Network Function Virtualization Mapping Algorithm based on Node Selection Strategy

ZHU Guo-hui; LEI Lan-jie; KANG Xiao-xuan

doi:10.13756/j.gtxyj.2019.02.005

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Network Function Virtualization Mapping Algorithm based on Node Selection Strategy

- Network Function Virtualization Mapping Algorithm based on Node Selection Strategy
- Study on Optical communication Issue 2, Pages: 19-23(2019)
- 作者机构：
  
  西安邮电大学通信与信息工程学院
- 作者简介：
- 基金信息：
- DOI：10.13756/j.gtxyj.2019.02.005
  CLC： O157.5
- Published：2019，
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[1]朱国晖,雷兰洁,康潇轩.基于节点选择策略的网络功能虚拟化映射算法[J].光通信研究,2019(02):19-23.

ZHU Guo-hui, LEI Lan-jie, KANG Xiao-xuan. Network Function Virtualization Mapping Algorithm based on Node Selection Strategy. [J]. (2):19-23(2019)
[1]朱国晖,雷兰洁,康潇轩.基于节点选择策略的网络功能虚拟化映射算法[J].光通信研究,2019(02):19-23. DOI： 10.13756/j.gtxyj.2019.02.005.

ZHU Guo-hui, LEI Lan-jie, KANG Xiao-xuan. Network Function Virtualization Mapping Algorithm based on Node Selection Strategy. [J]. (2):19-23(2019) DOI： 10.13756/j.gtxyj.2019.02.005.

摘要

针对网络功能虚拟化（NFV）中服务功能链的设计和映射问题

提出一种基于节点选择策略的NFV（NS-NFV）映射算法。该算法在服务功能链设计中考虑虚拟节点依赖性

根据节点资源度大小决定虚拟节点映射顺序

根据物理节点重要度为虚拟节点选择最优映射节点

并且以耦合的方式完成服务功能链的设计与映射。仿真结果表明

该算法有效地减少了回溯步长和运行时间

并且在请求接受率方面有明显改善。

Abstract

Aiming at the design and mapping of service function chain in Network Function Virtualization（NFV）

a NFV mapping algorithm based on Node Selection strategy（NS-NFV） is proposed. Considering the virtual node dependency in the design of service function chain

NS-NFV determines the mapping order of virtual nodes according to the node resource degree. It also selects the optimal mapping node for the virtual node according to the importance of the physical node

and completes the design and mapping of service function chain in a coupling manner. Simulation results show that NS-NFV can effectively reduce the backtracking steps and running time. In addition

the request acceptance rate can be improved significantly.

关键词

网络功能虚拟化服务功能链节点选择策略节点资源度

Keywords

NFVservice function chainnode selection strategynode resource degree

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