Forum Discussion

KimiLi_147173's avatar
KimiLi_147173
Icon for Nimbostratus rankNimbostratus
Jan 12, 2017

From GTM the datacenter is incorrectly down

Hi all, We have changed the LTM hardware devices of one datacenter on GTM, which have same network configuration as the old ones', and I ran the command "bigip_add x.x.x.x" again successfully on both new LTM and GTM devices.

 

However from GTM I can see all the virtual servers on the new LTM but none of them is up as it should be, monitor is bigip, and the datacenter is displayed down either.

 

Why is that? Did I miss something? Thank you.

 

application delivery
BIG-IP
LTM

2 Replies

Sort By
  • Leonardo_Souza's avatar
    Leonardo_Souza
    Icon for Cirrocumulus rankCirrocumulus
    Jan 12, 2017

    The GTM may use any other BIG-IP device for monitoring. Normally, it selects a BIG-IP device in the same datacenter as the device been monitored. You can also force that with prober pools.

    Enable this db key, and check the logs. It should tell who did the monitoring, so you can focus in that device.

    tmsh modify sys db gtm.debugprobelogging value enable

  • FMA's avatar
    FMA
    Icon for Nimbostratus rankNimbostratus
    Jan 12, 2017

    I beleive in GTM you should remove health-monitor from the virtual-server which was discovered on LTM.