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

Forum Discussion

kartheeswaran_1's avatar
kartheeswaran_1
Icon for Cirrus rankCirrus
May 07, 2017

VIP is up in LTM , but showing down in GTM

I created BigipGTM and 2 Bigip ltm. Made sync with all devices. VIP is up in LTM. But in F5 BIGIP it is showing down. I verified port4353 which is working fine in gtm to ltm. kindly suggest.  
application delivery
BIG-IP DNS
Vijay_E's avatar
Vijay_E
Icon for Cirrus rankCirrus
May 08, 2017
  1. Do you see any errors in the GTM log ?
  2. Is the problem only for 1 VS in the LTM or ALL the VS in the LTM ?
  3. I recommend not using a separate monitor from GTM to that VS. Instead rely on the VS status to be conveyed to the GTM via sync group.