Mar 27, 2026 - For details about updated CVE-2025-53521 (BIG-IP APM vulnerability), refer to K000156741.

Forum Discussion

surya1's avatar
surya1
Icon for Nimbostratus rankNimbostratus
May 15, 2019

GTM monitoring to back end server.

Hi Expert, I want to understand How the GTM monitors virtual servers. I understand that GTM run Iquery to monitor the virtual servers configured in LTM. We have an issue with application through VI...
application delivery
BIG-IP DNS
devops
LTM
Oscar_Pucheta's avatar
Oscar_Pucheta
Icon for Cirrus rankCirrus
May 28, 2019

Hi Surya,

don't you have a monitor assigned to the pool in the GTM? You can assign monitors on the server definition or within the actual pools. if you run tcpdump in the server itself, it could be the monitoring traffic is coming from the LTM and not the GTM.

 

Best Regards,

Oscar Pucheta

https://www.australtech.net

https://www.linkedin.com/in/npucheta/