CCNP Routing and Switching ROUTE 300-101 Official Cert Guide

The EIGRP Update Process

So far, this chapter has focused on the detailed information that EIGRP exchanges with a neighbor about each prefix. This section takes a broader look at the process.

When EIGRP neighbors first become neighbors, they begin exchanging topology information using Update messages using these rules:

When a neighbor first comes up, the routers exchange full updates, meaning that the routers exchange all topology information.

After all prefixes have been exchanged with a neighbor, the updates cease with that neighbor if no changes ...