---
title: Dual PUSH Transmission to Single Target (Warm Redundancy)
slug: product-features/dual-push-transmission-to-single-target-warm-redundancy
docTags: 
createdAt: 2024-12-08T16:21:34.833Z
---



![](https://api.archbee.com/api/optimize/mzxtTQEvCNIdUNgF2kuwJ/SnBW3hddmRRYwjteZ3XE0_image.png)

Multiple source nodes can be configured to PUSH to a single Zixi target Input. Provided that the streams from both source nodes include the same Stream ID, contention for the input is decided on a first-come first-served basis. If the primary source connection is lost, the target Input will automatically accept a new stream (coming from the secondary source). As a result, this topology provides source-side redundancy with automated fail-over to a second identical stream. 

## Source Configuration

The following procedure describes how to configure two ZECs to push a single stream to a target hosts in a warm redundancy configuration. The procedure does not cover instructions on how to configure the Input into the ZEC. 

**To configure the primary source node (e.g. ZEC):**

1. On the **Outputs** page of ZEC, click the **New Output** button, located in the upper- right end corner of the screen.
2. In the **Output** **Name** field, type a new name for the output. 
3. In the **Type** field, select **Push **radio button option.
4. In the **Input Stream** field, select the relevant input stream.
5. In the **Stream ID** field, enter a stream ID (alphanumeric). The same Stream ID will be also configured in the target node (Push Input).
6. Optional - in the **Password** field, specify a string to be used at the destination to authenticate that the pushing Broadcaster is allowed to push this stream.
7. In the **Max Latency** field, specify the buffer size that Zixi Broadcaster will keep for error correction. For example, 6000 milliseconds would ensure that the stream is protected for six seconds of errors in the network. Default: 6000.
8. In the **Host** field, enter the host name or IP of the primary target.
9. In the **Port** field, specify the destination port to listen on for the Push stream (default: 2088).
10. In the **IP** field, select from the drop-down menu, the IP address of the NIC (Network Interface Card) in the Source through which the stream will be pushed.
11. Click **OK**.
    The output is added to the Outputs list. 

**To configure the secondary source node repeat the same steps.**



![](https://api.archbee.com/api/optimize/mzxtTQEvCNIdUNgF2kuwJ/JrpVtaSYdQlEKt8Myv68q_image.png)

## Target Configuration

The following procedures describe how to configure the target Zixi Broadcaster in a warm redundancy configuration. The target is configured with a single input. If this input is unavailable the secondary input will be received. The input must use the same Stream ID that was used to configure the primary and secondary source nodes (ZECs). 

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

1. Click the **Inputs **tab at the top of the secondary Zixi Broadcaster administrative screen
2. Click **New Input **on the upper right hand side of the screen.
3. In the **Stream ID** field, enter the same “Stream ID” as the source outputs. 
4. Select the **Push **option.
5. Configure additional parameters as required. 
6. Click **OK**.

## Cost Considerations

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

## Latency Considerations

For detailed recovery time details, please contact your Zixi representative.