Ospf Graceful Restart Configuration Example - H3C LS-3100-52P-OVS-H3 Operation Manual

[SwitchB] display ospf routing
OSPF Process 1 with Router ID 2.2.2.2
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.

OSPF Graceful Restart Configuration Example

Network requirements
As shown in the following figure:
Switch A, Switch B and Switch C that belong to the same autonomous system 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.
Figure 1-28 Network diagram for OSPF GR configuration
Vlan-int100
192.1.1.2/24
Switch B
GR helper
Router ID: 2.2.2.2
Configuration procedure
1) Configure Switch A
<SwitchA> system-view
[SwitchA] interface vlan-interface 100
[SwitchA-Vlan-interface100] ip address 192.1.1.1 255.255.255.0
[SwitchA-Vlan-interface100] quit
[SwitchA] router id 1.1.1.1
[SwitchA] ospf 100
[SwitchA-ospf-100] enable link-local-signaling
[SwitchA-ospf-100] enable out-of-band-resynchronization
[SwitchA-ospf-100] graceful-restart
[SwitchA-ospf-100] area 0
[SwitchA-ospf-100-area-0.0.0.0] network 192.1.1.0 0.0.0.255
Routing Tables
Cost Type
2 Transit 10.2.1.1
5 Inter
2 Transit 10.1.1.2
Inter Area: 1 ASE: 0
Router ID: 1.1.1.1
GR restarter
Switch A
Vlan-int100
192.1.1.1/24
Vlan-int100
192.1.1.3/24
Switch C
GR helper
Router ID: 3.3.3.3
NextHop AdvRouter
3.3.3.3
10.2.1.2 3.3.3.3
2.2.2.2
NSSA: 0
1-65
Area
0.0.0.1
0.0.0.0
0.0.0.0