3Com MSR 50 Series Configuration Manual page 967

Router A has learned the destination 172.16.1.1/16 in Area 2.
Configuring OSPF Network requirements
Graceful Restart
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Network diagram
Figure 294 Network diagram for OSPF-based GR configuration (on routers)
Configuration Procedure
1 Configure Router A
<RouterA> system-view
[RouterA] interface ethernet 1/0
[RouterA-Ethernet1/0] ip address 192.1.1.1 255.255.255.0
[RouterA-Ethernet1/0] quit
[RouterA] router id 1.1.1.1
[RouterA] ospf 100
[RouterA-ospf-100] enable link-local-signaling
[RouterA-ospf-100] enable out-of-band-resynchronization
[RouterA-ospf-100] graceful-restart
[RouterA-ospf-100] area 0
[RouterA-ospf-100-area-0.0.0.0] network 192.1.1.0 0.0.0.255
[RouterA-ospf-100-area-0.0.0.0] return
2 Configure Router B
<RouterB> system-view
[RouterB] acl number 2000
[RouterB-acl-basic-2000] rule 10 permit source 192.1.1.1 0.0.0.0
[RouterB-acl-basic-2000] quit
Routing for Network
Destination Cost
172.16.1.1/16 1563
10.0.0.0/8 1
192.168.1.0/24 1562
Total Nets: 3
Intra Area: 2 Inter Area: 1
Router A, Router B and Router C that belong to the same autonomous system
and the same OSPF routing domain are GR capable.
Router A acts as the non IETF standard GR Restarter, and Router B and Router
C are the GR Helpers and remain OOB synchronized with Router A through the
GR mechanism.
Router ID: 1.1.1.1
GR restarter
Eth1/0
192.1.1.2 /24
Router B
GR helper
Router ID: 2.2.2.2
type NextHop
Inter 192.168.1.2
Stub 10.1.1.1
Stub 192.168.1.1
ASE: 0 NSSA: 0
Router A
Eth1/0
192 .1 .1.1/24
Eth1/0
192 .1.1.3/24
Router C
GR helper
Router ID: 3.3.3.3
OSPF Configuration Examples
AdvRouter
2.2.2.2
1.1.1.1
1.1.1.1
967
Area
0.0.0.0
0.0.0.0
0.0.0.1