DHCP server redundancy between 4503 switches

[pradeepkum]

We have two core switches 4503 C1 & C2. we have configured C1 switch as DHCP server. In case of Core 1 down we need to activate Core 2 to act as the DHCP server. Do let me know how to acheive DHCP failover between the Core switches.

[jcoke]

I wouldn't. I suspect you'd wind up with corruption in the file if both agents attempted to manipulate the file at the same time.

Re: The DHCP snooping command:

I'm a little confused. That's for the DHCP snooping DB, not the DHCP server binding table. The DHCP database agent command is:

ip dhcp database url [timeout seconds | write-delay seconds]

http://www.cisco.com/en/US/docs/ios/12_4/ip_addr/configuration/guide/hipdhcps.html