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On Tue, 05 Aug 2008 16:12:21 +0100, Invisible wrote:
> Have you ever spent an entire day working on an important problem,
> finally thought you had it solved, and then discovered that actually it
> wasn't solved at all?
Many, many times. Had a network bridged loop problem a few years ago
caused (we think - never did find the root cause) by a failure in STP
between two redundant routers. The vendor's solution was "unplug the
cable between the two routers for 20 seconds, wait for the software to re-
route, and then plug it back in".
We "fixed" it the first day (we thought) and at 6 AM the next morning, it
happened again.
Just you try and do a sniffer trace of a billion packets and find the
cause. <sigh>
That was one of the nastiest we had. We ended up having to redesign the
system because the vendor couldn't figure it out.
Jim
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