health monitor issue from partition
Dears,
I have a strange behavior on my f5 BIG-IP (version 11.4.1) related to health monitor on nodes & pools. The f5 is partitioned into 3 partitions along with default common partition. Each partition has its own configuration and included default gateway and route domain. The problem is when trying to insert an external node into a pool as pool member and I choose health monitor type : TCP --> its not working (always offline in red) However ECHO-ICMP is working properly.
As well telnet from F5 cmd is not working within the pratition (rdsh X) however it works from F5 management.There is no asymmetric routing in our case and the f5 is placed one armed leg mode.
I tried to run wireshark on the node itself and discovered that the node is not replying back on SYN messages sent from F5 Partition IP.
Best Regards, Ralph El Habr