Management information (CDMM) packaging method based on IEEE (Institute of Electrical and Electronic Engineers) OAM (Operation Administration and Maintenance), C-DOCSIS (Data Over Cable Service Interface Specification) radio frequency interface module and system control module

Abstract

Proposed is an IEEE OAM-based management message (CDMM) encapsulation method, which comprises: step 1: when the length of a CDMM is greater than the maximum transport length of the transport layer, conducting frame fragmentation on the CDMM, each fragment being a protocol data unit (PDU) of the CDMM, and the CDMM comprising a first PDU and following PDUs; and step 2: encapsulating in an IEEE OAM-based transport layer the CDMM on which the frame fragmentation is conducted, the first PDU comprising a PDU version number field used for identifying a reserved field of a radio-frequency output port, an opcode field of the CDMM message, a session ID field of the CDMM, and a data field related to an opcode, and a CDMM message frame which is encapsulated in the IEEE OAM-based transport layer comprising a transport layer protocol head and a message content. A CDMM which is encapsulated using the present invention can achieve standard interoperability-based distributed configuration of a system control module and a radio-frequency interface module, and can exchange configuration, status and management messages between the system control module and the radio-frequency interface module.

Description

technical field [0001] The invention relates to the field of communication, in particular to a method for encapsulating management information (CDMM) based on IEEE OAM, a radio frequency interface module and a system control module of C-DOCSIS in a system based on coaxial cable broadband access. Background technique [0002] The coaxial cable-based broadband access system was developed by the State Administration of Radio, Film and Television of China to solve the problems of domestic next-generation broadband access technology and bidirectional network transformation, based on DOCSIS 3.0 standard technology, combined with domestic passive optical network (PON), hybrid optical copper network ( HFC), the actual situation of the edge broadband access network, and the Chinese DOCSIS technical standard formulated. The coaxial cable-based broadband access system includes a radio frequency interface module, a classification and forwarding module, and a system control module. The s...

AI Technical Summary

Problems solved by technology

[0003] At present, the existing DOCSIS system design does not provide this standard interface, so it cannot support the distributed implementation of the system control module and the radio frequency interface module based on standard interoperability

At the same time, how to realize the information exchange configuration and state management between the DOCSIS system control module and the radio frequency interface module, and how to classify and forward service flows and map priority messages to the upper-layer convergence network (especially the passive optical network PON network) Control and management are still blank in the current traditional DOCSIS system, and there are no related applications and specifications, so it is difficult to solve technical problems such as information exchange, configuration and management of DOCSIS service flows on the existing PON convergence network

Images