[AG-TECH] Bridge documentation

S.Booth spb at epcc.ed.ac.uk
Wed Jan 11 16:28:58 CST 2006

On Mon, 9 Jan 2006, Jeremy Mann wrote:

> I would like to know if there is a way to configure the Unicast bridge so
> that I can hardcode the UDP unicast directly for each room instead of
> having it dynamically assign ports. I know about portMin and portMax which
> I'm currently using, but I'd like the ability to publish each rooms
> Unicast ports on our Access Grid website.
This was the mode of operation I originally designed the quickbridge code 
for. If you want to set up static perminant bridges for a room
all you need to do is run the quickbridge binary manually specifying the 
ports you want using command line flags. e.g
./quickbridge -g <multicast-group> -m <multicast-port> -u <unicast-port>
(obviously you need to construct the room to use static multicast group 
and ports).

If you run QB without command any arguments it should print a help 

Note that for static bridges you can use a single QB instance to bridge 
multiple rooms or video/audio at the same time by adding multiple sets of 
flags seperated by the -n flag.

./quickbridge -g <multicast-group> -m video-mcast-port -u video-unicast-port -n -m audio-mcast-port -u audio-unicast-port

The code is also written not to use any CPU when there are no clients 
attached so there is no downside to leaving the bridge running for long 


|epcc| Dr Stephen P Booth             Project Manager           |epcc|
|epcc| s.booth at epcc.ed.ac.uk          Phone 0131 650 5746       |epcc|

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