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bandwydte

Te veel lynopsies?

Thursday, June 7th, 2012

Hoe gelukkig is ons nie om deesdae (natuurlik as die begroting dit toelaat) internet in ons huise te kan hê nie. Anders as 5 jaar gelede kan jy nou `n resep “google” in plaas van die Kook en Geniet gryp. Of in die middel van `n fliek gou die naam van die akteur opsoek wat so bekend lyk, maar wie se naam jy skielik om der dood nie kan onthou nie.

Ongelukkig kom daar met tyd ook meer opsies en in die proses meer verwarring. Asof die keuse van diensverskaffer nie moeilik genoeg is nie, kan jy deesdae ook kies hoe vinnig jou ADSL-lyn moet wees. iAfrica het dit vereenvoudig sodat ons dit ook kan verstaan.

384Kbps

Telkom se goedkoopste, intreevlak-opsie teen R152 per maand.

As jy e-posse wil lees, `n bietjie Facebook en Twitter en dalk af en toe `n snaakse video-insetsel wil kyk, is hierdie een vir jou. Jy sal kan Skype en ander gesels-programme gebruik, maar videokonferensies gaan maar hikkerig wees. As jy lief is vir jou YouTube-videos en musiek wil stroom, sal jy dalk maar geduld moet aanleer. Hierdie lyn gaan maar sukkel om te doen wat jy wil hê. Jy sal ook lank wag om leêrs af te laai wat groter as 1GB is.

Die goeie nuus is egter dat jy nogsteeds speletjies sal kan speel sonder te veel probleme. Die gesukkel gaan slegs inkom as jy opdaterings (“patches”) of ander inhoud vir jou speletjies wil aflaai.

As jy nie vir Telkom wil ondersteun nie, is daar ook die opsie om by  MWEB, Afrihost en ander IDV’s `n onbeperkte rekening te kry vir ongeveer R200.

1Mbps

Telkom se middelslag-aanbod is `n trappie beter, maar ook heelwat duurder teen R289. Die 1Mbps lynspoed is egter nader aan die spoed wat breëband eintlik moet wees – amper drie keer so vinnig as `n 384Kbps lyn.

Die 1Mbps-lyn is perfek vir `n familie met meer as een persoon wat die internet wil gebruik sonder om te veel te sukkel met internetspoed. Dis ook `n goeie opsie as jy baie data wil aflaai en na radiostasies en musiek aanlyn wil luister.  Daar sal steeds `n mate van onderbreking wees, maar `n paar sekondes in vergelyking met `n paar minute op `n  384Kbps lyn.

Selfs met die aflaai van speletjies doen die 1Mbps goed. Speletjies groter as 10GBs gaan dalk net `n tydjie (enigiets van 24-48 ure) neem.

Die onbeperkte 1Mbps opsies se pryse het ook die afgelope tyd geval en jy kan dit nou aanskaf teen R200 vir MWEB, Afrihost, Axxess en ander.

4Mbps

Die tweede duurste opsie gaan jou R413 per maand kos, maar dis ook vier keer vinniger as die 1Mbps-lyn. Hierdie lyn is ook handig vir families, veral die wat `n kombinasie van “WiFi”-toestelle en rekenaars het. Ernstige aflaaiers kan gerus, as die begroting dit toelaat, gaan vir die 4Mbps-opsie aangesien groot leêrs baie vinnig aflaai.

Aanlyn videos en musiek stroom seepglad so jy sal nie op jou tande sit en kners van frustrasie nie. Nog `n voordeel is die kwaliteit van video-oproepe met goeie kwaliteit met  min onderbreking, indien enige. Gebruikers van Xbox Live en Steam sal moeiteloos “patches” en speletjies wat etlike gigabytes is, kan aflaai.

‘n Onbeperkte 4Mbps data rekening sal gebruikers ongeveer R500 per maand kos.

10Mbps

Hierdie vinnigste opsie van almal kos dieselfde as die 4Mbps, omdat Telkom gebruikers gratis opgradeer.

Met 10Mbps kan jy uitsien na hoë-definisie datastroom sonder enige onderbreking. Aflaai is natuurlik ook twee keer so vinnig as met die 4Mbps-lyn en is dus vergelykbaar met die res van die aanlynwêreld. As jy dus `n internet-geaktiveerde TV, Apple TV of enige ander HD toestel het, is hierdie die beste opsie vir hoë-kwaliteit inhoud sonder om te sit en wag vir `n skerm wat laai.

