Three layers multi-granularity OCDM switching system based on learning-stateful PCE

Yubao Wang; Yanfei Liu; Hao Sun

doi:10.1117/12.2282832

24 October 2017 Three layers multi-granularity OCDM switching system based on learning-stateful PCE

Yubao Wang, Yanfei Liu, Hao Sun

Proceedings Volume 10464, AOPC 2017: Fiber Optic Sensing and Optical Communications; 1046406 (2017) https://doi.org/10.1117/12.2282832
Event: Applied Optics and Photonics China (AOPC2017), 2017, Beijing, China

Abstract

In the existing three layers multi-granularity OCDM switching system (TLMG-OCDMSS), F-LSP, L-LSP and OC-LSP can be bundled as switching granularity. For CPU-intensive network, the node not only needs to compute the path but also needs to bundle the switching granularity so that the load of single node is heavy. The node will paralyze when the traffic of the node is too heavy, which will impact the performance of the whole network seriously. The introduction of stateful PCE(S-PCE) will effectively solve these problems. PCE is composed of two parts, namely, the path computation element and the database (TED and LSPDB), and returns the result of path computation to PCC (path computation clients) after PCC sends the path computation request to it. In this way, the pressure of the distributed path computation in each node is reduced. In this paper, we propose the concept of Learning PCE (L-PCE), which uses the existing LSPDB as the data source of PCE’s learning. By this means, we can simplify the path computation and reduce the network delay, as a result, improving the performance of network.

Citation Download Citation

Yubao Wang, Yanfei Liu, and Hao Sun "Three layers multi-granularity OCDM switching system based on learning-stateful PCE", Proc. SPIE 10464, AOPC 2017: Fiber Optic Sensing and Optical Communications, 1046406 (24 October 2017); https://doi.org/10.1117/12.2282832

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