28.7.4 Checking for graceful restart

<Structure of this section>

(1) Checking the operation mode and progress status

You can check the status of the graceful restart functionality by executing the show ipv6 ospf operation command.

Figure 28-9: Result of executing show ipv6 ospf command
>show ipv6 ospf Date 20XX/07/14 12:00:00 UTC OSPFv3 protocol: ON Domain: 1 Router ID: 172.16.1.1 Distance: Intra Area: 10, Inter Area: 10, External: 150 Flags: <AreaBorder ASBoundary> SPF Interval: 7s, SPF Delay: 3s Graceful Restart: Helper Helper Status : Finished 20XX/07/08 14:12:22 Area: 0, Interfaces: 2 Network Range State 3ffe:501:ffff:100::/64 DoNotAdvertise Area: 1, Interfaces: 1 Network Range State - -

Figure 28-9: Result of executing show ipv6 ospf command

>show ipv6 ospf
Date 20XX/07/14 12:00:00 UTC
OSPFv3 protocol: ON
 
Domain: 1
Router ID: 172.16.1.1
Distance:
  Intra Area: 10, Inter Area: 10, External: 150
Flags: <AreaBorder ASBoundary>
SPF Interval: 7s, SPF Delay: 3s
Graceful Restart: Helper
    Helper Status : Finished  20XX/07/08 14:12:22
Area: 0, Interfaces: 2
    Network Range                                 State
    3ffe:501:ffff:100::/64                        DoNotAdvertise
Area: 1, Interfaces: 1
    Network Range                                 State
    -                                             -

(2) Verifying Restart Router Operation

Execute show graceful-restart unicast command. Check the status of the protocol that is operating as the restart router.

Figure 28-10: Result of executing show graceful-restart unicast command
>show graceful-restart unicast Date 20XX/12/14 12:00:00 UTC Status: Completed Graceful Restart Time Limit: 180s Start Time: 20XX/12/08 17:01:23 End Time : 20XX/12/08 17:01:23 OSPF : Restart State <Finished> Total of Domain: 2 (Succeeded: 2) BGP : Restart State <Finished> Total of Peer : 25 (Succeeded: 25) OSPFv3: Restart State <Finished> Total of Domain: 2 (Succeeded: 2) BGP4+ : Restart State <Finished> Total of Peer : 20 (Succeeded: 20)

Figure 28-10: Result of executing show graceful-restart unicast command

>show graceful-restart unicast
Date 20XX/12/14 12:00:00 UTC
Status: Completed
Graceful Restart Time Limit: 180s
Start Time: 20XX/12/08 17:01:23
End Time  : 20XX/12/08 17:01:23
OSPF  : Restart State <Finished>
        Total of Domain: 2 (Succeeded: 2)
BGP   : Restart State <Finished>
        Total of Peer  : 25 (Succeeded: 25)
OSPFv3: Restart State <Finished>
        Total of Domain: 2 (Succeeded: 2)
BGP4+ : Restart State <Finished>
        Total of Peer  : 20 (Succeeded: 20)