Seacom: Single Point of Failure
Neither Telkom nor KDN have their fiber connections to Mombasa in Ring formation but rather are bus, this means that should either cable break for any reason, the entire Nairobi, Uganda, Rwanda and Burundi stand disconnected, so much for "The Promise". This is rather puzzling and implies that should you require a redundant link to SEACOM/TEAMS you need to purchase capacity from both TKL and KDN. The same applies to the NOFBI (National Optic Fiber Backbone Initiative) which runs "countrywide". (sic) I find this design rather strange if not outright curious, does anyone know why? It's tough enough that we have to deal with Power Crisis which have similar repercussions but technical design??? inexcusable. Kiania D. -- [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
David, I think KDN is building a second fiber cable run along that route. Likely the problem is that most PDNOs who have licenses have been focussing on metro wireless networks. An example is AK, who waited until the last minute to lay its own cable network. ( I think Nairobi only ). So KDN get the innovator and development congrats on this. The others are nowhere to be seen except Wimax this and that.. hehehe :-)
On Wed, Jul 22, 2009 at 11:11 AM, aki <aki275@googlemail.com> wrote:
David, I think KDN is building a second fiber cable run along that route. Likely the problem is that most PDNOs who have licenses have been focusing on metro wireless networks. An example is AK, who waited until the last minute to lay its own cable network. ( I think Nairobi only ). So KDN get the innovator and development congrats on this. The others are nowhere to be seen except WiMax this and that.. hehehe :-)
Aki, would you know if the second KDN fiber is going to be in the same duct route, if so i do not see any protection from a physical fault/cable break. I would suggest the use a different physical path e.g. along the railway line, kplc overhead route. Just my 2 cents. R D
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Hi Dennis, I'd not know what route KDN second fiber is taking, think it was being handled by Alcatel ( corrections pls ). Also, is wananchi getting LION? Rgds.
Wananchi already has bought lion? On Wed, Jul 22, 2009 at 4:33 PM, aki <aki275@googlemail.com> wrote:
Hi Dennis, I'd not know what route KDN second fiber is taking, think it was being handled by Alcatel ( corrections pls ).
Also, is wananchi getting LION?
Rgds.
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Hello, This was the proposal made to the Govt, atleast I know they are considering this, we already have fibre to Lamu (on going), Garissa comes from Nairobi via Thinka if you connect these two you have redunderncy remember they lay lots of fibre 34 core sometimes but they only use a couple, so capacity is there, when the two are connected then you have a ring Nai > MSA > Lamu > Garissa. The otherone is headed to nyeri > Nanyuki > Isolo > Meru > Embu back to thika ... Ring. Kisii connect via Narok and Kitale and Kisumu blah blah thats how they are looking into it atleaset in the books ... Implementation? well thats upto the Political class to decide .. KDN might be considering this, I know from some high sources, that they are considering connecting Kenya to West africa via DRC now they are in rwand 2009/7/22 Denis G. Wahome <dwahome@gmail.com>
On Wed, Jul 22, 2009 at 11:11 AM, aki <aki275@googlemail.com> wrote:
David, I think KDN is building a second fiber cable run along that route. Likely the problem is that most PDNOs who have licenses have been focusing on metro wireless networks. An example is AK, who waited until the last minute to lay its own cable network. ( I think Nairobi only ). So KDN get the innovator and development congrats on this. The others are nowhere to be seen except WiMax this and that.. hehehe :-)
Aki, would you know if the second KDN fiber is going to be in the same duct route, if so i do not see any protection from a physical fault/cable break. I would suggest the use a different physical path e.g. along the railway line, kplc overhead route.
Just my 2 cents.
R
D
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Denis G. Wahome wrote:
Aki, would you know if the second KDN fiber is going to be in the same duct route, if so i do not see any protection from a physical fault/cable break. I would suggest the use a different physical path e.g. along the railway line, kplc overhead route.
Strand Swapping is what folks should be doing. Note sure if anyone has looked at it from a point of view that they are would be able to provide better redundancy to their customers. But then again ... why should they? Regards, Mich.
The entry point is still one.Yes they should have a ring in country but it would mean they would have to run 2 cables in parallel. If you look at the regions that are urban it would make sense to have fibre connections only there and they seem to be in a straight line . mombasa- machakos - nairobi -nakuru- kisumu then out to UG. Having metros would mean Nairobi having its metro but what feeds nairobi.What if something happens to the fibre before it gets to Nairobi. May be its their future plan but if kenya plans to be a hub there has to be a ring.
