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multicast when one user is behind a firewall

Pablo_P_
Level 3
Level 3

Hi,

The comment in MulticastTest.mxml in the sample apps says:

Does it means that only this user will require streaming from the server or that all users will get streaming from the server even if not behind a firewall.

The important thing here is obviously if there will or will not be bandwidth costs.

When setting streamMulticast to true with:

cSession.streamManager.streamMulticast = true

Does it means that everything is using multicast including audio, video, screensharing, chat messages and whiteboard?

Is multicast approperiate for a webinar where one user is streaming a webcam in realtime to ~50 users

or is it more for streaming a video file for a very large number of users (10K) where realtime is less important?

Thanks

4 Replies
Nigel_Pegg
Level 10
Level 10

Hi Dan,

If any of your users can't connect due to firewall issues, the server will need to take over for all users. You could always kick out users who can't connect.

streamMulticast applies only to Audio and Webcam streams. You can set p2pDataMessaging in the nodeConfiguration of individual nodes to do data via p2p.

  nigel

Pablo_P_
Level 3
Level 3

Is this a technical limitation that can't be solved or just a featured that might be implemented in the future?

If I have 99 users which can use multicast and 1 user behind a firewall, can't the server just serve the stream to this user?

Maybe the app should handle it?

The broadcaster will send the stream both to the group and the server.

If a user can't join a group he'll subscribe to the server's stream.

So screen sharing will use multicast?

Do you plan to add netgroup support to whiteboard and chat in the future?

Thanks

Nigel_Pegg
Level 10
Level 10

Hi Dan,

Is this a technical limitation that can't be solved or just a featured that

might be implemented in the future?

Might be implemented in the future, but low in priority.

So screen sharing will use multicast?

Screensharing doesn't support multicast at this time.

Do you plan to add netgroup support to whiteboard and chat in the future?

As I say, you can set the nodeConfigs for your whiteboard or chat nodes to

use p2p data messaging.

nigel

Mickey79
Level 3
Level 3

Hi Dan,

You can show your support for enforcing p2p connections feature request here

http://forums.adobe.com/thread/870204?tstart=0