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.
On a computer running Windows, you can also start the administration tool from the Start menu, following the path
Programs > TIBCO > TIBCO EMS 6.0 > Start EMS Multicast Daemon.
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.
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.
