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Re: SAT-3 / WASC
On Thursday, May 29, 2003, at 06:29 AM, Lenias Malatji (LA) wrote:
> The information you need is obtainable from the SAT3/WASC/SAFE
> website. The address is www.safe-sat3.co.za There are atleast 3 major
> ISP's in South Africa being SAIX, IS and UUNET using SAT3/WASC/SAFE
> bandwidth. I hope this will help, should you require more info, you
> may contact
> us.
Very interesting. I've been doing some digging with traceroute etc. to
have a look at the SAT-3 usage. To start with, it appears that
www.safe-sat3.co.za itself is using SAT-3 (of course ...).
Here's a breakdown of the end traceroute from Europe, N.A., Australia
to the site. Note that the jump from BT's concert.net delay of 100 ms
to telkom where it's 274 ms delay. Only 175 ms increase - that's not a
satellite hop! The speed of light in fibre is about 200 000 000 m/s and
the SAT-3 is about 15 000 000 m long so that about 75 ms lost just to
the speed of light. I suppose the other 100 ms comes from the repeaters
or something.
Key: (host-name) | (geographic location if known)
| (latency in ms) | (transit provider name)
[... some other part of the world ...]
166-49-218-130.concert.net | ?
| 109 | BT-IGNITE-GLOBAL-BACKBONE
wblv-lir-1-pos-4-0-0.telkom-ipnet.co.za | ?(South Africa)
| 274 | Telkom SA Ltd. IPNET-INT
rndf-ip-er-1-fe-8-1-0.telkom-ipnet.co.za | ?(South Africa)
| 290 | Telkom SA Ltd IPNET-EDGE
intekom-34meg-gw.gt.saix.net | ?
| 281 | SAIX SAIX-SERIAL-S34
zeus.intekom.com | ?Pretoria, South Africa
| 274 | INTEKOM INTEKOM-MIDRAND-5
www.safe-sat3.co.za | ?(South Africa)
| 275 | Telkom SA Ltd. SAIX
It would be interesting to know if any of those hops will always be
present in a SAT-3 transit .. I suspect that
wblv-lir-1-pos-4-0-0.telkom-ipnet.co.za might be a good candidate. I'd
like to know what those abbreviations - wblv, lir, rndf, mean. In any
case, the easiest way to detect a system using SAT-3 transit is the
latency just by using ping.
Some popular websites hosted in South Africa, ping test indicates
SAT-3:
www.southafrica.co.za - ping min 318.1 - AT&T
www.aardvark.co.za - min 273.0 - Telkom
www.telkom.co.za - min 273.2
www.gov.za - doesn't respond to ping. but second last step,
gov001-4.cust-gw.jnb6.alter.net pings min 297.4 ms - UUNET
Probably not on SAT-3:
www.ananzi.co.za - min 571.2 ms - MTN
www.mg.co.za - min 610.5 - UUNET (alter.net)
I hope that other countries on the cable pick it up as quickly as South
Africa.
simon
>
> Kind regards
>
> Lenias Malatji
> Global Capacity Business
> Telkom SA
> Tel: +27 12 426 8602
> Fax: +27 12 426 8778
> e-mail:malatjla at telkom.co.za
> SAT-3/WASC/SAFE Web Address:www.safe-sat3.co.za
>
>
> -----Original Message-----
> From: S Woodside [mailto:sbwoodside at yahoo.com]
> Sent: 29 May 2003 04:01
> To: Badru Ntege
> Cc: afnog at afnog.org; Johan Meyer (JP)
> Subject: Re: SAT-3 / WASC
>
>
> Thanks. I'd like to see a copy of the presentation ... there isn't
one
>
> on the CTO site.
>
> I had thought that the "bandwidth barn" in cape town was using SAT-3
> bandwidth but it turns out it isn't from a traceroute:
>
> % traceroute www.bandwidthbarn.org
> traceroute to www.bandwidthbarn.org (196.7.14.16), 30 hops max, 38
> byte
> packets
> [...]
