In order to realize high-quality and business-oriented communication servic
es in a mobile networking environment, bandwidth scalability, QoS assurance
and flexible reconfigurability are the most important requirements to the
core network infrastructure nodes in future IMT2000 networks. This paper di
scusses these requirements while illustrating the future mobile networking
scenes, and then introduces a prototype system of a mobile packet switching
node which employs a multi-processor architecture to implement mobile prot
ocol processing functions with a throughput of 300Mbit/sec.