Single PULL Transmission from Redundant Sources (Warm Redundancy)

A Zixi PULL input can be configured with multiple, ordered, failover sources. The topology includes a target node pulling from a primary source. In the event that the primary source becomes unavailable, the target node will automatically switch to the secondary source. The target node will attempt to pull the primary sources again only in the event that the secondary source becomes unavailable. 

Source Configuration

To configure the primary source node (e.g. Primary Zixi Broadcaster):

1. On the Outputs page of the primary Zixi Broadcaster, click New Output on the upper- right end corner of the screen.
2. In the Output Name field, type a new name for the output. 
3. In the Input Stream field, select the relevant input stream.
4. Select the Pull option.
5. In the Output Parameters section, in the StreamID field, enter an ID string for the stream. This ID should match the ID used in the Input. 
6. In the Remote ID field, enter the Receiver ID that will pull stream. The Receiver ID can be found in the Status page of the Zixi Receiver (http://localhost:4300) under the Receiver Status section.  
7. In the Latency field, set a desired buffer size that ZiXi Broadcaster will maintain for error correction. 'Remote configuration' uses the latency configured in the Receiver.   
8. Click OK to create the primary output.

To configure the secondary source node (e.g. Secondary Zixi Broadcaster):

1. On the Outputs page of secondary Zixi Feeder, click    on the upper- right end corner of the screen.. 
2. In the Output Name field, type the same name used for the primary output.
3. In the Output Parameters section, under Links, enter the same details of the primary target, including:
   The target Host - Specify the destination Broadcaster name or IP address to which you are pushing the stream (secondary target).
   The Port number - Specify the ports to listen on for Push streams. Default - 2088
   Target IP -  
4. Set the desired Max Latency in milliseconds

5. Click OK.

Target Configuration

To configure the target node (e.g. Zixi Broadcaster/Receiver):

1. Click the Inputs tab at the top of the Zixi Broadcaster administrative screen
2. Click New Input on the upper right hand side of the screen.
3. Select the Push option.
4. Create an input at the primary target, ensuring the “Stream ID” matches that of the primary and secondary sources output.
5. Configure additional parameters as required. 
6. Click OK.

Cost Considerations

This topology duplicates the source Zixi hardware and software components. It does not require doubling the uplink bandwidth as the backup connection stream is only active in the event that the primary fails. 

Latency Considerations

Primary Connection loss         = 

Retry cycle                              =

Connection to secondary        =

Total recovery Time                =