How to check the topology of an EIGRP table?

How to check the topology of an EIGRP table?

EIGRP Topology Table keeps all the routes to all the destinations. It keeps all the Successor and Feasible Successor routes. We can say also, “i t keeps the best routes and the alternatives ”. You can check EIGRP Topology Table with “ show ip eigrp topology ” command.

Why is the feasible distance ( FD ) inaccessible in EIGRP?

The EIGRP topology table shows that the feasible distance (FD) is inaccessible (4294967295); the route is an external route that has been redistributed from OSPF. This means that Router B is receiving the 150.150.0.0/16 routes from Router C but is setting the FD as inaccessible because Router B is not using the EIGRP route in the routing table.

Which is better rip or EIGRP for router B?

Because RIP has a lower administrative distance (120) than external EIGRP routes (170), Router B installs RIP routes for 150.150.0.0/16 only from Router A. Example 7-37 shows the EIGRP topology table for Router B.

Why is my EIGRP table stuck in active?

The cause of Stuck In Active can be any high CPU and memory usage, packet drops, unidirectional links etc. EIGRP Routing Table is the table which keeps the Best Routes to any destinations. This Best Routes are Successors. You can see the EIGRP Routing Table with “ show ip route eigrp ” command.

What are the three tables used in EIGRP?

Figure 3-3 illustrates the three tables that EIGRP uses in its operation: The routing table contains the best route (the successor route) to each destination. Figure 3-3 EIGRP Maintains a Neighbor Table, a Topology Table, and a Routing Table The neighbor table includes the address of each neighbor and the interface through which it can be reached.

What is the route selection process in EIGRP?

Route Selection. The EIGRP route selection process is perhaps what most distinguishes it from other routing protocols. EIGRP selects primary (successor) and backup (feasible successor) routes and injects those into the topology table. The primary (successor) routes are then moved to the routing table.