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Virtual
Path Management in ATM Networks.
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[Abstract]
[Download Postscript file] |
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Y. D. Lin, W. J. Su, C. C. Lo
Proceedings
of International Conference on
Communications, June 1996. |
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In
ATM networks, VPCs (Virtual Path Connections) could be
setup permanently or semi-permanently by network administrators to form a virtual private
network or temporarily by applications to group several VCCs (Virtual Channel Connections)
of users. Virtual path management is of great importance in maintaining ATM network
service quality. In this paper, we propose our heuristics for three problems of virtual
path management: (1)Virtual Path Bandwidth Resizing Algorithm, which conducts
utilization-driven virtual path bandwidth adjustment, (2)Virtual Path Rerouting Algorithm,
which is based on a dynamic prioritized route search with path overwriting feature, and
(3)Virtual Channel Connection Routing Algorithm, which takes into account the usage of
both residual bandwidth and residual VCI (Virtual Channel Identifier) in VPCs. We develop
simulation programs to examine the performance and effectiveness of the proposed
heuristics. |
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