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CEF Question

Unanswered Question
Sep 9th, 2003
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Hi,


When enabling CEF on a Cisco router, is it necessary to enable it on the individual interfaces as well as globally? From my understanding, FIB/adjacency table information is maintained globally.


Also, if both fast-switching & CEF are enabled, does CEF take precedence on routing decisions?


Thanks,

Rajesh


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rajesh444 Tue, 09/09/2003 - 09:08
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Robert,


Thanks for the document. You are right, CEF does automatically gets enabled on the interfaces. I have IPSec tunnels terminating on the routers and am concerned about potential impact of enabling CEF on serial interfaces on VPN traffic.


Also, does CEF eliminate the need for MLS on

Layer-3 switches?


Thanks,

Rajesh


Rajesh

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