一种支持节点分割的vEPC虚拟网络功能部署模型

doi:10.11999/JEIT160507

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Abstract

Software Defined Networking (SDN) and Network Function Virtualization (NFV) promote network innovation. NFV realizes logic centralized deployment of Virtualized Network Function (VNF). This paper proposes a kind of node-splitting VNF deployment model for problem of pooling deployment of VNF in virtualized Evolved Packet Core (vEPC) network. Based on the acknowledgement of virtual request traffic-aware, the model uses node-splitting algorithm to realize the dynamic adjustment of the mapping relation between VNF and physical network slices and organize the same VNFs across different domains as one pool. Compared with the traditional joint mapping algorithm of multi-function chain, the method can realize fine-grained management and overall scheduling of node resources, optimize network view, and reduce resource fragments. It is proven by network topology instance provided by SNDlib that the model can reduce resource overhead of virtual network and improve the ratio of acceptance of virtual network requests.

Key words： Network Function Virtualization (NFV) Virtualized network function placement 5G Evolved Packet Core (EPC) Node-splitting

Received: 17 May 2016 Published: 17 November 2016

PACS:

TN915.81

Fund:

The National 863 Program of China (2014AA01A701), The National Natural Science Foundation of China (61521003), The Ministry of Science and Technology Support Plan (2014BAH30B01)

Corresponding Authors: TANG Hongbo E-mail: thb@mail.ndsc.com.cn

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	TANG Hongbo
	YUAN Quan
	LU Ganqiang
	WANG Xiaolei
	ZHAO Yu

Cite this article:

TANG Hongbo,YUAN Quan,LU Ganqiang等. A Model for Virtualized Network Function Deployment Based on Node-splitting in vEPC[J]. JEIT, 2017, 39(3): 546-553.

URL:

http://jeit.ie.ac.cn/EN/10.11999/JEIT160507 OR http://jeit.ie.ac.cn/EN/Y2017/V39/I3/546

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