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公开(公告)号：US20220191117A1
公开(公告)日：2022-06-16
申请号：US17425530
申请日：2020-01-27
发明人： Mauro COCIGLIO , Fabio BULGARELLA
IPC分类号： H04L43/0829
摘要： A method for enabling a round-trip packet loss measurement between two nodes of a packet-switched communication network exchanging packets comprising a packet loss field settable to an idle value or one or more measurement values. The first node transmits to the second node first packets having the packet loss field set to a measurement value. Upon reception of each first packet, the second node transmits back to the first node a respective second packet having the packet loss field set to a measurement value. Upon reception of each second packet, the first node transmits back to the second node a respective third packet having the packet loss field set to a measurement value. A measurement point placed between the two nodes may count the number of first packets and the number of third packets and use them to provide a round-trip packet loss measurement.
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公开(公告)号：US20230087379A1
公开(公告)日：2023-03-23
申请号：US17905305
申请日：2021-03-02
发明人： Mauro COCIGLIO
IPC分类号： H04L43/0829
摘要： A method for exchanging packets between two nodes of a packet-switched communication network. Each packet comprises a marking field and a reflected marking field. Each node sets the value of the marking field in its outgoing packets to be transmitted to the other node. This value is alternately switched between two alternative marking values every N outgoing packets. While incoming packets are received from the other node, each node also sets the value of the reflected marking field of its outgoing packets according to the value of the marking field of the incoming packets. An observer placed between the two nodes may count the packets whose marking field is equal to any of the marking values and/or the packets whose reflected marking field is equal to any of the marking values, and use N and such counts to provide a packet loss measurement.
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公开(公告)号：US20230031183A1
公开(公告)日：2023-02-02
申请号：US17785317
申请日：2020-12-21
发明人： Mauro COCIGLIO , Giuseppe FIOCCOLA
IPC分类号： H04L43/026 , H04L45/7453 , H04L43/08
摘要： An apparatus and associated method for processing packets transmitted in a packet-switched communication network includes a sampling module that identifies amongst the received packets a plurality of samples distributed in a statistically uniform way amongst at least two non-overlapping sample sequences. Each sample sequence is then subjected to at least one identification rule, thereby identifying in the sample sequence at least one sub-sequence of samples fulfilling the at least one identification rule. The identification rule comprises a condition on the value of at least one identification field of the packets. Then, at least one parameter indicative of a behavior of the at least one sub-sequence of samples is provided.
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公开(公告)号：US20220263742A1
公开(公告)日：2022-08-18
申请号：US17622055
申请日：2020-06-26
发明人： Mauro COCIGLIO
IPC分类号： H04L43/0829 , H04L43/0864
摘要： A method for enabling a round-trip packet loss measurement in a packet-switched communication network wherein a first node and a second node exchange packets comprising a packet loss field settable to an idle value or one or more measurement values. The first node performs a generation step whereby first packets having their set to a measurement value are transmitted to the second node. For each received first packet, the second node transmits back a second packet having its set to a measurement value. The first node then performs a reflection step whereby, for each received second packet, it transmits to the second node a respective third packet having its set to a measurement value. The time lapsing between start of the generation step and start of the reflection step has a predefined and substantially constant duration.
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公开(公告)号：US20200336401A1
公开(公告)日：2020-10-22
申请号：US16957610
申请日：2018-12-21
IPC分类号： H04L12/26 , H04L12/841 , H04L12/723 , H04L12/46
摘要： In a method for measurement of a round-trip performance in a packet-switched communication network, a measurement device cooperating with the communication network generates a flow of test packets formatted according to the network protocol supported by the network and comprising the address of the measurement device as destination address. The test packets are then transmitted within a tunnel set up in the network and the measurement device generates one or more transmission parameters. At the end of the tunnel, the test packets are extracted therefrom and sent back to the measurement device by the forwarding function of the network protocol supported by the network. Upon receipt of the test packets, it generates one or more reception parameters, which are then combined with the transmission parameters to provide the round-trip performance measurement.
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公开(公告)号：US20220029898A1
公开(公告)日：2022-01-27
申请号：US17298716
申请日：2019-12-02
发明人： Mauro COCIGLIO , Giuseppe FIOCCOLA
IPC分类号： H04L12/26
摘要： A method for performing a performance measurement in a communication network. Each measurement point in the network identifies packets of a multipoint packet flow and selects therefrom a number of samples, based on the value of a sampling signature calculated by applying a hash function to a bit mask in each identified packet. For each sample, a performance parameter and the packet's content are provided to a management server. The management server identifies a cluster of measurement points such that each identified packet of the multipoint packet flow received by a cluster's input measurement point is also received at a cluster's output measurement point. Amongst the performance parameters provided by the cluster's measurement points, the performance parameters relating to samples belonging to a certain packet sub-flow are identified, based on the packet's content. Then, a performance measurement is performed on the packet sub-flow.
