I regularly used to lower the ARP timeout to 5 minutes (to match the mac-address-table aging limit) on devices running on ATM LAN-E segments and saw no ill effects.
-saxon On 10 August 2012 08:23, Jay Nakamura <[email protected]> wrote: > Cisco default ARP timeout is 4 hours. Do anyone change that to > something shorter in a provider environment for customer with Ethernet > connectivity? What is a good value to set it to? > > Are there any impacts for lowering the timeout? Other than higher CPU > util for doing ARP a lot more on the router? > >
