SDN试验床网络虚拟化切片机制综述

doi:10.11959/j.issn.1000-436x.2016083

Abstract

Abstract:

The researches on future network architecture and key logies need test environment both open and flex-ible. Traditional distribute architecture was short on effective control and new protocol deployment. The emerging of the software defined networking (SDN) technology provides a promising way to s this problem and become a major re-search direction in recent years. In the SDN based network testbed, the virtual network slicing technology was a key issue since it could separate physical resource and provided individual virtual network environment. Therefore, the slicing me-thods of some typical network virtualization platforms with the perspective of “slice identifier”, “virtual nodes ab-straction”and “virtual links abstraction”were introduced , and the future research directions were concluded in this field.

Key words: software defined networking, OpenFlow, network virtualization, testbed

Jiang LIU,Tao HUANG,Chen ZHANG,Ge ZHANG. Research on network virtualization slicing mechanism in SDN-based testbeds[J]. Journal on Communications, 2016, 37(4): 159-171.

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References 22

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	关键技术	FlowVisor	ADVisor	VerTIGO	OpenVirtex	CoVisor
切片网络标识技术	流量识别策略	12元组的任意组合	物理端口号	12元组的任意组合	物理端口号/MAC地址	12元组的任意组合
	切片标识字段	12元组的任意组合	VLAN的部分比特	12元组的任意组合	改写后的源MAC地址	12元组的任意组合
	试验地址重叠	不支持	支持	不支持	支持	不支持
	适用场景	面向业务流	面向多租户	面向业务流	面向多租户	面向业务流
虚拟节点技术	DPID/Port ID映射	不支持	支持	支持	支持	支持
	显式抽象	不支持	不支持	不支持	支持	支持
	一虚多	部分支持	部分支持	部分支持	部分支持	完整支持
	多虚一	不支持	不支持	支持	支持	未明确说明
虚拟链路技术	任意拓扑	不支持	支持	支持	支持	支持
	自动化映射算法	不支持	无，通过手动配置	基于链路带宽	基于最短路径	未明确说明
	链路调优	不支持	不支持	支持	不支持	未明确说明

Research on network virtualization slicing mechanism in SDN-based testbeds

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