SAP TTL
Posted: 11 Jan 2007 03:01
I'm using VLC 0.8.6a on MacOS to do multicast UDP broadcasting with SAP.
However, the TTL on all SAP packets is 255, no matter what value I set on the command line -ttl value.
I also don't see any change in this high TTL when adding supposedly outdated switches,
--sout-udp-ttl 2 --sout-rtp-ttl 2 --sout-standard-sap=1
I'm using VLM to setup the stream
new ABCAP broadcast enabled
setup ABCAP input "udp://@127.0.0.1:1234"
setup ABCAP output
#std{access=udp,mux=ts,dst=233.70.142.177:1234,sap,group="TEST UCTV International",name="Australia Network",ttl=2}
control ABCAP play
I've tried with and without a ttl value in the VLM output, and all combinations.
So could someone confirm that --ttl=n is the correct way to specifiy the TTL of the outgoing stream, and SAP announce. Whether it should be specified on the command line, or in the VLM channel spec.
As I can't seem to change it from 255 no matter what I do, could someone confirm this behavior.
SAP is broadcast on 224.2.127.254 and can be seen using ethereal.
thanks,
George
However, the TTL on all SAP packets is 255, no matter what value I set on the command line -ttl value.
I also don't see any change in this high TTL when adding supposedly outdated switches,
--sout-udp-ttl 2 --sout-rtp-ttl 2 --sout-standard-sap=1
I'm using VLM to setup the stream
new ABCAP broadcast enabled
setup ABCAP input "udp://@127.0.0.1:1234"
setup ABCAP output
#std{access=udp,mux=ts,dst=233.70.142.177:1234,sap,group="TEST UCTV International",name="Australia Network",ttl=2}
control ABCAP play
I've tried with and without a ttl value in the VLM output, and all combinations.
So could someone confirm that --ttl=n is the correct way to specifiy the TTL of the outgoing stream, and SAP announce. Whether it should be specified on the command line, or in the VLM channel spec.
As I can't seem to change it from 255 no matter what I do, could someone confirm this behavior.
SAP is broadcast on 224.2.127.254 and can be seen using ethereal.
thanks,
George