Disclosed in the embodiments of the present invention are a method for transmission and reception of traffic packets, a device, and a
system, applying to the technical field of network communications. The method, device and
system resolve problems in current methods to decrease sensitive traffic packet
jitter which significantly decreases the
broadband utilization rate of communication links. In the embodiment of the present invention, as a result of
cutting non-sensitive traffic packets into sections before transmitting them, the method can combine non-sensitive traffic packets and sensitive traffic packets before transmission, thereby decreasing
jitter in sensitive traffic packets; when
cutting the non-sensitive traffic packets into sections and before starting the section
processing, first a modulation mode of the
communication link is obtained, said modulation mode being determined by an
adaptive coding and modulation engine and reflecting a current
packet transmission quality, then the current section length is calculated and obtained in order to guarantee the maximization of transmission of traffic packets. Therefore, the
bandwidth utilization rate of the
communication link is increased while ensuring that sensitive traffic packet
jitter is reduced.