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Jonathan_de_GAV's avatar
Jonathan_de_GAV
Icon for Altostratus rankAltostratus
Aug 03, 2017
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GTM not acquire the Virtual Server of LTM

Hi,

 

We have a GTM and a LTM. We try to discover virtual server on LTM but it doesn't work. Virtual Server Discovery is enabled and iqdump works between two devices.

 

Do you have any idea ?

 

Thanks for all.

 

application delivery
BIG-IP
LTM
  • Jonathan_de_GAV's avatar
    Jonathan_de_GAV
    Aug 30, 2017

    Thank you very much for your help. We find the solution and the real problem. We have this configuration GTM 1, GTM 2 and GTM 3. All our GTM are synchronized.

     

    We have tested connection between GTM 1 and LTM, it's ok.

     

    We have tested connection between GTM 2 and LTM, it's ok.

     

    We have tested connection between GTM 3 and LTM, it doen't work.

     

    That's the problem.

     

    If One of your GTM group doesn't reach a LTM. All other GTM doesn't work. We have open port onfirewall for GTM 3 and now all it is ok.

     

    Thanks for all.

     

    Have a good day.

     

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  • PPawar_309940's avatar
    PPawar_309940
    Icon for Nimbostratus rankNimbostratus
    Aug 03, 2017

    Hello Jonathan,

     

    Does iquery works fine between GTM and LTM ? Also under the data centre server list when you configure your LTM, have you selected the health monitor as bigip ?

     

    Please can you explain how you have configured your GTM and LTM ? a quick overview will be helpful.

     

    Thanks, Pankaj

     

    • Jonathan_de_GAV's avatar
      Jonathan_de_GAV
      Icon for Altostratus rankAltostratus
      Aug 03, 2017

      Hello Pankaj,

       

      Thanks for your quick answer. Yes, we configure big ip has health monitor. To verify iquery we use the command : "iqdump LTM_IP" from GTM and it works fine.

       

      LTM virtual server Discovery works great on an other GTM. So we think ther is a problem on GTM But what ?

       

      I thought if iqdump work then virtual server Discovery work.

       

      We have our GTM in a network and our LTM in another network, tlnet 4353 and iqdump work fine. Thanks.

       

  • PPawar_309940's avatar
    PPawar_309940
    Icon for Nimbostratus rankNimbostratus
    Aug 03, 2017

    Hi Jonathan,

     

    When you say other GTM works fine you mean to say this GTM which is not discovering the VS on LTM are in dns sync groups and you are trying to do health monitor the VS.

     

    Normally its like below :

     

    DC1 DC2 GTM1 <---> GTM2 LTM1 LTM2

     

    So if I understand it right then you are saying GTM1 and LTM1 is fine but GTM2 and LTM1 is not fine and vice versa.

     

    Is there any firewall in between ?

     

    Thanks, Pankaj

     

  • Jonathan_de_GAV's avatar
    Jonathan_de_GAV
    Icon for Altostratus rankAltostratus
    Aug 30, 2017

    Thank you very much for your help. We find the solution and the real problem. We have this configuration GTM 1, GTM 2 and GTM 3. All our GTM are synchronized.

     

    We have tested connection between GTM 1 and LTM, it's ok.

     

    We have tested connection between GTM 2 and LTM, it's ok.

     

    We have tested connection between GTM 3 and LTM, it doen't work.

     

    That's the problem.

     

    If One of your GTM group doesn't reach a LTM. All other GTM doesn't work. We have open port onfirewall for GTM 3 and now all it is ok.

     

    Thanks for all.

     

    Have a good day.