MBONE: Multicasting Tomorrow's Internet
Figure 3-1: Topology of the MBONE.
The size of the MBONE, compared to the Internet as a whole, is relatively small. As of February 1995, the Internet was home to 48,500 subnetworks, so the MBONE was available on roughly 3.5 percent of the Internet.
Pavel Curtis estimates that by 1996 or 1997, multicasting will be broadly supported in routers. When that happens, and upgraded routers are installed in place of unicast routers, the MBONE and the Internet will effectively be one entity. (See Figure 3-2.)
Figure 3-2: Growth of the MBONE.
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