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Measure packet delay RTP

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Can we measure Delay in RTP Stream with Wireshark? I know that we have Delta and Difference but its not directly Delay. http://wiki.wireshark.org/RTP_statistics In that link, someone have directly Delay in his stream, there is some way to do that? If not, can we use Delay or Diffrence to get a Delay?

Thanks for answers.

asked 07 Nov '14, 11:54

LordGruch's gravatar image

LordGruch
11112
accept rate: 0%

can you please add your definition of Delay

(11 Nov '14, 14:34) Kurt Knochner ♦

One Answer:

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You can't directly measure delay for something like RTP, has no acknowledgement protocol, when you are only capturing data at one point. Have a look at the discusson on this thread - https://ask.wireshark.org/questions/1620/packet-delay

answered 11 Nov '14, 18:38

martyvis's gravatar image

martyvis
8911525
accept rate: 7%

1

There is always the round-trip propagation delay if the RTCP reports and filled in correctly and captured. The RTCP dissector supports this, see http://wiki.wireshark.org/RTCP.

Bear in mind that this is relative to the capture point, and that using (half) this figure assumes that that both directions have roughly the same delay, and that RTCP frames are treated throughout the network the same as RTP frames.

(12 Nov '14, 02:20) MartinM