Can the standby LTM access virtual servers?
I have a pair of LTM's in my data center (running BigIP 9.3.0), running as an active/standby pair. My situation is this: I have a virtual server/pool setup for outbound SMTP (for redundancy: I have multiple SMTP services running)--it's members resources are a couple of my application servers. I have configured alertd/postfix on both load balancers to relay outbound alerts to my virtual server for SMTP.
The problem is this only works on the active load balancer: if I have a pool go down, I receive the alert email from the active LB: but not from the standby LB. mailq on the standby LB shows the emails in the queue, but that the standby LB cannot connect to the configured relay host (the mesage from 'mailq' is essentially (connect to [mailserver vip]: Connection timed out)
Further tests: from both the active and standby LTM, I can 'ping' the mailserver VIP; however, I can only telnet to the mailserver VIP from the active LTM (not surprising, since it sends emails): on the standby LTM, the telent connection times out.
Can anyone offer some insight as to why my standby LTM cannot access the virtual server?
Thanks in advance.