GB/T 26243.1-2010 in English
SUPERSEDEDInformation technology—Relayed Multicast Control Protocol(RMCP)—Part 1:Framework
- Issued on:2011-01-14
- Implemented on:2011-05-01
- File Format:PDF
- Delivery:Via email within 1~3 business days
$272.00
| Standard No: | GB/T 26243.1-2010 |
| Document status: | SUPERSEDED |
| Superseded by: |
GB/T 26243.1-2026 Information technology—Relayed Multicast Control Protocol(RMCP)—Part 1:Framework
|
| Superseded on: | 2026-09-01 |
| Title in English: | Information technology—Relayed Multicast Control Protocol(RMCP)—Part 1:Framework |
| Title in Chinese: | 信息技术 中继组播控制协议（RMCP） 第1部分：框架 |
| Language: | English |
| File Format: | Electronic (PDF) |
| Delivery: | Via email within 1~3 business days |
| Issued on: | 2011-01-14 |
| Implemented on: | 2011-05-01 |
| ICS Classification: | 33.040.40-Data communication networks |
| Chinese Classification: | L78-Data information |
| Professional Classification: | GB-National Standard |
| Related Keywords: | information technology relayed multicast control protocol
relay multicast control protocol reliable multicast technology reliable multicast transport protocol ietf rfc multicast solution |
| Related Topics: | Laboratory Protocol Framework
relay Technology Transfer Center Agreement GB/T 26243.1 GB/T 26243.1-2010 |
《GB/T 26243.1-2010信息技术 中继组播控制协议（RMCP） 第1部分：框架》由TC28（全国信息技术标准化技术委员会）归口，主管部门为国家标准化管理委员会。
Introduction
Standard Background and Technology Evolution
GB/T 26243.1-2010 is equivalent to the ISO/IEC 16512-1:2005 international standard. In view of the current situation of insufficient IP multicast deployment, it proposes the Relay Multicast Control Protocol (RMCP) as an application layer multicast solution.
- High IP multicast deployment cost: Difficulties in transforming global Internet infrastructure
- Low unicast replication efficiency: Service quality drops sharply with the increase in the number of users
- Immature reliable multicast technology: scalability and congestion control have defects
Core Concepts and Terminology
| Terms | Abbreviations | Definition |
|---|---|---|
| Multicast Agent | MA | Intermediate node that relays multicast data |
| Sender Multicast Agent | SMA | MA directly connected to the sender |
| Receiver Multicast Agent | RMA | MA not connected to the sender |
| Session Manager | SM | Central entity that manages session relationships and topology |
Protocol Architecture and Functional Modules
Control Plane Architecture
RMCP adopts a layered design, mainly including:
- Session Management Layer: handles session initialization/release, member management
- Proxy Control Layer: implements path establishment and maintenance between MAs
- Data Transmission Layer: supports multiple transmission protocols such as TCP/UDP/SCTP
Comparison of Typical Application Scenarios
| Service Type | Communication Model | Typical Application | QoS Requirements |
|---|---|---|---|
| Real-time Simplex | Unidirectional Tree Type | Internet TV Live Broadcast | Low Latency |
| Reliable Simplex | Unidirectional Tree Type | Batch Software Update | High Reliability |
| N-Worker Interaction | Shared Tree Type | Video Conferencing System | Two-way Real-time |
Implementation Recommendations and Notes
Deployment Recommendations
- Network Planning: It is recommended to deploy in a network environment where the RTT between MA nodes is ≤50ms
- Agent Selection: SMA should be deployed in the same broadcast domain as the sender
- Session Scale: A single SM is recommended to manage no more than 500 MA nodes
Compatibility Description
The standard explicitly requires collaboration with the following protocols:
- ITU-T X.601 Multi-Peer Communications Framework
- ISO/IEC 14476 Reliable Multicast Transport Protocol
- IETF RFC 2960 Stream Control Transmission Protocol (SCTP)
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