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UDP最大数据段长度是多少?

谁知道告诉下..谢谢..要准确答案..

2025-04-04 03:46:24

推荐回答（2个）

回答1：

从UDP的封装格式来看。其中源端口和目的端口各占16位。数据报长度位占16位。
此数据报长度表示的为数据报长度，包含首部和数据区，以字节为单位，最小值为8，即没有数据时的长度。
2^16=65536.所以，UDO最大的数据报长度为65536字节。
希望能帮助你。。。

回答2：

UDP不提供分段重组服务，最大数据包65535，包头20，余下为内容。

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