Nacreouswe have 3 servers in 3 priority groups. Each group has single server. condition for group is less than 1. But we are seeing traffic going to less priority group also. Is the condition should be less than 0 instead of 1. Please suggest
NimbostratusYour configuration appears to be correct for the desired balancing. Either the highest priority group pool member was unavailable, or the connections to lower priority group member originated via another Virtual/Pool (or via iRules).
"Less than 1" means no traffic is given to lower priority pool members, before 0 pool members are available from the highest priority group. You can try resetting the statistics to verify if your issue is still recurring.
This Manual seems to explain it: (Chapter "Priority-based member activation"): https://support.f5.com/kb/en-us/products/big-ip_ltm/manuals/product/ltm-concepts-11-1-0/ltm_pools.html1216212