Chassis Initialization; Chassis Operation; Chassis Communication - Cisco ASR 5500 System Administration Manual
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Also See for ASR 5500:
- Administration manual (410 pages) ,
- Installation manual (192 pages) ,
- Installation procedure overview (6 pages)
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Interchassis Session Recovery
The following figure shows an ICSR network.
ICSR Operation
This section shows operational flows for ICSR.
The following figure shows an ICSR process flow due to a primary failure.
Figure 9: ICSR Process Flow (Primary Failure)
The following figure shows an ICSR process flow due to a manual switchover.
Figure 10: ICSR Process Flow (Manual Switchover)
Chassis Initialization
Chassis Operation
This section describes how the chassis communicate, maintain subscriber sessions, and perform chassis
switchover.
Chassis Communication
Chassis Switchover
Configuring ICSR
Important
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.
Important
The procedures described below assume the following:
• The chassis have been installed and configured with core network services.
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.
For releases prior to StarOS 17.0, ICSR should not be configured for chassis supporting L2TP calls.
For more configuration information and instructions on configuring services, refer to the respective
product Administration Guide.
ASR 5500 System Administration Guide, StarOS Release 21.5
ICSR Operation
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Troubleshooting