My view. Here is the core problem and that's why the likes of KDN is different from others. ( I ain't favouring them, just facts speak ). A list of providers, but has any build long distance fiber networks. Some I've never heard of while others most likely simple layout : Drop a few base stations on open bands in metros and connect clients aka wireless extended. http://www.cck.go.ke/licensed_operators_and_service_providers/ Here's even something better. Local loop operators. ( which loops are being offered ? ) http://www.cck.go.ke/licensed_operators_and_service_providers/ Here's something to ponder. Ever wondered how for example motorola canopy is being used to deliver services in building and estate scenarios? You maybe in for a shock, from a network perspective. Broadband is " a shared LAN ". :-)
I have some rumors that NOFBI (National Optic Fiber Backbone Initiative) will build another fibre connecting Mombasa > lamu > garisa > Wajir > Lokichogio > Busia some how we will have Rings all over but its just rumors anyway .. ;-) 2009/7/22 aki <aki275@googlemail.com>
My view. Here is the core problem and that's why the likes of KDN is different from others. ( I ain't favouring them, just facts speak ).
A list of providers, but has any build long distance fiber networks. Some I've never heard of while others most likely simple layout : Drop a few base stations on open bands in metros and connect clients aka wireless extended.
http://www.cck.go.ke/licensed_operators_and_service_providers/
Here's even something better. Local loop operators. ( which loops are being offered ? )
http://www.cck.go.ke/licensed_operators_and_service_providers/
Here's something to ponder. Ever wondered how for example motorola canopy is being used to deliver services in building and estate scenarios? You maybe in for a shock, from a network perspective. Broadband is " a shared LAN ". :-)
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Rings just don't happen they are implemented in the design, my concern it bragging rights have precedence over actual implementation and design (Sounds like a certain Redmond company). My main concern though is that we could have all the undersea cable in the world but have the same uptime issues. My advise, don't discard those VSAT dishes just yet. I have been to Lamu on several occasions by road, there's straight (bus) fiber and no plans for ring to the best of my knowledge. Again the main artery of communication is Nairobi - Mombasa, shouldn't this be a priority to install protection? What damage in downtime would there possibly be between Nairobi and Wajir?? Kiania On Wed, Jul 22, 2009 at 1:32 PM, Watson Kambo <wkwats@gmail.com> wrote:
I have some rumors that NOFBI (National Optic Fiber Backbone Initiative) will build another fibre connecting Mombasa > lamu > garisa > Wajir > Lokichogio > Busia some how we will have Rings all over but its just rumors anyway .. ;-)
2009/7/22 aki <aki275@googlemail.com>
My view. Here is the core problem and that's why the likes of KDN is different from others. ( I ain't favouring them, just facts speak ).
A list of providers, but has any build long distance fiber networks. Some I've never heard of while others most likely simple layout : Drop a few base stations on open bands in metros and connect clients aka wireless extended.
http://www.cck.go.ke/licensed_operators_and_service_providers/
Here's even something better. Local loop operators. ( which loops are being offered ? )
http://www.cck.go.ke/licensed_operators_and_service_providers/
Here's something to ponder. Ever wondered how for example motorola canopy is being used to deliver services in building and estate scenarios? You maybe in for a shock, from a network perspective. Broadband is " a shared LAN ". :-)
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-- [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
just wondering if Seacom have also laid rings? undersea cables have been known to breakdown too.
I thought KDN were running a fiber from nairobi->garissa->mombasa 2009/7/22 aki <aki275@googlemail.com>
just wondering if Seacom have also laid rings? undersea cables have been known to breakdown too.
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http://www.seacom.mu/network/overview.html Yes it is fully protected, hopefully this is what they implemented. Kiania On Wed, Jul 22, 2009 at 2:57 PM, aki <aki275@googlemail.com> wrote:
just wondering if Seacom have also laid rings? undersea cables have been known to breakdown too.
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-- [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
Dave Thanks for raising this. Its not only failure but also filtering of the web MO On Wed, Jul 22, 2009 at 8:57 AM, David Kiania | Asentric Consulting Ltd < kianiadee@gmail.com> wrote:
Neither Telkom nor KDN have their fiber connections to Mombasa in Ring formation but rather are bus, this means that should either cable break for any reason, the entire Nairobi, Uganda, Rwanda and Burundi stand disconnected, so much for "The Promise". This is rather puzzling and implies that should you require a redundant link to SEACOM/TEAMS you need to purchase capacity from both TKL and KDN. The same applies to the NOFBI (National Optic Fiber Backbone Initiative) which runs "countrywide". (sic)
I find this design rather strange if not outright curious, does anyone know why? It's tough enough that we have to deal with Power Crisis which have similar repercussions but technical design??? inexcusable.
Kiania D. --
[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
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participants (9)
-
aki -
David Kiania | Asentric Consulting Ltd -
Denis G. Wahome -
Dennis Kioko -
ibtisam jamal -
Joseph McDonald -
Michuki Mwangi -
mike oketch -
Watson Kambo