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Packet Loss Question

asked 2023-03-15 13:33:18 +0000

cpocket gravatar image

Hello, I have an issue with slow FTP transfer in one direction so I captured on both ends. The sending server shows total packets 120k while receiver shows 150k total packets. Those numbers come from the TCP stream so am I doing something wrong or how can there be more on the receiving side? I did add the filter tcp.analysis.lost_segment to each capture and the sender shows 25 packets while receiver shows 1700.


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answered 2023-03-15 22:12:23 +0000

SYN-bit gravatar image
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To further Sake's answer: Are the packets in each capture different sizes? The 120K packets may be larger than 1460 (due to TSO) whereas the 150K packets might all be ~1460 bytes because they represent what actually went on the wire.

Put another way, is the total payload in all packets the same for both ends?

Philst gravatar imagePhilst ( 2023-03-21 01:38:41 +0000 )edit

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Asked: 2023-03-15 13:33:18 +0000

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Last updated: Mar 15 '23