[cisco-voip] setting the ARP cache timeout for phones using DHCP option

[David Sullivan]

I have seen this issue and it was related to the mac address table timeout being shorter than the arp timeout, on switches I normally match the two with:

mac address-table aging-time 14400
 
This timeout being far easier to change than changing the arp settings on every device, the re-arp will then refresh the mac address table.

David.

* Barnet and Southgate College is a highly successful Further Education college with around 21,000 students of all ages from 14 years upwards. 

* The College occupies four main campuses: Grahame Park at Colindale, Southgate, Edmonton Green and the brand new town centre campus at Wood St, High Barnet. 
 
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