Cisco Cisco Packet Data Interworking Function (PDIF)
Interchassis Session Recovery
Configuring Interchassis Session Recovery (ICSR) ▀
ASR 5500 System Administration Guide, StarOS Release 16 ▄
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Configuring BGP Router and Gateway Address
Use the following example to create the BGP context and network addresses.
configure
context <source_ctxt_name>
router bgp <AS_num>
network <gw_ip_address>
neighbor <neighbor_ip_address> remote-as <AS_num>
end
Notes:
source_ctxt_name is the context where the core network service is configured.
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.
By default 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.