OSPF Neighbor Troubleshooting
OSPF Troubleshooting Exercise #1
OSPF Troubleshooting Exercise #2
Similar to EIGRP, a router’s show ip ospf neighbor command lists all the neighboring routers that have met all the requirements to become an OSPF neighbor as listed in Table 11-2. So, the first step in troubleshooting OSPF neighbors is to look at the list of neighbors.
Example 11-10 lists the output of a show ip ospf neighbor command on router R2, from Figure 11-4. All four routers sit on the same LAN subnet, in area 0, with correct configurations, so ...