Forum Discussion
Troubleshooting intermittent connectivity via LTM?
We recently acquired LTM VE. Seems to be working well,
but for one particular app, we are seeing intermittent connectivity from client
browsers. Works, doesn't work, etc. I know, this sounds like a pool member not
playing nice, but I've disabled all but one pool member to see if this resolved
the issue, but we still get random browser access/timeouts. When you run into
an intermittent issue like this, how does one determine the possible causes? I
can ping the VIP, response times are low and consistent and the default IIS
site loads without issue. It's only the custom web site on these servers that
has trouble. Editing our hosts file so that our client points directly to the
internal pool member resolves the issue so it appears to be F5 related, but
what next? Thanks in advance!
- hooleylistCirrostratusDoes the failure happen often enough that you could reproduce the issue while capturing a tcpdump on the VE? If so, analyzing the tcpdump would go a long way towards diagnosing the issue.
- dkraut_23236NimbostratusHi Aaron, as always, thank you for the valuable feedback! I think I may have resolved the issue. We noticed that the timeouts seemed to be associated with SSL requests. I found another thread in which you participated where you suggested using the Performance Layer 4 profile vs. Standard if the backend servers were performing SSL decryption. This seems to have fixed the issue since our backend web servers are indeed performing SSL decryption and not the F5. Thanks!!!!
- gannu_31427NimbostratusI am also facing same issue, But it is http requests, any thoughts?
- What_Lies_Bene1CirrostratusThere are many possible causes? As a starter for ten;
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