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SERENATE WP3 Equipment Questionnaire. Roberto Sabatino TF-NGN Budapest, 17-18 October 2002. Purpose and structure. To gain an understanding of how optical technology developments will evolve over next 2, 5 years and how they can benefit R&E networks interfaces reach and resilience
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SERENATE WP3Equipment Questionnaire Roberto Sabatino TF-NGN Budapest, 17-18 October 2002
Purpose and structure • To gain an understanding of how optical technology developments will evolve over next 2, 5 years and how they can benefit R&E networks • interfaces • reach and resilience • bw grooming capabilities • circuit switching • network management • service models carriers/(N)RENs • cost analysis
Interfaces • Market drivers for 40+Gbps • what signalling and protocol features • implications of 40+Gbps on fibre infrastructure • standards vs. proprietary solutions • single channel, multichannel, trasnport system between DWDM • colours vs. SONET framing
Reach and resilience • What resilience techniques are available • (N)RENS rely mostly on multiple unprotected services • how does 40+Gbps affect reach
BW grooming • Alternatives to SDH to inject different signals and present them as separate interfaces to users • Granularity • Can they span multiple wavelengths • Standards
Circuit switching • OEO vs. OOO • real operational implications of both
Network management • Peer vs.overlay model for IP and optical integration • interdomain allocation of resources • SNMP, accounting
Service model • Tools for managing (N)REN infrastructure • managed fibre • tools for interdomain operation