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the difference between [TCP Retransmission] and [TCP Out-Of-Order].

asked 2019-01-17 10:27:20 +0000

ukiraika gravatar image

updated 2019-01-18 05:42:38 +0000

Please tell me the difference between [TCP Retransmission] and [TCP Out-Of-Order]. This is displayed on the [info] Both will appear as retransmitted packets, please tell me how Wireshark is judging.

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answered 2019-01-19 10:46:27 +0000

Jasper gravatar image

The primary difference is that out-of-orders arrive a lot faster than a retransmission, and retransmissions are also usually requested via triple duplicate ACK or Selective ACK. Wireshark tries to determine the initial round trip time and measures if a packet arrived faster than the sender could have know that it got lost.

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Asked: 2019-01-17 10:27:20 +0000

Seen: 1,350 times

Last updated: Jan 19 '19