A packet encapsulation scheme for multiplexing application sessions—Lightweight
IP Encapsulation (LIPE)—is described. An LIPE packet comprises at least one
multiplexing header (NH) and associated multimedia data packet (MDP). The LIPE
packet uses UDP/IP as transport. An MH field further comprises a 16-bit a user
identifier (UID) field, an 11 bit length indicator (LNG) field, a 1 bit "more"
(M) field and an optional payload type/class of service (PT/CoS) field comprising
8 bits.