VIP to VIP communication

Hi Shayne,

 

 

I've been working on a similar implementation recently and it's working fine. There shouldn't be anything that would cause LTM to stall a connection for 20 seconds. The main thing that might change when you route the Apache to app flow through a VIP is LTM could be configured to translate the source IP to its own address. If there is SNAT on the LTM to app connection, it's possible that some type of validation is being done on the app. I'd try running a tcpdump on LTM and the applciation (using tcpdump for *nix or Wireshark for Windows) and see what's happening. If you're using Wireshark, you can add a column for time delta. It should be pretty clear where the latency is occurring. If you get stuck, you can compare the trace with a successful test bypassing LTM for the Apache to app connection.

 

 

Aaron