INVALID state indicates that the packet is not associated with any known stream or connection and it may contain faulty data or headers.
INVALID状态指出该信息包与任何已知的流或连接都不相关联,它可能包含错误的数据或头。
Because the entire data stream for the file arrives in a single packet.
因为这个文件的数据流是在一个单独的包内到达。
Notice that both datagram (packet) and stream connections are supported.
注意同时提供了对数据包(packet)和流连接的支持。
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