Abstract: In view of the transport layer transport protocol TCP inefficiency and unreliability of the UDP, this paper proposes a new type of wireless multi-frame RUDP, at the same time， a generalized stochastic and colored Petri net (GSCPN) is proposed, and makes use of GSCPN modelling and analysing for RUDP, a better for future research RUDP protocol provides a reference model, with a very good theoretical value.

Key words: stochastic and colored Petri net, RUDP protocol, modeling