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公开(公告)号：US20170085414A1
公开(公告)日：2017-03-23
申请号：US15312093
申请日：2014-05-27
CPC分类号： H04L41/046 , H04L41/0213 , H04L41/0813 , H04L41/0853 , H04L43/0829 , H04L43/0852 , H04L43/087
摘要： A system and method for managing a network apparatus of a communication network. The system includes a network management center including a management-on-board manager MoB-M and a management-on-board agent MoB-A executed at the network apparatus. During its execution, the agent MoB-A performs at least part of a management task on the network apparatus. Besides, during its execution the agent MoB-A retrieves at least one instruction from the manager MoB-M, and executes it for completing the management task. This way, the manager MoB-M may dynamically adapt the behavior of the agent MoB-A to unforeseen events or changes occurring in the network, without the need to rewrite the whole agent logic.
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8.发明申请公开(公告)号：US20160105353A1
公开(公告)日：2016-04-14
申请号：US14893415
申请日：2013-05-31
发明人： Mauro COCIGLIO
IPC分类号： H04L12/26
CPC分类号： H04L43/50 , H04L43/0829 , H04L43/0852 , H04L43/0858 , H04L43/0864 , H04L43/087 , H04L43/16
摘要： A method for performing a performance measurement of a link between two nodes of a communication network. Before starting a measurement, measurement mode information including start time and packet transmission rate are provided to both nodes. At the start time, a first node generates and transmits to the other node a packet flow including packets with transmission times determined by the start time and packet transmission rate. The packet flow is divided into alternating blocks transmitted during even and odd block periods. At each block period, while the packet flow is received, a variable indicative of its behaviour is updated by using the measurement mode information and detected information on reception of the packet flow. Then, a parameter indicative of a performance of the packet flow during the block period is calculated using the value reached by the variable at the end of the block period.
摘要翻译： 一种用于执行通信网络的两个节点之间的链路的性能测量的方法。 在开始测量之前，将包括开始时间和分组传输速率的测量模式信息提供给两个节点。 在开始时间，第一节点生成并发送包括由开始时间和分组传输速率确定的传输时间的分组的分组流。 分组流被分成在偶数和奇数块周期期间传输的交替块。 在每个块周期，当接收到分组流时，通过使用测量模式信息和关于分组流的接收的检测信息来更新指示其行为的变量。 然后，使用在块周期结束时由变量达到的值来计算表示块周期期间的分组流的性能的参数。
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公开(公告)号：US20230009799A1
公开(公告)日：2023-01-12
申请号：US17779690
申请日：2020-11-27
发明人： Mauro COCIGLIO
IPC分类号： H04L43/0829 , H04L43/02 , H04L43/062 , H04L43/0852
摘要： In a method for exchanging packets between first and second nodes of a packet-switched network, each packet comprises two fields settable to an idle value or measurement value. The first node transmits to the second node first packets having a filed set to measurement value. Upon reception of each first packet, the second node transmits back to the first node a second packet having a field set to measurement value. Upon reception of each second packet, the first node transmits to the second node a third packet having another field set to measurement value. A packet loss measurement is calculated as a difference between the number of first packets and the number of third packets.
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公开(公告)号：US20210409296A1
公开(公告)日：2021-12-30
申请号：US17290488
申请日：2019-11-05
发明人： Mauro COCIGLIO , Giuseppe FIOCCOLA
IPC分类号： H04L12/26
摘要： A method for enabling a performance measurement on packet flow transmitted through a communication network. A marking value is periodically switched in the packets with a marking period Tm. The packet flow is then divided into blocks of duration Ts (synchronization period). Each synchronization period comprises an integer number of marking periods. Two or more measurement points on the path of the packet flow may provide a performance parameter for each marking period and associate thereto a synchronization information generated based on their local clocks and relating to the synchronization period containing the marking period to which the performance parameter relates; and a sequence information indicating the marking period's position within the synchronization period. A management server may identify performance parameters provided by different measurement points and relating to a same marking period based on the synchronization information and the sequence information.
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