EIGRP query: test results

From: Győri Gábor (Gyori.Gabor@kfkizrt.hu)
Date: Mon Jun 16 2008 - 13:01:28 ART


Hello Group!

At the end I have made my experiments on EIGRP querying, I share the results
with you.

The results:
 - Nor inbound/outbound distribute-list nor summary-address creates border for
query on on interface.
 - A router that used to have the route in it's topology table allways sends
query to all eigrp neighbors unconditionally.
 - A router which never had that route in its's topology table does not create
any query altough it gets queries on several interfaces.

This way distribute-list, address summarization implicitely makes query
border: if a router does not get a route form uplink neighbors, it does not
create query for them towards the downlink (and uplink) neigbors.

Quite suprising for me, perhaps it is new for some of you.

Gabor



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