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UDP分片与丢包,UDP真的比TCP高效吗?
每个 UDP 报文分为 UDP 报头和 UDP 数据区两部分。报头由 4 个 16 位长(2 字节)字段组成,分别说明该报文的源端口、目的端口、报文长度和校验值。 UDP 报文格式如图所示。 每个 UDP socket 都有一个接收缓冲区,****没有发送缓冲区****,从概念上来说就是只要有 ...
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