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<ac:structured-macro ac:name="unmigrated-wiki-markup" ac:schema-version="1" ac:macro-id="961628fffaf72be7-afbed06c-4c0547c8-bcc2ab45-0b58deaad68c0540a9e1114e"><ac:plain-text-body><![CDATA[ | 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="9cf21aafa183dbc2-8e8fb6c6-4ec9498e-a72d8619-c179f2cc3a3864a6562186a9"><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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One host (www.aisha.ac.zm) of the 6 monitored in Zambia improved its RTT from about 720ms to 550ms on August 20, 2009 (see below). THey then spent many days moving the link over to the terrestrial lines. During this time the performance was very unstable (high losses) and there were big changes in RTT. It is probable the link in one direction was using a GEOS while the other was an all terrestrial link and the large dips to 400ms were when both legs were using terrestrial links. We believe the terrestrial path goes via Botswana and Namibia. The traceroute |../display/IEPM/Traceroute+from+SLAC+to+Zambia%2C+9-9-2009|\ from SLAC on 9/9/09 appeared to use a satellite link in at least one direction. THe The final cutover to terrestrial linkis in both directions appears to have been made on October 23rd when the RTT drpped to ~350ms and the link appeared more stable. On October 2, 2009 Mike Jensen reported that the traceroute from Rome to www.aisha.ac.zm|../display/IEPM/Traceroute+ to + www.aisha.ac.zm +Oct+2%2C+2009+from+Rome| \ was well below 450ms and thus appears to be a terrestrial link. However the tracreoute from SLAC was still taking over 550ms. Also the traceroute from TENET/Cape Town South Africa to www.aisha.ac.zm|../display/IEPM/Traceroute+from+TENET+%28Cape+Town%29+ to + www.aisha.ac.zm | \ took over 650ms. The traceroute from NUST, Islamabad, Pakistan to mail.unza.zm |../display/IEPM/Traceroute+from+NUST%2C+Islamabad+to+UNZA.ZM| \ takes less than 450ms and appears to be a terrestrial path going via Namibia. On October 7th 2009 the traceroute from SLAC to mail.unza.zm|../display/IEPM/Traceroute+from+SLAC+to+mail.unza.zm|z \ appeared to be terrestrial and went via Namibia.
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