Real-time traffic reporting method, media endpoint and system

The invention discloses a real-time traffic reporting method, a media endpoint and a real-time traffic reporting system. The method comprises that: when establishing a multimedia session, the link layer discovery protocol media endpoint discovery (LLDPMED) media endpoint updates the total code rate of each media stream input port used by the session according to the code rate of each media stream input port used by the session, carries the latest total code rate of own initiated media stream input ports into an expanded type length value (TLV) after the establishment of the multimedia session is finished and a media channel is enabled, and transmits the expanded TLV to network access equipment; and the network access equipment receives the expanded TLV, and performs bandwidth control and quality of service (QoS) guarantee processing according to the total code rate of each media stream input port in the expanded TLV. By the real-time traffic reporting method, the media endpoint and the real-time traffic reporting system, the accurate bandwidth control and QoS guarantee processing of the network access equipment is realized.