HP HPE FlexNetwork 7500 series Configuration Manual page 470

Router ID
1.1.1.1
2.2.2.2
3.3.3.3
3. Configure router priorities for interfaces:
# Set the router priority of VLAN-interface 100 to 100 on Switch A.
[SwitchA] interface Vlan-interface 100
[SwitchA-Vlan-interface100] ospfv3 dr-priority 100
[SwitchA-Vlan-interface100] quit
# Set the router priority of VLAN-interface 200 to 0 on Switch B.
[SwitchB] interface vlan-interface 200
[SwitchB-Vlan-interface200] ospfv3 dr-priority 0
[SwitchB-Vlan-interface200] quit
# Set the router priority of VLAN-interface 100 to 2 on Switch C.
[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
Area: 0.0.0.0
-------------------------------------------------------------------------
Router ID
2.2.2.2
3.3.3.3
4.4.4.4
# Display neighbor information on Switch D. Switch D is still the DR.
[SwitchD] display ospfv3 peer
Area: 0.0.0.0
-------------------------------------------------------------------------
Router ID
1.1.1.1
2.2.2.2
3.3.3.3
4. Restart DR and BDR election:
# Use the shutdown and undo shutdown commands on interfaces to restart DR and BDR
election. (Details not shown.)
# Display neighbor information on Switch A. The output shows that Switch C becomes the BDR.
[SwitchA] display ospfv3 peer
Pri State
1 Full/DROther
1 Full/DROther
1 Full/BDR
OSPFv3 Process 1 with Router ID 1.1.1.1
Pri State
0 2-Way/DROther
2 Full/BDR
1 Full/DR
OSPFv3 Process 1 with Router ID 4.4.4.4
Pri State
100 Full/DROther
0 Full/DROther
2 Full/BDR
OSPFv3 Process 1 with Router ID 1.1.1.1
458
Dead-Time InstID Interface
00:00:30 0 Vlan100
00:00:37 0 Vlan200
00:00:31 0 Vlan100
Dead-Time InstID Interface
00:00:36 0 Vlan200
00:00:35 0 Vlan200
00:00:33 0 Vlan200
Dead-Time InstID Interface
00:00:30 0 Vlan100
00:00:37 0 Vlan200
00:00:31 0 Vlan100