From: Mark Lasarko (mlasarko@co.ba.md.us)
Date: Mon Apr 18 2005 - 19:09:57 GMT-3
Just thinking - as much real world as the lab I suppose...
Are there *any* situations where 'ip cef' would not be desirable?
(aside from the obvious "do not issue the command ip cef")
I can only think of two myself... and I am not sure if both apply??
The first is proxy-arp, 'cause this can cause a routing loop
The second is if you wanted to load-balance by the routing protocol
then you would not want cef
The logic being that cef would assume the load balancing functions over
the routing protocol once populated.
and while I have the burning smell inside my brain...
I recall reading that arp populates cef.
I also recall reading that when arp times out cef entries will do the
same
are these two perceptions correct?
and with cef enabled (and populated) how does this impact arp activity
- if at all?
Thoughts?
~M
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