Port for sending rtcp receiver reports

Questions : Port for sending rtcp receiver reports


If I am receiving a rtp stream, which programming port do I send rtcp receiver reports? Learning For example if I use an SDP to negotiate Earhost a receive only stream with the server most effective say through SIP, I would only specify my wrong idea ports for receiving rtp and rtcp use of case streams. How should the server respond. United It only needs to send rtp sterams. So it Modern can choose any port on its end of the ecudated socket. How should it specify the rtcp some how port on which it would be listening to anything else rtcp receiver report?

Total Answers 3

Answers 1 : of Port for sending rtcp receiver reports

Normally the RTCP port is the next port not at all number up from the one being used for very usefull RTP. So for example if the RTP port is localhost 30000 then port 30001 will be used for love of them RTCP.

In the case you've mentioned you could localtext wait until you receive an RTP packet basic from the server and then send the RTCP one of the receiver reports to the RTP port number click + 1.


Answers 2 : of Port for sending rtcp receiver reports

Normally, it is the next port number up there is noting from the negotiated RTP port.

Rare exception to this "RTP + 1 = RTCP" not alt rule would be when a SIP session not at all travels through a network address my fault translation device, and where port issues mapping is involved.

RFC 3605 explains the SDP extension to trying handle this scenario.


Answers 3 : of Port for sending rtcp receiver reports

According to RFC3264, there are no get 4th result differences for recvonly streams and round table sendrecv streams. The RTCP message can double chance be sent to RTP port number + 1.

For recvonly and sendrecv streams, the novel prc port number and address in the offer get mossier indicate where the offerer would like to off side back receive the media stream. For sendonly the changes RTP streams, the address and port Nofile hosted number indirectly indicate where the transparent text offerer wants to receive RTCP Background movment reports. Unless there is an explicit front page design indication otherwise, reports are sent life change quotes to the port number one higher than the I'd like number indicated.

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