How does Wireshark plot missing tcp.analysis.ack_rtt values?

asked 2018-10-17 13:05:44 +0000

jackpcraig gravatar image

updated 2018-10-17 17:29:12 +0000

cmaynard gravatar image

Hi all,

I am just wondering how Wireshark plots tcp.analysis.ack_rtt values for the RTT graph when they don't appear to be in the column.

I have attached an image of the Wireshark plot and my own plot, you can see when I am plotting there appears to be information missing which I have got from the Wireshark tcp.analysis.ack_rtt column. Could this be something to do with the ERTT where the ERTT = ((1-Alpha)*Current RTT)+(Alpha * next measured RTT)?

https://imgur.com/a/kmuGule

Wireshark plot: image description

My own plot: image description

Any help would be much appreciated

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