Virtual Server not responding

Those look like typical TCP retries, based on the times - 3 seconds before the first retry, 6 seconds before the second, etc. Here are a few ideas off the top. Note: I'm assuming that the VS address is 10.128.144.24 from the capture above.

 

 

Typical issues

 

Some typical issues that crop up with newer installs are things like:

 

1) Arp cache issues. This is a biggie - double check for this and other L2 problems (spanning tree, etc.)

 

2) Duplicate IPs.Check for duplicate IPs, IP contention on the BigIPs (look in /var/log/ltm for errors).

 

 

What I would do next

 

Straight away fire up a CLI session on the BigiP (the active unit) and:

 

1) Tcpdump on the vlan in question filter out for the VS address. Something like: 'tcpdump -ni tcp and host 10.128.144.24'

 

2) Do the same, but look for arp issues: 'tcpdump -ni arp

 

3) Let the tcpdump in 1 run while you access the VS on the appropriate port. See what happens, if anything. If you don't see the traffic hitting you, you've got some route issue.

 

 

Assuming you've got some arp cache issues, you can run 'b load' from the CLI, which will issue a GARP on the wire on most versions.

 

 

If none of this gives you anything, call support ASAP. I'd probably do this in conjunction with any of the steps above.

 

 

Good luck!

 

-Matt