Multi-domain ASON/GMPLS network operation: current status and future evolution

Nishioka, Itaru; Iizawa, Yohei; Araki, Satoshi

doi:10.1117/12.746062

Cited by 12 publications

(3 citation statements)

References 5 publications

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“…Among them, PCE-based routing model exhibits the better performance for computing optimal path routes that include those for backup paths, which can be done in parallel and hence the delay is minimized [14]. This paper adopts PCEbased routing, and distributed path computation is assumed since multiple carriers/domains are assumed.…”

Section: Pce-based Routing Modelmentioning

confidence: 98%

Multi-domain path control system for large-scale photonic networks

Araki

Hasegawa

Sato

2011

Network Architectures, Management, and Applications IX

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This paper describes an inter-domain path control system for large-scale photonic networks, especially considering applicability to multiple carrier domain networks. The overall architecture of multi-domain optical network control system is reviewed. Our system employs PCE (Path Computation Element) based routing model and utilizes maximum flow information in path computation and Path Key scheme in signaling, which improve the load-balancing and the confidentiality of the inside information for the route computation and the path provisioning among different carriers. The measured performance results for inter-domain path computation and path setups using global optimization scheme is also provided. It includes estimation of the path provisioning time at the network scale dependency with the route computation time and the signaling time. As a result, its applicability to a 1000-node scale photonic network is shown.

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Section: Pce-based Routing Modelmentioning

confidence: 98%

Multi-domain path control system for large-scale photonic networks

Araki

Hasegawa

Sato

2011

Network Architectures, Management, and Applications IX

Self Cite

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“…Intelligently providing inter-domain connections across multi-domain optical networks is a complex problem [1][2][3] that becomes more difficult when transport devices are supplied by different equipment vendors (e.g., AlcatelLucent, Fiberhome, Huawei, ZTE) [4,5].…”

Section: Introductionmentioning

confidence: 99%

Intelligent Inter-domain Connection Provisioning for Multi-domain Multi-vendor Optical Networks

Liu¹,

Hua²,

Zheng³

et al. 2015

J. Opt. Commun. Netw.

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We propose a semicentralized semidistributed network architecture based on active stateful path computation elements (PCEs) to intelligently provide end-to-end inter-domain connections in multi-domain optical transport networks supplied by different equipment vendors. A novel control entity, called an inter-domain communication control and management element (ICCME), is introduced into the architecture to achieve flexible distributed interdomain control and centralized intra-domain management by integrating with "proactive" and "reactive" stateful capabilities. Inter-domain routing and signaling are completed with the collaboration of multiple ICCMEs in a peer-to-peer manner, which decentralizes highly intensive computation and signaling to multiple ICCMEs. In addition, we put forward a unified inter-domain communication protocol to eliminate the differences in private signaling message formats of various vendors' domains. We report a successful field trial of providing inter-domain connections across a commercial three-domain three-vendor optical transport network. Also, experimental results indicate that ICCMEbased architecture performs better than previous schemes in terms of scalability, i.e., low average routing load of control entities and low average delay in establishing interdomain connections, but results in higher message overhead and blocking probability.

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“…The interdomain routing based on a path computation element (PCE) was proposed by the Internet Engineering Task Force (IETF), and it outperforms other mechanisms because of its high efficiency in interdomain path computation and considerable flexibility in system integration [3−8] . Backward recursive path computation (BRPC) is a regular procedure for interdomain routing processes, calculating optimal paths in a determined sequence of domains [9,10] . Hierarchical PCE architecture is then brought forward to improve performance given that this architecture enhances domain sequence determination [11−13] .…”

mentioning

confidence: 99%

Experimental validation of domain-level gradient-based and hierarchical PCE-based routing and control in heterogeneous optical networks

et al. 2013

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A domain-level gradient-based routing (DLR) algorithm for heterogeneous optical networks with synchronous digital hierarchy and optical transport network domains is proposed and experimentally validated. This algorithm classifies domains into groups with incremental levels on the basis of domain-level partitioning, and guides paths level by level along a gradient on the basis of interdomain routing tree evolution. The proposed algorithm is implemented in the hierarchical path computation element-based control architecture for connection provisioning. Testbeds with commercial and emulated nodes are established to verify the feasibility and performance of the algorithm. Experimental and emulation results show that DLR effectively performs in terms of network blocking probability, real time characteristics, and scalability.OCIS codes: 060.4250, 060.4251.

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Multi-domain ASON/GMPLS network operation: current status and future evolution

Cited by 12 publications

References 5 publications

Multi-domain path control system for large-scale photonic networks

Multi-domain path control system for large-scale photonic networks

Intelligent Inter-domain Connection Provisioning for Multi-domain Multi-vendor Optical Networks

Experimental validation of domain-level gradient-based and hierarchical PCE-based routing and control in heterogeneous optical networks

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