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Possible contributions to translucent networking activities in WP5

Possible contributions to translucent networking activities in WP5. Annalisa MOREA and Hisao NAKAJIMA France Telecom, R&D Division 2 avenue Pierre-Marzin, 22307 Lannion cedex, France. Physical Impairment Aware Dimensioning Tool (C++) for Translucent Network Design (1/2).

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Possible contributions to translucent networking activities in WP5

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  1. Possible contributions to translucent networking activities in WP5 Annalisa MOREA and Hisao NAKAJIMA France Telecom, R&D Division 2 avenue Pierre-Marzin, 22307 Lannion cedex, France NOBEL Plenary June 13-15 2005 H. Nakajima, France Telecom R&D

  2. Physical Impairment Aware Dimensioning Tool (C++) for Translucent Network Design (1/2) • The tool can integrate different physical impairments in the routing procedure; • Impairments currently taken into account: OSNR, PMD, CD; • Path search algorithm: SPF in a layered graph with administrative weight assigned to each NE; • Wavelength level granularity & wavelength continuous path first; • Wavelength Converter (WC) location: in the node where WC is needed; • Path feasibility test and 3R regenerator location: in the last node satisfying the equivalent OSNR level (assignment of equivalent OSNR penalty to PMD and CD); • Survivability schemes: no protection or 1+1 path protection; NOBEL Plenary June 13-15 2005 H. Nakajima, France Telecom R&D

  3. Physical Impairment Aware Dimensioning Tool for Translucent Network Design (2/2) • Input data: traffic matrix, Network topology, Node and link structure, Engineering rule, … ; • Node and link structure: OXC, WDM links; • Output 1: NE count, in particular 3R regenerator/WC count and location; • Output 2: Network cost by using a cost model. • Other tool: Mathlab program with simplified path feasibility test using the WDM system reach (node types: OXC, EXC/OXC, EXC, OADM) NOBEL Plenary June 13-15 2005 H. Nakajima, France Telecom R&D

  4. An example:38-node network with 950 Gbps Cost model 38 nodes 1  = 10Gbps 91 connection requests NOBEL Plenary June 13-15 2005 H. Nakajima, France Telecom R&D

  5. Possible contributionson what and where • Network dimensioning (C++), • Node architecture, • Cost model, • and cost comparison between transparent and opaque networks (Matlab) • Contribution amount: not very important… • D26 - 4 Network-level simulation - 5 Preliminary cost comparison • D28 - 2.2 All optical vs. O-E-O NOBEL Plenary June 13-15 2005 H. Nakajima, France Telecom R&D

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