[1]蒋建峰.路由设备 IPv6 网络隧道功能驱动研究[J].计算机技术与发展,2022,32(08):129-134.[doi:10. 3969 / j. issn. 1673-629X. 2022. 08. 021]
　JIANG Jian-feng.Research on Function Drive of IPv6 Network Tunnel of Routing Equipment[J].,2022,32(08):129-134.[doi:10. 3969 / j. issn. 1673-629X. 2022. 08. 021]
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路由设备 IPv6 网络隧道功能驱动研究()
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《计算机技术与发展》[ISSN:1006-6977/CN:61-1281/TN]

卷:
32
期数:
2022年08期
页码:
129-134
栏目:
网络与安全
出版日期:
2022-08-10

文章信息/Info

Title:
Research on Function Drive of IPv6 Network Tunnel of Routing Equipment
文章编号:
1673-629X(2022)08-0129-06
作者:
蒋建峰1; 2
1. 苏州工业园区服务外包职业学院,江苏 苏州 215123;2. 南京邮电大学 计算机学院,江苏 南京 210003
Author(s):
JIANG Jian-feng1; 2
1. Suzhou Industrial Park Institute of Services Outsourcing,Suzhou 215123,China;
2. School of Computer Science,Nanjing University of Posts and Telecommunications,Nanjing 210003,China
关键词:
隧道; 6to4 中继; NP 芯片; 驱动指令; 转发信息库
Keywords:
tunnel; 6to4 relay; NP chip; drive instruction; forward information database
分类号:
TP393
DOI:
10. 3969 / j. issn. 1673-629X. 2022. 08. 021
摘要:
因特网的发展导致 IP 地址的资源耗尽,IPv6 网络将逐渐取代 IPv4 网络的主体地位。 IPv4 网络向 IPv6 网络过渡过程中,出现了很多 IPv6 网络的孤岛,隧道技术是实现 IPv6 孤岛之间联通的关键过渡技术。 IPv6 隧道技术是将 IPv6 报文作为要发送给隧道另一端的 IPv4 报文的净荷数据,然后经由 IPv4 骨干网络传输。 在网络数据的转发过程中,基于硬件的数据转发效率要远高于软件驱动的数据转发效率。 依据 IPv6 隧道技术设计了一套驱动流程,指导隧道报文在转发芯片上的转发。 介绍了系统结构图以及 NP 芯片的转发流程和驱动指令,基于三层单播转发将数据包在隧道中封装,在 OUTINFO 表项内添加隧道标记和信息,将各种指令信息下发 NP 芯片,生成 FIB 转发表指导数据转发方案。 实验表明该驱动流程可以很好地指导 6to4 隧道报文正常转发,提高网络的数据转发速率,降低网络延迟,特别是当数据流量增大到 300Mbps 以上时,网络延迟和抖动性能可以提升 100% ~400%,具有较强的实用性。
Abstract:
The development of the Internet has led to the exhaustion of IP address resources,and IPv6 networks will gradually replace thedominant position of IPv4 networks. During the transition from the IPv4 network to the IPv6 network,many isolated islands of the IPv6network have appeared,and the tunnel technology is the key transition technology to realize the connectivity between the IPv6 isolatedislands. The IPv6 tunnel technology uses IPv6 packets as the payload data of the IPv4 packets to be sent to the other end of the tunnel,and then transmits them via the IPv4 backbone network. In the process of network data forwarding,hardware-based data forwarding efficiency is much higher than software-driven data forwarding efficiency. Based on the IPv6 tunnel technology,a set of driving proceduresis designed to guide the forwarding of tunnel messages on the forwarding chip. In this study,we introduce the system structure diagramand the forwarding process and driving instructions of the NP chip. Based on the three-layer unicast forwarding,the data packet is encapsulated in the tunnel,the tunnel mark and information are added to the OUTINFO entry,and then various instruction information is issuedto the NP chip to generate the FIB forwarding table to guide the data forwarding scheme. Experiments show that the driving process canwell guide the normal forwarding of 6to4 tunnel messages,increase the data forwarding rate of the network,and reduce network delay.When the data stream increases to more than 300 M,the network delay and jitter performance can be improved by 100% ~ 400%.

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更新日期/Last Update: 2022-08-10