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Message: <blockquote data-quote="rajushe" data-source="post: 3731102" data-attributes="member: 158460">Ha ha ha.. Don't confuse the technical stuffs to users .. SEA-ME-WE 3 , SEA-ME-WE 4 , FLAG, Indo Lanka etc are international Fibre cables which provide SDH transmission links ( Like STM1 . STM4 ) etc. these cables are implemented by many operators as a "Consortium". You can buy / lease a connection to any operator in any country through these cable systems.  Internet Backbone is refered as how ISPs are connected with each others and with what capacity. If SLT has a link to Deutsche Telecom, it will lease a STM1 / 4 Circuit in SMW 3 or SMW 4, The transmission link might go through India. But any operators in India will not get the IP traffic from SLT. It is a pure transmission link. "IP hop" in the traceroute represents the ISPs in which our IP traffic gets routed. The next IP hop is the next ISP which is connected to SLT. If SLT doesn't have any IP connectivity to India and only connection with Deutsche Telecom your IP traffic will first go to Deutsce Telecom then from that ISP only it will travel to India, even though SMW cable goes through India... These are basics in telecommunication and data networking. The person who started this thread doesn't know the routing basics and telecommunications basics. I am working in Data network as an administrator and have some ISP experience. Pls check the following link. This is the connectivity report <a href="http://www.cidr-report.org/cgi-bin/as-report?as=9329&view=2.0" target="_blank">http://www.cidr-report.org/cgi-bin/as-report?as=9329&view=2.0</a>AS Adjancency ReportIn the context of this report "Upstream" indicates that there is an adjacent AS that lines between the BGP table collection point (in this case at AS2.0) and the specified AS. Similarly, "Downstream" refers to an adjacent AS that lies beyond the specified AS. This upstream / downstream categorisation is strictly a description relative topology, and should not be confused with provider / customer / peer inter-AS relationships. 9329 SLTINT-AS-AP Sri Lanka Telecom InternetAdjacency: 10 Upstream: 3 Downstream: 7Upstream Adjacent AS listAS9498 BBIL-AP BHARTI Airtel Ltd.AS3320 DTAG Deutsche Telekom AGAS2914 NTT-COMMUNICATIONS-2914 - NTT America, Inc.Downstream Adjacent AS listAS45517 AIRTEL-AS-AP Bharti Airtel Lanka Pvt. LimitedAS38229 LEARN-LK Lanka Education & Research Network, NRENAS17904 SLTASUL-LK Sri Lankan AirlinesAS38573 VIRTUSA-IN-AS Virtusa Global ASAS45356 MOBITEL-LK IS Group, No:108, W A D Ramanayake Mawatha,AS7642 DHIRAAGU-MV-AP Dhiraagu Internet ServicesAS5087 LANKA-COM Lanka Communication Services <a href="http://www.cidr-report.org/cgi-bin/as-report?as=9329&view=2.0" target="_blank">http://www.cidr-report.org/cgi-bin/as-report?as=9329&view=2.0</a>  Upstream means the Internet Backbone providers of SLT and Downstream means SLT's customers.  I wonder why Ruckshan estimates others with his knowledge. We are discussing here for the benefits of other users. I have good experience in ISP industry. I am ready to discuss technical matters here. If you guys do not want the technical discussion. I will leave.  I am 100% sure and can prove that SLT uses Airtel , Deutsche Telekom and NTT Backbone . ( Deutsche and NTT are included in their Map) Sandun if you think that SMW shortest path the traffic should goSLT==> India==>Karachi => Arab==> Suez==> to Europe But the IP traffic is not going thatSLT==> Airtel==> some ISP in Singapore==>US==> I believe you would understand the IP hops( routing) and SMW transmission hops. Tracing route to <a href="http://www.yahoo-ht3.akadns.net" target="_blank">www.yahoo-ht3.akadns.net</a> [209.191.93.52]over a maximum of 30 hops:1 * * * Request timed out.2 33 ms 20 ms 44 ms 220.247.232.83 18 ms 21 ms 17 ms 220.247.197.2494 18 ms 17 ms 18 ms 222.165.130.2335 18 ms 21 ms 18 ms 222.165.130.2 ==> SLT6 453 ms 458 ms 465 ms AES-Static-061.42.22.125.airtel.in [125.22.42.61]7 465 ms 462 ms 450 ms 125.21.167.153 ==> Airtel8 472 ms 458 ms 447 ms if-7-0-0.core1.S2E-Singapore.as6453.net [216.6.91.73] ==> Singapore9 419 ms 420 ms 414 ms if-3-0-0-946.core1.S9R-Singapore.as6453.net [209.58.82.109]10 613 ms 612 ms 607 ms if-4-0-0-996.mcore5.LAA-LosAngeles.as6453.net [209.58.33.17]11 669 ms 658 ms 649 ms if-5-0-0-959.core2.DTX-Dallas.as6453.net [209.58.33.10]12 630 ms 630 ms 633 ms ix-4-1.core2.DTX-Dallas.as6453.net [66.198.2.10]13 617 ms 641 ms 633 ms ae2-p100.msr1.mud.yahoo.com [216.115.104.105]14 642 ms 631 ms 664 ms te-8-1.bas-c1.mud.yahoo.com [68.142.193.5]15 645 ms 635 ms 637 ms <a href="http://www.yahoo.com" target="_blank">www.yahoo.com</a> [209.191.93.52]Trace complete.  Again, asking Rukshan , not to condemn people without understanding the basics of networking and technology...Better ask a person who knows these topics</blockquote>

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