Here is the scenario and my question
VoIP deployment 100 phones, PC's, two ISR's and a switch. I would like to setup a DHCP server for the phones on the ISR and have a DHCP helper for the PC's. I wanted to setup an environment where there is a level of redunancy for the DHCP pools on the ISR's.
How does the DHCP server portion work on the router in the event of a failure? Is it wise to setup identical or split up DHCP pools on both ISR's?
Probably as a best practice it's better to split the poon on two parts (as from this presentation
Anyway as stated here:
"At the address assignment, the DHCP checks for conflicts with ping and gratuitous ARP."
So you can have two DHCP servers with the same pool.