Adding a Source – Inter-Cluster

You can create an Inter-Cluster Source to pull a stream from an existing Source that is managed by ZEN Master into a new Cluster in ZEN Master. This enables you to specify the latency and private IP address used for pulling the stream. The new Source will be monitored fully by ZEN Master. 

This can be helpful, for example, if your deployment utilizes separate Broadcaster clusters for ingesting source streams and delivering streams to Receivers.  Creating an Inter-Cluster Source enables you to explicitly pull the Source from the ingesting cluster to the delivery cluster using your customized specifications.

The following procedure describes how to add an Inter-Cluster Source in ZEN Master. In addition, an explanation of each of the configuration parameters is given in the table below.

To add a Source from an existing cluster:

1. In the main navigation, click Sources.
2. Click + Add.
   The Create New Source window is displayed.
   
   
3. Click on Inter-Cluster.
   The Create New Inter-Cluster window opens.
   
   
4. In the Info section, in the Name field, type a logical name for the Source.
5. In the Tags field, select one or more of the predefined Tags from the drop-down list.
   Tags are used for access control. By selecting a Tag, you are relating this Source to that Tag. Tags are associated with certain roles (through the Users & Roles screen), and roles, in turn, are associated with users and user groups. If you would like to create a new Tag, see Creating a Tag.

6. In the Events Configuration Profile field, select from the dropdown list the profile that you would like to apply to this Source. By default, the Default profile is applied.

   Events Profiles consist of a series of rules that determine precisely how various types of Events are logged and what results they trigger.

7. The Source's location is used to represent it in the proper position in the Map display (see Maps). By default, the location is determined automatically based on the Source's IP. If you would like to manually set the location of the Source (Optional), use the following procedure:
   1. Click on the Edit icon next to the Location field.
      A search box is shown below the Location field.
   2. Enter identifying info for the location (e.g. street address, zip code, coordinates).
      Search results are displayed below the search box as you type.
   3. Click on the desired location.
      The selected location populates the Location field.
8. In the Input section, in the Source field, select from the drop-down list a source that is managed on ZEN Master that will be sent to the new Ingest Cluster.
9. In the Configuration section, in the Ingest Cluster field, select from the drop-down list one of the available Ingest Clusters as the destination for the Source.

10. In the Target Broadcaster/s field, specify which Broadcaster/s within the cluster on which ZEN Master can deploy the source. Either select one or more specific broadcasters (for Manual clusters) OR specify your preference for using primary vs. backup broadcasters, options are: Prefer Primary Broadcasters, Primary Broadcasters only, Backup Broadcasters only or Prefer Backup Broadcasters.

    For managed clusters, it is not recommended to select a specific broadcaster, as the broadcaster’s availability may not remain stable.

11. If you would like to use a private IP, select the Prefer Private Broadcaster IP checkbox.

    Using this feature may be cost effective when using Manual clusters. To use this feature, you must first enter a Private IP in the Broadcaster's advanced configuration (go to Broadcasters screen > select the relevant Cluster > Broadcasters tab > Edit the relevant broadcaster), see Adding a Broadcaster to a Manual Cluster.

12. In the Input NIC field, if you would like to specify which NIC is used, then select the IP of that NIC from the drop-down list. By default, Any is selected.

13. In the Latency [ms] field, select the latency time for the stream. Default value: 4000.

    For Clusters that are in close geographical proximity lower latency can be used.

14. If you would like to apply a PID Mapping profile to this Source, then in the PID Mapping Profile field, select the desired profile from the dropdown list.

    Using this method creates a single Source in ZEN Master with PID Mapping applied. If you would like to maintain a Source with the original PIDs and create an additional Source with PID Mapping (e.g. if you want to create several different PID Mapped variations), then use the method described in Adding a Source - PID Mapping.
    To create a new PID Mapping Profile, see Adding PID Mapping Profiles.

15. If you would like to generate email notifications whenever a PID change is detected In the Configuration section, select the Alert on PID changes checkbox.

