GY/T 200.1-2004Specification for HFC data transmission system Part 1: General specification (English PDF)

Foreword

GY/T 200 "Technical Specifications for HFC Network Data Transmission System" is divided into two parts.

-Part 1. General requirements;

-Part 2. RF interface and protocol.

This part is the first part of GY/T 200.

This section is under the jurisdiction of the National Radio and Television Standardization Technical Committee.

Drafting units of this section. Standardization Planning Research Institute of State Administration of Radio, Film and Television, State Administration of Radio, Film and Television Radio, Film and Television Information Network Center, Gehua Cable Network Co., Ltd., Qingdao Cable TV Station, Huawei Technologies, Chengdu Kangte Electronic High-tech Company, Institute of Acoustics, Chinese Academy of Sciences, Shanghai Broadcasting Corporation, Shenzhen Aolong Broadband Technology Co., Ltd., ZTE Corporation Division, PCCW Hong Kong, Shenzhen Dike Information Technology Company, Guangdong Central Network Company, Skyworth Digital Technology Co., Ltd.

Introduction

This part of the standard describes the basic composition of the HFC network data transmission system, and specifies the basic requirements of the HFC network data transmission system and overall requirements for system management, user management, compatibility and scalability. On the basis of meeting the requirements of this section, a variety of Technical method To realize HFC network data transmission system, detailed technical specifications of system interface and protocol and system security are separately stipulated.

Technical specifications of HFC network data transmission system Part 1. General requirements

1 Scope

This section describes the basic composition of the HFC network data transmission system, and specifies the basic requirements for the system as well as the system management and compatibility.

And scalability requirements.

This section applies to HFC network data two-way transmission system.

2 Normative references

The clauses in the following documents are incorporated into this clause by reference in this section. For dated references, all subsequent Neither amendments (excluding errata) or revisions are applicable to this section; however, parties who have reached an agreement under this section are encouraged to study is the latest version of these files available? For undated references, the latest edition applies to this section.

GY/T 106-1999 Technical Specification for Cable Television Broadcasting System GY/T 180-2001 Technical Specifications of Physical Transmission Channels for HFC Networks YD/T 1076-2000 access network technology requirements-a cable modem (CM) IEEE 802.3 Information technology Telecommunications and information exchange between systems – Local and metropolitan area networks – Part 3. Carrier sense multiple access with collision detection (CSMA/CD) access method and physical sublayer specifications RFC 0791 Internet Protocol

3 Acronyms

The following abbreviations apply to this section.

CM Cable Modem

CMTS Cable Modem Termination System DHCP Dynamic Host Configuration Protocol NSI Network Side Interface RFI Radio Frequency Interface SNMP Simple Network Management Protocol TFTP Trivial File-Transfer Protocol ToD Time of Date (server) UNI User Network Interface

4 HFC network data transmission system description and basic structure

5 Basic technical requirements of HFC network data transmission system

6 System management

HFC network data transmission system management should include CM startup configuration management, CM device management, and CMTS device management. System Management for server-client mode.

The CM startup configuration management server is responsible for configuring the initialization parameters of the CM. The CM startup configuration management server is configured by the DHCP server and the ToD server.

Server, TFTP server.

The CM device management server is responsible for performing SNMP-based network management on the CM, completing parameter configuration, status query, performance statistics, and faults Management functions.

The CMTS device management server is responsible for performing SNMP-based network management on the CMTS, completing parameter configuration, status query, performance statistics, Fault management functions.

7 Compatibility under multi-service conditions

CMTS and CM should be compatible with other business systems on the HFC network. Especially when its spectrum is occupied by any combination of TV and other signals at the same time, CMTS and CM should work well together in the spectrum allocated for them.

CMTS and CM shall not cause harmful interference to any other services in the HFC network.

Since the HFC network data transmission system is a media-sharing, point-to-multipoint system, consideration should be given to the potential impact of failure and fault isolation on a large number of users of data and other services.

Figure 1 HFC network data transmission system structure

8 Scalability

On the basis of meeting this section, support new technical solutions compatible with this section to implement HFC network data transmission system.