Control Plane Latency Reduction for Service Chaining in SDN-enabled Mobile Edge Computing Systems

• Main Authors: Hsieh, Yao-Chou, 謝曜舟
• Other Authors: Wang, Li-Chun
• Format: Others
• Language: zh-TW
• Published: 2017
• Online Access: http://ndltd.ncl.edu.tw/handle/33hzhb

碩士 === 國立交通大學 === 網路工程研究所 === 106 === Service chaining enhances the performance and security of mobile users' traffic. However, compared with traditional cloud computing platform, it is more complicated to deploy service chains in SDN-enabled MEC systems. Services in a chain may be deployed in edge network or core network, therefore, when deploying service chains we need to consider the latency in the SDN control plane including the delay of installing flow entries to SDN switches, the delay of handling flow table overflow in SDN network, and the delay of exchanging messages between edge and core network. High control plane latency degrades the users' QoE. Therefore, in this thesis we proposed a service chain management scheme, Hash-based Group Management (HGM). In this scheme, we assign users into groups according to the required service chain type. For each group, we deploy a service chain shared by group members. To speedup group assignment, we also use a Hash-based List data structure to maintain information of groups. Compared with User-based service chain management scheme, the proposed HGM can reduce 50% control plane latency.