| Summary: | 碩士 === 國立中山大學 === 資訊工程研究所 === 84 === Great efforts are being made to develop flexible and high speed
transmission networks from a diverse range of services
requirements. ATM(Asynchronous Transfer Mode) has been shown to
meet those requirements. In ATM network, VP(Virtual Path) is
used in realizing multiplexing, resource management, and
routing. VC(Virtual Channel) is used for connection from source
application to destination application. Multiple VCs can be in
a common VP if this VP satisfies each VC''s transmission
requirement. An efficient and scalable VP layout method is
proposed.We use weighted networks and group concepts to develop
our method. It is expected that any two end users can
communicate through a small constant number of VPs. But this
may cause too many VP layouts, which is a problem for fixed
routing table size in switches between these two. Thus, we must
have a trade-off !In this paper, a method called P-VPL is
designed to let us layout VPs according to the trade-off
requirement. Because weighted network concepts are used, our VP
layout can reflect real conditions closely. In our simulation
test, under unbalanced node loads, our VP layout method has a
better performance than others because of introduction of
weighted concepts.
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