319
[SwitchD-Vlan-interface200] ospfv3 1 area 0
[SwitchD-Vlan-interface200] quit
# Display neighbor information on Switch A. The switches have the same default DR priority 1, so
Switch D (the switch with the highest Router ID) is elected as the DR, and Switch C is the BDR.
[SwitchA] display ospfv3 peer
OSPFv3 Process 1 with Router ID 1.1.1.1
Area: 0.0.0.0
-------------------------------------------------------------------------
Router ID Pri State Dead-Time Interface Inst ID
2.2.2.2 1 2-Way/DROther 00:00:36 Vlan200 0
3.3.3.3 1 Full/Backup 00:00:35 Vlan100 0
4.4.4.4 1 Full/DR 00:00:33 Vlan200 0
# Display neighbor information on Switch D. The neighbor states are all full.
[SwitchD] display ospfv3 peer
OSPFv3 Process 1 with Router ID 4.4.4.4
Area: 0.0.0.0
-------------------------------------------------------------------------
Router ID Pri State Dead-Time Interface Inst ID
1.1.1.1 1 Full/DROther 00:00:30 Vlan100 0
2.2.2.2 1 Full/DROther 00:00:37 Vlan200 0
3.3.3.3 1 Full/Backup 00:00:31 Vlan100 0
3. Configure router priorities for interfaces:
# Configure the router 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 router 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 router priority of VLAN-interface 100 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. Router priorities have been updated, but the DR and
BDR are not changed.
[SwitchA] display ospfv3 peer
OSPFv3 Process 1 with Router ID 1.1.1.1
Area: 0.0.0.0
-------------------------------------------------------------------------
Router ID Pri State Dead-Time Interface Inst ID
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