Technology of Network & Communication
|
App. Res. of Comp. Printed Article
Vol. 37, 2020 No. 3
864-867

Efficient LFA implementation method based on incremental shortest path first algorithm

Geng Haijun1
Guo Xiaoying1
Yin Xia2
1. School of Software Engineering, Shanxi University, Taiyuan 030006, China
2. Dept. of Computer Science & Technology, Tsinghua University, Beijing 100084, China
DOI: 10.19734/j.issn.1001-3695.2018.09.0646

Abstract

This paper proposed an efficient LFA implementation method based on incremental shortest path first algorithm(ERPISPF) to reduce the computational overhead and deployment difficulty of the existing LFA algorithm. The paper first turned the problem of quick implementation of LFA into how to efficiently calculate the minimum cost of all its neighbors to all other nodes of the network on the shortest path tree rooted at the compute node. Then it presented a theorem for calculating the cost and proved its correctness. Finally, it theoretically analyzed the time complexity of the algorithm. Experiments show that compared with LFA algorithm, ERPISPF not only has less computation overhead, but also provides the same failure protection rate as LFA.

Foundation Support

国家自然科学基金资助项目(61702315)

Publish Information

DOI: 10.19734/j.issn.1001-3695.2018.09.0646
Publish at: Application Research of Computers Printed Article, Vol. 37, 2020 No. 3
Section: Technology of Network & Communication
Pages: 864-867
Serial Number: 1001-3695(2020)03-049-0864-04

Publish History

[2020-03-05] Printed Article

Cite This Article

耿海军, 郭小英, 尹霞. 基于增量最短路径优先算法的高效LFA实现方法 [J]. 计算机应用研究, 2020, 37 (3): 864-867. (Geng Haijun, Guo Xiaoying, Yin Xia. Efficient LFA implementation method based on incremental shortest path first algorithm [J]. Application Research of Computers, 2020, 37 (3): 864-867. )

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  • Application Research of Computers Monthly Journal
  • Journal ID ISSN 1001-3695
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Application Research of Computers, founded in 1984, is an academic journal of computing technology sponsored by Sichuan Institute of Computer Sciences under the Science and Technology Department of Sichuan Province.

Aiming at the urgently needed cutting-edge technology in this discipline, Application Research of Computers reflects the mainstream technology, hot technology and the latest development trend of computer application research at home and abroad in a timely manner. The main contents of the journal include high-level academic papers in this discipline, the latest scientific research results and major application results. The contents of the columns involve new theories of computer discipline, basic computer theory, algorithm theory research, algorithm design and analysis, blockchain technology, system software and software engineering technology, pattern recognition and artificial intelligence, architecture, advanced computing, parallel processing, database technology, computer network and communication technology, information security technology, computer image graphics and its latest hot application technology.

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