Seacom. Could it have been just been...??
ok, this is just a gut feeling.. "SEACOM has completed and commissioned its 1,28 terabits per second (Tb/s), 17, 000 kilometres" yet at launch "Attendees at all launch events experienced the high-speed capabalities took place through a one-gigabit-per-second live international connection at all locations." http://www.seacom.socialmediarelease.co.za/ see also: http://whiteafrican.com/2009/07/23/reactions-to-seacom-going-live-today/ Questions: 1) Why was it that only 1 GB/s at all launch location if they had 1.28 Tb/s capacity? 2) Could they have just purchased some temporary 1 GB/s from satellites, pumped it to completed segments for the launch? 3) Were we taken for a ride thus you guys that stayed up all night pinging... pinging.. and pinging... you were fell for it? oh no, I hope I am wrong... Alex
Alex, Very simple, 1.28 TB is the maximum capacity which is not required at the moment. Using a technology called DWDM (Dense Wavelength Division Multiplexing) " *Definition:* In digital signal processing, *DWDM* is a technique for increasing the bandwidth<http://compnetworking.about.com/library/glossary/bldef-bandwidth.htm> of optical network communications. DWDM allows dozens of different data signals to be transmitted simultaneously over a single fiber. To keep the signals distinct, DWDM manipulates *wavelengths* of light to keep each signal within its own narrow band. DWDM is a more cost-effective alternative to *Time Division Multiplexing (TDM)*. Electrical engineers often use a motorway analogy to explain the difference between the two. TDM relates to traffic flow on one lane of the motorway. To increase the throughput of autos, one can increase their speed, that is equivalent to time multiplexing. DWDM, on the other hand, relates to the number of lanes on the motorway. Another way to increase auto throughput is to add more travel lanes, that is equivalent to wavelength multiplexing." There's therefore no need to light up the entire capacity, if there's not capacity or demand, they'll light up in incremental dozes to match demand. Hope you find this helpful. Kiania D. On Sat, Jul 25, 2009 at 8:34 PM, Gakuru Alex <alexgakuru.lists@gmail.com>wrote:
ok, this is just a gut feeling..
"SEACOM has completed and commissioned its 1,28 terabits per second (Tb/s), 17, 000 kilometres"
yet at launch "Attendees at all launch events experienced the high-speed capabalities took place through a one-gigabit-per-second live international connection at all locations."
http://www.seacom.socialmediarelease.co.za/
see also: http://whiteafrican.com/2009/07/23/reactions-to-seacom-going-live-today/
Questions: 1) Why was it that only 1 GB/s at all launch location if they had 1.28 Tb/s capacity? 2) Could they have just purchased some temporary 1 GB/s from satellites, pumped it to completed segments for the launch? 3) Were we taken for a ride thus you guys that stayed up all night pinging... pinging.. and pinging... you were fell for it?
oh no, I hope I am wrong...
Alex _______________________________________________ Skunkworks mailing list Skunkworks@lists.my.co.ke http://lists.my.co.ke/cgi-bin/mailman/listinfo/skunkworks Other services @ http://my.co.ke Other lists ------------- Announce: http://lists.my.co.ke/cgi-bin/mailman/listinfo/skunkworks-announce Science: http://lists.my.co.ke/cgi-bin/mailman/listinfo/science kazi: http://lists.my.co.ke/cgi-bin/mailman/admin/kazi/general
-- [Asentric Consulting Ltd] If a man has in himself the soul of a slave will he not become one no matter what his birth .... -Richest Man in Babylon
During the launch - was the 1Gbps even 50% utilized? Tito 2009/7/25 Gakuru Alex <alexgakuru.lists@gmail.com>
ok, this is just a gut feeling..
"SEACOM has completed and commissioned its 1,28 terabits per second (Tb/s), 17, 000 kilometres"
yet at launch "Attendees at all launch events experienced the high-speed capabalities took place through a one-gigabit-per-second live international connection at all locations."
http://www.seacom.socialmediarelease.co.za/
see also: http://whiteafrican.com/2009/07/23/reactions-to-seacom-going-live-today/
Questions: 1) Why was it that only 1 GB/s at all launch location if they had 1.28 Tb/s capacity? 2) Could they have just purchased some temporary 1 GB/s from satellites, pumped it to completed segments for the launch? 3) Were we taken for a ride thus you guys that stayed up all night pinging... pinging.. and pinging... you were fell for it?
oh no, I hope I am wrong...
