Mar 27, 2026 - For details about updated CVE-2025-53521 (BIG-IP APM vulnerability), refer to K000156741.

Forum Discussion

Amiie's avatar
Amiie
Icon for Nimbostratus rankNimbostratus
Apr 19, 2023

LTM member in pool has status offline (disabled by parent)

I will cleansing VIP not use in LTM and I found many VIP show: VIP status offline (enable)    > Pool staus offline (enable)   >> 1 member          > member  had status offline (disabled by parent)...
devops
event
LTM
Michael_Saleem's avatar
Michael_Saleem
Icon for MVP rankMVP
Apr 19, 2023

'Disabled by parent' on a pool member means that the node (the parent) has been administratively disabled (session user-disabled):

ltm node 1.2.3.4 {
    address 1.2.3.4
    session user-disabled
}

Ltm::Pool: POOL-TEST
  Availability           : offline
  State                  : enabled
  Reason                 : The children pool member(s) are down
  Available Members      : 0
  | Ltm::Pool Member: 1.2.3.4:80
  |   Availability   : offline
  |   State          : disabled-by-parent
  |   Reason         : Pool member has been marked down by a monitor

 

Amiie's avatar
Amiie
Icon for Nimbostratus rankNimbostratus
Apr 19, 2023

"administratively disabled" thats mean Server's admin had shutdown node or close service port on server right? 

F5's admin didn't disable member by process on F5?

   - When disable member by process on F5: symbol change from red diamond to black diamond symbol.

   - But This disabled by parent is grey diamond symbol.

 

Thank you for your answer.