Migrating from RIPv1 to IGRP via "ships in the night" routing

“Ships in the night” routing refers to two routing protocols which do not interact with each other.  We can migrate from one routing protocol to a more believable one by simply turning on the new protocol then turning off the old protocol.  But be careful to turn the new protocol on in the entire routing domain before turning off the old protocol.

Cisco hands on training
Author: Darrell Root

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