3. Designing a Triple-Play Backbone

A triple-play network provides voice, video, and data services to customers. From the humble beginnings of simple Internet access, the next generation of broadband networks is delivering voice, rich video content, and speedier Internet services to households over IP networks. Having a reliable, high-capacity core with all the right protocols is an important prerequisite for delivering these services to customers. Most provider backbones have, in the past, been built with unicast services in mind—Internet and VoIP services being the most common ones. When a provider wants to offer IPTV services, this means an enhancement of the backbone is needed to support multicast data and protocols.

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