Research Article
Networks for high-bandwidth services combining photonic circuit cross-connects with packet switches
@INPROCEEDINGS{10.1109/BROADNETS.2008.4769088, author={Georg Post and Jean-Michel Houssin and L. Noirie and Pierre Peloso}, title={Networks for high-bandwidth services combining photonic circuit cross-connects with packet switches}, proceedings={5th International ICST Conference on Broadband Communications, Networks, and Systems}, publisher={IEEE}, proceedings_a={BROADNETS}, year={2010}, month={5}, keywords={multi-layer network photonic cross-connect carrier Ethernet switch}, doi={10.1109/BROADNETS.2008.4769088} }- Georg Post
Jean-Michel Houssin
L. Noirie
Pierre Peloso
Year: 2010
Networks for high-bandwidth services combining photonic circuit cross-connects with packet switches
BROADNETS
IEEE
DOI: 10.1109/BROADNETS.2008.4769088
Abstract
We describe the dimensioning and benchmarking of packet transport networks with aggregated link capacities up to the Tbit/s range, using a circuit-switching (cross-connect) infrastructure below packet-switching nodes. The different network solutions to be evaluated are designed to carry large numbers of high-definition video and other data streams, with upper bounds on packet latency and packet loss rate for all flows. Trends of evolution are analyzed, based on a performance and cost comparison of several node architectures with different associated transport technologies (packet and circuit layers). Simulations of packet-switch nodes under pseudo-self-similar traffic, extraction of analytical models for latency and loss, end-to-end best path selection, and constrained optimization of crossconnect and packet-switch resources are combined to derive the dimensioning of all the network elements. As a result of this study, photonic cross-connects associated with carrier-grade Ethernet switches appear as the most efficient architectures, thanks to cost savings for transit traffic. Single-layer solutions involving for example only packet-switch routers turn out to be more expensive.
