面向分层解耦的虚拟节点可靠性设计

doi:10.11959/j.issn.1000-0801.2018206

Abstract

Abstract:

Firstly,the concept of random events was introduced into the communication process,and the serial and parallel reliability algorithms were introduced.Secondly,the reliability design of virtual hosts,clusters and spine-leaf switching networks and their calculation methods were analyzed.Finally,the connection based on each component unit was analyzed.Based on the connection relationships among the components,the reliability design scheme of virtual nodes and its reliability algorithm was proposed.

Key words: reliability index, reliability design, virtualized node

Yangchun LI,Yongbing FAN,Nan CHEN,Tian CHEN. Design of reliability for layered decoupled virtual nodes[J]. Telecommunications Science, 2018, 34(9): 160-168.

节点数	99%	99.90%	99.99%
1	99.000 0%	99.900 0%	99.990 0%
2	98.010 0%	99.800 1%	99.980 0%
3	97.029 9%	99.700 3%	99.940 0%
...	...	...	...
10	90.438 2%	99.004 5%	0

节点数	99%	99.90%	99.99%
1	99.000 0%	99.900 0%	99.990 0%
2	99.990 0%	99.999 9%	100.000 0%
3	99.999 9%	100.000 0%	100.000 0%
...	...	...	...
10	100.000 0%	100.000 0%	100.000 0%

单层可靠性	90.000 00%	99.000 00%	99.900 00%	99.990 00%	99.999 00%	99.999 900%
可靠性P_s	72.900 00%	97.029 90%	99.700 30%	99.970 00%	99.997 00%	99.999 700%

服务器数量n	1	2	3	4	5	6	7	8
可靠性P_c	99.699 9%	99.999 1%	100.000 0%	100.000 0%	100.000 0%	100.000 0%	100.000 0%	100.000 0%

spine数量m	1	2	3	4	5	6	7	8
可靠性P_s-n(P_spine=99.9%)	99.899 80%	99.999 80%	99.999 90%	99.999 90%	99.999 90%	99.999 90%	99.999 90%	99.999 90%
可靠性P_s-n(P_spine=99.999%)	99.999 00%	100.000 00%	100.000 00%	100.000 00%	100.000 00%	100.000 00%	100.000 00%	100.000 00%

Design of reliability for layered decoupled virtual nodes

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spine数量m	1	2	3	4	5	6	7	8
可靠性P_e-w (P_spine=99.9%)	99.899 6%	99.999 7%	99.999 8%	99.999 8%	99.999 8%	99.999 8%	99.999 8%	99.999 8%
可靠性P_e-w (P_spine=99.999%）	99.999 0%	100.000 0%	100.000 0%	100.000 0%	100.000 0%	100.000 0%	100.000 0%	100.000 0%

spine数	节点可靠性P_n	服务器数量n
spine数	节点可靠性P_n	1	2	3	4	5	6	7	8
2	P_n(P_spine=99.9%)	99.40040%	99.99790%	99.999 69%	99.999 70%	…	…	…	99.999 70%
	P_n(P_spine=99.999%)	99.40070%	99.99820%	99.999 99%	100.000 00%	…	…	…	100.000 00%
3	P_n(P_spine=99.9%)	99.40050%	99.99800%	99.999 79%	99.999 80%	…	…	…	99.999 80%
	P_n(P_spine=99.999%)	99.40070%	99.998 20%	99.999 99%	100.000 00%	…	…	…	100.000 00%
4	P_n(P_spine=99.9%)	99.40050%	99.998 00%	99.999 79%	99.999 80%	…	…	…	99.999 80%
	P_n(P_spine=99.999%)	99.400 70%	99.998 20%	99.999 99%	100.000 00%	…	…	…	100.000 00%
…	…	…	…	…	…	…	…	…	…
8	P_n(P_spine=99.9%)	99.400 50%	99.998 00%	99.999 79%	99.999 80%	…	…	…	99.999 80%
	P_n(P_spine=99.999%)	99.400 70%	99.998 20%	99.999 99%	100.000 00%	…	…	…	100.000 00%

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