(Internet Transit Provider)

               +-----------+      +--------------+ SNMP or YANG/NETCONF
        IPFIX +-----------+| DOTS |              |<---
          --->| Flow      ||C<-->S| Orchestrator | BGP (Redirect)
              | collector |+      |              |--->
              +-----------+       +--------------+

                         +------------+
                  IPFIX +------------+| BGP (Redirect)
                    <---| Forwarding ||<---
                        |    nodes   ||
                        |            ||     DDoS Attack
[Target A]              | ++=================== [Destined for Target A]
[Target B]              | ||  ++=============== [Destined for Target B]
                        +-||--||-----+
                          ||  ||
                    ++====++  ||  (congested DMS)
                    ||        ||  +-----------+
                    ||        |/  |      DMS3 |
                    ||  +-----x------+        |<--- SNMP or YANG/NETCONF
                    |/  |       DMS2 |--------+
                 +--x---------+      |<--- SNMP or YANG/NETCONF
                 |       DMS1 |------+
                 |            |<--- SNMP or YANG/NETCONF
                 +------------+

    C: DOTS client functionality
    S: DOTS server functionality