And putting entities' behavior in services or the view layer scatters the entities' core logic throughout the application, causing maintenance problems.
另外，把实体的行为放在服务或视图层中，会导致实体的核心逻辑分散在应用程序中的许多地方，导致维护问题。
This behavior requires that message-oriented protocols operating over TCP provide data-buffer and message framing within their application layer (a potentially complex task).
这种行为需要在TCP之上进行操作的面向消息的协议可以在应用层中提供数据缓冲和消息分帧机制(这可能是一项复杂的任务)。
The identification method based on P2P traffic transport layer behavior has good scalability, because it is independent of the signature strings of P2P application.
基于传输层行为的P2P流量识别方法不依赖P2P应用的特征字段，具有良好的可扩展性。
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