Latest ads
-
Video Content Creator
- pramukag
- Updated:
-
QA Engineer Intern
- pramukag
- Updated:
-
Sell your Land, House on idamata.lk for FREE
- sajith.xp.pk
- Updated:
-
Handmade Character Soft Toys- anil1961
- Updated:
-
Bodim.lk out now !- Manoj Suranga Bandara
- Updated:
Discussion About ISP's In Sri Lanka
- Thread starter rukshankb
- Start date
rajushe said:
Let me tell you something that you aren't aware of, do you know that when the sea-me-we cable damaged SLT has leased a STM 4 600 Mbps from aa indian sevice provider? the cable problem hasn't solved yet. So simply they are utilizing that backup till the cable fixed. So nothing to hoot here it's just your unawareness.
SaNDun said:Check this http://en.wikipedia.org/wiki/SEA-ME-WE_4
SLT uses SEA-ME-WE 4 Backbone.. It doesn't belong to bharathi airtelcheck the network topology also.. nearest hop to sri lanka is Chennai, India which is managing by Bharti Infotel Limited (not Airtel
). And also Airtel is subsidary of Bharathi Ventures.. same as Mobitel is a subsidary of SLT.. So don't get in to wrong conclutions
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
http://www.cidr-report.org/cgi-bin/as-report?as=9329&view=2.0
AS Adjancency Report
In 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 Internet
Adjacency: 10 Upstream: 3 Downstream: 7
Upstream Adjacent AS list
AS9498 BBIL-AP BHARTI Airtel Ltd.
AS3320 DTAG Deutsche Telekom AG
AS2914 NTT-COMMUNICATIONS-2914 - NTT America, Inc.
Downstream Adjacent AS list
AS45517 AIRTEL-AS-AP Bharti Airtel Lanka Pvt. Limited
AS38229 LEARN-LK Lanka Education & Research Network, NREN
AS17904 SLTASUL-LK Sri Lankan Airlines
AS38573 VIRTUSA-IN-AS Virtusa Global AS
AS45356 MOBITEL-LK IS Group, No:108, W A D Ramanayake Mawatha,
AS7642 DHIRAAGU-MV-AP Dhiraagu Internet Services
AS5087 LANKA-COM Lanka Communication Services
http://www.cidr-report.org/cgi-bin/as-report?as=9329&view=2.0
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 go
SLT==> India==>Karachi => Arab==> Suez==> to Europe
But the IP traffic is not going that
SLT==> Airtel==> some ISP in Singapore==>US==>
I believe you would understand the IP hops( routing) and SMW transmission hops.
Tracing route to www.yahoo-ht3.akadns.net [209.191.93.52]
over a maximum of 30 hops:
1 * * * Request timed out.
2 33 ms 20 ms 44 ms 220.247.232.8
3 18 ms 21 ms 17 ms 220.247.197.249
4 18 ms 17 ms 18 ms 222.165.130.233
5 18 ms 21 ms 18 ms 222.165.130.2 ==> SLT
6 453 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 ==> Airtel
8 472 ms 458 ms 447 ms if-7-0-0.core1.S2E-Singapore.as6453.net [216.6.91.73] ==> Singapore
9 419 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 [2
09.58.33.17]
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 www.yahoo.com [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
Last edited:
rajushe said:
No man I pointed out that they are using the Airtel backbone temporarily because of the cable cut. Feel sorry for you because you haven't got the point here.
Cable cut is not a breaking news for me but this will be a breaking news for you because you weren't aware of why SLT us utilizing a STM 4 from a indian provider
kisanka_gr said:No man I pointed out that they are using the Airtel backbone temporarily because of the cable cut. Feel sorry for you because you haven't got the point here.
Cable cut is not a breaking news for me but this will be a breaking news for you because you weren't aware of why SLT us utilizing a STM 4 from a indian provider
I didn't discuss abouth the reason why SLT uses Airtel now. What you are telling is correct. It might use Airtel Backbone because of the cable failure. But ppl deny this truth here. Also, you can't get a service from another backbone provider for temporary basis. Agreement should atleast for several months to cover the cost of provisioning.rukshankb said:hey i had to go out, lol, don't joke man. people have works. Sandun work is enough to compare with you. if you need more SLT clients, tell it. A lot of SLT customers hope to show correct results. I know what's in your mind, usually 2 PM is very busy time in SLT servers. because most of office, companies are using SLT in sri lanka. we all know that dilalog wimax users are based on homes.
