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Priority shaping of traffic streams sharing a policed virtual path in an ATM network
Author(s) -
Reiss Leszek K.,
Merakos Lazaros F.
Publication year - 1993
Publication title -
international journal of digital and analog communication systems
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.344
H-Index - 49
eISSN - 1099-1131
pISSN - 1047-9627
DOI - 10.1002/dac.4510060206
Subject(s) - computer science , computer network , path (computing) , asynchronous transfer mode , traffic shaping , bandwidth (computing) , real time computing , distributed computing , network traffic control , network packet
Traffic streams with differing service requirements, sharing a single contract for use of a policed virtual path in an ATM network, may be jointly shaped to make the best use of bandwidth available in the path. The shaper may use the information about the network policer to perform self‐policing with a form of priority service to ensure satisfactory levels of cell loss and delay for both real‐time and non‐real‐time traffic. Two such shapers are considered assuming a mean bit‐rate contract with the network in which a leaky‐bucket mechanism performs the policing function. The performance of the shapers is analysed using Markov‐modulated models of bursty traffic sources and stochastic fluid methods, and the analytical results are corroborated by simulations. The choice of the shaper type and optimization of the shaper design parameters are discussed using correlated and non‐correlated source models.