Specifications

IP Switching Commands
ip cef table resolution-timer
ISW-49
Cisco IOS IP Switching Command Reference
May 2008
ip cef table resolution-timer
To change the Cisco Express Forwarding (CEF) background resolution timer, use the ip cef table
resolution-timer command in global configuration mode.
ip cef table resolution-timer seconds
no ip cef table resolution-timer seconds
Syntax Description
Defaults The default configuration value is 0 seconds for automatic exponential backoff.
Command Modes Global configuration
Command History
Usage Guidelines The CEF background resolution timer can use either a fixed time interval or an exponential backoff timer
that reacts to the amount of resolution work required. The exponential backoff timer starts at 1
second,
increasing to 16 seconds when a network flap is in progress. When the network recovers, the timer
returns to 1 second.
The default is used for the exponential backoff timer. During normal operation, the default configuration
value set to 0 results in re-resolution occurring much sooner than when the timer is set at a higher fixed
interval.
Examples The following example show how to set the CEF background resolution timer to 3 seconds:
Router(config)# ip cef table resolution-timer 3
seconds Timer value in seconds. Range is from 0 to 30 seconds; 0 is for the automatic
exponential backoff scheme.
Release Modification
12.2(2)T This command was introduced.