CEF, or Cisco Express Sending, could be a layer 3 exchanging innovation. It’s an enhancement over quick exchanging and course processor switching. The FIB, or Sending Data Base, may be a coordinate copy of the routing table.
In the event that a alter happens on the directing table, it is additionally reflected within the FIB. CEF and Lie are a group. Together they are quick. CEF is known as a topology-based exchanging operation, thus the Lie. Since the data CEF employments is put away in cache, it is able to switch consequent activity streams much quicker.
References:- Cisco Express Forwarding (CEF)
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