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Throughput to Africa

Derived Throughput from SLAC to Africa Jan-Aug '09 [[xls

^africa-thru-aug09.xls]]

MinRTT from SLAC - Aug. 2009 [[xls

^map-africa-minrtt-aug2009.xls]]

PingER Coverage in Africa

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It can be seen that NRENs are being created.

To understand the importance of NRENs and IXPs to reduce the use of intercontinental providers to get between African countries, we can look at the state of direct connections between African countries by measuring the traceroutes within Africa. Below on the left and in the middle are the routes taken from South Africa to other African countries in September 2005 and August 2009 and on the right the routes from Burkina Faso to other African countries in August 2009. In the middle map countries which were only accessible by satellite have horizontal shading lines.

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Routing from South Africa to African Countries (Sep '05)

Routing from South Africa to African Countries (Aug '09) [[xls

^routing-africa-aug2009.xls]]

Routing from Burkina Faso to African Countries (Aug '09) [[xls

^routing-africa-aug2009.xls]]

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In September 2005 most traffic from South Africa to the rest of Africa took costly international links, only Botswana and Zimbabwe had direct routes. The situation has improved recntly recently as direct reoutes routes from South Africa to namibiaand Botswana wrew adfdedNamibia and Botswana were added. More details on the routes to African countries from several measurement points around the world measured in Spring 2009 can be seen in a spreadsheet of African routing and inferences.

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Steve Song pointed out that a good PingER point would be the Durban University of Technology. They are the only university in South Africa to be currently connected to Seacom. All the rest are waiting for the development of the national SANREN backbone, later this year. I added www.dut.ac.za to the list of hosts monitored by PingER on 8/6/09. We will look to see whether we can see differences between it and other hosts monitored in South Africa.

Later Results Illustrating Impact

To assist in the selection of hosts in this region from the pingtable results, we created an affinity group that contains all hosts in Kenya, Mozambique and Tanzania. This makes it much simpler to look at the minimum RTT for just such hosts for the last few days

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