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

Forum Discussion

Muhammad_Irfan1's avatar
Muhammad_Irfan1
Icon for Cirrus rankCirrus
11 years ago
Solved

One node is down in standby unit

I deeply confused. I have active standby pair of F5. there are about 40 pools and 20 nodes. All the nodes are up in active and all the node are up in passive accept one. I don't understand why this o...
  • nitass_89166's avatar
    nitass_89166
    11 years ago

    I am getting a ping response from the node after 90 failures.

     

    what does "after 90 failures" mean?

     

    If I am not getting ping response then I can not get TCP half open (monitor) response as well.

     

    if bigip does not get response, can you check if server does send response?

     

nitass's avatar
nitass
Icon for Employee rankEmployee
11 years ago
you may try to troubleshoot health monitor. Troubleshooting Ltm Monitors https://devcentral.f5.com/s/articles/ltm-external-monitors-troubleshooting