3Com Switch 4800G 24-Port Configuration Manual page 458

458 C 34: IP 6 OSPF
HAPTER V
3 C
V ONFIGURATION
[SwitchD] display ospfv3 peer
OSPFv3 Area ID 0.0.0.0 (Process 1)
----------------------------------------------------------------------
Neighbor ID Pri
1.1.1.1 1
2.2.2.2 1
3.3.3.3 1
3 Configure DR priorities for interfaces.
# Configure the DR priority of VLAN-interface 100 as 100 on Switch A.
[SwitchA] interface Vlan-interface 100
[SwitchA-Vlan-interface100] ospfv3 dr-priority 100
[SwitchA-Vlan-interface100] quit
# Configure the DR priority of VLAN-interface 200 as 0 on Switch B.
[SwitchB] interface vlan-interface 200
[SwitchB-Vlan-interface200] ospfv3 dr-priority 0
[SwitchB-Vlan-interface200] quit
#Configure the DR priority of Switch C as 2.
[SwitchC] interface Vlan-interface 100
[SwitchC-Vlan-interface100] ospfv3 dr-priority 2
[SwitchC-Vlan-interface100] quit
# Display neighbor information on Switch A. You can find DR priorities have been
updated, but DR and BDR are not changed.
[SwitchA] display ospfv3 peer
OSPFv3 Area ID 0.0.0.0 (Process 1)
----------------------------------------------------------------------
Neighbor ID Pri
2.2.2.2 0
3.3.3.3 2
4.4.4.4 1
#Display neighbor information on Switch D. You can find Switch D is still the DR.
[SwitchD] display ospfv3 peer
OSPFv3 Area ID 0.0.0.0 (Process 1)
----------------------------------------------------------------------
Neighbor ID Pri
1.1.1.1 100
2.2.2.2 0
3.3.3.3 2
4 Restart DR/BDR election
# Use the shutdown and undo shutdown commands on interfaces to restart
DR/BDR election (omitted).
# Display neighbor information on Switch A. You can find Switch C becomes the
BDR.
[SwitchA] display ospfv3 peer
OSPFv3 Area ID 0.0.0.0 (Process 1)
----------------------------------------------------------------------
Neighbor ID Pri
2.2.2.2 0
State Dead Time
Full/DROther 00:00:30
Full/DROther 00:00:37
Full/Backup 00:00:31
State Dead Time
2-Way/DROther 00:00:38
Full/Backup 00:00:32
Full/DR 00:00:36
State Dead Time
Full/DROther 00:00:33
Full/DROther 00:00:36
Full/Backup 00:00:40
State Dead Time
Full/DROther 00:00:31
Interface Instance ID
Vlan100 0
Vlan200 0
Vlan100 0
Interface Instance ID
Vlan200 0
Vlan100 0
Vlan200 0
Interface Instance ID
Vlan100 0
Vlan200 0
Vlan100 0
Interface Instance ID
Vlan200 0