F5 is upgrading its customer support chat feature on My.F5.com. Chat support will be unavailable from 6am-10am PST on 1/20/26. Refer to K000159584 for details.

Forum Discussion

Ayush_Gupta_332's avatar
Ayush_Gupta_332
Icon for Nimbostratus rankNimbostratus
Feb 26, 2018

BIG-IP DNS not marking the VIP down

Hi Guys, Good Day.   I have an iglb (GTM) entry that has 1 Pool, the Pool uses tcp Health monitor and has 4 members that uses Topology Load Balancing method. All the 4 members in BIG-IP DNS are VI...
application delivery
BIG-IP DNS
LTM
nathe's avatar
nathe
Icon for Cirrocumulus rankCirrocumulus
Feb 27, 2018

Do you have a bigip health monitor on the Servers (which are the LTMs in the DNS part of the GUI)? If so you shouldn't then need a monitor in the pool section too. The bigip monitor should relay virtual server health to the DNS pool.

 

See if this helps.

 

N