> Running Multicast
> For an example of multicast messaging, see Multicast Messaging Example
> Starting the Multicast Daemon
> The multicast daemon is located in your installation_path /bin directory and is a stand-alone executable named tibemsmcd on UNIX and tibemsmcd.exe on Windows platforms.
> Windows
> On a computer running Windows, you can also start the administration tool from the Start menu, following the path Programs > TIBCO > TIBCO EMS 5.1 > Start EMS Multicast Daemon.
> UNIX
> On a computer running a UNIX system, the multicast daemon must have root privileges. This can be done either by running the daemon from a root user account, or the daemon can be setuid (set user ID) root, allowing any user to run tibemsmcd with the required root privileges. Root privileges are required because multicast uses raw sockets.
> Once multicast initialization is complete, the EMS server and multicast daemon release root privileges.
> For more information, see Multicast and Root Access of the TIBCO Enterprise Message Service Installation.
> Creating a Multicast Consumer
> The EMS client is enabled for multicast by default, and no special configuration is required. To receive multicast data, the client need only create a multicast consumer by subscribing to a multicast-enabled topic using the NO_ACKNOWLEDGE mode, as described in Message Acknowledgement.
> You can also disable multicast in a client, using API calls. For more information, see the API documentation for your language.

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