发明名称 METHOD, DEVICE AND SYSTEM FOR MEASURING ASYMMETRIC TIME DELAY OF COMMUNICATION PATHS
摘要 <p>The present invention relates to the network communication field, and in particular, to a method, an apparatus, and a system for measuring the asymmetric delay of a communication path. The method includes: sending, by a first node, a first delay measurement message to a second node whose local clock is synchronized with a local clock of the first node; receiving, by the first node, a second delay measurement message sent by the second node after the second node receives the first delay measurement message; calculating, according to time when the first delay measurement message is sent by the first node and time when the second node receives the first measurement message, a communication path delay in a direction towards the second node; calculating, according to time when the second node sends the second delay measurement message and time when the second measurement message is received by the first node, a communication path delay in a direction leaving the second node; and obtaining a measured value of the asymmetric delay of the communication path according to the communication path delays in the two directions. With the technical solution of the present invention, the asymmetric delay of a communication path is measured through delay measurement messages, which may simplify the measurement of the asymmetric delay of the communication path.</p>
申请公布号 EP2458787(A1) 申请公布日期 2012.05.30
申请号 EP20100832621 申请日期 2010.11.08
申请人 HUAWEI TECHNOLOGIES CO., LTD. 发明人 LIU, SONG
分类号 H04L12/26 主分类号 H04L12/26
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