Why don't you participate in Dialogblogs and kalingablogs to show these results. then we will have a great discussion.(no need argue)
Happy to see that you are accepting that SLT has some issues during the peak time ( Office hours) . A number one ISP ( according to you) has issues during the office peak hours.. Sounds strange.. and it is a great Joke. Then why are they selling their connections to Office users like me. Is SLT is only for Torrent users in off peak? What is the solution for us?
Note: When i am accessing Yahoo , the TCP transaction is between my PC and Yahoo server. No other ISP servers are involved unless they use proxies or caching servers. So "SLT servers are busy" is a wrong statement in the technical perspective. SLT and other ISPs provide only routing in the middle. SLT's international links are congested during the peak time. So that reason we get packet loss and latencies.
nmrnehru said:Were you able to check the throughput and latency today during the peak time?
Here i am attaching the yesterday's traceroute ( MTR result) to show that the latency and the packet loss is not due to an "heavy download" during this time
It is clear that in my trace( see the attached snapshot) i don't see any packet drops or delays inside the SLT network ( First 4 hops in the trace).
If my ADSL connection is fully loaded with heavy download, i would have observed loss and latency in the very first hop of SLT / any hops inside SLT.
But, Packet loss and latency occured in the SLT's international path ( in this case Deutsche Telecom - circled in red colour).
If you don't believe me, better ask anyone from SLT ISP whether they have congestion in their international links.
I am very much sure about this. I was keenly exepcting a test results from Rukshan / Sandun today.
http://www.elakiri.com/forum/attachment.php?attachmentid=9020&d=1230907201
For me, this result show how good the SLT network is. Though you are both downloading and testing there is no packet drop. wow, what a performance!!!
kisanka_gr said:http://www.elakiri.com/forum/attachment.php?attachmentid=9020&d=1230907201
For me, this result show how good the SLT network is. Though you are both downloading and testing there is no packet drop. wow, what a performance!!!
Posting again my comments again ... i didn't do any downloads at that time
Here i am attaching the yesterday's traceroute ( MTR result) to show that the latency and the packet loss is not due to an "heavy download" during this time
It is clear that in my trace( see the attached snapshot) i don't see any packet drops or delays inside the SLT network ( First 4 hops in the trace).
If my ADSL connection is fully loaded with heavy download, i would have observed loss and latency in the very first hop of SLT / any hops inside SLT.
But, Packet loss and latency occured in the SLT's international path ( in this case Deutsche Telecom - circled in red colour).
nmrnehru said:
nothing to highlight here bro, I saw that already. how can we be so sure about that if the inside SLT network is performing well.
mama use karanne Dialog BB
weekdays wala witarak torrents slow wenawa bt weekends wala full speed tiyanawa.mama dan nehe ai kiyala.
weekdays wala witarak torrents slow wenawa bt weekends wala full speed tiyanawa.mama dan nehe ai kiyala.
nmrnehru said:
hey no need to accept, it's a common sense(Happy to see that you are accepting that SLT has some issues during the peak time), since i'm not an employee in SLT, I can't get any responsibility for that.
I have this question in mind, what's your best ISP connection in sri lanka? most of sri lankans are happy with SLT ADSL.
so you better to compare with your choice.
So why don't you ppl put some Dialog stats too, so we can compare. Sure I can't coz I'm using SLT BB.
kisanka_gr said:
yes brother. I use my SLT ADSL nearly 2 years, so far we have a quality service. They don't block any high port numbers.
When i ask about dialog connection in a sales promotion (IT exhibition, Queens hotel ), they said "Dialog have blocked high port numbers"
so is it an unlimited one internet connection?
kisanka_gr said:No man I pointed out that they are using the Airtel backbone temporarily because of the cable cut. Feel sorry for you because you haven't got the point here.
Cable cut is not a breaking news for me but this will be a breaking news for you because you weren't aware of why SLT us utilizing a STM 4 from a indian provider
Breaking news!!!!
Happy to say that SEA-ME-WE is restored from last hour.
