Specifications

IP Switching Commands
ip cef
ISW-35
Cisco IOS IP Switching Command Reference
May 2008
If you enable CEF and then create an access list that uses the log keyword, the packets that match the
access list are not CEF switched. They are fast switched. Logging disables CEF.
Examples The following example shows how to enable standard CEF operation:
Router(config)# ip cef
The following example shows how to enable dCEF operation:
Router(config)# ip cef distributed
Related Commands Command Description
ip route-cache Controls the use of high-speed switching caches for IP
routing.
ip cef accounting Enables CEF network accounting.
ip cef load-sharing algorithm Selects a CEF load balancing algorithm.
ip cef table adjacency-prefix override Enables CEF adjacency prefixes to override static host
glean routes.
ip cef table consistency-check Enables CEF table consistency checker types and
parameters.
ip cef table event-log Controls CEF table event-log characteristics.
ip cef table resolution-timer Changes CEF background resolution timer.