2. Verify That OSPF Neighbors Are Established

Purpose

After configuring OSPF, you must verify that neighboring routers have formed adjacencies with each other.

Action

To verify OSPF neighbors, enter the following JUNOS CLI operational mode command:

user@host> show ospf neighbor

Sample Output

user@R1> show ospf neighbor 

  Address         Interface             State      ID              Pri  Dead

10.1.12.2        so-0/0/0.0             Full      10.0.0.2         128   37  

10.1.15.2        so-0/0/1.0             Full      10.0.0.5         128   35  

10.1.13.2        so-0/0/2.0             Full      10.0.0.3         128   38 

user@R3> show ospf neighbor 

  Address         Interface             State      ID              Pri  Dead

10.1.34.2        so-0/0/0.0             Full      10.0.0.4         128   38  

10.1.23.1        so-0/0/1.0             Full      10.0.0.2         128   35  

10.1.13.1        so-0/0/2.0             Full      10.0.0.1         128   37  

10.1.36.2        so-0/0/3.0             Full      10.0.0.6         128   36 

user@R6> show ospf neighbor 

  Address         Interface             State      ID              Pri  Dead

10.1.56.1        so-0/0/0.0             Full      10.0.0.5         128   39  

10.1.46.1        so-0/0/1.0             Full      10.0.0.4         128   37  

10.1.26.1        so-0/0/2.0             Full      10.0.0.2         128   36  

10.1.36.1        so-0/0/3.0             Full      10.0.0.3         128   37  

What It Means

The sample output from the ingress, transit, and egress routers shows that all routers in the network shown in Figure 1 have formed OSPF neighbor adjacencies.