From: Stephen C. Feldberg (scfeldberg@xxxxxxxxxxx)
Date: Wed Jan 02 2002 - 21:55:40 GMT-3
I worked for a service provider 2 years ago that built their (now defunct)
business plan around a MTU-based DSL play. From the sound of it, you are
looking for exactly the type of service we deployed. The model was based
around leasing T1 lines from our POP to multi-tenant office buildings. A 24
port DSLAM terminated up to 4 Frame Relay T1s on the WAN side and provided
24 ports of SDSL to the building. An immediate bonus to using DSL vs.
ethernet as your transport is that you will not need to run CAT5 to your
subscribers - you can use the existing copper plant in the building to
transport the DSL to each tenant suite. The DSLAMs can run either ATM or FR
on the WAN side- for your application it would seem that FR is the way to
go. FR based DSLAMS allow the delivery of FR PVCs over SDSL to the SDSL CPE
from16kbps to multi-mbps. The SDSL PVCs were terminated locally on the
DSLAM which allowed for around 4:1 over-subscription of the customer traffic
at the MTU. Email me if you would like more details.
Steve
----- Original Message -----
From: "Fred" <fd200@bellatlantic.net>
To: <ccielab@groupstudy.com>
Sent: Wednesday, January 02, 2002 7:15 PM
Subject: Traffic management
> This is the question for those folks who work in the ISP field. If you
have a
> service provider that has an office right in the same building as your
office,
> they usually give you an ethernet drop right into your office to where you
> need it and limit to whatever the bandwidth you need, 1mb - 100mb. My
issue
> is that I have 20+ customer in the same building and need to provide a fix
> bandwidth 16kbps and burst up to 64kbps or more, depend on the customer's
> subscription, how will I go about do this? Put 20+ ethernet interface in
a
> router and setup traffic management on each interface or put a WAN switch
in
> the building to drop 20+ T1/E1 with FR to all the customers?
>
> BTW, don't laugh, 16kbps may not mean anything to us in US, but it does
mean a
> lot to those countries that don't have any link to the internet at all.
=)
>
> Fred
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