On 25 Nov 00, at 16:36, George Sadowsky wrote:
> I'm not sure I understand the question. Most people in developed
> countries have 56 Kbps modems, and there is a slow but sure migration to
> more bandwidth through broadband connectivity such as cable models or DSL.
> I think that the practical answer for developing regions is "as much as
> you can get the telephone lines to support, up to 56K."
> Does this help?
Thanks but, no actually it did not. The practical answer does not give a good
estimate to design an optimal system in a developing or developed region.
Although the answer I was seeking should apply to design for ISPs, I was looking
for info for the design of an optimal system where there is enough money to
purchase all the required bandwidth but the application also demands that there
should be good bandwidth efficiency (without excessive wastage) as well.
I received some good answers and I have copied one below. I would like to thank
those who answered and gave possibly good design criteria. Below is one such
good answer that helped and I am posting for the benefit of others who requested
the same. The information greatly helped in a project we are involved in.
Dr Paulos Nyirenda
Malawi SDNP Coordinator
From: "Barry Raveendran Greene" <[log in to unmask]>
To: <[log in to unmask]>
Subject: RE: Capacity Planning
Date sent: Fri, 24 Nov 2000 08:59:52 -0800
I used a formula of 1/3 of the dial-up capability plus 50% of the
dial-pool to figure out upstream capacity of the POP. For a 28.8Kbps link
with 50 dial ports that would be:
28.8/3 = 9.6
50/2 = 25
25 * 9.6 = 240 Kbps.
There are other ways of doing this. Try asking the question on the
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That will get you some other points of view.
> >What is the standard or optimum allocation for bandwidth (kbps) per user
> >for Internet connections?
> >It seems difficult to get a ball figure from the Internet Standards
> >Where are such Internet data published other than searching through
> >Where can I find best practices on actual operating networks?
> >Dr Paulos Nyirenda
> >Malawi SDNP Coordinator
> >[log in to unmask]
> >Tel: +265-674979 / 824787