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networking - TCP/IP 校验和有多稳健

转载 作者:可可西里 更新时间:2023-11-01 02:47:31 25 4
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与 CRC32 或类似的东西相比,TCP/IP 校验和有多稳健。它们只是 1B 位补码还是更复杂(但更慢)的东西?

最佳答案

http://en.wikipedia.org/wiki/Transmission_Control_Protocol#Checksum_computation

The TCP checksum is a weak check by modern standards. Data Link Layers with high bit error rates may require additional link error correction/detection capabilities. The weak checksum is partially compensated for by the common use of a CRC or better integrity check at layer 2, below both TCP and IP, such as is used in PPP or the Ethernet frame.

关于networking - TCP/IP 校验和有多稳健,我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/8882455/

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