Basic CEF question

Answered Question
Dec 23rd, 2008

Can someone explain how exactly CEF reduces the work on the CPU when the CEF Adjacency and FIB both reside in the Route Processor just like the Route table? This link doesn't exactly say how the CPU load is reduced.


I have this problem too.
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Correct Answer by Joseph W. Doherty about 7 years 10 months ago

CEF appears to accomplish packet forwarding in more efficient manner by reducing both the CPU work involved in forwarding a packet, and by reducing the CPU work keeping various caches current. You might want to read

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