[1]周逸凡,孟旭东.未来网络架构的成本分析[J].计算机技术与发展,2019,29(02):143-146.[doi:10．3969/j．issn．1673－629X．2019．02．030]
　ZHOU Yifan,MENG Xudong.Cost Analysis of Future Network Architecture[J].,2019,29(02):143-146.[doi:10．3969/j．issn．1673－629X．2019．02．030]
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未来网络架构的成本分析()
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《计算机技术与发展》[ISSN:1006-6977/CN:61-1281/TN]

卷:
29
期数:
2019年02期
页码:
143-146
栏目:
应用开发研究
出版日期:
2019-02-10

文章信息/Info

Title:
Cost Analysis of Future Network Architecture
文章编号:
1673－629X(2019)02－0143－04
作者:
周逸凡1; 2; 孟旭东1; 2
1．宽带无线通信与传感网技术教育部重点实验室，江苏 南京 210003;2．南京邮电大学 江苏省电信网络融合实验室，江苏 南京 210003
Author(s):
ZHOU Yi－fan1; 2 ; MENG Xu－dong1; 2
1．Key Laboratory of Broadband Wireless Communication and Sensor Network Technology of MOE，Nanjing 210003，China;2．Jiangsu Telecom Network Fusion Laboratory，Nanjing University of Posts and Telecommunications，Nanjing 210003，China
关键词:
网络架构; 软件定义网络; 网络功能虚拟化; 4G; 数学模型
Keywords:
network structure; software defined network; network function virtualization; 4G; mathematical model
分类号:
TP39
DOI:
10．3969/j．issn．1673－629X．2019．02．030
摘要:
面对通信新时代大数据处理的问题，软件定义网络(SDN)和网络功能虚拟化(NFV)两个互补的架构正在渐渐发展起来，以更全面地解决一些网络问题。但是这种新架构还是未知因素，不确定是否真的能带来成本的节省。目前如果对未来网络进行测试需要大量成本。与现有的 4G 网络硬件技术相比，文中基于虚拟化的网络功能建立了一种数学模型，以路由器支持的会话数和服务提供商的数量为多种考虑情形，采用具有可靠性的参数来模拟实际问题中的一些多变因子，将复杂的现实问题数学抽象化，验证了存在某个路由器所支持的会话数的临界值，当高于这个临界值时，所需要的网络成本急剧下降，远远低于传统网络的所需成本。同时也验证了当服务提供商数量越多时，成本节省得越多，证明了采用SDN/NFV 技术在成本上的可行性。
Abstract:
Facing the problem of big data processing in the new era of communication，two complementary architectures，software－defined networking (SDN) and network function virtualization (NFV)，are gradually being developed to solve some network problems more comprehensively． However，this new structure is still unknown，and it is uncertain whether it can really bring about cost savings． Currently，testing future networks requires a lot of costs． Compared with the existing 4G network hardware technology，we establish a mathematical model based on the network function of virtualization． Taking the number of sessions supported by the router and the number of service providers as various considerations，we adopt parameters with reliability to simulate some of the multivariable factors in the actual problem，abstracting the complex practical problems in mathematics，verifying the critical value of the number of sessions supported by a certain router． When higher than this critical value，the required network cost drops sharply，far lower than the cost from the traditional network． At the same time，it is also verified that the more the number of service providers，the more the cost savings，which demonstrates the costeffectiveness of adopting SDN/NFV technology．

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更新日期/Last Update: 2019-02-10