+----------+                +----------+
   |          |                |          |
   |    App   |                |    App   |
   |          |                |          |
   +----------+                +----------+
        |                           ^
        |  Source           Source  |
        |  Symbols          Symbols |
        |                           |
        v                           |
   +----------+                +----------+
   |          | Output Packets |          |
   |  Tetrys  |--------------->|  Tetrys  |
   |  Encoder |Feedback Packets|  Decoder |
   |          |<---------------|          |
   +----------+                +----------+