Hello Guys!

I have a weird scenario, but I will try to make it simple to understand. I have a customer that works with video streaming. He use a kind of video encoder that sends multicast traffic over the network, so the connection was made to be simple: He take a video source and insert it on the encoder, the encoder (duhhh) encodes the video stream and send it to the network via multicast packets. While doing this, he uses a video decoder that receive the multicast traffic on the other side of the network and it's done: The video stream on the other side goes out on the output of decoder normally, without any adictional setup.
But, guess what? If you want to have three video streams with 3 encoders + 3 decoders, you need to isolate the traffic between them because of the multicast, or you will end with alternating image source on decoders randomly.

This customer asked me if he can send 3 different video sources over a wireless link, so he can use 3 encoders plus 3 stations over one access point and separate the link, the first idea that came in my mind was: Well, lets use VLAN and voilá! Problem solved!

But I've faced a problem at this setup, as wireless doesn't treat multicast very well..
I've created a bridge as usual between vlans for each interface, so it should work correctly, but the video streams leaks all over VLANS.

How to solve this scenario or make it work correctly? He need this setup because all those decoders will be not in a static point (cameraman + encoder)...

Regards!

For this you will require a proprietary wireless video link from cameramen to base station, and from the video outputs there, you can have the encoders convert to multicast to a wired network. I use encoders/decoders that work exactly as you describe using multicast requiring separate vlans. They will not work over 'wifi' due to the fact that they multicast traffic and bandwidth requirements.

If you need any more help, let me know.

TonyJr

Hello TonyJr!

For this you will require a proprietary wireless video link from cameramen to base station, and from the video outputs therer

Can you give me more info about this proprietary wireless video link? Do you know any?

Best regards and thank for your patience hahaha...

Artur Portella.

Just curious, are you using the multicast-helper option in the wireless interfaces for each VLAN?

Do these devices all use the same multicast address?