网口容错在嵌入式设备中的设计与实现

发布时间：2018-05-16 23:08

本文选题：嵌入式 + 网络设备　；参考：《计算机工程与科学》2016年12期

【摘要】：针对嵌入式网络设备的服务可靠性问题,现有的网口容错主要采用双网卡冗余设计,研究针对单网卡多网口的情况,提出了一种网口容错方法,该方法能有效利用系统带宽资源。提出的网口容错方法包括一种网口状态检测机制和故障网口服务数据迁移方法,并设计了相应的功能模块。故障检测模块实现基于Loopback的检测方法,容错处理模块则实现在检测到故障后,可将故障网口的服务负载数据根据迁移策略迁移到其余正常网口。所提出的方法实现了对网口工作状态的快速检测和负载数据的有效容错。该方法具有应用无关性、资源占用率低的特点,通过测试验证了该方法的可行性。
[Abstract]:Aiming at the problem of service reliability of embedded network equipment, the existing network interface fault tolerance mainly adopts the design of dual network card redundancy. A fault tolerant method of network interface is proposed for the single network card and multiple network ports. This method can effectively utilize the system bandwidth resources. The proposed fault tolerance method includes a network port state detection mechanism and a fault port service data migration method, and the corresponding functional modules are designed. The fault detection module implements the detection method based on Loopback, and the fault-tolerant processing module can migrate the service load data of the fault network interface to the other normal network ports according to the migration strategy. The proposed method realizes the fast detection of the working state of the network interface and the effective fault tolerance of the load data. The method has the characteristics of application independence and low resource occupancy. The feasibility of the method is verified by test.
【作者单位】：中国科学院声学研究所国家网络新媒体工程技术研究中心;中国科学院大学;
【基金】：中国科学院战略性先导科技专项课题(XDA06010302) 中国科学院声学研究所知识创新工程项目(Y154191601)
【分类号】：TN915.05

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