Japan??™s largest wireless service provider, KDDI, offers Triple Play and IP TV services
to millions of residential customers nationwide over an RPR network. The
service includes DVD-grade Video-on-demand, Voice services, Broadband Internet
Access, and even KOD (karaoke-on-demand). Moreover, they also offer enhanced-
Ethernet services to business customers and backhaul wireless services over the same
infrastructure.
Governments and Carrier Networks in the U.S. Besides being deployed in Japan and
China there are many other examples of new IEEE 8021.17 networks being built.
Cities and Governments are building private RPR networks for efficient communications
among their own buildings and employees.
A number of cities in the U. S. have implemented RPR for their internal networks.
The city of Austin, Texas, with a population of 700,000, is implementing resilient packet
372 Chapter 12
ring technology for use by its Public Service and Public Communications Departments.
The city??™s telecommunications network is a 350-mile ring architecture that includes all
police, emergency medical and fire stations, libraries and administrative offices around
the city.
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