This is our old Q&A Site. Please post any new questions and answers at ask.wireshark.org.

I'm trying to plot Bytes in flight using the I/O graph but i'm not sure what i'm getting is correct. How does wireshark calculates bytes in flight ? How come when I plot tcp.analysis.bytes_in_flight and ip.dst == < receiver ip>&&tcp.window_size_value I get the same graph?

asked 24 Nov '11, 22:47

ddayan's gravatar image

ddayan
41151720
accept rate: 0%


I assume you are using the "advanced" graphs to plot the mentioned fields? If not, the IO graph by default will just count packets in each interval that match the given filters. So the values of those fields will not be used in the graph, just amount of packtes.

If you do use the "advanced" setting in the graphs, which aggregator function are you using? MAX(*)? If so, then plotting the (maximum) value of tcp.analysis.butes_in_fligt will indeed be the same as the (maximum) tcp.window_size value if the sender is filling the pipe completely (and only if you capture on the sender's side of the pipe).

permanent link

answered 25 Nov '11, 14:41

SYN-bit's gravatar image

SYN-bit ♦♦
17.1k957245
accept rate: 20%

Your answer
toggle preview

Follow this question

By Email:

Once you sign in you will be able to subscribe for any updates here

By RSS:

Answers

Answers and Comments

Markdown Basics

  • *italic* or _italic_
  • **bold** or __bold__
  • link:[text](http://url.com/ "title")
  • image?![alt text](/path/img.jpg "title")
  • numbered list: 1. Foo 2. Bar
  • to add a line break simply add two spaces to where you would like the new line to be.
  • basic HTML tags are also supported

Question tags:

×752
×72

question asked: 24 Nov '11, 22:47

question was seen: 9,846 times

last updated: 25 Nov '11, 14:41

p​o​w​e​r​e​d by O​S​Q​A