EIGRP neighbor statements

From: alsontra@hotmail.com
Date: Sat Jan 08 2005 - 15:10:40 GMT-3


All,

These are just a few general question related to the use of the EIGRP
neighbor statement. There is very limited documentation on the use and
configuration of the statement, so I'm hoping to tap the group's collective
wisdom.

1. When using neighbor statements over ATM SVC, PVC is it common for
adjacency to take a few minutes to establish? - In my experience it usually
takes 1.5 minutes of greater for an adjacency to establish - Is this the
normal behavior?

2. Under the usage guideline CISCO states the following:

"With most routing protocols, the passive-interface command restricts
outgoing advertisements only. However, when used with the Enhanced Interior
Gateway Routing Protocol (EIGRP), the use of the passive-interface command
suppresses the exchange of hello messages between two routers, which results
in the loss of their neighbor relationship. This behavior stops not only
routing updates from being advertised, but it also suppresses incoming
routing updates."

Which essentially means, "Do not use the passive interface command with
Eigrp neighbor statements". I'm not sure how that works considering the
EIGRP hellos are Unicast. Anyone have the story on this one?

Al

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