> 17 if-2-0-5.bb7.NewYork.Teleglobe.net (207.45.220.211) 68.802 ms
> 44.298 ms 43.231 ms
> 18 ix-4-2.bb7.NewYork.teleglobe.net (216.6.117.2) 43.842 ms 43.552
> ms 44.214 ms
> 19 atm5-0-0sub666.ir1.nyc39.alter.net (196.30.229.14) 44.457 ms
> 44.143 ms 44.309 ms
>
> watch the delay suddenly jump from 45 to 600 ms ... that's a
satellite
>
> hop:
>
> 20 tun0.ir1.cpt1.alter.net (196.30.121.214) 610.738 ms 622.845 ms
> 615.733 ms
> 21 srp1-0-0.gw1.cpt1.alter.net (196.31.249.66) 615.738 ms 610.047
> ms
> 619.439 ms
> 22 lit003-2.cust-gw.cpt1.alter.net (196.31.167.106) 617.234 ms
> 630.664 ms 631.386 ms
> 23 196.7.14.131 (196.7.14.131) 641.444 ms 615.073 ms 616.792 ms
> 24 196.7.14.16 (196.7.14.16) 622.571 ms 620.783 ms 620.871 ms
>
> Is anyone using the SAT-3 for internet traffic yet?
>
> simon
>
> On Wednesday, May 28, 2003, at 02:02 AM, Badru Ntege wrote:
>
>> Hi
>>
>> Johan Meyer of Telkom South Africa gave a very good presentation on
>> this at
>> the recent CTO conference in Ghana he might be able either furnish
> you
>> with
>> a copy or even answer your questions. I have copied him on this
>> mailing.
>>
>> -----Original Message-----
>> From: owner-afnog at afnog.org [mailto:owner-afnog at afnog.org]On Behalf
> Of
>> S
>> Woodside
>> Sent: Wednesday, May 28, 2003 3:21 AM
>> To: afnog at afnog.org
>> Subject: SAT-3 / WASC
>>
>>
>> I'm gathering information on this undersea fibre-optic cable. Here
> is
>> what I have so far.
>>
>> Current capacity: 20 Gbps, upgraded max. capacity: 120 Gbps.
> Landings
>> in the following African cities/countries, all coastal: Dakar
>> (Senegal); Abidjan (Ctte-d'Ivoire); Accra (Ghana); Cotonou (Benin);
>> Lagos (Nigeria); Douala (Cameroon); Libreville (Gabon); Luanda
>> (Angola); Melkbosstrand (South Africa).
>>
>> Map and key:
> http://www.safe-sat3.co.za/Configuration/Configuration.asp
>>
>> Who owns the connection in each african country?
>>
>> Sonatel (Senegal)
>> Cote d'Ivoire Telecom
>> Ghana Telecom
>> OPT Benin
>> Nigerian Telecommunications Ltd (NITEL)
>> Camtel (Cameroon)
>> OPT Gabon
>> Angola Telecom
>> Telkom SA Ltd
>>
>> This is from a list I found. But I also found that UUNET SA owns a
>> share, and that there is a company in Nigeria (21st Century
> Technology)
>> that seems to be installing a SAT-3 based service although NITEL
>> "remains the signatory".
>>
>> Using google to find info on SAT-3 is complicated because it's a
> common
>> term for "saturday the 3rd" and also, sometimes spelled SAT3. Also,
>> SAT-3/WASC is South Atlantic Cable 3 / West African Submarine Cable,
>> the agglomeration of multiple cable projects actually. And, it's
>> sometimes referred to as SAT-3/WASC/SAFE, because it connects to
> SAFE,
>> a cable that goes from South Africa over to south asia.
>>
>> If anyone can offer corrections or fill in the gaps, I'd appreciate
> it.
>> These cables are a fat pipe but currently, it seems that the tap is
>> closed.
--
www.simonwoodside.com -- 99% Devil, 1% Angel
=====
www.simonwoodside.com
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