# Step 4: Download and post the SDP file
Step 4: Download the SDP file

If your organization doesn't use NMOS, you must make sure that the downstream system (the SMPTE 2110 receiver) can access them:
+ If the location is accessible and doesn't need user credentials, provide the downstream system operator with the full path so that they can download the SDP files.
+ If the location where the files are stored isn't accessible from the public internet, you must download the files and put them on a location that is accessible.

If your organization uses NMOS, skip this step.

**Location and syntax of the files**

Elemental Live puts the SDP files on the HTTP root folder: 

`/opt/elemental_se/web/public/`

The files are named as follows:

`SmpteSt2110Output.LiveEvent_<event ID>.OutputGroup_<output group>_2110-<ID>_<media>_<unique number on node>.sdp`

For example:

`SmpteSt2110Output.LiveEvent_123.OutputGroup_curling_smpte_2110.2110-20_video_473.sdp`

The key pieces of information are:
+ `123` – The number for this event, unique on this Elemental Live node.
+ `curling` – The name you assigned to this output group.
+ `2110-20_video` – Identifies this file type. In this example, it's an SDP file for uncompressed video.
+ `473` – A number that is unique for this Elemental Live node.

**To locate and download the SMPTE 2110 SDP file**

1. From your output, select **View Logs**.

1. Select the eme log to view its contents.

1. Within the eme log, search for `Writing SDP file to`. You will find a line for the video, and a line for the audio. Copy the portions that follow `/opt/elemental_se/web/public/` for each line. These are your SDP files. For example:

   `SmpteSt2110Output.LiveEvent_123.OutputGroup_curling_smpte_2110.2110-20_video_473.sdp`

1. If you don't know the IP address of your Elemental Live appliance, find it now. In the Elemental Live web interface, choose **Settings**. (Don't choose **Input Devices** or **Routers** from the submenu).

   On the **Settings **page, choose the **Network** tab, then choose the **Current Settings** tab. Make a note of the IP addresses in the **Domain Name Servers** section.

1. Download the file using a suitable tool to connect from a computer that is on your network to the Elemental Live appliance. For example:
   + On a PC, use Windows Share protocol. Connect to:

     `\\<IP address>\opt\elemental_se\web\public\`
   + On a Mac, use Samba. Connect to:

     `smb://<IP address>/opt/elemental_se/web/public/`

1. Download the files. Then put the files on an HTTP server that you know the receiver can access.