Loss measurement on a link with reordering

    公开(公告)号:US11784903B1

    公开(公告)日:2023-10-10

    申请号:US17707630

    申请日:2022-03-29

    Abstract: According to certain embodiments, a method determines a number of transmitted packets that a first node transmitted to a second node via a link and a number of received packets that the second node received from the first node via the link. The number of transmitted packets and the number of received packets are determined for each interval of a plurality of intervals. The method further comprises determining a plurality of packet loss values. Each packet loss value is associated with a respective interval and is determined based on the number of transmitted packets and the number of received packets associated with the respective interval. The method further comprises determining variability based on the plurality of packet loss values and configuring a value associated with reordering detection based on whether the variability exceeds a threshold.

    LOSS MEASUREMENT ON A LINK WITH REORDERING
    92.
    发明公开

    公开(公告)号:US20230318953A1

    公开(公告)日:2023-10-05

    申请号:US17707630

    申请日:2022-03-29

    Abstract: According to certain embodiments, a method determines a number of transmitted packets that a first node transmitted to a second node via a link and a number of received packets that the second node received from the first node via the link. The number of transmitted packets and the number of received packets are determined for each interval of a plurality of intervals. The method further comprises determining a plurality of packet loss values. Each packet loss value is associated with a respective interval and is determined based on the number of transmitted packets and the number of received packets associated with the respective interval. The method further comprises determining variability based on the plurality of packet loss values and configuring a value associated with reordering detection based on whether the variability exceeds a threshold.

    LAYER-3 PERFORMANCE MONITORING SECTIONALIZATION

    公开(公告)号:US20230300058A1

    公开(公告)日:2023-09-21

    申请号:US18201829

    申请日:2023-05-25

    Abstract: A method is disclosed for the collection of performance metrics by establishing service operations administration and maintenance (OAM) sessions between an actuator and a plurality of reflectors in a communication network. Test packets from an actuator simultaneously reach a plurality of reflectors along a test path. Each single test packet results into a plurality of test results, one per reflector, with quasi-synchronous performance metrics to sectionalize a network and more efficiently isolate fault or performance problems without the need for additional test packets to isolate the issue. Another method is disclosed wherein an actuator generates and transmits a plurality of simultaneous test packets, one per NID device, resulting into a plurality of test results, one per reflector, with quasi-synchronous performance metrics to sectionalize a network and more efficiently isolate fault or performance problems without the need for additional test packets to isolate the issue.

    Quality estimation methods, quality estimation apparatus, and recording medium

    公开(公告)号:US09722898B2

    公开(公告)日:2017-08-01

    申请号:US14837413

    申请日:2015-08-27

    Inventor: Atsushi Kubota

    CPC classification number: H04L43/0841 G06F9/505 H04L41/142 H04L43/0864

    Abstract: An quality estimation method executed by a processor included in a quality estimation apparatus, the method includes obtaining a plurality of packets communicated between a client device at a first point and a server device; extracting a number of losses indicating the number of lost packets among the plurality of packets by analyzing the plurality of packets; determining statistics information of a delay time due to packet loss of the plurality of packets, based on the number of losses and quality information indicating quality of a network used for communication between a client device at a second point and the server device; and estimating a response time of the server device on operation performed by the client device at the second point based on the determined statistics information.

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