derstanding of how IP addressing works: IP address classes, dynamic and static addresses, public and private addresses, Network Address Translation to connect multiple computers to one Internet connection, and IP version 6. 16.1 IP Version 4 16.1.1 Dotted-Decimal Notation 16.1.2 Address Classes 16.2Dynamic IP Addresses 16.3Static Addresses 16.4Private IP Addresses 16.5Network Address Translation 16.6IP Version 6 (IPv6) 16.6.1 IPv6 Notation and Address Classes 17 PRIVATE NETWORKS USING ROUTERS AND DEDICATED LINES The best way to understand routers and networks is with private networks, composed of routers connected with dedicated lines like T1s. We'll understand the functions routers perform, edge routers and packet filtering, and practical guidelines on how to order circuits and deal with carriers. 17.1 Chapter Roadmap 17.2 Traffic Aggregation via Channelized TDM PAGE 12 TELECOM 101 REFERENCE BOOK TERACOM TRAINING INSTITUTE 17.3Statistical TDM Concepts 17.3.1 Overbooking 17.3.2 Addressing 17.4T1 WAN: Integrated Data, Voice, Video 17.5Edge Routers 17.5.1 Routing VS. Bridging 17.5.2 Packet Filtering 17.6Private Wide-Area Packet Network 17.7Dealing with Carriers 7.8Troubleshooting 17.8.1 Fault Sectionalization 17.8.2 Bit Error Rate Testing (BERT) 17.8.3 In-Service Monitoring 17.8.4 Monitoring Higher Layers 18 BANDWIDTH ON DEMAND Bandwidth on demand or "packet-switched" services have strong cost and flexibility advantages over dedicated lines. We'll understand packet network concepts, how and why Virtual Circuits are implemented, and what the jargon and buzzwords really mean. You will understand the widely-used TCP/IP over Frame Relay and performance issues which leads into understanding the need for Quality of Service (QoS) guarantees, ATM and MPLS. 18.1 Bandwidth on Demand Service Concepts 18.1.1 Advantages 18.1.2 Disadvantages 18.2Virtual Circuits 18.2.1 Switched Virtual Circuits (SVCs) 18.2.2 Permanent Virtual Circuits (PVCs) 18.2.3 Connection-Oriented Network Services 18.2.4 Connectionless Network Services 18.2.