Forum Discussion

Gajji's avatar
Gajji
Icon for Cirrostratus rankCirrostratus
May 07, 2021

Health Monitor

Health monitor has TCP

 

same server(10.25.26.23) has multiple port (80,443,88 , 666) has backend

 

what should be the monitor for it...

if i apply tcp_80, tcp_443 , tcp_88 and tcp_666.... when of the port goes down it will mark all as down.

 

application delivery
BIG-IP
  • Amine_Kadimi's avatar
    Amine_Kadimi
    Icon for MVP rankMVP
    May 09, 2021

    "what should be the monitor for it", this depends on your requirements, but in the pool configuration under advanced settings you can specify what is the number of monitors that should be up for the member to be marked up. The setting entry is called "Availability requirement" and you can tell the system to either require all the monitors to be up, or at least a number you specify. Default is all so this may be the cause of your members being marked down

  • Gajji's avatar
    Gajji
    Icon for Cirrostratus rankCirrostratus
    May 17, 2021

    If we specify some number and based on that only backend should be marked as down..

    so let say if one only one member in LB goes down , LB will still send traffic to backend and user might complain that there connection isn't working.