公开(公告)号：US20230246928A1

公开(公告)日：2023-08-03

申请号：US18002802

申请日：2021-06-24

Applicant: TELECOM ITALIA S.p.A.

Inventor： Mauro COCIGLIO

IPC: H04L43/026 ,  H04L43/16 ,  H04L43/0817

CPC classification number: H04L43/026 ,  H04L43/16 ,  H04L43/0817

Abstract: It is disclosed a method and system for providing performance measurements in a packet-switched communication network, wherein a performance measurement application run by a user communication device monitors the performance of a packet flow which a user application run by the user communication device exchanges with the packet-switched communication network. This monitoring comprising providing values of a performance parameter relating to the packet flow. If, based on the performance parameter values provided by the performance measurement application, a failure condition affecting the packet flow is detected, a further monitoring of the performance of the packet flow is activated, by one or more measurement points located within the packet-switched communication network on the path of the packet flow. This further monitoring comprising providing values of a further performance parameter relating to the packet flow.

公开(公告)号：US20230239225A1

公开(公告)日：2023-07-27

申请号：US17999716

申请日：2021-05-26

Applicant: TELECOM ITALIA S.p.A.

Inventor： Mauro COCIGLIO

IPC: H04L43/028 ,  H04L43/08

CPC classification number: H04L43/028 ,  H04L43/08

Abstract: It is disclosed a performance measurement application for a user communication device. The device runs at least one user application which exchanges at least one packet flow with a packet-switched communication network. When executed, the performance measurement application receives from an owner of the user communication device a request for performing a performance measurement. In response to such request, the performance measurement application activates a marking functionality comprising marking upstream packets of the packet flow to be measured and inducing the network node originating the downstream packets of the packet flow to be measured to mark them. The performance measurement application then provides performance parameter(s) relating to the marked upstream packets as transmitted and/or the marked downstream packets as received and, based on such parameter(s), provides a performance measurement. The measurement results are then shared with a measurement management server.

公开(公告)号：US20230009799A1

公开(公告)日：2023-01-12

申请号：US17779690

申请日：2020-11-27

Applicant: TELECOM ITALIA S.p.A.

Inventor： Mauro COCIGLIO

IPC: H04L43/0829 ,  H04L43/02 ,  H04L43/062 ,  H04L43/0852

Abstract: 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.

公开(公告)号：US20210409296A1

公开(公告)日：2021-12-30

申请号：US17290488

申请日：2019-11-05

Applicant: TELECOM ITALIA S.p.A.

Inventor： Mauro COCIGLIO ,  Giuseppe FIOCCOLA

IPC: H04L12/26

Abstract: 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.

公开(公告)号：US20210250258A1

公开(公告)日：2021-08-12

申请号：US17049500

申请日：2019-04-23

Applicant: TELECOM ITALIA S.p.A.

Inventor： Mauro COCIGLIO ,  Giuseppe FIOCCOLA

IPC: H04L12/26

Abstract: It is disclosed a method for enabling a performance measurement in a packet-switched communication network. A first node and a second node exchange packets comprising a marking value, which they alternately switch between two alternative marking values. The second node in particular switches the marking value applicable to the packets addressed to the other node depending on the marking value comprised in packets received therefrom. The first node writes a sampling value in one packet addressed to the second node for each marking period. Upon reception of each packet comprising the sampling value, the second node copies the sampling value in a packet addressed to the first node. One or more measurement points may be provided between the two nodes, which provide performance parameters for the packets comprising the sampling value in both directions. Such performance parameters may be used for providing round trip time measurements.

公开(公告)号：US20190288924A1

公开(公告)日：2019-09-19

申请号：US16342330

申请日：2016-10-20

Applicant: TELECOM ITALIA S.p.A.

Inventor： Mauro COCIGLIO

IPC: H04L12/26 ,  H04W4/02

Abstract: It is disclosed a method for performing a performance measurement on a packet flow transmitted along a path through a packet switched communication network. Two or more measurement points are implemented on the path. Each measurement point calculates a sampling signature for each received packet by applying a hash function to a mask of bits of the packet. Then, it selects a number of measurement samples amongst the received packets, the measurement samples being selected as those packets whose sampling signatures comprise a portion of length S equal to a predefined sampling value. While performing the selection, the measurement point counts the number of selected measurement samples and retroactively adjusts the length based on this number. Then, the measurement point provides measurement parameters relating to the selected measurement samples.

公开(公告)号：US20190158368A1

公开(公告)日：2019-05-23

申请号：US16316671

申请日：2016-07-18

Applicant: TELECOM ITALIA S.p.A.

Inventor： Mauro COCIGLIO

IPC: H04L12/26

Abstract: A method for monitoring packets in a communication network includes at an ingress point, classifying at least one packet of a traffic received at the ingress point for determining whether packets of the traffic are to be monitored and, in the affirmative, associating them with a service of monitoring; at the ingress point, creating a selection policy to identify a packet flow of the packets to be monitored according to the service of monitoring. The method also includes installing the selection policy at one or more measuring points within the communication network, and at each measuring point, identifying the packet flow on the basis of the selection policy. The method further includes at each measuring point, applying monitoring actions associated with the service of monitoring to the identified packet flow.