Fast Ring: a distributed architecture and protocol for local area distributed processing

[1989] Proceedings. The 9th International Conference on Distributed Computing Systems Pub Date : 1989-06-05 DOI:10.1109/ICDCS.1989.37986

S. Koppolu, S. Thanawastien, R. Henry

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引用次数: 2

Abstract

A ring-based media access control protocol and architecture, Fast Ring, which combines the best features of the token ring and contention ring, is proposed. For this protocol, a free token circulates on the ring when the ring is idle. A ready station can transmit either by capturing the token or sensing the ring idle. The protocol works in such a way that the ready node which captures the free token, before or while transmitting, is able to continue transmission. All the other contending nodes have to stop their transmissions and then send the abort signal when they receive the upstream transmission. After its transmission, the successful station puts a free token on the ring and the protocol enters the token mode. It behaves like the token ring protocol until the ring becomes idle again when all the ready nodes complete their transmissions. Comparison of the performance of Fast Ring with those of contention ring, token ring, and carrier-sense multiaccess with collision detection protocols shows that the Fast Ring outperforms all these local area network protocols over the whole throughput range at all transmission rates.<>

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快速环:用于本地分布式处理的分布式体系结构和协议

结合令牌环和争用环的优点，提出了一种基于环的媒体访问控制协议和体系结构——快速环。对于该协议，当环空闲时，一个自由令牌在环上循环。就绪站可以通过捕获令牌或感知环空闲来传输。该协议以这样一种方式工作，即在传输之前或同时捕获免费令牌的就绪节点能够继续传输。所有其他竞争节点必须停止它们的传输，然后在接收到上游传输时发送中止信号。传输成功后，在环上放置一个免费令牌，协议进入令牌模式。它的行为类似于令牌环协议，直到所有就绪节点完成其传输后，环再次空闲。将Fast Ring与竞争环、令牌环和带冲突检测协议的载波感知多址的性能进行比较，结果表明Fast Ring在所有传输速率下的整个吞吐量范围内都优于所有这些局域网协议。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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[1989] Proceedings. The 9th International Conference on Distributed Computing Systems

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