Forum Discussion

igorzhuk's avatar
igorzhuk
Icon for Altostratus rankAltostratus
Jul 04, 2023

priority group activation

Hi all, I used f5 priority group activation When my pool member fail and the second pool member come to active the traffic forward to the lower group pool member, But when the higher pool member...
application delivery
priority group activation
mihaic's avatar
mihaic
Icon for MVP rankMVP
Jul 04, 2023

As far as I know, new connections will go to the higher group members of the pool once they become available. I don't think that there is a mechanism to move traffic from lower-priority group members to the higher one when this comes available. The lower priority members will process the established connections , but the new ones will go to the higher priority group members.

found these, they might help if you use an irule:

https://community.f5.com/t5/technical-forum/priority-group-failback/m-p/181850#M165544

https://community.f5.com/t5/technical-forum/priority-group-failback/m-p/52718#M36412

https://community.f5.com/t5/technical-forum/priority-group-activation-failback-with-http-cookie-insert/m-p/237687#M221381

https://community.f5.com/t5/technical-forum/reset-connections-to-lower-priority-group-member-when-higher/m-p/271537#M255231

 

 

 

igorzhuk's avatar
igorzhuk
Icon for Altostratus rankAltostratus
Jul 05, 2023

I found this Irule: it maybe can help me: 

when LB_SELECTED {
  if { ([IP::addr [LB::server addr] equals "low-priority-ip"]) and ([active_members pool_name] > 1) } {
    LB::reselect
  }
}

 But my traffic is not HTTP is SMB traffic [445], when LB_SELECTED trigger - how I know it's only ones in TCP connection - no? Because if yes LB:: reselect will not work for existing connections, [and its not VS that make oneconnect]