Weaknesses of ring topology are often not immediately visible as the actual devices are not usually shown in the illustrations.
当主设备没有在下图中显示时，环形拓扑的缺陷不能立即显现出来。
This paper proposes an effective improved ring topology for the real-time network with high communication reliability and security.
在通信可靠性和安全性要求较高的实时网络中，建议采用改进的环形拓扑。
This paper introduces the characters of resilient packet ring (RPR) technologies, and the advantages of RPR comparing to SDH/SONET and Ethernet when provides data services in ring topology.
介绍了弹性分组环（RPR）技术的特征，将其与SDH/SONET、以太网技术作了对比，以体现其在环型拓扑结构上支持数据业务的优势。
A real-time Ultrahigh-speed optical fiber network design concept was proposed for fly-by-light aircraft in this paper. The advantages of the star and ring topology structure were integrated.
综合星型及环形拓扑结构的优点，提出一种具有超高速实时光纤网络结构的飞行器光传操纵设计方案。
This paper studied the protection mechanism for virtual ring in mesh topology, and analyzed a construction algorithm for a virtual ring based on spanning tree.
文章对网状拓扑中的虚环保护机制进行了研究，并对一种基于生成树的虚环构成算法进行了分析。
Resilient Packet Ring (RPR) is an IEEE standardized next-generation metro optical transport technology based on ring network topology .
弹性分组环（RPR）是一个由IEEE标准化的基于环网拓扑的新一代城域光传送技术。
Since optical ring is the main topology in metro ring, it is of great significance to study the MAC (media access control) protocol, which is discussed in this paper.
光环网是构建城域光网络的主要拓扑方式，因此研究城域光环网的MAC协议是十分必要的。
This paper introduces the implement methods of a high-speed optical interconnection network adapter for double token-ring network topology cluster.
介绍了一种面向机群系统双环形网络拓扑结构的高速光互联网络适配器的设计和实现方法。
Therefore, we propose a topology maintenance algorithm to reconstruct the ring-based hierarchy.
为此本文提出了重构层次环模型的拓扑结构维护算法。
The logic token transfer ring needs not to be established in advance for the TDTA. The path through which the token transfers is dynamically formed according to the network topology.
该算法无需预先建立虚拟的逻辑令牌传递环路，而是根据网络的拓扑结构，动态地形成令牌的传递路径。
The logic token transfer ring needs not to be established in advance for the TDTA. The path through which the token transfers is dynamically formed according to the network topology.
该算法无需预先建立虚拟的逻辑令牌传递环路，而是根据网络的拓扑结构，动态地形成令牌的传递路径。
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