公开(公告)号：US20240372900A1

公开(公告)日：2024-11-07

申请号：US18576475

申请日：2022-07-05

Applicant: Telecom Italia S.p.A.

Inventor： Fabio BULGARELLA ,  Mauro COCIGLIO

IPC: H04L65/1069 ,  H04L47/283 ,  H04L69/28

Abstract: It is disclosed a method for establishing a connection between a first node and a second node of a packet-switched communication network, such as by means of a three-way handshake procedure. The first node transmits to the second node a first connection establishing packet; the second node, transmits to the first node a second connection establishing packet in response to reception of the first connection establishing packet; and the first node transmits to the second node a third connection establishing packet in response to reception of the second connection establishing packet, after a predefined wait time TW has lapsed since reception of the second connection establishing packet. The predefined wait time TW, randomly selected by the first node, prevents non authorized parties who might eavesdrop the connection establishing packets—typically non encrypted—from deriving information about the positions of the nodes during the connection establishment procedure.

公开(公告)号：US20220191117A1

公开(公告)日：2022-06-16

申请号：US17425530

申请日：2020-01-27

Applicant: TELECOM ITALIA S.p.A. ,  POLITECNICO DI TORINO

Inventor： Mauro COCIGLIO ,  Fabio BULGARELLA

IPC: H04L43/0829

Abstract: 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.