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학술지 Performance Evaluation of Service-Aware Optical Transport System
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저자
윤지욱, 유제훈, 유태환
발행일
201004
출처
ETRI Journal, v.32 no.2, pp.241-247
ISSN
1225-6463
출판사
한국전자통신연구원 (ETRI)
DOI
https://dx.doi.org/10.4218/etrij.10.1409.0088
협약과제
09MR4700, 패킷-광 통합 스위치 기술 개발, 유태환
초록
We propose and experimentally demonstrate a service-aware optical transport system. The proposed service-aware optical transport system makes a flow based on service type and priority of traffic. The generated flow is mapped to a corresponding sub-{\\lambda} for transport over an optical network. Using sub-{\\lambda} provided by the centralized control plane, we could effectively provide quality-of service guaranteed Ethernet service and best-effort service simultaneously in a single link. The committed information rate (CIR) traffic and best-effort traffic are assigned to different sub-{\\lambda}s. The bandwidth of the CIR traffic is guaranteed without being affected by violation traffic because the bandwidth is managed per each sub-{\\lambda}. The failure detection time and restoration time from a link failure is measured to be about 60 μs and 22 ms, respectively, in the ring network. The measured restoration time is much smaller than the 50 ms industry requirement for real-time services. The fast restoration time allows the proposed service-aware optical transport system to offer high availability and reliability which is a requirement for transport networks. Copyright © 2010 ETRI.
키워드
Carrier Ethernet, Packet-optical transport system, Quality of service, Transport network
KSP 제안 키워드
Best Effort(BE), Carrier Ethernet, Failure detection, Fast restoration, High availability, Link failure, Optical network, Optical transport, Performance evaluation, Restoration time, Ring network