US 11,736,343 B2
Failure influence estimation apparatus, failure influence estimation method and program
Yoichi Matsuo, Musashino (JP); Takehiro Kawata, Musashino (JP); Ken Nishimatsu, Musashino (JP); and Tatsuaki Kimura, Musashino (JP)
Assigned to Nippon Telegraph and Telephone Corporation, Tokyo (JP)
Appl. No. 17/621,605
Filed by Nippon Telegraph and Telephone Corporation, Tokyo (JP)
PCT Filed Jun. 26, 2020, PCT No. PCT/JP2020/025331
§ 371(c)(1), (2) Date Dec. 21, 2021,
PCT Pub. No. WO2021/002298, PCT Pub. Date Jan. 7, 2021.
Claims priority of application No. 2019-122896 (JP), filed on Jul. 1, 2019.
Prior Publication US 2022/0417078 A1, Dec. 29, 2022
Int. Cl. H04L 41/069 (2022.01); H04L 41/0686 (2022.01); H04L 41/16 (2022.01); H04L 43/062 (2022.01)
CPC H04L 41/069 (2013.01) [H04L 41/0686 (2013.01); H04L 41/16 (2013.01); H04L 43/062 (2013.01)] 9 Claims
OG exemplary drawing
 
1. A failure effects estimating device, comprising:
an input unit configured to input a log and a traffic amount obtained from a communication system when an abnormality occurs;
an estimating unit, including one or more processors, configured to estimate a failure effects amount in the communication system, on the basis of the log and the traffic amount, wherein estimating the failure effects amount comprises:
(i) estimating, based on the log and the traffic amount, a failure effects time that represents a time length during which one or more user terminals are affected by abnormality occurring in the communication system,
(ii) estimating a traffic change amount that represents an amount of decrease in network traffic during the estimated failure effects time, and
(iii) estimating the failure effects amount, comprising: estimating a network index value as the failure effects amount based on the log and the estimated traffic change amount, wherein the network index value represents a round trip delay time (RTT) observed at user terminals receiving services; and
an output unit configured to output the failure effects amount estimated by the estimating unit.