臺灣博碩士論文加值系統

近年來筆記型電腦、手機和各種 IoT 裝置等網路設備的數量和多樣性爆炸性的成長，這些設備也帶來了多樣化的網路流量，但也同時造成網路的管理越變越複雜。
為了管理這樣一個複雜的網路，網路管理者必須為了些裝置進行各種網路設定的變更，藉此新增這些網路裝置所需的網路功能。但是在傳統網路的管理上，硬體設定的更改需不但需要人為介入逐一修改，很多新的網路功能可能還需要在設備廠韌體升級的支持下才能完成。
軟體定義網 (SDN) 對網路管理提供了完全不一樣的彈性，除了集中化的資源管理，更能藉由程式化的方式來進行網路流向的管控。除此之外，通過與網路功能虛擬化 (NFV) 特性的結合，網路管理可以變得更加敏捷，同時更容易提供各種創新的網路服務。
本篇論文結合了SDN、NFV 以及 Cloud 的技術，提出了一個基於雲端架構下的軟體定義校園網路架構。在這個架構中，我們參考了 ON.Lab 所提出的CORD (Central Office Re-architected as a Datacenter) 框架，除了留下必要的功能外，我們也為校園網路的需求客製化了各種不同的VNF 以及 SDN 網路管理所需的應用程式。藉由雲端架構的功能，我們的網路架構可以根據需求提供不同的虛擬網路功能且靈活的管理這樣的軟體定義網路。而在最後實驗結果中顯示了我們所提出的這個網路架構是可行的。

In recent years, the number and the diversity of Internet devices, such as Laptops, Mobile Phones, and various IoT devices, have been growing tremendously. These devices introduce a huge amount of variety traffics that make network management more complicate than ever before.
To manage a network with a large number of diverse devices, network administrators may need to alter network configuration to enable or introduce some network functions to best fit the service requirements of various devices. However, in a tradition network, altering network configuration requires a lot of human intervening, and sometimes needs the support of Network OS or a firmware upgrade.
With the centralized control and programmable features, Software-Defined Network (SDN) provides more flexibility in network management. Furthermore, by moving the data plane from hardware devices to virtual machines, Network Function Virtualization (NFV) has the potential to improve the agility of network management and increase the opportunity for innovation of network services.
In this thesis, we combine SDN, NFV and Cloud technologies, and proposes an SDN Campus Network based on Cloud Architecture. We use the CORD (Central Office Re-architected as a Datacenter) framework, proposed by ON.Lab, as our reference design. We keep many merit functions or features of the CORD framework but customize several virtual network functions and SDN control functions to fulfill the requirement of a campus network. With the agility of cloud functionality, our network architecture can provide network functions on demand (by NFV) and manage campus network more flexibly (by SDN). The results of the experiments show that the proposed network architecture is very effective.

摘要 i
Abstract iii
誌謝 v
目錄 vi
圖目錄 viii
表目錄 x
第1章 Introduction 1
1.1 Motivation 1
1.2 Objective 2
1.3 Synopsis 2
第2章 Background 3
2.1 Software Defined Network (SDN) 3
2.2 Open Network Operating System (ONOS) 4
2.3 Central Office Re-architected as a Datacenter (CORD) 5
第3章 Related Work 9
3.1 SWAN: An SDN Based Campus WLAN Framework 9
3.2 Deploying WLAN service with OpenFlow technology 10
3.3 SDN-Based Enterprise and Campus Networks: A Case of VLAN Management 11
第4章 Cloud-based SDN Campus Network 13
4.1 Design Issues 13
4.2 Architecture 15
4.3 Virtual Function 17
4.4 Services 18
4.5 End-to-end connections 21
第5章 Experimental Evaluation 27
5.1 Sample Demonstration 27
5.2 Network Delay Measurement 28
5.3 Network Bandwidth Measurement 29
第6章 Conclusion and Future Work 31
6.1 Conclusion 31
6.2 Future Work 31

[1] Open networking foundation overview, https://www.opennetworking.org/about/onf-overview
[2] Software-defined networking (SDN) definition, https://www.opennetworking.org/sdn-resources/sdn-definition
[3] OpenFlow, https://www.opennetworking.org/sdn-resources/openflow
[4] OpenCORD Wiki, https://wiki.opencord.org/
[5] ONOS Wiki, https://wiki.onosproject.org/
[6] XOS Guide, http://guide.xosproject.org/archguide/
[7] OpenvSwitch, http://docs.openvswitch.org/en/latest/
[8] Docker User Guide, https://docs.docker.com/engine/userguide/
[9] Larry Peterson, Ali Al-Shabibi, Tom Anshutz, Scott Baker, Andy Bavier, Saurav Das, Jonathan Hart, Guru Palukar, William Snow, "Central office re-architected as a data center", IEEE Communications Magazine, October 2016
[10] Bo Han, Vijay Gopalakrishnan, Lusheng Ji, Seungjoon Lee, "Network function virtualization: Challenges and opportunities for innovations", IEEE Communications Magazine, February 2015
[11] Tao Lei, Zhaoming Lu, Xiangming Wen, Xing Zhao, Luhan Wang, "SWAN: An SDN Based Campus WLAN Framework", Wireless Communications, Vehicular Technology, Information Theory and Aerospace & Electronic Systems (VITAE), May 2014
[12] Suresh L, Schulz-Zander J, Merz R, Feldmann A, Vazao T. "Towards programmable enterprise WLANs with Odin", ACMSIGCOMM Workshop on Hot Topics in Software Defined Networks (HotSDN), 2012
[13] Huai-Wen Hsu, Kuei-Li Huang, Yi-Chih Kao, Shi-Chun Tsai, Yi-Bing Lin, "Deploying WLAN service with OpenFlow technology", International Journal of Network Management, March 2017
[14] Van-Giang Nguyen, Young-Han Kim, "SDN-Based Enterprise and Campus Networks: A Case of VLAN Management", Journal of Information Processing Systems, Sep 2016
[15] Y. Yamasaki, Y. Miyamoto, J. Yamato, H. Goto, and H. Sone, "Flexible access management system for campus VLAN based on OpenFlow", in Proceedings of 2011 IEEE/IPSJ 11th International Symposium on Applications and the Internet (SAINT), Munich, Germany, 2011
[16] Using Open vSwitch* with DPDK for Inter-VM NFV Applications, https://software.intel.com/en-us/articles/using-open-vswitch-with-dpdk-for-inter-vm-nfv-applications