HP HPE FlexNetwork 7500 series Configuration Manual page 132

Neighbors
Area 0.0.0.0 interface 192.168.1.4(Vlan-interface1)'s neighbors
Router ID: 1.1.1.1
State: Full Mode: Nbr is slave
DR: 192.168.1.1
Options is 0x02 (-|-|-|-|-|-|E|-)
Dead timer due in 39
Neighbor is up for 00:01:40
Authentication Sequence: [ 0 ]
Neighbor state change count: 6
BFD status: Disabled
Router ID: 2.2.2.2
State: 2-Way Mode: None
DR: 192.168.1.1
Options is 0x02 (-|-|-|-|-|-|E|-)
Dead timer due in 35
Neighbor is up for 00:01:44
Authentication Sequence: [ 0 ]
Neighbor state change count: 6
BFD status: Disabled
Router ID: 3.3.3.3
State: Full Mode: Nbr is slave
DR: 192.168.1.1
Options is 0x02 (-|-|-|-|-|-|E|-)
Dead timer due in 39
Neighbor is up for 00:01:41
Authentication Sequence: [ 0 ]
Neighbor state change count: 6
BFD status: Disabled
The output shows that Switch A becomes the DR and Switch C becomes the BDR.
If the neighbor state is full, Switch D has established an adjacency with the neighbor. If the
neighbor state is 2-way, the two switches are not the DR or the BDR, and they do not exchange
LSAs.
# Display OSPF interface information.
[SwitchA] display ospf interface
OSPF Process 1 with Router ID 1.1.1.1
Interfaces
Area: 0.0.0.0
IP Address Type
192.168.1.1 Broadcast DR
[SwitchB] display ospf interface
Address: 192.168.1.1
Priority: 100
BDR: 192.168.1.3 MTU: 0
sec
Address: 192.168.1.2
Priority: 0
BDR: 192.168.1.3 MTU: 0
sec
Address: 192.168.1.3
Priority: 2
BDR: 192.168.1.3 MTU: 0
sec
State Cost
1
120
GR State: Normal
GR State: Normal
GR State: Normal
Pri DR
100 192.168.1.1
BDR
192.168.1.3