[5313] in North American Network Operators' Group
Re: BBN outage
daemon@ATHENA.MIT.EDU (Patrick J. Chicas)
Mon Oct 14 22:26:40 1996
Date: Mon, 14 Oct 1996 16:25:59 -1000 (HST)
From: "Patrick J. Chicas" <pjc@off-road.com>
To: Rob Gutierrez <rmg@ranma.com>
cc: nanog@merit.edu
In-Reply-To: <199610142144.OAA11149@ranma.com>
On Mon, 14 Oct 1996, Rob Gutierrez wrote:
> Forsythe Hall, where the BBN pop is located, has a standby generator, abet
> not hooked up, to provide power when the Stanford CoGenerator facility
> goes off, like it did. The bldg UPS has plenty of power to keep the
> facilities running until the standby generator can be hooked up (BBN
> shares physical facilities with Stanford's IBM mainframe and the
> Stamford DMS-100 telephone switch).
Their DMS was down too? This is evil!
> When I used to work there, I saw that generator all the time. It collected
> a lot of dust. I was told that it was tested out from time to time :)
> I wonder why it either 1) Did not work, or 2) Was not available ...
See my previous comments about rusty generators.
> Telco wise, BBN does have a nice dirverse system. Their MCI T-3 is on
> a microwave that goes to Palo Alto, where it drops off to MCI's bay area
> fiber ring between San Jose to San Francisco.
Their HUB is connected by one microwaved DS-3? This is not good. Granted,
most DS-3 microwave radios have hot standby radios, muldems ect. on each
end but, they are always ripe for outage due to interference or path fade.
I can see the microwave as a segment of a SONET OC-3 link, only if the
other side is fiber.
> Some of their backbone T-3's
> come into a Pac Bell OC-48, which has an entirely seperate protection
> path into Stanford itself (Stanford alltogether has two Pac Bell OC-48's,
> with a third one planned!). Another fiber path belongs to MFS for more
> dirversity. So on that level, they have their act together.
This is good.. How many of BBN's peer connection run over the SONET ring?
Regards
Patrick J. Chicas
Email: pjc@unix.off-road.com
URL: http://www.Off-Road.com
--------------------------------
The Off-Road Center of The 'Net!
