Part 1 Overview of communications networks: introduction; evolution of B-ISDN. Part 2 The basics: FDDI and DQDB; frame relay; advanced frame relay; switched multimegabit data services; ATM; SONET/SDH. Part 3 Broadband architecture: BISDN lower layers; BISDN higher layers; other aspects of BISDN. Part 4 Building blocks of networks. Part 5 ATM broadband environments; ATM in Lans; ATM broadband in WANs; ATM broadband in public networks; ATM in other networks. Part 6 Broadband network design: broadband backbone network design; ATM/broadband around the world; telecommunications standards; ATM equipment vendors; future of broadband communications.