Multicasting

By default, the ENPS server uses SignalR to communicate updates to client workstations. This replaces the older UDP Broadcast and Multicast approaches to transmitting real-time updates.

UDP Broadcast and Multicast approaches are still available within ENPS, but are not recommended outside of transition scenarios where older ENPS clients (earlier than version 8.2) are still in use and require real-time updates.

To enable multicasting:

1. Ensure that all hardware on the network between the ENPS Server and the ENPS Client workstations is compatible with multicasting.

2. Open the NOM.ini Settings file on the server.

3. Verify that Broadcast=1 is set in the [NOM] section.

4. Open the News Wire Profiler Settings file on the server.

5. Verify that Broadcast=1 is set in the [NWP] section.

6. Open System Maintenance > Global Configuration Options.

7. Enable the Multicast and MulticastAlsoBroadcast settings.

8. Open System Maintenance > Servers.

9. Enter the starting values for Multicast IP and Multicast Port.

10. Restart the News Object Manager (NOM) on the Central server.

    This assigns the new MulticastIP and MulticastPort values to all servers across the enterprise. For example:

    Server Name	MulticastIP	MulticastPort
    Server 1	239.0.0.1	10601
    Server 2	239.0.0.2	10602
    Server 3	239.0.0.3	10603

    Although these values are assigned automatically you can use the System Maintenance > Global Configuration Options table to set unique values for each server.