5 May
2008
5 May
'08
4:23 p.m.
Did your inbound path change as a result?
Yes, I was trying to re-balance our inbound traffic a bit better. The route-map change resulted in about 30% of our traffic coming in via our other provider. The change was made around 16:00 (CDT) last Friday, about 72 hours before this problem was brought to my attention.
Sounds like a path asymmetry issue might be involved.
But why would the problem last almost 72 hours and be solved by a single ICMP packet to a particular router? And why would only two of our hosts be affected while all of our other systems work just fine? I don't mean to whine, really! And I really don't mean to disagree, I'm no expert in this stuff. I just don't understand what seems like a very fine grained problem.