для Cisco Cisco Packet Data Gateway (PDG)
Interchassis Session Recovery
▀ Overview
▄ ASR 5000 System Administration Guide, StarOS Release 16
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Requirements
ICSR configurations require the following:
Two chassis configured for the same service types. The services must be bound on an SRP-activated loopback
interface.
Both chassis must have identical hardware.
Three contexts:
Redundancy – to configure the primary and backup chassis redundancy.
Source – AAA configuration of the specified nas-ip-address must be the IP address of an interface
bound to an HA, or any core network service configured within the same context.
Destination – to configure monitoring and routing to the PDN.
AAA RADIUS server
Border Gateway Protocol (BGP) – ICSR uses the route modifier to determine the chassis priority.
Important:
ICSR is a licensed Cisco feature. Verify that each chassis has the appropriate license before using
these procedures. To do this, log in to both chassis and execute a show license information command. Look for “Inter-
Chassis Session Recovery”. If the chassis is not licensed, please contact your Cisco account representative.
Chassis Session Recovery”. If the chassis is not licensed, please contact your Cisco account representative.
Caution:
ICSR should not be configured for chassis supporting L2TP calls.
The following figure shows an ICSR network.