Forum Discussion

Morph_119678's avatar
Morph_119678
Icon for Nimbostratus rankNimbostratus
Jun 08, 2017

F5 DHCP load balancing with 2 x Server 2012 DHCP servers

Is anyone using F5 to load balance DHCP requests toward a Server 2012 DHCP failover configuration.   We have routers that forward DHCP requests toward F5 and F5 is then forwarding the requests tow...
application delivery
BIG-IP
tatmotiv's avatar
tatmotiv
Icon for Cirrostratus rankCirrostratus
Jun 12, 2017

Are you using a DHCP type virtual for this or a regular virtual? If you are using a DHCP type virtual, the load balancing method set for the according pool is ignored by the Big IP, and all DHCP requests are always forwarded to all members simultaneously. AFAIK, this behaviour cannot be avoided. In case you are using a regular virtual with a pool of servers being bound to it, you might try using priority group activation, configuring your standby server with a lower priority than your primary server, and setting minimum-active-members to one. Of course, this will work only with a proper health check for your DHCP servers...

 

Regards Martin