Maximum Time difference between DHCP primary and DHCP failover Server

[glenn.satchell at uniq.com.au]

On 2021-01-19 05:41, Simon Hobson wrote:
> Kraishak Mahtha <kraishak.edu at gmail.com> wrote:
> 
>> What would be the maximum time difference that can be between a ISC  
>> DHCP primary and failover server
> 
> AIUI, not a huge amount.
> 
> But I have to wonder at the question - do you have a problem with
> timekeeping ? NTP will typically keep clocks accurate to millisecond
> accuracy which is a few orders of magnitude better than is needed for
> failover.
> 
> Simon

Even if you are on an isolated network with no external access you could 
set the two dhcp servers as NTP peers so they were synchronised to each 
other.

regards,
Glenn