IMPLEMENTATION OF PERFORMANCE MONITORING TECHNIQUES FOR EVALUATIONS ON AN EMULATED L4S NETWORK

As networks develop and permeate ever deeper many aspects of today’s society, the need for performance monitoring techniques has become crucial in a wide variety of contexts. Among such methods figure Explicit Host-to-Network Flow Measurement techniques (EFM), which allow to extract network metrics from a data transmission without accessing the connection’s endpoints. The objective of this thesis is twofold: on one hand, it involves implementing Spin Bit and Delay Bit, two EFM techniques capable of measuring in-network latency; on the other, it aims to test these techniques on L4S, a state-of-the-art network suite for TCP. This research introduces a functioning implementation of these EFM techniques. As a result, it highlights both the Delay Bit’s intrinsic advantages over the Spin Bit, and L4S’s improvements over classic TCP, presenting various use-case scenarios tested on both physical and virtual platforms.