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The sites from which there is PingER monitoring are shown in red below, sites which are monitored by all monitoring hosts (these are referred to as beacon sites and also include monitor sites) are shown in blue, and other monitored remote sites are shown in green. From SLAC PingER monitors about 460 sites, CERN used to monitor about 132 sites, however after re-installing in December 2006) they now only monitor beacon sites (56). ICTP Trieste monitors 105 sites but only has data going back to September 2006. To the right of the PingER map we also show a map which defines how we are assigning countries to regions.
The left hand map below shows the countries we consider as part of S. Asia. The maps to the right of it show the monitoring amd remote hosts (host monitored) in S. Asia. In India we have four PingER monitoring sites: CDAC sites in Pune and Mumbai, VSNL in Mumbai and ERnet in Bangalore. In Pakistan we have five working monitoring sites: two at NIIT/NUST Rawalpindi (one on the Pakistan Educational and Research Network (PERN), the other on a Micronet DSL link), one at the National Center for Physics (NCP) at the Quaid-e-Azam university (QAU) Islamabad, one at COMSATS university Islamabad and one at PERN itself. In addition we have 3 remote (monitored) sites in Afghanistan, 3 in Bangladesh, 2 in Bhutan, 9 in India, 2 in the Maldives, 3 in Nepal, 16 in Pakistan and 6 in Sri lanka. The maps below show the location of the sites.
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South Asia as compared to the rest of the world regions
Before we start to compare S. Asia to the rest of the world it is useful to look at a World Map of Internet Users. This shows that for most the developed world (US and Canada, W. Europe, Japan, Taiwan, S. Korea) typically 40% or more of the people have Internet connectivity while for S. Asia it is less than 5%, i.e. typically a factor of 10 less.
From SLAC: 1. Packet Loss, 2. Min RTT to World Regions, 3. Unreachability, 4. Jitter
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