RTP stream packet loss

asked 2019-02-12 16:57:56 +0000


I have a wireshark from one device thats connected to another. One wireshark on both devices. The RTP stream analysis shows 2.5% packet loss but if I count the packets they are identical. Where is wireshark finding "packet loss" if the packets send and received are identical between these two devices?

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Are there any jumps in the sequence numbering?

Jaap gravatar imageJaap ( 2019-02-12 18:10:43 +0000 )edit

In the RTP stream analysis, the line representing every packet whose RTP sequence number is not 1 higher than the one of the previous packet has a red background and a remark "wrong sequence number". Can you see such lines?

Wireshark does not compare packets captured at two distinct points in the network as there is no method how it could always reliably tell them from one another in all scenarios, and no functionality allowing you to specify such criteria for a particular scenario has been implemented. So packet loss is only visualized for protocols which use some kind of sequence numbers, such as, and not limited to, RTP and TCP.

sindy gravatar imagesindy ( 2019-02-13 14:11:39 +0000 )edit