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
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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).



disadvantage
__________________
1. IGRP is considered a classful routing

protocol.

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2 comments:

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).