A Study on WDM Network Architectures for Internet Backbone Networks in Korea

Kim, Byungjae; Lee, Yong-Gi

doi:10.1364/ofc.2001.tut5

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2003

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“…The average traffic between any two LSRs is calculated using the Gravity model for Internet traffic [27]- [29]. Since each LSR serves the same number of customers, we choose the Gravity model to find the traffic between two population centers represented by two LSRs.…”

Section: Ason Network Modelsmentioning

confidence: 99%

Waveband grooming and IP aggregation in optical networks

Parthiban

Tucker

Leckie

2003

J. Lightwave Technol.

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An automatically switched optical network (ASON) can be used as the transport layer of generalized multiprotocol label switching (GMPLS) networks. The design of an ASON involves determining the number of optical cross-connects (OXC) in the network, the required number of ports per OXC, and the interconnection topology of the OXCs. Given the number of ports per OXC, we present a linear algorithm to find the number of OXCs and to identify a cost-effective topology. We then develop a scheme that can be used to perform waveband grooming for several different topologies of an ASON that uses single-layer multigranular OXCs. We identify the bottlenecks and investigate the effect of traffic grooming schemes in the design of an ASON as a function of the peak access rate per customer. We evaluate the topologies and architectures for a national trunk network. Index Terms-Automatically switched optical network (ASON), generalized multiprotocol label switching (GMPLS), IP/optical aggregation, waveband grooming.

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Section: Ason Network Modelsmentioning

confidence: 99%