Ospf redundancy
Device# show ip ospf 1 nsr Standby RP Operating in duplex mode Redundancy state: STANDBY HOT Peer redundancy state: ACTIVE ISSU negotiation complete ISSU versions compatible Routing Process "ospf 1" with ID 10.1.1.100 NSR configured Checkpoint message sequence number: 3290 Standby synchronization state: synchronized Bulk sync operations: 1 Last