Author_Institution :
Digital Equipment Corp., Maynard, MA, USA
Abstract :
The timed token access method on which the FDDI (fiber distributed data interface) network is based is described. The two kinds of performance parameters, fixed and user-settable, that are used to study performance are discussed. Performance metrics are defined, and the performance is analyzed for asynchronous traffic, using simulation and analytical modeling. Guidelines for setting the target token rotation time (TTRT), which is the key network parameter that can be used to optimize the performance of an FDDI ring network, are presented. The effects on performance of the total number of stations, number of active stations, frame size, and total fiber length are examined.<>
Keywords :
optical links; protocols; standards; telecommunication traffic; token networks; FDDI token ring networks; analytical modeling; asynchronous traffic; fiber distributed data interface; fiber length; frame size; network parameter; performance analysis; performance parameters; protocols; simulation; stations; target token rotation time; timed token access method; ANSI standards; Access protocols; Delay; FDDI; Guidelines; Performance analysis; Standards development; Telecommunication traffic; Time factors; Token networks;
