由于MANET的全动态特性，服务的自动发现在MANET中显得至关重要，它是MANET协议栈中的一个不可或缺的组成部分。
Due to its dynamic property, automatic service discovery is obviously crucial for MANET, and become an indispensable component in protocol stack of MANET.
ONVIF规范定义了一个共同的协议之间的信息交换网络视频设备包括自动设备发现，视频和情报的元数据。
The ONVIF specification defines a common protocol for the exchange of information between network video devices including automatic device discovery, video streaming and intelligence metadata.
分析了E - NNI路由、信令和保护恢复及自动发现的协议进展、需求、框架和实现方式。
Then the requirements of E-NNI routing, signaling, restoration and discovery are analyzed respectively and the realization methods are given.
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