ABSTRACT
High-speed access is becoming increasingly popular for
connecting to the Internet and to corporate networks. The
term “high-speed” is generally taken tomean transfer speeds
above the 56 kbps of analog modems, or the 64 to 128 kbps
speeds of Integrated Service Digital Network (ISDN). There
are a number of technologies that provide transfer rates from
256 kbps to 1.544 Mbps and beyond. Some offer asymme-
trical uplink and downlink speeds that may go as high as
6 Mbps. These high-speed access methods include DSL,
cable modems, and wireless point-to-multipoint access.