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ccraddock's avatar
ccraddock
Icon for Cirrus rankCirrus
Oct 01, 2019

Troubleshooting Sessions in the F5

Dear F5 Community,

 

Is there a way to troubleshoot sessions that are flowing through the F5 VS's to the back end pools? For instance, if a user complains that they were in the web portal (via the VS) and then got randomly kicked back to the login screen, is there a way to reasonably troubleshoot that issue in the F5? Are there any debugs or logs one could look at in the F5 that might help to troubleshoot an issue like that? I can troubleshoot CONNECTIONS easily enough using the "show sys connections" command as well as packet captures using tcpdump, but the actual session info, I am having trouble finding a way to troubleshoot those issues. Does the F5 keep track of the session activity flowing through it?

 

Thanks.

application delivery
BIG-IP
LTM
  • Enes_Afsin_Al's avatar
    Enes_Afsin_Al
    Icon for MVP rankMVP
    Oct 01, 2019

    Hi ccraddock,

     

    If you don't use a persistence profile in virtual server, you may encounter the problem you said.

    • ccraddock's avatar
      ccraddock
      Icon for Cirrus rankCirrus
      Oct 01, 2019

      We have a persistence profile assigned. It using encrypted cookies. Its basically the stock cookie profile just with encryption. Is there a way to troubleshoot whats happening behind the scenes with the profile?

       

      Thanks.