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affordable bandwidth on both local and international scales - that is, the digital divide is holding
us back. A large investment is required to improve this situation! Progress has been frustratingly
slow, but encouraging signs are beginning to emerge, and the government is aware that
intervention is needed. A high-speed academic internet backbone is an urgent priority. Put
simply: without high-speed links, MeerKAT and the SKA bid are non-starters. In the short term,
SALT (as will probably also be the case for KAT) is using the Virtual Observatory method
described above. Users and other interested astronomers (locally and overseas) access only final
data-products (for example, the processed images) and not the (much more voluminous) raw data.
This approach can be extended to other astronomical observatories, both ground and space-based,
if the data archives are copied and moved to a central South African site (a `mirror'), from which
the data can be accessed. The broad support that exists for the recently passed AGA Bill and KAT
(as well as other developments) is being used as a lever to change the face of research networks.
Furthermore, our international partners (in SALT and MeerKAT) are providing external support,
since South Africa has so clearly shown that it wants to participate in science on the global stage -
as a `real' partner, and not just as a third-world provider of first-class research locations. In time,
the cost and speed of commercial bandwidth in South Africa will both improve - driven (it is to
be hoped) by increased telecoms competition but when?
Developments in eastern and southern Africa:
Optical fibre (for data transmission) is being deployed throughout Africa at an accelerating rate,
as a result of developments by national and cellphone operators, electrical power expansion, and
various international consortia.As is the case in Europe, national research and education networks
(NRENs) are emerging in African countries to provide the academic backbone to link their major
institutions by procuring Internet bandwidth In South Africa, to begin this process SANREN is
being funded by the Department of Science and Technology through the Meraka Institute, as well
as TENET (Tertiary Education Network), the broadband system that serves South Africa's higher
education and research institutions. Together with six other African NRENs, they have formed
UbuntuNet, aiming eventually to become the `Geant' of Africa - inspired by the European Geant2
network, which currently provides a staggering 10-gigabits per second academic backbone
throughout Europe and is at least 1 000 times faster than that currently available within South
African academia! Providing the linkage between southern Africa and the rest of the world means
developing intercontinental connectivity. Many groups of professional people in all walks of life
recognize the urgency of providing affordable, international bandwidth. But achieving it requires
political intervention on a heroic scale.
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