Configuring route filtering, Network requirements – H3C Technologies H3C S7500E Series Switches User Manual
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[SwitchC-acl-basic-2000] quit
[SwitchC] router id 3.3.3.3
[SwitchC] ospf 100
[SwitchC-ospf-100] graceful-restart help 2000
[SwitchC-ospf-100] area 0
[SwitchC-ospf-100-area-0.0.0.0] network 192.1.1.0 0.0.0.255
5) Verify the configuration
# After the configurations on Switch A, Switch B and Switch C are completed and the switches are
running steadily, enable OSPF Graceful Restart event debugging and then perform OSPF Graceful
Restart on Switch A.
Warning : Reset OSPF process? [Y/N]:y
%Dec 12 09:36:12:500 2006 SwitchA RM/3/RMLOG:OSPF-NBRCHANGE: Process 1, Neighbour
192.1.1.1(Vlan100) from Full to Down
OSPF 1: Intf 192.1.1.1 Rcv InterfaceDown State BackupDR -> Down.
OSPF 1 nonstandard GR Started for OSPF Router
OSPF 1 notify RM that OSPF process will enter GR.
OSPF 1 created GR wait timer, timeout interval is 40(s).
OSPF 1 created GR Interval timer,timeout interval is 120(s).
OSPF 1: Intf 192.1.1.1 Rcv InterfaceUp State Down -> Waiting.
OSPF 1: Intf 192.1.1.1 Rcv BackupSeen State Waiting -> BackupDR.
OSPF 1 created OOB Progress timer for neighbor 192.1.1.2.
OSPF 1 restarted OOB Progress timer for neighbor 192.1.1.2.
OSPF 1 restarted OOB Progress timer for neighbor 192.1.1.2.
%Oct 22 09:36:12:566 2008 SwitchA RM/3/RMLOG:OSPF-NBRCHANGE: Process 1, Neighbour
192.1.1.2(Vlan100) from Loading to Full
OSPF 1 restarted OOB Progress timer for neighbor 192.1.1.2.
OSPF 1 deleted OOB Progress timer for neighbor 192.1.1.2.
OSPF 1 Gr Wait Timeout timer fired.
OSPF 1 deleted GR wait timer.
OSPF 1 deleted GR Interval timer.
OSPF 1 GR Completed for OSPF Router
OSPF 1 notified RM that OSPF process left GR.
RM notified that all protocol left GR.
OSPF 1 started flushing STALE LSA after all protocol left GR.
OSPF 1: Flush Stale Area LSAs
OSPF 1: Start Flush Stale ASE + NSSA LSAs
OSPF 1: End Flush Stale ASE + NSSA LSAs
Switch A completes GR with the help of Switch B.
Configuring Route Filtering
Network requirements
As shown in the following figure:
z
All the switches in the network run OSPF. The AS is divided into three areas.
z
Switch A and Switch B work as ABRs.