Quality-of-service mechanisms in IP-over-WDM networks

被引：21

作者：

Kaheel, A ^{[1
]}

Khattab, T ^{[1
]}

Mohamed, A ^{[1
]}

Alnuweiri, H ^{[1
]}

机构：

[1] Univ British Columbia, Dept Elect & Comp Engn, Vancouver, BC V5Z 1M9, Canada

来源：

IEEE COMMUNICATIONS MAGAZINE | 2002年 / 40卷 / 12期

关键词：

D O I：

10.1109/MCOM.2002.1106157

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

Classical approaches to QoS provisioning in IT networks are difficult to apply in all-optical networks. This is mainly because there is no optical counterpart to the store-and-forward model that mandates the use of buffers for queuing packets during contention for bandwidth in electronic packet switches. Since plain IP assumes a best effort service model, there is a need to devise mechanisms for QoS provisioning in IP over wavelength-division multiplexing networks. Such mechanisms must consider the physical characteristics and limitations of the optical domain. This article presents a classification and survey of recent proposals for QoS provisioning and enforcement in IP-over-WDM networks. The different QoS proposals surveyed cover three major optical switching methods: wavelength routing, optical packet switching, and optical burst switching.

引用

页码：38 / 43

页数：6

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