This document contains Minimum Aviation System Performance Standards (MASPS) for Aeronautical Telecommunications Network, Internet Protocol Suite (ATN/IPS). ATN/IPS is fully defined operationally in the Operational Services and Environment Definition (OSED) which is included as Annex A. This IPS MASPS specifies system characteristics, IPS is composed of several individual components, which are implemented in the aircraft as well as part of the ground infrastructure. This MASPS should be useful to designers, manufacturers, installers, service providers and users of systems. Compliance with this standard is recommended as one means of ensuring that the IPS system and each of its subsystem will perform its intended function(s) satisfactorily under all conditions normally encountered in routine aeronautical operations for the environments intended. One potential use of this MASPS is to support early ATN/IPS development and prototyping.