Received packet sorting and null packet processing system

Abstract

The invention relates to the field of network communication, in particular to a received packet sorting and null packet processing system. The system comprises a write-in control module, a read-out control module and a jiggle cache module, wherein the input end of the write-in control module is connected with a data receiving port, the output end of the write-in control module is connected with the jiggle cache module, and the jiggle cache module is connected with the read-out control module; the write-in control module is used for controlling the write-in of network data; the jiggle cache module is used for storing the network data; the read-out control module is used for controlling the read-out of the network data in the jiggle cache module. According to the system, a method for directly storing packets in corresponding positions according to serial numbers is adopted, so that the sorting efficiency is relatively high; meanwhile, the system has the functions of losing the packets, processing null packets and counting.

Description

technical field [0001] The invention relates to the field of network communication, in particular to a system for sorting received packets and processing invalid packets. Background technique [0002] like figure 1 As shown, CES (Circuit Emulation Service) circuit emulation provides a smooth transition solution from the circuit switching network to the packet switching network. The PE device at the sending end encapsulates the TDM data in real time, and transmits the TDM data to the receiving end through the packet network. At the receiving end, the PE The data buffer queue at the receiving end of the device recovers the synchronous clock, and the synchronous clock decapsulates the data frame and reassembles it into a TDM data stream; however, because the TDM network is a synchronous network, and the packet network is a typical asynchronous network, TDM data is transmitted through the packet network to At the receiving end, it will cause its own clock information to be lost...

AI Technical Summary

Problems solved by technology

[0002] such as As shown in Figure 1, CES (Circuit Emulation Service) circuit emulation provides a smooth transition solution from the circuit switching network to the packet switching network. The PE device at the sending end encapsulates the TDM data in real time, and transmits it to the receiver through the packet network. At the receiving end, the data buffer queue of the PE device at the receiving end restores the synchronous clock, and the synchronous clock decapsulates the data frame and reassembles it into a TDM data stream; but because the TDM network is a synchronous network, the packet network is a typical asynchronous network, and the TDM data It will cause the loss of its own clock information when it is transmitted to the receiving end through the packet network. Therefore, the clock recovery technology is very important when recovering TDM data at the receiving end. The recovery of data clock information directly affects the quality of data transmission. The current clock recovery technology There are problems such as long recovery time and poor recovery accuracy

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