Ask Your Question
0

How Wireshark Calculate RTT

asked 2024-04-30 16:07:23 +0000

vemund gravatar image

Looking into network delays. Im plotting RTT for a TCP videostream. The graph shows spike for some packets, but i cannot find out how the RTT for these packets are calculated as i cant find the ACK for these packets.

So my question is how does wireshark calculate RTT when there apparently aren't any ACK to base the RTT caclulatation on?

edit retag flag offensive close merge delete

1 Answer

Sort by » oldest newest most voted
1

answered 2024-04-30 17:34:55 +0000

Chuckc gravatar image

updated 2024-04-30 17:35:38 +0000

Current issue: 10722: Round-Trip Time Graph plots incorrect values

Something close can be done with Statistics -> I/O Graphs plotting tcp.analysis.ack_rtt and filtering based on src/dst addresses.
(RTT time from WSUG: Figure 7.7. “TCP Analysis” packet detail items)

image description

edit flag offensive delete link more

Comments

Thank you for answer! Just found these links, stating that my issue is a known error in Wireshark.

https://gitlab.com/wireshark/wireshar...https://osqa-ask.wireshark.org/questi...

vemund gravatar imagevemund ( 2024-04-30 17:38:49 +0000 )edit

Your Answer

Please start posting anonymously - your entry will be published after you log in or create a new account.

Add Answer

Question Tools

1 follower

Stats

Asked: 2024-04-30 16:07:23 +0000

Seen: 283 times

Last updated: Apr 30