On Wed, Nov 30, 2011 at 5:09 PM, John R Pierce <pierce at hogranch.com> wrote: > On 11/30/11 12:59 AM, Fajar Priyanto wrote: >> How fast the Switches can recognize the new mac? Any other pitfall? > > within seconds. or faster. and the client's ARP caches expire nearly > as fast. > > its not the switches you care about as much as the DHCP leases for your > clients. if you can copy the dhcp leases file over, that will save a > lot of grief. > Thanks John, I feel a bit relief hearing that. More over, the gateway is a pure one, no dhcp, no other services.