Configuring Ospf Virtual Links - HP MSR Series Configuration Manual

Router ID: 3.3.3.3
State: Full
DR: 192.168.1.1
Dead timer due in 39
Neighbor is up for 00:01:41
Authentication Sequence: [ 0 ]
The output shows that Router A becomes the DR and Router C becomes the BDR.
The full neighbor state means an adjacency has been established. The 2-way neighbor state
means the two routers are not the DR or BDR, and they do not exchange LSAs.
# Display OSPF interface information
[RouterA] display ospf interface
Area: 0.0.0.0
IP Address
192.168.1.1
[RouterB] display ospf interface
Area: 0.0.0.0
IP Address
192.168.1.2
The interface state DROther means the interface is not the DR or BDR.

Configuring OSPF virtual links

Network requirements
Configure a virtual link between Router B and Router C to connect Area 2 to the backbone area. After
configuration, Router B can learn routes to Area 2.
Figure 24 Network diagram
Configuration procedure
1. Configure IP addresses for interfaces. (Details not shown.)
Mode: Nbr is Slave
BDR: 192.168.1.3
sec
OSPF Process 1 with Router ID 1.1.1.1
Interfaces
Type State
Broadcast DR
OSPF Process 1 with Router ID 2.2.2.2
Interfaces
Type State
Broadcast DROther
Address: 192.168.1.3
Priority: 2
MTU: 0
Cost Pri DR
1 100 192.168.1.1
Cost Pri
1 0
100
GR State: Normal
BDR
192.168.1.3
DR BDR
192.168.1.1 192.168.1.3