发明授权
- 专利标题: Packet delay characteristic measuring apparatus and method
- 专利标题(中): 分组延迟特性测量装置和方法
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申请号: US12632374申请日: 2009-12-07
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公开(公告)号: US08243607B2公开(公告)日: 2012-08-14
- 发明人: Sumiyo Okada , Noriyuki Fukuyama , Masanobu Morinaga , Hideaki Miyazaki
- 申请人: Sumiyo Okada , Noriyuki Fukuyama , Masanobu Morinaga , Hideaki Miyazaki
- 申请人地址: JP Kawasaki
- 专利权人: Fujitsu Limited
- 当前专利权人: Fujitsu Limited
- 当前专利权人地址: JP Kawasaki
- 代理机构: Fujitsu Patent Center
- 主分类号: H04L12/28
- IPC分类号: H04L12/28
摘要:
A packet delay characteristic measuring apparatus that can accurately only measure a delay in a network even if a delay may occur also in a device that receives packets. The apparatus includes: a sending section for periodically sending out test packets each including sending time information to the network; a branching section for handing over the test packets flowing from the network to each of a plurality of communication paths by electrically branching a communication path; a plurality of receiving sections each of which is connected to the branching section for receiving the identical test packets and calculating delay times based on the sending time information; and a measurement value determining section for comparing a plurality of delay times calculated by each of the plurality of receiving sections for the identical test packets and determining the smallest delay time value as a measurement value.
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