Cisco Express Forwarding (CEF) ?

[enzo288]

For those of you who are familiar with this technology, is there any benefit in implementing CEF on a network which uses static routing. From what I have read it seems like this technology is truly beneficial when used in an environment using dynamic routing. Thanks.

 

[Nazgulero]

Hello,

AFAIK, CEF is advantageous even when only static routes are used, since the FIB is used instead of the routing table, using a more advanced search algorithm and data structure, and - that is the most important advantage - bypassing the need for process switching.

HTH,

GP

 

[baddos]

Everyone should use CEF unless your router is low on memory, or your doing something really custom.

 

[enzo288]

We are going to be installing CEF on our core switch. We were going to install MLS but have decided to go with CEF instead.

 

[BuckWeet]

MLS and CEF are two different things...

you can't have CEF without MLS... CEF is a layer 3 process, MLS gives you the layer 3 features..

 

[enzo288]

That is not how I had it explained to me.

 

[schofs]

I agree CEF is a layer 3 process it alows switching speed at layer 3 instaed of 2