(Internet Transit Provider)

          +-----------+      +--------------+ DOTS
         +-----------+|      |              |S<---
   IPFIX | Flow      || DOTS | Orchestrator |
      -->| collector ||C<-->S|              | BGP Flowspec (Redirect)
         |           |+      |              |--->
         +-----------+       +--------------+

               DOTS +------------+  DOTS +------------+ IPFIX
               --->C| Forwarding |  --->C| Forwarding |--->
       BGP Flowspec |   node     |       |   node     |
     (Redirect) --->|            |       |            |  DDoS Attack
[Target]            |       ++====================================
                    +-------||---+       +------------+
                            ||              /
                            ||             / (congested link)
                            ||            /
                    DOTS  +-||----------------+ BGP Flowspec (Redirect)
                     --->C| ||  Forwarding    |<---
                          | ++===  node       |
                          +----||-------------+
                               |/
                            +--x-----------+
                            |     DMS      |
                            +--------------+

    C: DOTS client functionality
    S: DOTS server functionality