To enable unicast distribution, the Fabrikam technicians create a broadcast publishing point on a remote server that sources from the broadcast publishing point on the origin server. Then they configure the remote publishing point for multicast delivery. End users normally connect to the multicast stream from the origin publishing point. However, broadcast publishing points that are configured for multicast can also deliver unicast streams.
When you distribute from a broadcast publishing point,
Unicast distribution is enabled in two steps. First, create a broadcast publishing point on the remote computer, then configure it for multicast delivery.
On the remote server, the technicians add a new publishing point using the advanced method, entering the following information:
For Publishing point type , select Broadcast .
Location of content
, type the unicast URL of the publishing point (for example, rtsp://WMOrigin01/MCast01). Or, if you want to source from the multicast stream, type “mcast://”, followed by the location of the multicast information file for the publishing point (for example,
The technicians make sure the origin server publishing point is set to allow new unicast connections so that the publishing point will continue to send a multicast stream while accepting unicast connections. The server can deliver unicast streams as soon as the publishing point has been created and the Allow new unicast connections option has been enabled.
To rebroadcast the stream using multicast delivery, the technicians would need to create a multicast information file and announcement file.
To enable multicast delivery on the new publishing point, the Fabrikam technicians do the following:
On the Announce tab of the new remote publishing point, run the Multicast Announcement Wizard .
Click Yes on the message asking whether to enable the WMS Multicast Data Writer plug-in.
In the wizard, enter the following information:
Create a multicast information file (.nsc) and an announcement file (.asx).
Add stream format by typing the URL of the origin server publishing point (for example rtsp://WMOrigin01/MCast01).
Enter a path to save the two files. These metafiles are typically hosted on a Web server so they can be accessed easily by end users (for example, \\WebServer\Inetpub\Wwwroot\RemMCast01.asx and \\WebServer\Inetpub\Wwwroot\RemMCast01.nsc).
Enter the URL of the .nsc file. For example, the URL on a Web server might be http://WebServer/RemMCast01.nsc.
Start the publishing point.
At this point a technician can