3Com S7906E - Switch, Configuration Manual

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1-70
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.
z
Configure Switch C as an ASBR to redistribute external routes (static routes), and configure a filter
policy on Switch C to filter out redistributed route 3.1.3.0/24.
z
Configure a route policy on Switch A to filter route 10.5.1.0/24.
Figure 1-29 Network diagram for OSPF route filtering configuration
Configuration procedure
1) Configure IP addresses for interfaces (omitted)
2) Configure OSPF basic functions (Refer to Configuring OSPF Basic Functions ).
3) Configure OSPF to redistribute routes.
# On Switch C, configure a static route destined for network 3.1.1.0/24.
<SwitchC> system-view
[SwitchC] ip route-static 3.1.1.0 24 10.4.1.2
# On Switch C, configure a static route destined for network 3.1.2.0/24.
[SwitchC] ip route-static 3.1.2.0 24 10.4.1.2