SteveEason
Mar 07, 2023Cirrus
Need some help troubleshooting an issue - how best to do it
We have a VIP where one specific request (GET/Terms) which sometimes fails on specific nodes in the pool. In AppInsights we see 400 errors for that specific request, but we don't see anything in the IIS logs. So we're looking at the F5 to try and see if we can get any ideas why this is happening. In the past I've used tcpdump's to filter down to those affected items and capture the traffic, however this problem is very infrequent. (We haven't seen it happen in the last 12 hours).
What would be the best approach to tracking down this traffic and error so we can see what is going on? What would you do to see the traffic?
Would this show up in the LTM logs?
Any thoughts would be appreciated!