There is a lot of difference between CEF and fast switching i.e ip route-caching enabled on an interface.
With the Fast switch enabled on the interface it only caches the source and destination IP's and does a destination based packet forwarding while CEF caches the source and destination IP along with the next hop IP addess and also does the destination based load-balancing.
With CEF you have both FIB table and Adjancncy table created which results in faster look up and processing of the packets.
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...