The load balancing on GTM is not working properly. Preferred is Global Availability and rest are none.

Hi Scott, Thanks for shedding some light on this , which helped to troubleshoot the root cause.

So GTM was trying to communicate to an old LTM from which the server object was removed and put into another LTM but we forgot to remove the server objects hence we were getting continous no reply from big3d.

Also I reemoved the gateway icmp monitor which I had within the pool in GTM .

Above troubleshooting resolved the issue.

The issue was due to the combination of: -2 different VS -On 2 different servers -they are sharing the same ip -they use additional monitor /Common/gateway_icmp

Then when a bigip is responsible for probing both the VS at the same time the big3d response does not contain the server_name and the vs_name and the gtmd thinks that there is no response for his request (his request contained, vs_name and server). By removing the monitor or the vs from the pool we managed to resolve the issue.