Abstract: Based on a new architecture called SUPA (Single physical layer User-data transfer & switching Platform Architecture) and the virtual tunnel handover problem which is caused by mobile node when Internet interconnected with SUPA network, this paper proposed two basic virtual tunnel handover methods and a mixed virtual tunnel handover method, then analyzed characteristics of each handover methods. Simulation results show that the mixed method is better than other basic methods.

Key words: SUPANET, Virtual tunnel, Handover method