Abstract: We propose to model the multi-granular optical network using a novel Multi-Granularity Graph Model (MGGM) in order to keep track of the network evolution and state and simplify the updating when setting up or tearing down a connection. This is done by means of objects (groups) defining the belonging, the state and the significance of an edge representing any resource in the network. This graph model is adapted to multi-granular networks with multi-layer or single- layer node structure but can also cover any grooming problem. By using what we call Basic Network Element or simply BNE we can interconnect different granularities and model the multiplexing, de-multiplexing, switching, wavelength conversion, etc… We can weight the edges in the MGGM to apply graph optimization algorithms. MGGM is also used to construct and update the layered logical topology, building information base to apply traffic-engineering solutions.
Publication Year: 2006
Publication Date: 2006-10-04
Language: en
Type: preprint
Indexed In: ['crossref']
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