mments Earliest PON A faster Efficient for IP Symmetric suited standard version of traffic for commercial customers *Optical carrier Carrier Networks Table 4-3 DOCSIS Standards Standard Capabilities DOCSIS 1.0 Two-way service for Internet access. Upstream speed of 5Mbps. Uniform specifications SO that cable modems can be purchased from retail outlets that are compatible with cable operators' infrastructure. DOCSIS 1.1 Increases the upstream speed to 10Mbps. Improves security and privacy. QoS enables operators to provide differentiated quality for VoIP and interactive services such as realtime multiplayer games. Tier-based services such as higher speeds to heavy users who use more bandwidth or purchase additional data service. DOCSIS 2.0 Increases upstream speed to 30Mbps per second. Symmetric services such as those for business customers. Peer-to-peer such as VPN with site-to-site connectivity (see Chapter 5 for further information on VPN service). DOCSIS 3.0 Supports higher speeds of 173Mbps to 343Mbps downstream to homes, 123Mbps upstream to the cable operator, and bonding. DOCSIS 3.0 includes support for IPTV. Broadband and Wide Area Network Services In this chapter: Introduction A Definition of Broadband VolP Calling Services over Broadband Multi-Protocol Label Switching for Interoffice Connections Internet Protocol Virtual Private Networks over the Internet Securing Transmissions Sent via the Internet Managed Services Using Digital Subscriber Line for Internet Access High-Speed Access via Carrier Gigabit Ethernet T1 and T3: The First Broadband Services for Businesses Private Lines, Network Topology, and Frame Relay Appendix Broadband and Wide Area Network Services INTRODUCTION roadband services link residential and commercial sites to the Internet and to other high-speed networks. Individual buildings are linked by Wide Area Networks (WANs), whether they are within the same city or located far away. Both broadband and WAN circuits are able to carry a mix of data, voice, and video interleaved with one another