Part 1 Overview1 Introduction2 Network ModelsPart 2 Physical Layer3 Data and Signals4 Digital Transmission5 Analog Transmission6 Bandwidth Utilization: Multiplexing and Spreading7 Transmission Media8 Switching9 Using Telephone and Cable Networks for Data TransmissionPart 3 Data Link Layer10 Error Detection and Correction11 Data Link Control and Protocols12 Point-to-Point Access: PPP13 Wired LANs: Ethernet14 Wireless LANs15 Connecting LANs, Backbone Networks, and Virtual LANs16 Wireless WANs: Cellular Telephone and Satellite Networks17 SONET/SDH18 Virtual-Circuit Networks: Frame Relay and ATMPart 4 Network Layer19 Network Layer: Logical Addressing20 Network Layer: Internet Protocol21 Network Layer: Adress Mapping, Error Reporting, and MulticastingH3>22 Network Layer: Delivery, Forwarding, and ToutingPart 5 Transport Layer23 Process-to-Process Delivery: UDP, TCP, and SCTP24 Congestion Control and Quality of ServicePart 6 Application Layer25 Domain Name System26 Remote Logging, Electronic Mail, and File Transfer27 WWW and HTTP28 Network Management: SNMP29 MultimediaPart 7 Security30 Cryptography31 Network Security32 Security in the Internet: IPSec, SSL/TLS, PGP, VPN, and FirewallsAppendix A UnicodeAppendix B Numbering SystemsAppendix C ThMathematical ReviewAppendix D 8B/6T CodeAppendix E Telephone HistoryAppendix F Contact AddressesAppendix G RFCsAppendix H UDP and TCP Ports