+------------------+       +------------------------+
  | Enterprise       |       |    Upstream            |
  | Network          |       |    Internet Transit    |
  |  +------------+  |       |    Provider            |
  |  | Network    |C |       |   S+--------------+    |
  |  | admini-    |<-----DOTS---->| Orchestrator |    |
  |  | strator    |  |       |    +--------------+    |
  |  +------------+  |       |         C ^            |
  |                  |       |           | DOTS       |
  |                  |       |         S v            |
  |                  |       |    +---------------+ DDoS Attack
  |                  |       |    |      DMS      |+=======
  |                  |       |    +---------------+   |
  |                  |       |           || Clean     |
  |                  |       |           |/ Traffic   |
  |  +---------+     |       |   +---------------+    |
  |  | DDoS    |     |       |   | Forwarding    | Normal Traffic
  |  | Target  |<================| Node          |========
  |  +---------+     | Link1 |   +---------------+    |
  +------------------+       +------------------------+

    C: DOTS client functionality
    S: DOTS server functionality