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论述了一种能提高ＡＴＭ（异步转移模式）交换系统呼叫处理能力的方法，即在交换系统中把呼叫处理能力分布到各接口模块，从而克服了集中式呼叫处理交换机中的瓶颈现象。根据呼叫处理在接口模块中的分布程度，又分为分布信令呼叫处理、分布呼叫控制处理和分布路由呼叫处理３种结构。 相似文献
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INTRODUCTION The Transport Control Protocol (TCP) pro-vides end-to-end reliable connection-oriented ser-vice over heterogeneous networks. After the fa-mous 1986 network collapse due to network con-gestion, TCP congestion control mechanisms wereintroduced in TCP protocol. The congestion controlmechanisms in early TCP, known as TCP-Tahoe,are discussed in Congestion Avoidance and Control(Jacobson, 1988). Tahoe introduces two basicmechanisms: slow start and congestion avoidance… 相似文献
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With the evolution of network technologies,the deficiencies of TCP protocol are becoming more and more distinct. The new TCP implementation,called Receiver Advertisement Based TCP(TCP-Rab)proposed here to eliminate these deficiencies,adopts two basic mechanisms:(1)Bandwidth Estimation and(2)Immediate Recovery. Bandwidth estimation is carried out at the receiver,and the result is sent back to the sender via the acknowledgments. Immediate Recovery guarantees high performance even in lossy link. Rab can distinguish the reason for packet loss,and thus adopt appropriate recovery strategy. For loss by network congestion,it will back off its congestion window,and for loss by link errors,it will recover the congestion window immediately. Simulations indicated that Rah has superiority over other TCP implementations. 相似文献
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分析了ATM论坛制定的UNI31协议规范,包括它支持的基本功能、信令消息和消息格式以及呼叫连接控制进程,然后论述了以UNI31为基础的消息层软件的实现 相似文献
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