Configuring Ospf Graceful Restart - HP 6125G Configuration Manual

Area 0 has no direct connection to Area 2, so the routing table of Switch B has no route to Area
2.
Configure a virtual link:
3.
# Configure Switch B.
[SwitchB] ospf
[SwitchB-ospf-1] area 1
[SwitchB-ospf-1-area-0.0.0.1] vlink-peer 3.3.3.3
[SwitchB-ospf-1-area-0.0.0.1] quit
[SwitchB-ospf-1] quit
# Configure Switch C.
[SwitchC] ospf 1
[SwitchC-ospf-1] area 1
[SwitchC-ospf-1-area-0.0.0.1] vlink-peer 2.2.2.2
[SwitchC-ospf-1-area-0.0.0.1] quit
# Display the OSPF routing table of Switch B.
[SwitchB] display ospf routing
Routing for Network
Destination
10.2.1.0/24
10.3.1.0/24
10.1.1.0/24
Total Nets: 3
Intra Area: 2
Switch B has learned the route 10.3.1.0/24 to Area 2.

Configuring OSPF Graceful Restart

Network requirements
As shown in
and the same OSPF routing domain are GR capable.
Switch A acts as the non-IETF standard GR Restarter, whereas Switch B and Switch C are the GR Helpers
and re-synchronize their LSDB with Switch A through OOB communication of GR.
OSPF Process 1 with Router ID 2.2.2.2
Routing Tables
Cost
2
5
2
Inter Area: 1
Figure 40, Switch A, Switch B, and Switch C that belong to the same autonomous system
Type NextHop
Transit 10.2.1.1
Inter 10.2.1.2
Transit 10.1.1.2
ASE: 0 NSSA: 0
108
AdvRouter Area
3.3.3.3 0.0.0.1
3.3.3.3 0.0.0.0
2.2.2.2 0.0.0.0