Verifying Graceful Restart Operation - Juniper EX9200 Features Manual

High Availability Feature Guide for EX9200 Switches
Tracing Restart Signaling-Based Helper Mode Events for OSPF Graceful Restart
Viewing the Log File
Related
Documentation

Verifying Graceful Restart Operation

220
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
hierarchy level.
To enable tracing for restart signaling-based events:
Create a log file for saving the log.
1.
[edit protocols ospf]
user@host# set traceoptions file ospf-log
where is the name of the log file.
ospf-log
Enable tracing for restart signaling-based helper mode events.
2.
[edit protocols ospf]
user@host# set traceoptions flag restart-signaling
Commit the configuration.
3.
[edit protocols ospf]
user@host# commit
The logs are saved to the ospf-log
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.
Understanding Restart Signaling-Based Helper Mode Support for OSPF Graceful Restart
Example: Managing Helper Modes for OSPF Graceful Restart on page 112
helper-disable (OSPF)
This topic contains the following sections:
Graceful Restart Operational Mode Commands on page 221
Verifying BGP Graceful Restart on page 221
statement at the
file in the /var/log folder.
Copyright © 2017, Juniper Networks, Inc.
[edit protocols ospf]