Enabling Nonstop Routing For Ospfv2 - Cisco ASR 9000 Series Routing Configuration Manual

Implementing OSPF
Command or Action
Step 11 sham-link source-address destination-address
Example:
RP/0/RSP0/CPU0:router(config-ospf-vrf-ar)# sham-link
10.0.0.1 10.0.0.3
Step 12 cost cost
Example:
RP/0/RSP0/CPU0:router(config-ospf-vrf-ar-sl)# cost
76
Step 13 commit

Enabling Nonstop Routing for OSPFv2

This optional task describes how to enable nonstop routing (NSR) for OSPFv2 process. NSR is disabled by
default. When NSR is enabled, OSPF process on the active RP synchronizes all necessary data and states with
the OSPF process on the standby RP. When the switchover happens, OSPF process on the newly active RP
has all the necessary data and states to continue running and does not require any help from its neighbors.
Step 1 configure
Enter the global configuration mode.
Step 2 router ospf instance-id
Example:
RP/0/RSP0/CPU0:router(config)# router ospf isp
Enable OSPF routing for the specified routing process. In this example, the OSPF instance is called isp.
Step 3
nsr
Example:
RP/0/RSP0/CPU0:router(config-ospf)# nsr
Enable NSR for the OSPFv2 process.
Step 4 commit
Commit your configuration.
Cisco ASR 9000 Series Aggregation Services Router Routing Configuration Guide, Release 5.3.x
Enabling Nonstop Routing for OSPFv2
Purpose
Configures a point-to-point unnumbered interface between
two VPN sites.
Explicitly specifies the cost of sending a packet on an
OSPF interface. The specified cost overrides the
auto-costing calculated default value for interfaces.
469