Forum Discussion
Albert_Chin-A-Y
Nimbostratus
NimbostratusOnly 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?
Andy_McGrathCumulonimbus
Think you are looking in the wrong place, what you want is to configure Priority Groups within the pool before you worry about the persistence profiles
See this article on setting up Priority Groups: K7065: Configuring the BIG-IP system to use alternate servers when pool members are unavailable
Hope this helps