SERENATE WP3 Equipment Questionnaire Roberto Sabatino TF-NGN Budapest, 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