A new One-Way Delay measurement system for QUIC protocol

The Quick UDP Internet Connection protocol (or QUIC) is a new transport protocol firstly introduced by Google in early 2010's for its needs and recently standardized by the IETF via the RFC 8999, 9000, 9001 and 9002 published in May 2021. The aim with this protocol is to find a valid, more performing substitute for TCP protocol in all its internet implications finding then a new base for modern HTTP protocol versions. A brand new protocol would be a great occasion to include, as a native feature and in contrast to the TCP, one or more performance measurement features in order to have a built-in network monitoring mechanism to check the network health's status with also positive effects on the QoS management aspect. As a consequence, current official IETF QUIC RFCs provide a reserved bit in (of a certain type) QUIC header packet exploitable in a performance measurement's algorithm. Goal of this thesis is to provide an in-depth study of a new algorithm, proposed by Telecom Italia, able to passively measure the One-Way Delay of a QUIC connection. A possible implementation of the theoretical mechanism has been realized and then analyzed by testing its behavior in different emulated network conditions. Finally, consideration about the algorithm's limitations have been discussed together with some adoptable countermeasures and optimizations.