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Introduction
We used pingtable.pl to look at the "Directivity (Alpha)" of connections from UNIMAS to other hosts in S.E. Asia.
We observed from UNIMAS:
->W >West MY A~0.45
->PH via JP A~0.22
->ID via HK A~0.17, traceroute via Telecom Malaysia
->TH via SG A~0.3, traceroute via Telecom Malaysia, SINGTEL
->BR via KL-HK A~0.07, traceroute via Telecom Malaysia and PCCW Global (HK)
->KH via HK-VN A~0.16
->VN, traceroute via Telecom Malaysia and PCCW Global (HK)
->SG A~0.23, traceroute via MYREN and TEIN3
Apart from Western Malaysia the routes looked very indirect (Alpha < 0.45)
The routing was initially estimated using the TEIN3 map (see below) and the PCCWGLOBAl map (for Brunei).
TEIN3 map for S.E. Asia | PCCW Global map for S.E. Asia | SACOFA map for E. Malaysia |
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see here | see here | see here |
However according to the traceroutes only the route to Singapore actually uses TEIN3. This is also the only route to use MYREN. All the other routes use Telecom Malaysia
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. Instead of the TEIN3 map we therefore used traceroutes to determine the routes.
Looking at the routes using Telecom Malaysia (58.26.240.61), it can be seen that there is a lot of variability in the RTTs reported by this node. This bears further investigation, it is possible this node is congested with considerable queuing for several of the routes.
Country | ms | ms | ms | Avg | Stdev |
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VN | 13 | 5 | 4 | 7 | 5 |
BN | 46 | 53 | 69 | 56 | 11 |
TH | 11 | 74 | 100 | 62 | 46 |
ID | 13 | 12 | 1 | 9 | 7 |
For more on the Indonesian links see here.
Traceroutes from UNIMAS to S.E. Asia
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see http://www.tein3.net/upload/pdf/1211_TEIN3_Topology_02.12.pdf
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see http://www.pccwglobal.com/images/stories/brochures/inf_map_lk_201105.pdf
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Traceroutes from UNIMAS to Malaysia
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