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Multi-Ring ERP Network Design: A Traffic Engineering Approach
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DOI：10.1109/LCOMM.2012.111612.121860.png)
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Abstract
En 中文
The recent Ethernet Ring Protection (ERP) method brings new challenges into the design of next generation Ethernet carrier networks. This letter addresses one of the design challenges that may confront a network operator in its migration to provide ERP capabilities over an existing network. The objective of the design is to properly allocate network resources to maximize the service provider's revenue given the per-link deployed capacity. We formulate this problem of resource allocation as an optimization model with the objective of maximizing the network flow using the well-known max-min approach. Our proposed model ensures fairness among the admissible flows and the design of a proper protection plan to survive against any single link failure. Numerical results show that the proposed design approach can increase the overall network flow by up to 44.7% in comparison to an arbitrarily designed ERP network while it allocates bandwidth 29.3% more fairly among the sessions.
Keywords:
Ethernet transport networks
ERP
network design
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