Cisco Cisco Packet Data Gateway (PDG) Ratgeber Für Administratoren
Interchassis Session Recovery
▀ Configuring Interchassis Session Recovery (ICSR)
▄ Cisco ASR 5500 System Administration Guide
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Configuring the SRP Context for BGP
Use the following example to configure the BGP context and IP addresses in the SRP context.
configure
context srp_ctxt_name
service-redundancy-protocol
monitor bgp context source_ctxt_name neighbor_ip_address
end
neighbor_ip_address can be entered in IPv4 dotted-decimal or IPv6 colon-separated-hexadecimal notation. Multiple IP
addresses can be added per context as IPv4 and/or IPv6 IP addresses.
addresses can be added per context as IPv4 and/or IPv6 IP addresses.
An ICSR failover is triggered when all BGP peers within a context are down.
Optionally, you can configure SRP peer groups within a context. ICSR failover would then occur if all peers within a
group fail. This option is useful in deployments in which a combination of IPv4 and IPv6 peers are spread across
multiple paired VLANs, and IPv4 or IPv6 connectivity is lost by all members of a peer group.
group fail. This option is useful in deployments in which a combination of IPv4 and IPv6 peers are spread across
multiple paired VLANs, and IPv4 or IPv6 connectivity is lost by all members of a peer group.
A sample configuration for SRP peer groups within a context (“PGWin”) appears below.
monitor bgp context PGWin 10.1.1.16 group 1
monitor bgp context PGWin 10.1.1.17 group 1
monitor bgp context PGWin 69.2.215.0 group 2
monitor bgp context PGWin 69.2.215.1 group 2
monitor bgp context PGWin 2001:4333:201:1102:103:2a1:: group 3
monitor bgp context PGWin 2001:4333:201:1102:103:2a1:0:1 group 3
monitor bgp context PGWin 10.1.1.17 group 1
monitor bgp context PGWin 69.2.215.0 group 2
monitor bgp context PGWin 69.2.215.1 group 2
monitor bgp context PGWin 2001:4333:201:1102:103:2a1:: group 3
monitor bgp context PGWin 2001:4333:201:1102:103:2a1:0:1 group 3
In the above sample configuration, ICSR failover would occur if both addresses in group 1, 2 or 3 lost connectivity.
For additional information refer to the description of the monitor bgp, monitor diameter and monitor authentication-
probe commands in the Service Redundancy Protocol Configuration Mode Commands chapter of the Command Line
Interface Reference.
probe commands in the Service Redundancy Protocol Configuration Mode Commands chapter of the Command Line
Interface Reference.
Verifying BGP Configuration
Verify your BGP configuration by entering the show srp monitor bgp command (Exec Mode).
Modifying the Destination Context for ICSR
To modify the destination context of core service:
Step 1
Add the BGP router and configure the gateway IP address, neighbor IP address, remote IP address in the destination
context where the core network service is configured, by applying the example configuration in
context where the core network service is configured, by applying the example configuration in
Step 2
Configure the service redundancy context with BGP neighbor context and IP address to monitor the BGP link activity
by applying the example configuration in
by applying the example configuration in
Step 3