FW: [OCCAID] Late night packet loss EWR <-> BOS

[Dan Noe]

On Wed, May 10, 2006 at 12:01:12AM -0400, Mike Bran wrote:
> Dan, there is a known performance problem with the Newark-Boston connection
> (#circuit ID 95.DHEC702701.0).  I see there has been a resolution this
> morning though, but if it's still dropping packets, can you paste a traceroute
> output when you are seeing the problem in action?

OK, it gets weirder :)

What seems to be happening is that the tunnel begins dropping packets at
some point in time.  It continues to do so.. until I perform a
traceroute.  Then, everything returns to normal and remains that way for
days or longer.

I'm completely baffled by this, yet I am pretty sure the traceroute is
actually fixing the problem.  If I try to SSH over the connection,
nothing goes through until the moment the traceroute goes then instantly
SSH finishes connection.  Likewise for an HTTP request.  Previously I
had been actively using the tunnel when it dropped but then more
recently the tunnel dropped overnight and it remained down in the
morning until I performed a traceroute after which it *immediately*
began working perfectly.

Any ideas?  The endpoint here is running Linux 2.6.15.1.

-D

-- 
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                   |  Dan Noe, freelance hacker
                   |  http://isomerica.net/