In this paper presents the main approaches to improve energy efficiency of telecommunications network. The main attention is focused on technological and architectural approaches to reduce power consumption. Shown the correlation approaches to improve energy efficiency.
Unified network platform to support voice, data and multimedia applications is attractive for optical level. Optical packet switching (OPS) provides a platform where the only transport data unit for all type of traffic will be package. On the other hand, quality of service (QoS), class of service (CoS) and the type of service (ToS) required for the future of the Internet more elaborated and more powerful control plane. Optical switching labels (OLS) supports OPS, optical flow switching (OFS) and optical burst switching (OBS) with full interoperability of QoS, CoS and ToS.