Forum Discussion

Albert_Chin-A-Y's avatar
Albert_Chin-A-Y
Icon for Nimbostratus rankNimbostratus
Sep 25, 2018

Only 1 active member of 2-member pool for load-balancing

Hi. We are running LTM 11.5.3 and have a VS configured as follows with a pool of two members: Default Persistence Profile: source_addr Fallback Persistence Profile: dest_addr

 

Even though we have 2 members in the round-robin load-balancer pool for this VS, we only want to the F5 to send traffic to one of the members. The other member should be available only when the first is offline. I do not think the above will achieve this. However, according to the documentation: Source address affinity persistence ... The persistence mask feature works only for virtual servers that implement source address affinity persistence. By adding a persistence mask, you identify a range of source IP addresses to manage together as a single source address affinity persistent connection when connecting to the pool.

 

Our source_addr persistence setting is:

 

The default persistence mask is 255.255.255.255. So, according to the above text, should we set the mask to 0.0.0.0 to achieve what we want?