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<ac:structured-macro ac:name="unmigrated-wiki-markup" ac:schema-version="1" ac:macro-id="f7b72f7a941a8d3e-8ba84d70-42bb4dce-ae3e8483-5055424edb968e2b4ff8ae59"><ac:plain-text-body><![CDATA[ | Throughput from SLAC to Regions of the World | Derived Throughput from SLAC to Africa Jan-Aug '09 [[xlsx | ^africa-thru-aug09.xlsx]] | MinRTT from SLAC - Aug. 2009 [[xls | ^map-africa-minrtt-aug2009.xls]] | ]]></ac:plain-text-body></ac:structured-macro> |
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<ac:structured-macro ac:name="unmigrated-wiki-markup" ac:schema-version="1" ac:macro-id="56c2dcd222717a57-9ac8c67c-49a84e54-8afcb8ed-994f040a18408a04c77a0c18"><ac:plain-text-body><![CDATA[ | 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]] | ]]></ac:plain-text-body></ac:structured-macro> |
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By August 3rd, the average RTT from SLAC to mail2.starcom.co.ug in Kampala Uganda reduced from about 780ms to about 540ms. On August the average RTT dropped further to about 380ms. Possibly in the intermediate state (540ms) only one direction was using the fibre. The traceroute measured on 8/15/09 shows the route going via ESnet to Sunnyvale then onto San Jose and Level3 that carries it to New York and London, the next hop is in Nairobi an Intersat Africa node. Hop 18 is also in Nairobi and hop 19 in Kampala. Looking at the time series of the average RTT below it is not clear the route has fully stabilized yet.
In some cases such as Uganda Telecom (81.199.21.194) the losses and fluctuations in RTT went up dramatically after the changeover. In others such a library.uonbi.ac.ke and acherarchitects.co.ke the losses abd stability appeared to improve.
More details on the Kenyatta University (www.ku.ac.ke) and Braeburn (elearning.braeburn.ac.ke) links can be found in an email from Kevin Chege of KENET.
acheraarchitects.co.ke | ealearning.braeburn.ac.ke | www.ku.ac.ke from SLAC | library.uonbi.ac.ke 3 Aug - Sep 9, '09) |
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www.ternet.or.tz (RTT truncated at 900ms) | www.ternet.or.tz (untruncated) |
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mail2.starcom.co.ug from SLAC | www.utl.co.ug | Ugandatelecom.ug |
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If one compares the RTTs seen from SLAC to East Africa with those seen from ICTP in Trieste Italy which is much closer, then:
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