Hi, I have a Wireshark RTP trace, taken between 2 telecomm nodes A and B. Currently I am observing packet loss on A( as per statistics in A node) upon taking the interface traces,I could see Wrong sequence number on each of the streams between B to A(where B is source and A is Destination). So my queries are 1.) Packet loss is considered by wrong sequence number on each stream individually or Please confirm the allocation of sequence number for multi stream bidirectional communication. 2.) Although i am not having any RTP packet lost registered at B, but from the traces I could see the wrong sequence(using RTP stream analysis) number on the streams from A to B. Any probable reason why this behavior ? 3.) If a have a router between my nodes A and B, then can router detects RTP packet lost ? If yes then how? Thanks in Advance. Regards, asked 27 Jan '13, 02:46  Varsha Mishra |
One Answer:
If there's codecs being used other that PCMA or PCMU, or additional features like VAD/CN, RTP events etc. then you can expect these warnings to be triggered. Than it's up to you to decide if this is really a problem according to the applicable profile. answered 27 Jan '13, 03:34  Jaap ♦ |
Hi I think Wiresharks lost packet count gets thrown off by "out-of-sequence" packets duplicted packets and the like.