Clustering technologies often make use of a fast communication protocol, such as User Datagram protocol (UDP) or Multicast protocols.
集群技术通常利用快速通信协议，比如用户数据报协议(user Datagram Protocol, UDP)或多播协议。
Lack of context or state information makes it impossible to use packet - filters for datagram-based protocols such as File Transfer protocol.
缺乏上下文或国家信息使之不能把包过滤用于数据包为基础的协议，如文件传送协议。
Lack of context or state information makes it impossible to use packet-filters for datagram-based protocols such as File Transfer protocol.
缺乏上下文或国家信息使之不能把包过滤用于数据包为基础的协议，如文件传送协议。
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