ATM用户终端设备信令系统协议分析及软件

Protocol analysis and software implementation of thesignalling system of the ATM terminal equipment

从实现的角度分析了ＡＴＭ终端设备信令系统信令消息层和信令适配层的主要内容，提出了用软件实现它们的具体方法．该方法具有可用任何单进程操作系统实现多层协议，只需一个定时中断和基本的通信中断，多层协议实体共享缓冲池，各层协议实体间通过指针交换数据。

This paper analyses the signalling message layer and signalling adaption layer of the signalling protocols of the ATM terminal equipment from the viewpoint of implementation, and summarizes their implementation by the authors. Features of the implementation are: single process operation system implementation of multilayer protocols, only one clock interrupt and communication interrupt, a shared buffer pool for multilayer protocol entities, and data exchange among protocol entities through pointers with no data copying.