Alex _______________________________________________ Skunkworks mailing list Skunkworks@lists.my.co.ke http://lists.my.co.ke/cgi-bin/mailman/listinfo/skunkworks Other services @ http://my.co.ke Other lists ------------- Announce: http://lists.my.co.ke/cgi-bin/mailman/listinfo/skunkworks-announce Science: http://lists.my.co.ke/cgi-bin/mailman/listinfo/science kazi: http://lists.my.co.ke/cgi-bin/mailman/admin/kazi/general
On Sat, Jul 25, 2009 at 10:22 PM, Njoroge Tito<titonjoroge@gmail.com> wrote:
During the launch - was the 1Gbps even 50% utilized?
Tito
Obviously high-level government representatives and dignitaries video-conferencing launch functions did not even require 100 MB/s. And anyway, video conferencing has long been going on via satellite. "live 1Gbit/s international connections between South Africa, Tanzania, Kenya, Uganda and Mozambique using a high-definition video feed to interconnect representatives and dignitaries across the five countries" A TRUE LAUNCH would have been them releasing the raw broadband power for the region to experience Terra broadband power -if they have it that is.. or were they afraid/concerned it would have been 'too much terror' for us poor us consumers used to narrow bands for which we pay an arm and leg for? "The 17,000km 1.28TB/s submarine cable spans the entire length of the east coast of Africa, with backhaul connections to coastal landing stations providing links to Johannesburg, Nairobi and Kampala. Kigali and Addis Ababa will be added shortly..." Question?: How did they launch in Tanzania? <http://www.crn.com.au/News/151136,east-africa-undersea-cable-goes-live.aspx> Question? Does the completed "1.2 TB/s" Eastern Africa to South Africa segment meet/connect to equal onward capacity cable from South Africa to Europe? Or 1.2 TB/s is 'technical capacity' that will have to wait until after other cables are completed? "SAT-3 has a capacity of 120 Gbit/s while SAFE has a capacity of 130 Gbit/s; however, plans are in place to triple SAT-3's capacity to 340 Gbit/s in the near future thanks to technological advancements allowing 2.5Gb/s wavelengths to be replaced with 10Gb/s wavelengths" <http://en.wikipedia.org/wiki/SAT-3/WASC_(cable_system)>
Hi Alex, comments below, a bit lengthy so do apologise to list :-) On Sat, Jul 25, 2009 at 8:34 PM, Gakuru Alex <alexgakuru.lists@gmail.com>wrote:
This site was with Seacom Live was up on friday after launch, I saw it after Mworia posted the twitter link. I went a bit further than and managed to get a basic diagram of Seacom, which made a lot of things clear. For example , total capacity to each landing station eg Mombasa, Dar is STM4 ( 600Mbp/s ) while each landing station has an interconnection say between Mombasa to Dar is STM1 ( 155Mbps ). Now that I've researched Teams and effects a bit more, I think Teams will use Seacom interconnections across to Dar and other landing stations via Mombasa. Actually what I found completely surprising about Seacom Launch , besides that 99% of telco industry had other plans up their sleeve, was a complete lack of celebration from industry professionals. Even blog sites, who probably understand very little about networks had something positive to say. Teams, Seacom and other cable operators bring change to kenya and each is funded differently and different business plans but the goals are the same, though pricing maybe different . Anyway, as Michuki put it, at skunkslist we are at a different level so will let it be. To put it into perspective, as of today morning we have 2 networks in kenya. Real BroadBand and Fake Broadband( corrupted packets, http acceleration and compression, delayed caching, bandwidth prioritization rules etc ). Safaricom 3G and KDN have become pioneers and now offer Real BroadBand. FYI : I'm not on Safcom 3g for personal reasons. I went to village market today to print some pics, and met the safaricom staff with the benz promo. I hope they will pass the message to MJ and Team. Its time those who have the terminations moved into high gear with serious business campaigns to bring awareness to kenyans. The market , for the time being, belongs to them. This is what makes pioneers who have a vision, who against odds had faith and commitment to follow through. But don't hold the above against Aki incase I've touched anyone's nerves as it is my very shallow opinion. If the case so, my apology in advance. Over and Out. :-).
On 7/25/09, aki <aki275@googlemail.com> wrote:
Actually what I found completely surprising about Seacom Launch , besides that 99% of telco industry had other plans up their sleeve, was a complete lack of celebration from industry professionals.
Or perhaps it emerged it was a KDN terrestrial fibre test/launch?
To put it into perspective, as of today morning we have 2 networks in kenya. Real BroadBand and Fake Broadband( corrupted packets, http acceleration and compression, delayed caching, bandwidth prioritization rules etc ). Safaricom 3G and KDN have become pioneers and now offer Real BroadBand.
ditto!
