Evaluation of Network Reliability for Computer Networks with Multiple Sources

Table 2

Connection probability of all physical lines and LPSs.

PL no.	LPS in this PL	Disconnection starting time	Disconnection ending time	Disconnection duration	Connection probability (𝑡 = a week = 4032 mins)	Root caused
𝑃1	𝑙1,1; 𝑙2,1; 𝑙3,1; 𝑙4,1	2011/4/21 10:17:00 AM	2011/4/21 11:56:00 AM	99 mins	𝑡−99/𝑡=0.98	Circuit broken
𝑃2	𝑙2,2; 𝑙3,2; 𝑙5,2	N/A	N/A	N/A	1	No
𝑃3	𝑙2,3; 𝑙7,2	N/A	N/A	N/A	1	No
𝑃4	𝑙1,2	2010/9/28 10:08:00 AM	2010/9/28 02:07:00 PM	239 mins	𝑡−239/𝑡=0.94	Card broken
𝑃5	𝑙4,2; 𝑙5,3	2011/4/21 22:01 PM	2011/4/22 04:29:00 AM	388 mins	𝑡−388/𝑡=0.90	Circuit broken
𝑃6	𝑙4,3; 𝑙5,4	2009/5/29 05:16 AM	2009/5/29 08:27:00 AM	191 mins	𝑡−191/𝑡=0.95	Circuit broken
𝑃7	𝑙3,3; 𝑙6,2; 𝑙8,2	2009/9/16 04:40:00 PM	2009/9/16 05:01:00 PM	211 mins	𝑡−211/𝑡=0.99	Circuit broken
𝑃8	𝑙2,4; 𝑙7,3	2011/3/11 01:53:00 PM	2011/3/12 01:37:00 AM	704 mins	𝑡−704/𝑡=0.83	Japans’ earthquake
𝑃9	𝑙11,2	2011/2/17 01:19:00 AM	2011/2/17 03:33:00 AM	134 mins	𝑡−134/𝑡=0.97	Card disable
𝑃10	𝑙1,3; 𝑙4,4; 𝑙11,1; 𝑙5,5	2010/5/25 04:28:00 AM	2010/5/25 11:11:00 AM	403 mins	𝑡−403/𝑡=0.90	Circuit broken
𝑃11	𝑙3,4; 𝑙12,1; 𝑙7,4	2009/3/21 08:58:00 PM	2009/3/22 03:23:00 AM	385 mins	𝑡−385/𝑡=0.90	Card disable
𝑃12	𝑙10,1; 𝑙13,1	2011/2/8 01:17:00 AM	2011/2/8 11:07:00 AM	590 mins	𝑡−590/𝑡=0.85	Card disable
𝑃13	𝑙5,1; 𝑙6,1; 𝑙7,1; 𝑙8,1	N/A	N/A	N/A	1	No