Forum Discussion

newbie's avatar
newbie
Icon for Altostratus rankAltostratus
Apr 29, 2020

finding the LTM based on the VIP

We have quite a few LTMs and a pair of GTMs. What would be the most optimal way finding the LTM that load balances a specific url, based on that url's VIP?

 

Thanks.

application delivery
BIG-IP DNS
LTM
  • jaikumar_f5's avatar
    jaikumar_f5
    Icon for Noctilucent rankNoctilucent
    Apr 30, 2020

     , well if your on the internal network, you should be able to simply login to some server and run a tracepath to that VIP. That will give you back the last hop of that VIP, which will be the self IP of the LTM.

    With Self IP also you can login to the LTM. So job done 🙂

    #tracepath 1.1.1.1

    -sh-4.2$ tracepath 1.1.1.1
 1?: [LOCALHOST]                                         pmtu 1500
 1:  xyz   0.209ms
 1:  xyz   0.146ms
 2:  abc   0.220ms
 3:  def   0.638ms
 4:  xyz   2.388ms
 5:  qwe   44.891ms
 6:  fqdn-name.company.com                             0.306ms
 7:  no reply
 7:  ltm-hostname-vs.company.com               6000.075ms !H
     Resume: pmtu 1500
-sh-4.2$

    Let me know how it goes.