臺灣博碩士論文加值系統

本論文是以SDN(Software Defined Networking，軟體定義網路)為基礎去設計一套多層級流量管控機制。以SDN的優點去實作一套可以針對不同的使用者，分配其相對應的流量配額，並依照使用者的配額使用比例，將會做出相對應的限流，藉此達到有效地流量管控效果。本系統包含三個模組，一開始會利用『流量監控模組』去對所有使用者的流量進行監控，並將監控的流量資料送交『數據分析模組』進行分析。最後，『配額分配模組』會根據使用者的配額狀況，動態地調整使用者的路由與相關設定，以達到動態有效地流量管控機制。

This thesis is to design a multi-level traffic management mechanism based on SDN (Software Defined Networking). The traffic management mechanism is composed of three modules, including "Traffic Monitoring Module", "Data Analysis Module" and "Quota Assignment Module". In SDN, multi-level policy and secondary link is used to manage traffic more effectively. Each user will be limited by the multi-level limitations according to the amount of transmission, and then the user who exceeded his quota will be serviced by the secondary link. The secondary link keep the user who exceeded his quota can continue use the Internet, and keep the primary link not be occupied by the user who exceeded his quota.

摘要................................................................................................................................. i
ABSTRACT ................................................................................................................... ii
致謝.............................................................................................................................. iii
Table of Contents .......................................................................................................... iv
List of Figures ................................................................................................................ v
List of Tables ................................................................................................................. vi
Chapter 1 Introduction ................................................................................................... 1
Chapter 2 Related Works ............................................................................................... 3
2.1 SDN Introduction ................................................................................................. 3
2.2 SDN Characteristics ............................................................................................. 4
2.3 OpenFlow 1.3 ....................................................................................................... 5
2.4 Mininet & Ryu ...................................................................................................... 7
2.5 Related Works....................................................................................................... 8
Chapter 3 Traffic Management Mechanism ................................................................ 10
3.1 System Architecture ........................................................................................... 10
3.2 Traffic Monitoring Module................................................................................. 12
3.3 Data Analysis Module ........................................................................................ 13
3.4 Quota Assignment Module ................................................................................. 14
3.5 Proposed Mechanism ......................................................................................... 15
Chapter 4 Experimental Results................................................................................... 19
4.1 Experimental Environment ................................................................................. 19
4.2 Experiment 1: 0.5 GBytes Transmission for General User ................................ 22
4.3 Experiment 2: 1 GBytes Transmission for General User ................................... 26
4.4 Experiment 3: 1.5 GBytes Transmission for General User ................................ 29
4.5 Comparison of Three Policies ............................................................................ 32
Chapter 5 Conclusion ................................................................................................... 35
References .................................................................................................................... 36

[1] Open Networking Foundation，http://www.opennetworking.org
[2] OpenFlow Switch Specification Version 1.0.0， http://www.opennetworking.org/images/stories/downloads/sdn-resources/ onf-specifications/openflow/openflow-spec-v1.0.0.pdf
[3] OpenFlow Switch Specification Version 1.3.0， http://www.opennetworking.org/images/stories/downloads/sdn-resources/ onf-specifications/openflow/openflow-spec-v1.3.0.pdf
[4] Mininet，http://mininet.org/
[5] Ryu SDN Framework，http://osrg.github.io/ryu/
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