A METHOD AND A DEVICE FOR ENCAPSULATING THE INFORMATION TWICE INSIDE THE COMMUNICATION DEVICE

摘要

The present invention mainly relates to a method and an apparatus for packaging management and control information in a network communication apparatus. In the present invention, through initializing the FPGA, its two ends provide a standard MII interface and a standard UTOPIA interface respectively, thereby achieving the interface connection between an ATM switching part and an ARM processor; the AAL5PDU data packet is twice packaged in Ethernet format, namely, marking the AAL5 PDU data packets using the VLAN label in an Ethernet frame; and communicating the in-band network management data to a master control CPU through the MII interface. The present invention adopts an ARM processor of high performance and low cost as a management core, only little necessary interface conversion is conducted between a switching chip and the processor, and most of protocol processing will be undertaken by the CPU, thereby the present invention has advantages such as low cost, high efficiency, fine flexibility and easy realization.