Vir die kwaliteit en spoed van `n onbeperkte 10Mbps rekening vra Afrihost R997 (die laagste prys op die mark tans). Axxess vra R1599, terwyl MWEB R1999 vra.

BRON:  www.iafrica.com

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Meer band vir jou bandwydte

Thursday, March 8th, 2012

Die meeste van ons verstaan nie kop of stert hoe verskaffers se internet en adslfooie werk nie. So hoe weet ons wie vir ons goeie waarde vir ons geld kan gee? Ons het iets opgespoor wat dalk kan help.

(more…)

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Latest on internet connectivity

Friday, February 24th, 2012

(Afrikaans volg binnekort)

Due to the current high load and number of connections the university’s existing firewalls cannot cope as well as usual with the current amount of traffic.

We have already received the new cluster of 10Gig Fortigate firewalls and are in the process of it’s implementation and the expected date of completion will be in two weeks’ time. At the same time IT will also be upgrading the 250 Meg total bandwidth and 145 Meg international bandwidth as soon as the new firewalls are in production.

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Stellenbosch University joins high-speed SANReN network

Wednesday, February 22nd, 2012

(Binnekort beskikbaar in Afrikaans)

On Friday, 3 February 2012, Stellenbosch University’s Information Technology department switched over to the long awaited SANReN connection.   We are now able to provide users with faster internet via higher internet bandwidth.

The South African Research Network (SANReN) is part of a South African government initiative to ensure that South African researchers have access to the best infrastructure for optimal productivity. It will therefore provide its clients with both connectivity to the world’s research networks as well as commodity Internet access.

When Seacom was launched in July 2009 the 1.27 Tbps submarine fibre-optic cable system promised to provide South Africa with an abundance of affordable international bandwidth.  While the effects of lower international bandwidth prices took time to filter down to consumers, ADSL bandwidth rates started plummeting in late 2009 culminating in affordable uncapped ADSL services in March 2010.

One of the biggest benefactors of Seacom’s landing was however not businesses, ISPs or consumers, but rather TENET and the Universities which it serves.

TENET, a non-profit organization which runs a national research and education network of 82 campuses of 44 institutions within SA, signed a deal with Seacom in 2007 which provides them the use of 10Gbps wavelength from Seacom’s Mtunzini landing station, in KwaZulu-Natal to London.

This international bandwidth came at a preferential rate which had a massive impact on the overall availability and use of bandwidth by educational institutions.

The network operated by TENET includes a 10 Gbps circuit to London on the SEACOM cable system, backhaul circuits from the SEACOM landing station in Mtunzini, the SANReN 10 Gbps backbone, SANReN fibre rings in Johannesburg, Pretoria, Cape Town and Durban, the GEN3 MPLS network and Metro-E circuits provided by Neotel, IP Connect bandwidth into the ADSL cloud and various optical fibre and wireless access circuits.

The SANReN network is a high-speed network dedicated to research traffic and research into research networking and broadband infrastructures. It is being rolled out in a phased manner and will connect up to 204 sites across the country with research networks hosting over 3 000 research and education organisations from all over the world in the first two phases, which commenced in 2007.

With the switch to SANReN speeds of up to 10 Gbit/s are guaranteed. More bandwidth at the same cost will therefore be available to Stellenbosch University.  Initially international Internet connectivity will be provided over the SEACOM submarine fibre cable, in a deal unrelated to the original SANReN RFP.

As of September 2008, SANReN has connected three higher educational institutes in Gauteng: the University of the Witwatersrand, the University of Johannesburg, the University of Pretoria, the Tshwane University of Technology and the Council for Scientific and Industrial Research. Stellenbosch University has now been added to this list. With further phases of the project coming on line, most of the public universities in the country will be included.

In real terms, Stellenbosch University is paying less for a better service and more bandwidth.  With the arrival of SEACOM and even more so with the implementation of SANREN, national costs are now extremely low and everyone, not only the University, will be benefiting from latest developments.  Part of the SANREN inisiative is provisioning 1Gig links from Stellenbosch to Business School and the Faculty of Health Sciences.

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