Title:
DELAY MEASUREMENT DEVICE, DELAY MEASUREMENT METHOD, AND PROGRAM
Document Type and Number:
WIPO Patent Application WO/2022/176123
Kind Code:
A1
Abstract:
A delay measurement device (100) comprises: a NW measurement unit (111) that measures topology, the amount of delay in each link, jitter, and the packet loss rate and that causes a NW state holding unit to hold, as NW state information, the topology, the amount of delay in each link, the jitter, and the packet loss rate; a link quality calculation unit (121) that calculates link quality between end points as a weight on the basis of the NW state information including the topology, the amount of delay in each link, the jitter, and the packet loss rate; and a route calculation function unit (122) that calculates a measurement route on the basis of weighted topology obtained by reflecting, in the topology, the weight of the link quality which has been calculated by the link quality calculation unit (121), wherein on the basis of the measurement route which has been calculated by the route calculation function unit (122), the NW measurement unit (111) carries out measurement packet transmission with respect to starting and end points, and measures the amount of delay in a NW measurement target section.
Inventors:
KAMIENOO KAZUMA (JP)
TAKAHASHI KEN (JP)
MORI HIROKI (JP)
OMACHI RENA (JP)
TAKAHASHI KEN (JP)
MORI HIROKI (JP)
OMACHI RENA (JP)
Application Number:
PCT/JP2021/006173
Publication Date:
August 25, 2022
Filing Date:
February 18, 2021
Export Citation:
Assignee:
NIPPON TELEGRAPH & TELEPHONE (JP)
International Classes:
H04L12/70
Foreign References:
| JP2014192584A | 2014-10-06 | |||
| JP2013175913A | 2013-09-05 | |||
| JP2017121057A | 2017-07-06 |
Attorney, Agent or Firm:
ISONO INTERNATIONAL PATENT OFFICE, P.C. (JP)
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