Figure 76: Sample OSPF Network Topology
Verify that the OSPF routing table has entries for the following:
For example, Figure 76 shows a sample network with an OSPF topology.
Figure 76: Sample OSPF Network Topology
In this topology, OSPF is being run on all interfaces. Each segment in the network is identified by an address with a /24 prefix, with interfaces on either end of the segment being identified by unique IP addresses.
From the CLI, enter the show ospf route command.
user@host> show ospf route
Prefix Path Route NH Metric NextHop Nexthop
Type Type Type Interface addr/label
10.10.10.1/24 Intra Network IP 1 ge-0/0/2.0 10.0.21.1
10.10.10.2/24 Intra Network IP 1 ge-0/0/2.0 10.0.21.1
10.10.10.4/24 Intra Network IP 1 ge-0/0/1.0 10.0.13.1
10.10.10.5/24 Intra Network IP 1 ge-0/0/2.0 10.0.21.1
10.10.10.6/24 Intra Network IP 1 ge-0/0/1.0 10.0.13.1
10.10.10.10/24 Intra Network IP 1 ge-0/0/2.0 10.0.21.1
10.10.10.11/24 Intra Network IP 1 ge-0/0/1.0 10.0.13.1
10.10.10.13/24 Intra Network IP 1 ge-0/0/1.0
10.10.10.16/24 Intra Network IP 1 ge-0/0/1.0 10.0.13.1
10.10.10.19/24 Intra Network IP 1 ge-0/0/1.0 10.0.13.1
10.10.10.20/24 Intra Network IP 1 ge-0/0/2.0 10.0.21.1
10.10.10.21/24 Intra Network IP 1 ge-0/0/2.0
192.168.5.1 Intra Router IP 1 ge-0/0/2.0 10.0.21.1
192.168.5.2 Intra Router IP 1 lo0
192.168.5.3 Intra Router IP 1 ge-0/0/1.0 10.0.13.1
192.168.5.4 Intra Router IP 1 ge-0/0/1.0 10.0.13.1
192.168.5.5 Intra Router IP 1 ge-0/0/1.0 10.0.13.1
192.168.5.6 Intra Router IP 1 ge-0/0/2.0 10.0.21.1
192.168.5.7 Intra Router IP 1 ge-0/0/2.0 10.0.21.1
192.168.5.8 Intra Router IP 1 ge-0/0/2.0 10.0.21.1
192.168.5.9 Intra Router IP 1 ge-0/0/1.0 10.0.13.1
The output lists each route, sorted by IP address. Routes are shown with a route type of Network, and loopback addresses are shown with a route type of Router.
For the example shown in Figure 76, verify that the OSPF routing table has 21 entries, one for each network segment and one for each router's loopback address.
For a complete description of show ospf route output, see the JUNOS Routing Protocols and Policies Command Reference.