Dissertation > Excellent graduate degree dissertation topics show

Research and Implementation of Ethernet Link Failure Detection

Author: HanZuo
Tutor: ChengYouQing
School: WRI
Course: Communication and Information System
Keywords: Ethernet Physical link Logical link UDLD BFD
CLC: TP393.11
Type: Master's thesis
Year: 2012
Downloads: 8
Quote: 0
Read: Download Dissertation

Abstract


With the development of computer technology and communication industry´╝îEthernettransmit speed grows from10M bps to100G, bps and it is applied in LAN and MAN. Atthe same time, the reliability and availability requirements of Ethernet networkrequirements are also getting higher and higher. The physical or logical link failure willcause the network crush, so it is very important to avoid the failure and to detect andrecover the failure rapidly.According to the research and statistics, over80%failures of Ethernet network aredue to link failure. This thesis mainly research on a type of Ethernet physical link fault,unidirectional link fault, as well as a type of logical link fault, bidirectional forwardingfault. Unidirectional link failure is usually the physical link fault. The fault will usuallycause a series of problem, for example, affect the MSTP detection network loop. Thebidirectional forwarding failure is usually the logic link fault, such as one of logic linkfailure of network layer3forwarding, the bidirectional forwarding detection is mainly usedin layer3forwarding before. Link failure detection generally cooperates with some otherprotocols to achieve fast failure recovery. This paper focuses on the research andimplementation of link failure detection itself.This thesis analyse the phenomenon and problems caused by unidirectional link, andpropose solutions to the failure. Unidirectional link detection eliminates unidirectional linkfailure, avoid network loops and broadcast storms. And introduce the principle andworking mode of bidirectional forwarding detection in detail, and also realizes abi-directional Forwarding Detection protocol in the network layer and datalink layer.The thesis implements the UDLD protocol based on data link layer on vxWorks operatingsystem. And the two protocols are applie to the layer2and layer3Ethernet switches ofFiberhome company, and achieves millisecond detection time.Chapter1of this thesis, first expounds the background of the Ethernet and discussionthe type of of Ethernet link failure. With analysis on the type of Ethernet link failure, propose the corresponding solutions to the different problem from physical link fault orlogic link fault. Chapter2proposes unidirectional link detection protocol for solutionunidirectional link failure and describes UDLD protocols in detail. Describes the principleand work processes of bidirectional forwarding detection protocol. By analysis of thecurrent bi-directional forwarding detection mechanism which applied on network layer,and propose a solution based on data link layer. Chapter3introduces the overall designscheme of UDLD protocol, implements the protocol related functions. And implementsBFD protocol based on network layer and data link layer. Chaper5shows the test resultsof the two protocols. Chaper6summarizes the paper.

Related Dissertations

  1. Research and Realization of Precision Clock Synchronization Protocol,TP393.11
  2. Design of Embedded Ethernet Controller Based on B/S Mode,TP273.5
  3. The Design of Reconstruction Scheme of TV Network Maintenance,TN948.1
  4. Research on Gas Monitoring System Based on ARM and Multi-sensor Fuzzy Data Fusion,TP277
  5. The Research on the Deployment of IT Supporting in the Light Enters and the Copper Back of Telecom Fixed Line,TN915.63
  6. Design on Power System Faults Real-Time Recording System and Implementation on Communication Port,TM76
  7. Design of Solar Energy Collection Heat Control System for Bathing and Detecting Breakdown,TP273
  8. Industrial Ethernet and Passive Optical Network in the Application of Power Distribution Auto Mation System,TN929.1;TP273
  9. Research and Design of Remote Monitoring System Based on GPRS and Ethernet,TP277
  10. Research on Industrial Ethernet and Development of the Embedded TCP/IP Stack,TP273
  11. Yunlong County immigrant supporting projects 35kV substation back the old state system design and implementation,TM63;TM76
  12. Research and Development of Stability Monitoring System for Small and Medium Hydropower Units,TV734.2
  13. Study on the Technology of Control Plane in the Interconnection Network Based on the Intergraded Node,TN929.1
  14. Research of QoS Optimization Based on Neural Network Prediction for Ethernet Passive Optical Network,TN929.1
  15. Interface Driver Design and Realization of Mutiple-dsp Parallel Processing for Route Planning System,TP368.12
  16. Research of Some Issues about Energy Storage Power Station and Collector System,TM91
  17. PCI-E interface -based data acquisition system FPGA Design and Implementation,TN791
  18. Ethernet-based industrial robot teaching Device Development,TP242.2
  19. EPL Industrial Ethernet real-time strategy and its application in the SOE system,TP273
  20. Shantou Telecom EPON study area networking solutions,TN929.1
  21. EPON technology and mobile access network applications in Nanjing Research,TN929.5

CLC: > Industrial Technology > Automation technology,computer technology > Computing technology,computer technology > Computer applications > Computer network > Local area network (LAN), metropolitan - area network (MAN) > Ethernet
© 2012 www.DissertationTopic.Net  Mobile