From: Stefan Grey (examplebrain@hotmail.com)
Date: Mon Dec 25 2006 - 13:09:45 ART
Guys could you please help me with understanding the following.
1) I want to understand how different switching methods function: especially
CEF, fastswitching, process Swithcing.
I have read several articles about CEF... but still don't fully understand
how does it function. And what I don't understand most and want to
understand most... Why CEF is more efficient than fast switching and other
switching methods???
1) Aboud CEF. Is my understanding correct as below???
As I understand CEF works as follows: It has FIB and adjacency table. Once
router or Layer 3 receives an IP packet it looks into FIB to determine the
next hop router. Next it looks in the adjacency table to match the next-hop
IP address with its MAC address and the output interface.. Than it does the
switching... Correct??? Please comment...
2) I have read about Fast switching that it makes switching first based on
process switching and than it build some route cache... and than switches
based on this cache.... But I don't understand it completely... Could you
plese explain how it works and how does this route cache look like???
Well I would appreciate any explanations... and also links where to read
more detail about this.
Thank you very much.
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