[24289] in North American Network Operators' Group
Re: DS-3 Error Stats
daemon@ATHENA.MIT.EDU (John Hawkinson)
Mon Jun 14 15:25:03 1999
Date: Mon, 14 Jun 1999 15:23:43 -0400
From: John Hawkinson <jhawk@bbnplanet.com>
To: Alex Bligh <amb@gxn.net>
Cc: scott w <scott@digisle.net>, nanog@merit.edu
Mail-Followup-To: Alex Bligh <amb@gxn.net>, scott w <scott@digisle.net>,
nanog@merit.edu
In-Reply-To: <E10tSM7-0005GZ-00@sapphire.noc.gxn.net>; from Alex Bligh on Mon, Jun 14, 1999 at 09:44:35AM +0200
Errors-To: owner-nanog-outgoing@merit.edu
> > Maybe I should add that I'm looking at ATM WAN switches and
> > several-thousand-mile hauls. Are ATM WAN switches more sensitive? Can
> > telcos clean up the noise on such a long haul as opposed to
> > several-hundred-mile hauls. My counters on the routers for the 'short'
> > haul lines are indeed zero.
>
> If you can see errors, put on yor camo gear. Lines, international
> or otherwise, should run clean, whatever equipment is
> connected so long as it's correctly configured. Like 0 errors.
Well, do be careful.
Most carries have "performance objectives" which they adhere to,
and they specify some number of errored seconds per day per circuit,
and those numbers may vary based on route-milage.
Unfortunately I think most of those numbers are covered under NDAs,
but I can safely say that 1 errored second/day would be well
under the criteria and 1,000 would be well over, and anything in
between depends on your carrier and route miles, etc., etc.
--jhawk
