[11211] in North American Network Operators' Group
Re: Terminating many T1's
daemon@ATHENA.MIT.EDU (Brian Horvitz)
Tue Jul 22 22:20:49 1997
Date: Tue, 22 Jul 1997 22:07:01 -0400 (EDT)
From: Brian Horvitz <horvitz@websecure.net>
To: Nathan Stratton <nathan@netrail.net>
cc: "Ben Kirkpatrick, ELI" <blkirk@float.eli.net>,
Stephen Balbach <stephen@clark.net>, nanog@merit.edu
In-Reply-To: <Pine.BSF.3.95q.970722213118.15836A-100000@netrail.net>
Actually, up in Boston, MFS derives all their pricing by taking the Nynex
end-to-end price and subtracting a certain percentage (at least 10%). I
may be mistaken but, I think they still do this even with the DS3 Hub.
You still pay two chan terms. A Nynex chan term is about $200 so this
ends up being quite an expense. The overall savings still makes it worth
while if you are going to sell a lot of T1s - if only for the headache,
you only need two aspirin at the end of the day instead of four.
Brian
On Tue, 22 Jul 1997, Nathan Stratton wrote:
> On Tue, 22 Jul 1997, Ben Kirkpatrick, ELI wrote:
>
> > On Tue, 22 Jul 1997, Stephen Balbach wrote:
> > > 1. Cisco serial ports and rack CSU/DSU's. Exspensive. Lot of space.
> > Cisco has a channelized DS3 card. Wire once to dacs and provision in
> > software only.
> >
> > > 2. MAX TNT for T1's connecting to a backbone Cisco. Theoretically up to 140
> > > T1's in 1 small box with built-in CSU/DSU's. Unproven?
>
> Vary.
>
> > > 3. Cascade. Similair to TNT approach, very exspensive untill you reach
> > > 70+ T1's in a chassis.
> > Cascade has a channelized DS3 card as well. Good for combining many
> > customers who have a physical T1. Split out at the dacs.
>
> Yes tend to be big bucks, but is not that bad if you have many T1s to
> terminate.
>
> > > 4. Chanellized DS3. Don't know anything about it - can MFS provide circuits
> > > this way via a DS3 handoff? No CSU/DSU required? Any other costs/issues?
> > Channelized DS3 stuff only seems to be useful for putting mulitple
> > customers on a single physical circuit. You need to be able to break it
> > out to the DS1 level for each customer. Perhaps MFS, PacBell, etc can do
> > this? It's probably just a matter of them defining that "product".
> > (I.E. Feed MFS a DS3 and they give a T1 to each of your customers.)
>
> Yes, the Cascade and Cisco CT3 have a built in M13 built in. All you need
> to do is order a DS3 HUB into the providers you want. What we do is run a
> few DS3s into the COs in our area. You may want to run a DS3 into a few
> telcos also. They can you get the best price for your customers.
>
> DS3 HUBs can be a little on the high side, but they more then pay for
> themselves. Say you run a DS3 HUB into Bell Atlantic, you spend around 3K
> for the HUB. When you order your customers T1s you only order a 1/2
> channel term. So you can more then pay for it with around 9 - 13 DS1s.
>
>
> Nathan Stratton President, NetRail,Inc.
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> Phone (888)NetRail NetRail, Inc.
> Fax (404)522-1939 230 Peachtree Suite 500
> WWW http://www.netrail.net/ Atlanta, GA 30303
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> great strength. - Psalm 33:16
>
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