IGRP AND EIGRP
As just stated, the IGRP and the EIGRP are routing protocols developed by Cisco and EIGRP has replaced IGRP in many systems. Table 8-1 summarizes the major attributes of these protocols, and will be a convenient reference as we proceed through this discussion.
Table 8-1. Inter-Gateway Routing Protocol (IGRP) and Enhanced IGRP (EIGRP)
Proprietary protocols from Cisco Distance vector protocols with metrics based on: Fixed delay between nodes (D) Bandwidth (B) Traffic load (L) Error rate on the path: reliability (R) Count of the hops on the path to the destination (H) The path's MTU Support load balancing across multiple paths to a destination Use triggered updates, split horizon, and holddown EIGRP also has: CIDR prefixes Better methods for ...
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