Demonstration of the highly reliable Hikari router network based on a newly developed disjoint path selection scheme

Okamoto, Satoru; Oki, Eiji; Shimano, K.; Sahara, A.; Yamanaka, Naoaki

doi:10.1109/mcom.2002.1046993

Cited by 18 publications

(5 citation statements)

References 3 publications

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“…In this paper, we focus on a scenario with larger number of wavelengths since this is consistent with the foreseeable evolution of optical networks. For example, commercial CWDM routers are available with 8 wavelengths [11] and DWDM prototypes have been reported with 32 [12] and 128 wavelengths [13]. For such number of wavelengths we find discrepancies between the analytical and simulation results.…”

Section: A Balking Model For Fdl-equipped Obs Routersmentioning

confidence: 96%

On the Use of Balking for Estimation of the Blocking Probability for OBS Routers with FDL Lines

Morató

Aracil

2006

Information Networking. Advances in Data Communications and Wireless Networks

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Esta es la versión de autor de la comunicación de congreso publicada en: This is an author produced version of a paper published in: Abstract. This paper deals with estimation of blocking probabilities for OBS switches with Fiber Delay Lines (FDLs) and full wavelength conversion. An incoming burst that finds the wavelengths occupied is temporarily stored in a FDL. Hence, contention will be sorted out successfully if the residual life of the system is smaller than the maximum FDL delay. In order to derive the blocking probability, the most accurate methodology to date is the use of balking systems [1][2][3][4]. Even though the approach is accurate for very short lengths of the FDLs we identify the cases in which inaccuracy is detected. This happens precisely when the system works with low loss probabilities. Mainly for large number of wavelengths on the fibers and values of the FDL length at least in the vicinity of the burst service time.

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Section: A Balking Model For Fdl-equipped Obs Routersmentioning

confidence: 96%

On the Use of Balking for Estimation of the Blocking Probability for OBS Routers with FDL Lines

Morató

Aracil

2006

Information Networking. Advances in Data Communications and Wireless Networks

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“…Path computation considering the SRLG constraints was presented in [52]. This SRLG-aware path computation scheme was implemented in a multi-switching-capable node, called a photonic MPLS router, which integrates IP/MPLS router functions and optical-path switching functions; a restoration was demonstrated by computing backup paths with the SRLGaware path computation scheme [53]. Reference [54] addressed constraints for path computation to explicitly exclude SRLGs, abstract nodes, and resource from the computed route and specified PCEP protocol extensions.…”

Section: Path Computation Elementmentioning

confidence: 99%

Optical Networking Paradigm: Past, Recent Trends and Future Directions

Oki

Wada

Okamoto

et al. 2017

IEICE Trans. Commun.

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SUMMARY This paper presents past and recent trends of optical networks and addresses the future directions. First, we describe path networks with the historical backgrounds and trends. path networks have advanced by using various multiplexing technologies. They include time-division multiplexing (TDM), asynchronous transfer mode (ATM), and wavelengthdivision multiplexing (WDM). ATM was later succeeded to multi-protocol label switching (MPLS). Second, we present generalized MPLS technologies (GMPLS). In GMPLS, the label concept of MPLS is extended to other labels used in TDM, WDM, and fiber networks. GMPLS enables network operators to serve networks deployed by different technologies with a common protocol suite of GMPLS. Third, we describe multi-layer traffic engineering and a path computation element (PCE). Multi-layer traffic engineering designs and controls networks considering resource usages of more than one layer. This leads to use network resources more efficiently than the single-layer traffic engineering adopted independently for each layer. PCE is defined as a network element that computes paths, which are used for traffic engineering. Then, we address software-defined networks, which put the designed network functions into the programmable data plane by way of the management plane. We describe the evaluation from GMPLS to software defined networking (SDN) and transport SDN. Fifth, we describe the advanced devices and switches for optical networks. Finally, we address advances in networking technologies and future directions on optical networking.

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“…One of the major concerns is constructing a backbone network that offers the economical transport of large-scale IP packet traffic while achieving high reliability. Next generation Internet backbone network/node architectures have been extensively studied [1], [2], [3], [4].…”

Section: Introductionmentioning

confidence: 99%

A disjoint path selection scheme based on enhanced shared risk link group management for multi-reliability service

Miyamura

Kurimoto

Misawa

et al. 2005

GLOBECOM '05. IEEE Global Telecommunications Conference, 2005.

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We consider a mechanism for providing a multi-reliability service in multilayer GMPLS networks. By introducing GMPLS restoration techniques and shared risk link group management, we can provide a highly reliable protected connection service. However, there is a trade-off between reliability and efficiency of network resource usage. In addition, reliability requirements differ depending on the type of service (e.g., Internet access or leased line). Thus, we propose a mechanism for calculating an efficient route for a protected connection that can satisfy specific reliability conditions requested by customers. We also present simulation results that indicate our schemes are remarkably effective for achieving a better balance between end-toend reliability and efficiency. We also demonstrate the quantitative relationship between availability of a service and resource efficiency through simulation experiments.

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Demonstration of the highly reliable Hikari router network based on a newly developed disjoint path selection scheme

Cited by 18 publications

References 3 publications

On the Use of Balking for Estimation of the Blocking Probability for OBS Routers with FDL Lines

On the Use of Balking for Estimation of the Blocking Probability for OBS Routers with FDL Lines

Optical Networking Paradigm: Past, Recent Trends and Future Directions

A disjoint path selection scheme based on enhanced shared risk link group management for multi-reliability service

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