This Recommendation is intended to support and define the role of network management in IP-based telecommunications networks. IP-basednetworks generally make use of various telecommunications technologies that support a rangeof multimedia servicessuch as voice, data, still image and video. In this Recommendation, such IP-based networks are referred to as converged networks. Addressed here are the Network Management (NM) goals, principles and functions intended for use with IP-based equipment operating in such converged networks or in dedicated IP networks.