16. Select the Log SCTE-35 checkbox if you would like to log SCTE-35 markers for this stream.

    To log SCTE-35 markers, SCTE-35 needs to be enabled both on the Ingest Cluster and on the Source configuration.

    SCTE-35 logging is only available for v13.1.40262+ Broadcasters.

17. If Log SCTE-35 was selected, you can choose to receive alerts for SCTE-35 markers by selecting the Enable SCTE-35 alerts checkbox.
18. In the Public Output field, if you would like to allow access to the stream directly through a supported player, select the Allow checkbox.
19. If you selected the Allow checkbox, then enter a password in the Password field to authenticate access to the stream.

20. If you would like enable Content Analysis (CQA), verify that the Enable Content Analysis checkbox is selected (default).

    It is generally recommended to enable Content Analysis unless it is causing technical problems. If Content Analysis is disabled, the system won't detect errors in the video and audio content of the stream and won't generate warnings for such events. Even when Content Analysis is disabled the system will still detect TR101 errors in the stream.

21. If you would like to monitor CEA-608/CEA-708 closed captions, select the Monitor CEA-608/CEA-708 checkbox.

    Monitoring CEA-608/CEA-708 Closed Captions requires using a version 14.4 or newer Broadcaster.

22. If you would like to disable auto-pull, select the Disable Auto-Pull checkbox.

    Disabling Auto-Pull will lock Channels using this Source to the Source's Ingest Cluster and Targets to the Source's current active Broadcaster. This setting only applies to Pass-Through Channels.

23. If Auto-pull is enabled, in the Auto-Pull Latency [ms] field, specify the desired latency for auto-pull actions. (Default: 1000 ms)

24. In the WebRTC Playback section, select the desired playback method.

    WebRTC enables you to monitor the stream via web browsers and mobile applications with real-time communication (RTC). WebRTC needs to be activated independently for each Source in ZEN Master (by default it is disabled).

    
    Select one of the following options:

    • Disabled - users will not be able to view this Source using WebRTC (default)
    • Pass-Through - passes the stream through to WebRTC without transcoding. This option can only be used if the input stream is already in a WebRTC compliant format (video - H.264 codec with Baseline or Main profile and no B frames, Audio - Opus codec).

    • Auto - ZEN Master automatically transcodes the stream using the optimal profile for each specific user. In this option Zixi Broadcaster will decode the video, transforming it into RAW frames, which will be passed to the WebRTC library, where it will be re-encoded for each individual user.

      Best quality. However, if monitored by multiple users this can consume extensive resources.

    • 1080p/720p/480p/360p - ZEN Master transcodes the stream to a WebRTC compliant  profile with the specified resolution. The transcoding is done by Zixi Broadcaster's transcoder.

      This method requires a Zixi Broadcaster with X264 or Nvidia for transcoding. This method allows many users to monitor the stream without encoding separately for each individual user, which saves CPU capacity. Since there is only one stream version, it is recommended to encode to a low resolution and low bitrate so that the stream will be viewable by all users monitoring the stream.

25. In the Initial State section, select the Disabled checkbox if you would like to disable this Source upon initial configuration.

26. Select the Muted checkbox if you would like to disable error/recovery notifications for this Source upon initial configuration.

    You can Enable/Unmute the Source at any time.

27. If you would like to adjust the advanced settings, click Advanced.
    The Advanced settings fields are displayed:
    
28. If you would like to track usage for this Source, enter your Billing Code details. See Billing Codes.
29. In the Auto Pull MTU field, specify the maximum transmission unit (largest data packet that a network-connected device will accept) in bytes for the Auto Pull.
30. To set the detection of frozen video, in the Frozen Video Minimal Duration field, specify the default minimal duration in seconds of frozen video after which the Broadcaster will trigger a Frozen video alert. Default: 10 seconds. This setting is supported for Broadcaster version 16.3 and higher. 
31. To set the detection of blank video, in the Blank Video Minimal Duration field, specify the default minimal duration in seconds of blank video after which the Broadcaster will trigger a Blank video alert. Default: 10 seconds. This setting is supported for Broadcaster version 16.3 and higher. 
32. Click Save.

Inter-Cluster Source Configuration Parameters Table