Method and device for realizing data package transmission on synchronous digital system

Abstract

A device for transmitting data packets on a synchronous digital system belongs to the communication category, and is composed of a POS-PHY Level2 and MII interface conversion module, and an Ethernet interface network processor module; the interface conversion module is connected to the physical layer through the POS-PHY Level2 interface, Connect with the Ethernet interface network processor through the MII interface. The method is: 1. The interface conversion module converts the PPP data frame transmitted from the POS physical layer chip into an Ethernet data frame; 2. The Ethernet interface network processor processes the Ethernet frame transmitted from the interface conversion module and divides it into a frame. According to the address information of the processed packet, the cell header is regenerated and sent to the switching network respectively; 3. The Ethernet interface network processor reassembles the cell flow from the switching network into packets, and after processing 4. The interface conversion module converts the Ethernet data packet into a PPP data frame and sends it to the POS physical layer.

Description

technical field [0001] The invention belongs to methods and devices of network processors in communication technology, in particular to interface methods and devices for broadband data access products. Background technique [0002] Since the 1990s, the Internet has achieved tremendous development, and the number of users has grown explosively. Since 1989, the number of hosts on the Internet has doubled approximately every 56 weeks. In the past three years, the number of WEB servers on the Internet has almost doubled every 23 weeks, and this growth is exponentially doubling. With the advancement of communication technology and the drive of market demand, the voice services transmitted by the traditional telephone network and the video services transmitted by the cable TV network are gradually transferred to the computer network in the form of packets, such as IP Phone, VOD and so on. With the sharp increase in the number of users, the bottleneck of bandwidth is becoming mor...

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Problems solved by technology

This makes it difficult to implement POS applications with multiple products

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