摘要： 设计了在大规模异构网络中对不大于200 个用户数量进行可靠多播数据传输协议SRMTP。SRMTP 采用流式分趟传输模式、基于接收端的传输状态管理、发送端询问接收端应答的集中报错机制等技术，在已有可靠多播协议的基础上简化协议规程，提高了协议执行效率。在实际环境中的性能测试结果表明SRMTP 可以提供高效、可靠的多播数据传输服务。

关键词: 可靠多播；SRMTP；流式传输模式；错误恢复；反馈抑制

Abstract: In this paper, a stream-based reliable multicast transport protocol (SRMTP) is designed, which is suitable for those applications in which the number of receivers is relatively small. SRMTP provides effective one-to-many reliable data transfer service by a series of approaches, such as stream-based transfer mode by pass, receiver-initiated loss recovery mechanism, NAK aggregation. As protocol control flow is simplified,the efficiency of SRMTP is improved. The performance of SRMTP is examined in a real environment and the result shows that SRMTP can support reliable data transport in a high throughput.

Key words: Reliable multicast; SRMTP; Stream-based transfer mode; Loss recovery; Feedback suppression