Users Guide

Layer 3 Routing Commands 1257
arp cachesize
Use the arp cachesize command in Global Configuration mode to configure
the maximum number of entries in the ARP cache. To return the maximum
number of ARP cache entries to the default value, use the no form of this
command.
Syntax
arp cachesize integer
no arp cachesize
•
integer — Maximum number of ARP entries in the cache. Use the show
sdm prefer command to display the supported ARP cache size.
Default Configuration
The switch defaults to using the maximum allowed cache size.
Command Mode
Global Configuration mode
User Guidelines
The ARP cache size is dependent on the switching hardware used. The
allowed range of values may be different from the example given below for a
given switch model.
On VRF enabled switches, the ARP cache is shared among all VRF instances.
Configuration of the cache size is shared among all VRF instances.
Example
The following example defines an arp cachesize of 1000.
console(config)#arp cachesize 1000
arp dynamicrenew
Use the arp dynamicrenew command in Global Configuration mode to
enable the ARP component to automatically renew dynamic ARP entries
when they age out. To disable the automatic renewal of dynamic ARP entries
when they age out, use the no form of the command.