Symptom
NSR may fail to re-synchronise on the standby processor.
RP/0/8/CPU0:HOSTNAME#show red
Redundancy information for node 0/8/CPU0:
==========================================
Node 0/8/CPU0 is in ACTIVE role
Partner node (0/7/CPU0) is in STANDBY role
Standby node in 0/7/CPU0 is ready
Standby node in 0/7/CPU0 is not NSR-ready
Details
--------
Current active redcon state: 4 (I_READY)
All not-ready bits clear - standby should be ready
Current active redcon state for NSR: Not ready
Reason for standby not NSR-ready
1046 0/8/CPU0 bgp BGP NSR sessions not synchronized
Not ready set Sat May 6 6:03:38 2012: 5 weeks, 5 days, 6 hours, 32 minutes ago
Conditions
Router running IOS-XR and recovering from unusual error situation
such as packet memory shortage or communication errors with standby node.
Recovery
Restart the bgp process on the standby RP processor.