Title :
FDDI: current issues and future plans
Author_Institution :
Digital Equipment Corp., Littleton, MA, USA
Abstract :
Fiber Distributed Data Interface (FDDI), a set of standards developed by the American National Standards Institute (ANSI) X3T9.5 Task Group, is reviewed. The timed token access method, used to share the medium among stations in this 100-Mbit/s local area network (LAN), differs from the traditional token access method in that the time for the token to walk around the ring is accurately measured by each station and used to determine the usability of the token. FDDI-II, which provides support for isochronous service in addition to the asynchronous and synchronous service provided by FDDI, the media-dependent physical layer (PMD) standard called low-cost fiber PMD (LCF-PMD), and the implementation of FDDI on the synchronous optical network (SONET) are discussed.<>
Keywords :
FDDI; SONET; local area networks; telecommunication standards; token networks; 100 Mbit/s; ANSI; American National Standards Institute; FDDI; FDDI-II; Fiber Distributed Data Interface; LAN; LCF-PMD; asynchronous service; isochronous service; local area network; low-cost fiber PMD; media-dependent physical layer; standards; synchronous optical network; synchronous service; timed token access method; ANSI standards; Area measurement; FDDI; Local area networks; Optical fiber LAN; Physical layer; SONET; Standards development; Time measurement; Usability;
Journal_Title :
Communications Magazine, IEEE
