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Configuring SRT Path Redundancy

You can configure the Makito X4 encoder to use redundant transport paths to ensure that content arrives at the decoder during an event. The Makito X4 encoder supports SMPTE 2022-7 style Path Redundancy in SRT Listener and Caller modes. The same content is sent over two SRT connections and network paths. If there is a failure on one of the transport links, the switchover to the other link will be seamless with no glitch on the video output and no interruptions.

Starting with v1.4, you can also configure Active-Backup from the Web Interface (previously only via the CLI). This update allows an SRT listener to accept one non-redundant connection on any of the paths configured, or two redundant connections. 


To enable path redundancy the Makito X4 encoder (as well as the destination decoder, Haivision Media Gateway (HMG), or SRT Gateway) must be equipped with dual NICs. 

To configure SRT path redundancy for a stream:

  1. Follow the steps in Configuring Secure Reliable Transport (SRT) to set up the SRT stream.
  2. On the Outputs Detail View, select the TS over SRT protocol and Caller mode.
  3. Select either Active-Active or Active-Backup for Path Redundancy and fill in the Connection Parameters for each path. See Output Settings ("SRT Settings" tab).
  4. To configure redundant transport paths, select eth0 for the Interface for one path and eth1 for the other path.
  5. Fill out the remaining Connection, SRT Access Control and Link Parameters. 
  6. Click Create to start the stream connection. 
  7. Click the Statistics button to see how the SRT streams are performing.
    The following example shows the graphical statistics display for redundant transport streams:


    You can select which path to display, or both, from the Path 1, Path 2 drop-down. The CSV file merges both paths.

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