主动测量SDN性能的机制

doi:10.11959/j.issn.1000-436x.2015199

Abstract

Abstract:

An active SDN measurement mechanism was proposed,which could measure the end-to-end path performance between any two nodes,then the OpenFlow measurement protocol OFMP was designed,and a prototype OFMd was implemented,which could measure multiple performance metrics of the flow between two nodes without changing the switch forwarding rule.The experiment results show that OFMd can acquire multiple end to end path performance metrics only by sending a single probe packet.

Key words: software defined networking, active measurement mechanism, measurement protocol

Ming CHEN,Fei DAI,Bo XU,Chang-you XING,Bing LI,Guo-min ZHANG. Active measurement mechanism measuring SDN performances[J]. Journal on Communications, 2015, 36(6): 31-40.

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References 11

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测度	交换机类型	时钟同步
路由	所有节点均为OFMP交换机	不需要
RTT	仅端节点为OFMP交换机	不需要
单向时延	OFMP交换机之间	需要
逐跳时延	所有节点均为OFMP交换机	需要
丢包率	仅端节点为OFMP交换机	不需要
控制平面与数据平面间的时延	OFMP控制器与OFMP交换机间	不需要

背景流量大小/(Mbit·s^?1)	第1跳S1-S2		第2跳S2-S3		第3跳S3-S5		第4跳S5-S6
背景流量大小/(Mbit·s^?1)	时延/ms	方差	时延/ms	方差	时延/ms	方差	时延/ms	方差
10	0.19	0.080 2	0.11	0.002 7	0.14	0.003 6	0.12	0.003 2
200	0.23	0.007 4	0.15	0.004 3	0.17	0.005 4	0.16	0.005 2
400	0.23	0.006 8	0.17	0.004 8	0.18	0.004 9	0.19	0.004 2
600	0.25	0.004 2	0.22	0.004 5	0.22	0.003 8	0.20	0.002 8

单向流路由	测试报文中的路由(不含控制器)	RTT平均值/ms
S1→S2→S3→S5→S6	S1→S2→S3→S5→S6→S5→S3→S2→S1	1.247
S1→S2→S4→S5→S6	S1→S2→S5→S6→S5→S2→S1	1.112

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Active measurement mechanism measuring SDN performances

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