For more information regarding the security incident at F5, the actions we are taking to address it, and our ongoing efforts to protect our customers, click here.

Forum Discussion

Mohit_Rathee's avatar
Mohit_Rathee
Icon for Nimbostratus rankNimbostratus
Feb 22, 2019

Default Pool Selection if irule selected pool is down.

We have a applied a irule to VS who selects a pool X with a single node X based on HTTP header. My question is that if node X is down which in turn make the pool down ,will the traffic will be direc...
BIG-IP
devops
iRules
Andy_McGrath's avatar
Andy_McGrath
Icon for Cumulonimbus rankCumulonimbus
Feb 23, 2019

If you select a pool and it is down, has no members, you will trigger a LB_FAIL event. There is no intelligence in the pool command.

You need to use the active_members command.

when CLIENT_ACCEPTED {
 if { ([IP::addr [IP::client_addr]/24 equals 10.10.1.1]) && ([active_members Pool_X] > 0)} {
   pool Pool_X
 } 
}