--- title: Adding TCP Outputs slug: zixi-broadcaster-zec-current-version/adding-tcp-outputs docTags: createdAt: 2024-12-26T15:04:59.184Z --- The TCP protocol provides a reliable transmission guarantee for no loss of frames. Its bandwidth probing and congestion control will attempt to use all of the available bandwidth between the server and client, fetching content as quickly as possible while being friendly to other (TCP) traffic on the same links. The TCP output can push the stream directly to a TCP socket or to an HTTP server. ## To create a TCP output: ::::WorkflowBlock :::WorkflowBlockItem In the Zixi Broadcaster **Outputs** page, click **+ New Output**. The **New output** window is displayed. ![New TCP Output](https://app.archbee.com/api/optimize/mzxtTQEvCNIdUNgF2kuwJ/Uf4i7ISqyAH3bo0u9D0Fd-20251201-162323.png) ::: :::WorkflowBlockItem Type in the unique identifier for this output in the **Output Name.** ::: :::WorkflowBlockItem Select an **Input Stream** to be made available on this output from the adjacent drop-down list. ::: :::WorkflowBlockItem Select the Show in Matrix check box to display this stream in the Matrix (see [Using the Matrix](docId\:bP6MO9f2QbxmU6gURKoG4)). Default: Selected. ::: :::WorkflowBlockItem Select the **Log this stream** checkbox if you would like to generate event logs for this output. ::: :::WorkflowBlockItem Select **TCP**. ::: :::WorkflowBlockItem Specify the **Output parameters** (see [Output Stream Parameters Table](docId\:x0JnBFoMHzcj3qDR8wYQi) below). ::: :::WorkflowBlockItem If the target is an HTTP server, select the **HTTP** checkbox. In this case, HTTP headers will be added to the stream. ::: :::WorkflowBlockItem Enter additional parameters as necessary (see [Output Stream Parameters Table](docId\:x0JnBFoMHzcj3qDR8wYQi)). ::: :::WorkflowBlockItem Click **OK**. The new TCP Output with its settings is created and now appears on the screen. ::: :::: ### Output Stream Parameters Table | **Parameter** | **Description** | | ----------------------- | ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- | | ***Output Parameters*** | ****** | | Host | The destination host for the stream. | | Port | Specify the ports to listen on for TCP streams.
Default: 7777. | | HTTP | If the target is an HTTP server, select the **HTTP** checkbox. In this case, HTTP headers will be added to the stream. | | **Billing Codes** | Billing codes are used to identify and differentiate traffic on a Zixi Broadcaster for billing purposes. When a billing code is added to a Source or Target, Zixi can track the traffic on that Broadcaster input or output separately from other inputs and outputs on the same Broadcaster. Billing codes are created by Zixi personnel on the Zixi Customer Portal for a particular organization. | | Billing Code | Enter the billing code that corresponds to this stream. The relevant billing can be obtained from the organization that received the billing code from Zixi. | | Billing password | Enter the password that corresponds to this billing code. | | **Enable Decryption** | Select this checkbox to enable decryption of an encrypted stream. | | Decryption type | If the stream has been encrypted, you can decrypt through the output by selecting this checkbox and specifying the type of encryption that was used.
* Select **Automatic** to decrypt a stream that has been encrypted using **Automatic** encryption. * Only if the stream has not been encrypted, select **None** (default).
**Important Notice: if the stream has been encrypted you must decrypt it in the output.** | | Decryption key | Enter the decryption key to decrypt the encrypted stream. | ## Advanced Mode The fields discussed below are optional and available only in **Advanced Mode**. To enter Advanced Mode add the URL parameter `?advanced=1` to the Zixi Broadcaster URL in your browser and press Enter/Return to reload the page: ::Image[]{src="https://api.archbee.com/api/optimize/amUtKWPrNQCS-26DKyGuI-5OBE4QsRN0icABdoD4ciK-20250421-173825.png" size="70" width="800" height="55" position="center" alt="Advanced Mode URL Param" darkWidth="800" darkHeight="55" showCaption="false"} :::hint{type="info"} Note the Advanced Mode settings are generally intended for advanced users and special cases. If you do not understand the settings, you should probably accept the default values. ::: ![](https://api.archbee.com/api/optimize/mzxtTQEvCNIdUNgF2kuwJ/XDI2SrmuB6inVnF-5wZhE-20260607-144126.png) ### General - **Latency offset \[ms]** - Specify the additional buffering time in milliseconds. Increasing this value can improve stream stability in unstable network conditions, but will increase end-to-end delay. Default: 0 ms ### Output Parameters - **Send buffer size (KB)** - Specify the maximum amount of data (measured in kilobytes) that the operating system's network stack can buffer for a specific socket before it is acknowledged by the receiver. ### Enable IFB/Talkback - **Port** - Specify the port to listen on. This port must be open on all firewalls between the Zixi Broadcaster and other devices it is communicating with.