3Com S7906E Configuration Manual page 887

Switch A acts as the GR Restarter. Switch B and Switch C are the GR Helpers and synchronize
their LSDBs with Switch A through out-of-band (OOB) communication of GR.
Figure 1-5 Network diagram for OSPFv3 GR configuration
Configuration procedure
1) Configure IPv6 addresses for interfaces (omitted).
2) Configure OSPFv3 basic functions
# On Switch A, enable OSPFv3 process 1, enable GR and set the router ID to 1.1.1.1.
<SwitchA> system-view
[SwitchA] ipv6
[SwitchA] ospfv3 1
[SwitchA-ospfv3-1] router-id 1.1.1.1
[SwitchA-ospfv3-1] graceful-restart enable
[SwitchA-ospfv3-1] quit
[SwitchA] interface vlan-interface 100
[SwitchA-Vlan-interface100] ospfv3 1 area 1
[SwitchA-Vlan-interface100] quit
# Enable OSPFv3 on Switch B and set the router ID to 2.2.2.2. (By default, GR helpler is enabled on
Switch B).
<SwitchB> system-view
[SwitchB] ipv6
[SwitchB] ospfv3 1
[SwitchB-ospfv3-1] router-id 2.2.2.2
[SwitchB-ospfv3-1] quit
[SwitchB] interface vlan-interface 100
[SwitchB-Vlan-interface100] ospfv3 1 area 1
[SwitchB-Vlan-interface100] quit
# Enable OSPFv3 on Switch C and set the router ID to 3.3.3.3. (By default, GR helpler is enabled on
Switch C).
<SwitchC> system-view
[SwitchC] ipv6
[SwitchC] ospfv3 1
[SwitchC-ospfv3-1] router-id 3.3.3.3
[SwitchC-ospfv3-1] quit
[SwitchC] interface vlan-interface 100
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