Alex, my silly long lasting impressions of the event : And to prove this, I'll be watching TKL and others. Until 24th July, I was not aware of the background activities. I'm now self assured by the above impressions that TKL as national operator to public networks and others will NOT be bringing undersea connectivity to kenyans until late september. There were 2 camps in telco industry in kenya ( new to me ). " Supposedly Expensive Private entity " and " Supposedly Cheaper Public entity". Lets hope for the best and may all our assumptions and impressions be proved wrong and the winner will be end user kenyans. I'll give this topic a rest..... :-) On Sun, Jul 26, 2009 at 12:27 AM, Gakuru Alex <alexgakuru.lists@gmail.com>wrote:
On 7/25/09, aki <aki275@googlemail.com> wrote:
Actually what I found completely surprising about Seacom Launch , besides that 99% of telco industry had other plans up their sleeve, was a
complete
lack of celebration from industry professionals.
Or perhaps it emerged it was a KDN terrestrial fibre test/launch?
aki, I declare your 'initiation ceremony' successful. Welcome to bruising our local 'private sector' telecommunications competition battleground.(But honestly dunno whether to congratulate or send you my sympathies:) For the record: I support if possible 100 fibre cables connecting Kenya irrespective of who owns or operates them. I cannot wait for O3B's 12- GB/s satellite connectivity due next year as well. -Coverage all of Africa and other developing nations -Promises to offer up to 12 Giga Bytes per second, -To provide 'backhaul' to GSM, ISP others licenced Recall your message of Mon, Dec 1, 2008 at 4:46 PM and watch Interview with O3b Networks Founder and CEO Greg Wyler at <http://www.o3bnetworks.com/video_greg.flv (40 MB) A bit of history... (3 months ago or thereabouts) Did you know that operators resolved to only token-marginally reduce internet consumers prices after cable(s) connections arguing that "because Kenyans are used to very high prices"? Only multiple cables will force service providers competition leading to low prices. You can give it a rest but I cannot. It's my job to smell anti-consumer rats and whatever furs they leave along their trails. Frankly it's a communication Rights war and rosy futuristic pictures of super fast connectivity costing a limb or two won't fly no more. Cheers, Alex On Sun, Jul 26, 2009 at 8:15 AM, aki<aki275@googlemail.com> wrote:
Alex, my silly long lasting impressions of the event : And to prove this, I'll be watching TKL and others. Until 24th July, I was not aware of the background activities. I'm now self assured by the above impressions that TKL as national operator to public networks and others will NOT be bringing undersea connectivity to kenyans until late september. There were 2 camps in telco industry in kenya ( new to me ). " Supposedly Expensive Private entity " and " Supposedly Cheaper Public entity". Lets hope for the best and may all our assumptions and impressions be proved wrong and the winner will be end user kenyans. I'll give this topic a rest..... :-)
On Sun, Jul 26, 2009 at 12:27 AM, Gakuru Alex <alexgakuru.lists@gmail.com> wrote:
On 7/25/09, aki <aki275@googlemail.com> wrote:
Actually what I found completely surprising about Seacom Launch , besides that 99% of telco industry had other plans up their sleeve, was a complete lack of celebration from industry professionals.
Or perhaps it emerged it was a KDN terrestrial fibre test/launch?
_______________________________________________ Skunkworks mailing list Skunkworks@lists.my.co.ke http://lists.my.co.ke/cgi-bin/mailman/listinfo/skunkworks Other services @ http://my.co.ke Other lists ------------- Announce: http://lists.my.co.ke/cgi-bin/mailman/listinfo/skunkworks-announce Science: http://lists.my.co.ke/cgi-bin/mailman/listinfo/science kazi: http://lists.my.co.ke/cgi-bin/mailman/admin/kazi/general
Alex, many thnks though I did not mean lack enthusiam from members on this list... Again, I apologize if it seemed it. A big poolay from me. ( those who are crazy about football, rugby and the rest can understand me..... ) :-) I think onto more positive things. I'm posting a final thread on KDN, Safaricom and Seacom. ( then onto list semi-retirement ). On Sun, Jul 26, 2009 at 9:06 AM, Gakuru Alex <alexgakuru.lists@gmail.com>wrote:
aki,
I declare your 'initiation ceremony' successful. Welcome to bruising our local 'private sector' telecommunications competition battleground.(But honestly dunno whether to congratulate or send you my sympathies:)
participants (4)
-
aki -
David Kiania | Asentric Consulting Ltd -
Gakuru Alex -
Njoroge Tito