[28797] in North American Network Operators' Group

home help back first fref pref prev next nref lref last post

Re: Bell Atlantic DACS failure 280 T3s

daemon@ATHENA.MIT.EDU (Travis Pugh)
Tue May 16 16:57:34 2000

Date: Tue, 16 May 2000 16:54:22 -0400 (EDT)
From: Travis Pugh <tpugh@shore.net>
To: Sean Donelan <sean@donelan.com>
Cc: nanog@merit.edu
In-Reply-To: <20000516184835.26391.cpmta@c004.sfo.cp.net>
Message-ID: <Pine.GSO.4.21.0005161651360.17950-100000@cider.ecosoft.com>
MIME-Version: 1.0
Content-Type: TEXT/PLAIN; charset=US-ASCII
Errors-To: owner-nanog-outgoing@merit.edu



I'm curious about BA DACS.  I don't know if this is standard, but they
are the only telco who has also told me "we put a loop up on the DACS,
but sometimes it doesn't work ... so don't assume that it is a valid
test."  And I have witnessed that same happening.  If you can't create a
simple maintenance loop on BA's DACS, their choice of vendors does seem
questionable.

-travis

On 16 May 2000, Sean Donelan wrote:

> 
> Bell Atlantic lost another DACS yesterday taking out 280 T3s for 3-1/2 hours
> in the northeastern corridor and New York City.
> 
> I'm not a transmission person, but what is the problem with DACS?  Why
> do these "highly reliable" systems fail in such catastrophic ways?
> 
> 
> 
> 



home help back first fref pref prev next nref lref last post