Savvis has also announced that the Cisco Nexus 5000 and 7000 Series networking switches will serve as the virtualized network backbone for Savvis' new product.
It consists of a network backbone provided by Exodus Communications and D.S.L. connections to Glowpoint customers provided by Covad Communications.
Funded by the National Science Foundation, it was instrumental in upgrading the speed of the academic and scientific network backbone leading up to the commercialized Internet.
Analysts at Keynote Systems, a company in San Mateo, Calif., that monitors the state of the Internet said there had been no discernible impact on any of the providers that make up the network backbone.
Today, only about three million people, mostly on college campuses, have access to the network backbone, known as Abilene, that is the heart of Internet2, compared with an estimated 600 million users of the original Internet.
Telefonica Datacorp of Spain said it had signed a multiyear, multimillion-dollar agreement to provide dial-up access and network backbone services to America Online units in several important European and Latin American markets.
"A failure that widespread indicates a problem with the network backbone," he says.
Those other ISPs include heavyweights such as WorldCom's UUnet, which also supplies ZipLink's network backbone.
Figure 1(B) shows the so-called network backbone (a scaled-down representation [15]).
At the second level, wireless networks are integrated with the fixed network backbone infrastructure, the internet, and PSTN.
Proxies serve the VoD clients by reducing the load on the main server and the network backbone.
