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hn.ly appeared to again be reachable on April 27, 2011. However there was further outage on May 8th 2011 when the RTT dropped from ~ 200ms to ~ 75ms as seen from SLAC. Since such an RTT is not possible between SLAC and Libya, it appears there is a proxy probably somewhere in N. America.

Later in the year, we looked at the Libya nodes and found that the host LY.BCT disappeared in March. One can see that for four random days, we were able to reach the node however, the node vanished in June with no contact till date.

Libya Telecom and Technology remained accessible all of the year however spikes in RTT were observed in September and in October.

Libya Aero Department disappeared in March and reappeared in October with reasonable RTT. LY.HN had an RTT around 75ms from June till October. Since such a less RTT is not possible between SLAC and Libya, it is inferred that the said host has moved to somewhere in N.America.

In the figure below, the RTT graphs of Libya hosts is shown. Aero department is connected to SLAC with a green line where Green line shows that the RTT between the two lies in the range 200-300. LY.HN is represented with blue line showing the RTT to be below 100ms. LY.BCT is indicated with black line representing no measurement was made. The figure also highlights the location of the hosts on the geo-map. Image Added

Yemen

www.queenscollege.edu.ye in the capital of Yemen, Sanaa, was no longer accessible from May 16th to May 22 2011. The diurnal variation after May 22nd was less than before the outage, possibly indicating less congestion due to lighter Internet use. www.adencomplex.com.ye in Aden City saw a similar pattern of accessibility.

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