DarkSkies
Active Member
I was browsing one of my other forums this morning and came across an intereting piece of statistic. According to Telegeography South Africa has in TOTAL 2000 Mbps of International bandwidth as of mid 2002 (would appreciate if anyone can give current statistics) according to the post. (You can read the post at http://forum.prophecy.co.za/showfla...=157108&page=0&view=collapsed&sb=5&o=7&fpart=
So if there is 10,000 ADSL users at 512 Kbps, which equals 5120 Mbps, our ADSL contention ratio for International bandwidth is 2:1.
Now we factor in the dial-up users which according to the site below should be around 1.560 Million by the end of 2003. Ok lets assume everyone is on a 56.6 Kbps modem and assume that ISDN users average out lower connection speed on dial-up, so 1,560,000 users times 56.6 Kbps equals 88,296 Mbps. So after adding up all the numbers we get to 93,416 Mpbs divided by the total bandwidth of 2000 Mbps and you have a contention ration for International bandwidth of 47:1. No wonder Telkom won't give us any stats about their bandwidth capability.
Link to dial-up user stats - http://cyberatlas.internet.com/big_picture/geographics/article/0,1323,5911_380361,00.html
I haven't factored in the amount of Diginet users since I wasn't able to locate any stats on the bandwidth they use. Figure them into the picture and the contention ratio increases even futher.
While I am not 100% sure of the calculations involved in contention ratios, the above pretty much states that I am competing with 47 other users for International bandwidth. Gives you something to think about since Diginet lines to corporations will most likely further increase this value - Anyone have the number of diginet lines subscribed to ISPs and their size?
As Jerrek mentions below the bandwidth is to Africa and not South Africa specifically.
So if there is 10,000 ADSL users at 512 Kbps, which equals 5120 Mbps, our ADSL contention ratio for International bandwidth is 2:1.
Now we factor in the dial-up users which according to the site below should be around 1.560 Million by the end of 2003. Ok lets assume everyone is on a 56.6 Kbps modem and assume that ISDN users average out lower connection speed on dial-up, so 1,560,000 users times 56.6 Kbps equals 88,296 Mbps. So after adding up all the numbers we get to 93,416 Mpbs divided by the total bandwidth of 2000 Mbps and you have a contention ration for International bandwidth of 47:1. No wonder Telkom won't give us any stats about their bandwidth capability.
Link to dial-up user stats - http://cyberatlas.internet.com/big_picture/geographics/article/0,1323,5911_380361,00.html
I haven't factored in the amount of Diginet users since I wasn't able to locate any stats on the bandwidth they use. Figure them into the picture and the contention ratio increases even futher.
While I am not 100% sure of the calculations involved in contention ratios, the above pretty much states that I am competing with 47 other users for International bandwidth. Gives you something to think about since Diginet lines to corporations will most likely further increase this value - Anyone have the number of diginet lines subscribed to ISPs and their size?
As Jerrek mentions below the bandwidth is to Africa and not South Africa specifically.
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