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PingER data shows that the link to Qaid-e-Azam university is heavily congested. The wave of congestion starts about 9:00 am in the morning and continues to about - 6:00 pm in the evening. The graph shows the Avg RTT from NIIT to Qaid-e-Azam University from 19th Feb - 25th Feb, 2007. Sunday is less congested as compared to the rest of the weekdays which is understandable as it is holiday and less students use internet. One cannot explain why 22nd Feb was less congested as compared to other weekdays.
Qaid-e-Azam University is connected through PERN and its ISP is NTC. The traceroute results (taken on 28th Feb 11:00 am from NIIT) showed that the link from PIE (Pakistan Internet Exchange) to PERN was heavily congested. The traceroute shows that it took about 400 ms from PIE to PERN which should normally take <10 ms as the two routers are in the same city.
| Code Block |
|---|
203.99.50.201 (203.99.50.201) 0.587 ms 0.554 ms 0.512 ms 2 lo-0-bras1.dsl.net.pk (203.82.63.253) 73.298 ms 47.573 ms 47.993 ms 3 g9-12-iba.nayatel.pk (203.82.48.181) 48.001 ms 47.732 ms 47.867 ms 4 58-65-175-217.nayatel.pk (58.65.175.217) 50.030 ms 47.644 ms 48.548 ms 5 f0-gw3.nayatel.pk (58.65.166.250) 61.361 ms f1-gw3.nayatel.pk (58.65.166.254) 49.751 ms f0-gw3.nayatel.pk (58.65.166.250) 49.473 ms 6 rwp44.pie.net.pk (202.125.155.93) 50.626 ms 58.595 ms 49.983 ms 7 rwp44.pie.net.pk (202.125.148.167) 52.027 ms 49.698 ms 49.898 ms 8 perne3-I.rwp44d1.pie.net.pk (202.125.155.66) 452.197 ms 471.535 ms 458.162 ms 9 Pernisb-II.ntc.net.pk (202.83.173.236) 468.185 ms * 471.782 ms 10 192.168.2.2 (192.168.2.2) 472.025 ms 479.785 ms 480.237 ms 11 * ntc.net.pk (202.83.169.195) 475.816 ms 497.043 ms |
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| Code Block |
|---|
203.99.50.201 (203.99.50.201) 0.747 ms 0.532 ms 0.646 ms 2 lo-0-bras1.dsl.net.pk (203.82.63.253) 62.328 ms 47.572 ms 48.128 ms 3 g9-12-iba.nayatel.pk (203.82.48.181) 49.870 ms 47.520 ms 50.068 ms 4 58-65-175-217.nayatel.pk (58.65.175.217) 47.940 ms 49.597 ms 58-65-175-221.nayatel.pk (58.65.175.221) 48.453 ms 5 f0-gw3.nayatel.pk (58.65.166.250) 61.059 ms 49.549 ms 47.998 ms 6 rwp44.pie.net.pk (202.125.155.93) 48.025 ms 49.751 ms 49.873 ms 7 rwp44.pie.net.pk (202.125.148.167) 49.990 ms 49.507 ms 49.996 ms 8 PERNe3-I.rwp44d1.pie.net.pk (202.125.155.66) 52.041 ms 57.621 ms 51.945 ms 9 Pernisb-II.ntc.net.pk (202.83.173.236) 56.065 ms 57.671 ms 60.454 ms 10 192.168.2.2 (192.168.2.2) 65.472 ms 192.168.2.138 (192.168.2.138) 61.589 ms 192.168.2.2 (192.168.2.2) 69.556 ms 11 ntc.net.pk (202.83.169.195) 119.716 ms 93.597 ms 124.098 ms .99.50.201 (203.99.50.201) 0.571 ms 0.528 ms 0.460 ms 2 lo-0-bras1.dsl.net.pk (203.82.63.253) 81.119 ms 47.687 ms 47.923 ms 3 g9-12-iba.nayatel.pk (203.82.48.181) 47.982 ms 47.643 ms 50.018 ms 4 58-65-175-221.nayatel.pk (58.65.175.221) 49.979 ms 58-65-175-217.nayatel.pk (58.65.175.217) 47.608 ms 58-65-175-221.nayatel.pk (58.65.175.221) 49.669 ms 5 f1-gw3.nayatel.pk (58.65.166.254) 51.653 ms 49.582 ms 48.004 ms 6 rwp44.pie.net.pk (202.125.155.93) 50.199 ms 49.399 ms 50.041 ms 7 rwp44.pie.net.pk (202.125.148.167) 234.037 ms 243.761 ms 215.954 ms 8 PERNe3-I.rwp44d1.pie.net.pk (202.125.155.66) 58.053 ms 59.519 ms 50.077 ms 9 Pernisb-II.ntc.net.pk (202.83.173.236) 53.925 ms 57.614 ms 51.968 ms 10 192.168.2.2 (192.168.2.2) 64.026 ms 73.685 ms 192.168.2.138 (192.168.2.138) 300.008 ms 11 ntc.net.pk (202.83.169.195) 71.615 ms 247.703 ms 500.154 ms |
The last hop is taking 200ms indicating congestion at the link.
Sri Lanka
The Lanka Education And Research Network (LEARN) is the NREN (National Research and Education Network) of Sri Lanka. LEARN interconnects 24 sites with link speeds ranging from 128kbps to multiple 2Mbps links. The establishment of 2Mbps links to 8 sites with the financial support of Sida/SAREC has been a major milestone in this path. LEARN is currently in the process of upgrading the link bandwidths to 16 of its sites to 10Mbps over optical fiber. Several links have already been upgraded, and the remaining links will be upgraded by June 2007. This upgrade was made possible with the World Bank funded IRQUE Project providing funds for 10 of the 16 links.
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