CEF is currently the recommended switching path and should be used always unless some feature is required that is not supported by CEF. The major advantage of enabling CEF is that it is less CPU intensive when compared to fast switching which directly improves the performance of your router. Once you enable it globally using the 'ip cef' command it will automatically be activated on all CEF supporting interfaces.
CEF is cisco express forwarding...its provide the very high speed switching of data...it maintain the FIB and aducancy table in order to achive the fast data transfer...FIB is same as our routing table and adjucany table havig hardware address binding...in CEF first packe to the destination is forwarded by the layer 3 software base lookup and then all the subsequence packet will send by the rewrite the packet using ASIC which make it faster...its also use full when you are having more cpu usage.. .
We are pleased to announce availability of Beta software for 16.6.3.
16.6.3 will be the second rebuild on the 16.6 release train targeted
towards Catalyst 9500/9400/9300/3850/3650 switching platforms. We are
looking for early feedback from customers befor...
Introduction Featured Speakers Luis Espejel is the Telecommunications
Manager of IENova, an Oil & Gas company. Currently he works with Cisco
IOS® and Cisco IOS XE platforms, and NX to some extent. He has also
worked as a Senior Engineer with the Routing P...
In this session you can learn more about Layer 3 multicast and the best
practices to identify possible threats and take security measures. It
provides an overview of basic multicast, the best security practices for
use of this technology, and recommendati...