1. A performance measurement and service quality monitoring server capable of collecting performance information within a set of equipment over a communication network, this server comprising: a generic performance model to produce performance data acquisition requests within said equipment calculate performance indicators from said performance data, and supply performance and/or service quality reports; a dedicated performance model for each type of equipment; for a given equipment, this performance model being capable of acquiring performance data from said equipment given in response to acquisition requests; an SNMP model, intercalated between the dedicated performance model and the equipment in question, to communicate by SNMP request with an SNMP agent for the equipment in question and transmit performance data received from this equipment in question to the dedicated performance model according to a specific protocol; and, in parallel with the SNMP model, an interfacing model, known as a CLI model, intercalated between the dedicated performance model and the equipment in question to communicate according to a CLI (Command Line Interface) mechanism with a CLI agent for said equipment in question; this CLI model being capable of generating command scripts to the CLI agent and transmitting performance data received from the equipment in question to the dedicated performance model; this CLI model communicating with the dedicated performance model according to said specific protocol.