於雲端網路中以OpenFlow整合MPTCP子流管理與VLAN Based多路徑

Integrating MPTCP Subflow Management and VLAN-Based Multi Paths with Openflow in a Cloud Network

吳昊穎(Hao-Ying Wu)

指導教授 ： 吳承崧

國立中正大學/工學院/通訊工程學系/碩士(2015年)

摘要

隨著網路的日新月異、雲端時代的來臨，許多伺服器紛紛被放置在雲上交由一些雲端伺服器集中式管理，形成了現今的雲端資料中心，然而隨著雲端的快速發展越來越多伺服器也將其所提供的運算功能以及儲存空間搬上雲端，造成雲端資料中心資料量的增加，因此新型態的雲端拓樸架構例如: Fat-Tree、BCube和VL2相繼產生。由於此新型態的拓樸架構提供了端點到端點間許多不同的路徑，當雲端內部的路由協定還是採用傳統IP路由的最短路徑 (Shortest Path Routing) 或是傳統乙太網路交換器所使用的最小生成樹 (Minimum Spanning Tree) 將無法有效的利用新型態雲端拓樸所提供多路徑的優點也無法達到負載平衡以及提高傳輸能力。
因此本論文利用VLAN方式於雲端資料中心傳輸架構中建立多條鏈結不相交路徑並透過Multipath TCP (MPTCP) 的子流管理以及VLAN配置演算法有效提升雲端網路內部頻寬，最後利用OpenFlow整合MPTCP子流管理，讓MPTCP所產生的子流能透過不同VLAN路徑傳輸在多路徑的雲端網路上，以有效分散流量並且提升傳輸效率達到最小切割可用頻寬以及容錯性。

關鍵字

SDN ； MPTCP ； VLAN

並列摘要

With the growth of Cloud Service, Data Centers have become an efficient and promising infrastructure for supporting data storage. Data Centers increase the size of data dramatically. However, the traditional tree structure Data Centers network topologies will be unable to support the large data flows. Therefore, Some new network architectures are presented, such as Fat-Tree, BCube and VL2. However, new network architectures have some problems. Because of new network architectures have many redundant paths. When Data Centers run a routing protocol such as Shortest Path Routing or Minimum Spanning Tree, it will be unable to use redundant paths to achive load balancing. In order to increase the transmission capacity and high survivability.
Therefore, this paper presents using VLAN based on creating multiple Link-Disjoint paths in Cloud Data Center network. Through MPTCP Subflow management and VLAN assign algorithm increase Cloud network bandwidth. Finaily using OpenFlow integrated MPTCP subflow and VLAN-Based Cloud Network, Let MPTCP subflow can use different VLAN paths to effectively disperse traffic and improve the transmission efficiency and achieve fault tolerance.

並列關鍵字

SDN ； MPTCP ； VLAN

參考文獻

[9] H. A. Kim, B. Oh and J. Lee, “Improvement of MPTCP Performance in heterogeneous network using packet scheduling mechanism,” Asia-Pacific Conference on Communications, pp. 842-847, 15-17 October 2012.

[17] Ryu Development Team“ryu Documentation Release 3.14,” 2014.

[20] M. Sandri, A. Silva, L. A. Rocha, and F. L. Verdi,“On the Benefits of Using Multipath TCP and Openflow in Shard Bottlenecks,”IEEE 29th International

Conference on Advanced Information Networking and Applications, 2015.

[21] 蔡宜學,“以VLAN為基礎的多路徑Fat-Tree雲端中心網路設計,”2015