Interior Gateway Routing Protocol (IGRP)

Interior Gateway Routing Protocol (IGRP)

IGRP is an interior gateway protocol

invented by cisco to replace the RIP.

It is a distance-vector routing protocol

used by routers to exchange routing data

within an autonomous system.

Important points
1. IGRP supports multiple metrics for each

route, including bandwidth, delay, load,

MTU, and reliability

2.The maximum hop count of IGRP-routed

packets is 255 (default 100).

1. IGRP is considered a classful routing


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Anonymous said...

Classful routing protocols can not support variable length subnets.

FeliX said...

Yes thats why we are using classless protocols for Variable Lenght Subnets (VLSM).