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Change UDP Packet Size

Posted: 13 Aug 2009 17:12
by Kazuya.H
Hi !!

I am streammig a movie over a 802.11 network. I need to change the rtp/udp packet size to evaluate the performance of the network in differents enviroments. I am doing an unicast transmission from a video server to a video client.

Many Thanks !!!

Re: Change UDP Packet Size

Posted: 13 Aug 2009 18:34
by Rémi Denis-Courmont
There is a MTU setting for that.

Re: Change UDP Packet Size

Posted: 14 Aug 2009 03:07
by lordnk
I noticed that when using the RTP output module and the MTU option together, I was able to control the packet size/timing. That is to say, setting an MTU of 10 would send packets at roughly 1ms or less apart.

Mtu of 20 send packets about 2ms apart, etc etc up to 170, where the packets end up 'maxing out' at 16.6666ms apart - after 170 MTU it makes no difference, the time/size of packet is always 16ms/180b ? Is this a bug?

Re: Change UDP Packet Size

Posted: 15 Aug 2009 10:50
by Rémi Denis-Courmont
That depends on the payload format.