[31675] in North American Network Operators' Group

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Re: ATM Question

daemon@ATHENA.MIT.EDU (Thomas P. Brisco)
Fri Oct 6 13:19:03 2000

Date: Fri, 6 Oct 2000 13:14:08 -0400 (EDT)
From: "Thomas P. Brisco" <brisco@globix.net>
To: Jeff Bartig <jeffb@doit.wisc.edu>
Cc: Richard Inhand <chapinhand@yahoo.com>, nanog@merit.edu
In-Reply-To: <20001006112703.A12395@doit.wisc.edu>
Message-ID: <Pine.GSO.4.21.0010061312390.25673-100000@hq.globix.net>
MIME-Version: 1.0
Content-Type: TEXT/PLAIN; charset=US-ASCII
Errors-To: owner-nanog-outgoing@merit.edu



	One of our guys just cleared out the CEF table on
the effected interface - now pings go through just fine ...
As noted earlier, mere changes in packet options were enough to
cause different behavior [I'm trying to find a Bug-ID associated
with this ....]

							- Tom

On Fri, 6 Oct 2000, Jeff Bartig wrote:

> Date: Fri, 6 Oct 2000 11:27:03 -0500
> From: Jeff Bartig <jeffb@doit.wisc.edu>
> To: Richard Inhand <chapinhand@yahoo.com>, nanog@merit.edu
> Subject: Re: ATM Question
> 
> 
> 
> On Fri, Oct 06, 2000 at 04:50:10AM -0700, Richard Inhand wrote:
> > I'm currently looking into a weird problem at an ATM
> > peering point on the West Coast, when I ping from my
> > peer router to any of my peers I get some but not
> > total packet loss, when I ping from one router back or
> > use the loopback interface as source things are fine.
> > Whereas, with all my other ATM peering point routers,
> > for example at MAE-EAST I can ping my peers cleanly
> > from the same router. This isn't (to my knowledge)
> > affecting traffic just wondering why this strange
> > phenomenon should occur only in the one place.
> 
> Have you verified the return path of the packets from your peers?
> Are they getting to you via that peering connection or taking a
> different path back to you?



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