Tracing Restart Signaling-Based Helper Mode Events for OSPF Graceful Restart
Junos OS provides a tracing option to log restart signaling-based
helper mode events for OSPF graceful restart. To enable tracing for
restart signaling-based helper mode events, include the traceoptions
flag restart-signaling statement at the [edit protocols
ospf] hierarchy level.
To enable tracing for restart signaling-based events:
The logs are saved to the ospf-log file in the /var/log folder.
Viewing the Log File
To view the restart signaling-based events from the log file, type:
user@host> file show /var/log/ospf-log | match “restart signaling” Jun 25 14:44:08.890216 OSPF Restart Signaling: Start helper mode for nbr ip 14.19.3.2 id 10.10.10.1 Jun 25 14:44:11.358636 OSPF restart signaling: Received DBD with R bit set from nbr ip=14.19.3.2 id=10.10.10.1. Start oob-resync. Jun 25 14:44:11.380198 OSPF restart signaling: Received DBD with LR bit on from nbr ip=14.19.3.2 id=10.10.10.1. Save its oob-resync capability 1 Jun 25 14:44:11.467200 OSPF restart signaling: nbr fsm for nbr ip=14.19.3.2 id=10.10.10.1 moving to state Full. Reset oob-resync parameters.