Re: [apops] Bandwidth calculation

[Philip Smith <pfs@cisco.com>]

Just adding to what Geoff said, I have found from my experience that it 
also depends on the number of customers you have. 100 dialup customers will 
probably saturate your network at 5:1, but a 1000 customers will probably 
work quite happily at 15:1. I don't have it any more, but I used to have a 
graph which showed the bandwidth required for a dialup network as it grew 
from 10 customers at V.32 (yes!) to more than 100k customers at V.90 over a 
period of 5 years. Definitely non-linear, and bandwidth requirements tailed 
off with a linear increase in customer numbers.

So, in short, overprovision to start with, and then with time you will find 
that you don't need to provide so much capacity for future customer growth.

philip
--

At 09:50 17/09/2002 +0530, HARI SHANKAR wrote:

>Is there any thumb rule available which says that X Mbps of bandwidth is 
>required for Y number of PSTN dialup ports of 56 Kbps.
>
>Hari

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