Configuring ospf graceful restart timer, Displaying ospf graceful restart information – Brocade BigIron RX Series Configuration Guide User Manual
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BigIron RX Series Configuration Guide
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Displaying OSPF information
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Configuring OSPF graceful restart timer
The OSPF graceful restart timer specifies the maximum amount of time an OSPF restarting router
will take to re-establish OSPF adjacencies and relearn OSPF routes. This value will be sent to the
neighboring routers in the grace LSA packets. Configure the timer by entering a command such as
the following.
BigIron RX(config-ospf-router)#graceful-restart restart-time 120
Syntax: graceful-restart restart-time <seconds>
Enter 10 – 1800 for seconds. The default is 120.
Displaying OSPF graceful restart information
Displaying if OSPF graceful restart is enabled
Use the show ip ospf data grace-link-state and the show ip ospf neighbor commands to display
information about OSPF graceful restart.
The following is an example of what the show ip ospf data grace-link-state command that is
displayed during a restart event. The output is blank if the report is requested while the OSPF
router is in normal operation.
The show ip ospf neighbor command displays the following information during normal operation.
The show ip ospf neighbor command displays the following information during a restart event on a
helper router. Note the "<in graceful restart state...>" entry appears only during restart. It does not
appear once restart is complete.
BigIron RX# show ip ospf data grace-link-state
Area Interface Router ID Type Age Restart-Time Seq
0 3/27 12.1.0.14 9 27 120 0x80000001
0 v31 12.1.0.14 9 27 120 0x80000001
0 v32 12.1.0.14 9 27 120 0x80000001
0 v33 12.1.0.14 9 27 120 0x80000001
0 v34 12.1.0.14 9 27 120 0x80000001
BigIron RX# show ip ospf neighbor
Port Address Pri State Neigh Address Neigh ID Ev Opt Cnt
3/1 30.1.0.5 0 FULL/OTHER 30.1.0.13 30.0.0.13 5 2 0
3/27 25.27.0.8 1 FULL/DR 25.27.0.14 12.1.0.14 20 2 0
v31 21.23.0.5 1 FULL/DR 21.23.0.14 12.1.0.14 15 2 0
v32 22.24.0.5 1 FULL/DR 22.24.0.14 12.1.0.14 15 2 0
v33 23.25.0.5 1 FULL/DR 23.25.0.14 12.1.0.14 15 2 0
v34 24.26.0.5 1 FULL/DR 24.26.0.14 12.1.0.14 15 2 0