EIGRP Redistribution and Route Control
To filter routing updates in EIGRP, use a distribute list. A distribute list calls a standard or extended access list and filters routing updates accordingly. When redistributing one protocol into another, use the redistribute command along with a default metric. A route map should be used in place of a distribute list when controlling specific routes during the redistribution process. Redistribution happens automatically between IGRP and EIGRP when they are in the same autonomous systems....
Show ip eigrp neighbors Command
This can be one of the most useful commands when verifying the operational status of EIGRP. The show ip eigrp neighbors command shows the status of all EIGRP neighbors. The neighbor should be up for as long as EIGRP has been running on the link. EIGRP forms a neighbor relationship with all routers on the same subnet and in the same AS. EIGRP does not form a neighbor relationship with mismatched k values however, a neighbor can be formed with mismatched hellos and dead timers. A neighbor with a...
EIGRP Metrics
EIGRP uses metrics in the same way as IGRP. Each route in the route table has an associated metric. EIGRP uses a composite metric much like IGRP, except that it is modified by a multiplier of 256. Recall from Chapter 10, Distance Vector Protocols Interior Gateway Routing Protocol (EIGRP), that bandwidth, delay, load, reliability, and MTU are the submetrics. Like IGRP, EIGRP chooses a route based primarily on bandwidth and delay, or the composite metric with the lowest numerical value. When...