A collision-aware backward recursive PCE-based computation algorithm in multi-domain optical networks

Jianchao Xing; Jie Zhang; Yongli Zhao; Xuping Cao; Dajiang Wang; Wanyi Gu

doi:10.1117/12.904406

15 December 2011 A collision-aware backward recursive PCE-based computation algorithm in multi-domain optical networks

Jianchao Xing, Jie Zhang, Yongli Zhao, Xuping Cao, Dajiang Wang, Wanyi Gu

Proceedings Volume 8310, Network Architectures, Management, and Applications IX; 831010 (2011) https://doi.org/10.1117/12.904406
Event: SPIE/OSA/IEEE Asia Communications and Photonics, 2011, Shanghai, China

Abstract

The traditional approach for inter-domain Traffic Engineering Label Switching Path (TE-LSP) computation like BRPC could provide a shortest inter-domain constrained TE-LSP, but under wavelength continuity constraint, it couldn't guarantee the success of the resources reservation for the shortest path. In this paper, a Collision-aware Backward Recursive PCE-based Computation Algorithm (CA-BRPC) in multi-domain optical networks under wavelength continuity constraint is proposed, which is implemented based on Hierarchical PCE (H-PCE) architecture, could provide an optimal inter-domain TE-LSP and avoid resources reservation conflict. Numeric results show that the CA-BRPC could reduce the blocking probability of entire network.

Citation Download Citation

Jianchao Xing, Jie Zhang, Yongli Zhao, Xuping Cao, Dajiang Wang, and Wanyi Gu "A collision-aware backward recursive PCE-based computation algorithm in multi-domain optical networks", Proc. SPIE 8310, Network Architectures, Management, and Applications IX, 831010 (15 December 2011); https://doi.org/10.1117/12.904406

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