Abstract: The at least one distributed virtual CPE comprising at least one IP Edge node, at least one Carrier Grade NAT node, at least one User Configuration Server and at least one Line Configuration Server, the method creating said at least one distributed virtual CPE upon the reception of traffic from a home in the access line corresponding to said home; modifying said at least one distributed virtual CPE upon a customer request; removing said at least one distributed virtual CPE, upon a traffic inactivity timeout detected in said access line or upon an administrative command; and associating a line identifier and a customer identifier to said at least one distributed virtual CPE, wherein said association, termed vCPE context, is known partially or totally by the at least one IP Edge node, the at least one Carrier Grade NAT, the at least one User Configuration Server and the at least one Line Configuration Server, and is kept active during the whole life cycle of said distributed virtual CPE from the creation to the

Abstract: The at least one distributed virtual CPE comprising at least one IP Edge node, at least one Carrier Grade NAT node, at least one User Configuration Server and at least one Line Configuration Server, the method creating said at least one distributed virtual CPE upon the reception of traffic from a home in the access line corresponding to said home; modifying said at least one distributed virtual CPE upon a customer request; removing said at least one distributed virtual CPE, upon a traffic inactivity timeout detected in said access line or upon an administrative command; and associating a line identifier and a customer identifier to said at least one distributed virtual CPE, wherein said association, termed vCPE context, is known partially or totally by the at least one IP Edge node, the at least one Carrier Grade NAT, the at least one User Configuration Server and the at least one Line Configuration Server, and is kept active during the whole life cycle of said distributed virtual CPE from the creation to the

Abstract: A method to measure quality of experience of a video service. In the method of the invention said video service is an over-the-top video streaming provided to a user application under request by means of a network. It is characterised in that it comprises calculating a Key Performance Indicator, or KPI, from measurable network parameters of said network for each video provided by said video service, assigning a Key Quality Indicator, or KQI, to each KPI by means of analytical models and calculating a global KQI function of a set of KQIs.

Abstract: In the method of the invention said network traffic is monitored by means of descriptive metadata, said descriptive metadata is outputted by a Descriptive Metadata Interface of a Deep Packet Inspection, or DPI, deployment of a network and said descriptive metadata contains verbatim packet fields and accounting information. It is characterised in that it comprises correlating at least part of said descriptive metadata with information included in said descriptive metadata, centralized signatures and external data sources in order to enrich said descriptive metadata.

Abstract: A method for composing configuration changes to be applied to a network element (41) in a distributed way. The method comprises the steps of: at a first server (42), generating a configuration file and signaling the content of said configuration file to the network element (41); according to said content of said configuration file, contacting by said network element (41) a plurality of supporting servers (43 44 45) and downloading from each of said supporting servers (43 44 45) partial pieces of the configuration changes to be applied to the network element (41); combining said partial pieces of configuration changes at said network element (41), thus obtaining a set of resulting configuration changes; applying at said network element (41) said set of resulting configuration changes.

Abstract: The method comprises using a routing protocol to perform the information exchange between network devices. Said information exchange comprises signalling those network resources which are free or unused and, a single network device, configuring said network resources that are other than network routes. In a preferred embodiment, said routing protocol is the Border Gateway Protocol and the method of the invention further provides a new type of Network Reachability Information in order to perform said configuration and signalling of the network resources by means of said routing protocol.