From: Douglas M Todd, Jr (dtodd@PARTNERS.ORG)
Date: Thu Jun 21 2007 - 12:49:52 ART
All depends if you want to enable cef for ALL interfaces or just a
specific interface. Generally, global is a good way to go, unless you
need to troubleshoot a problem which requires debugging packets which
are cef switched. At this time you would disable cef under the interface
or just enable ip cache.
Either way, testing this in the lab is never a problem, in production
however, the device should be deployed with the necessary caching
enabled. I have had to disable ip cef when we have low end routers at
the remote site due to their inability to handle the traffic load. This
was before more advance QOS was available. Now QOS can fix some of these
offsets and CEF can be enabled and left enabled.
DMT
Xiangling wrote:
> Hi, All,
>
> May someone tell me if the question is about a certain interface (which is
> the most common case). Do I need to put "ip cef" globally or just "ip
> route-cache cef" under interface?
>
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