Forum Discussion
jfrizzell_43066
Nimbostratus
NimbostratusF5 LTM VIP/STP Problem
We are currently experiencing an issue in our data center. We have two F5 LTM’s with VIPs for our database cluster and webservers. In the data center, we run HP ProLiant Servers with Fault Tolerant ...
stevehuffy_1335Nimbostratus
NimbostratusFound this thread useful, so posting our solution to it, not sure if there is some other way of doing it.
Our problem was HP blade servers configured with TLB teaming initiating connections to a VIP where the F5 and HP servers were on the same VLAN - sometimes it worked, sometimes it didn't. Packet capture showed F5 sending traffic back to source MAC in request, rather than the MAC in the ARP table.
Our solution: On the VIP, we set "Auto Last Hop" to "disabled", which fixed our problem on that VLAN. It actually broke connections coming in via another VLAN through a firewall, so we just configured another VIP on that VLAN. So ended up with 2 VIPs, with same IP, with different source vlans and different "auto last hop" settings.
Amitabha_118500Nimbostratus
NimbostratusWe ran into this exact same issues months ago and running into it again now. We ended up disabling the fault tolerance on the server and didn't what was the root cause. stevehuffy 's comment explains it. Thanks A LOT. Namo Amituofo.....