+-----------+                              +-----------+
|DOTS Client|                              |DOTS Server|
+-----------+                              +-----------+
      |                                          |
      |  GET /<mid>                              |
      |  Token: 0x4a                             | Registration
      |  Observe: 0                              |
      +----------------------------------------->|
      |                                          |
      |  2.05 Content                            |
      |  Token: 0x4a                             | Notification of 
      |  Observe: 12                             | the current state
      |  status: "attack-mitigation-in-progress" |  
      |<-----------------------------------------+
      |                                          |
      |  2.05 Content                            |
      |  Token: 0x4a                             | Notification upon
      |  Observe: 44                             | a state change
      |  status: "attack-successfully-mitigated" |  
      |<-----------------------------------------+
      |                                          |
      |  2.05 Content                            |
      |  Token: 0x4a                             | Notification upon
      |  Observe: 60                             | a state change
      |  status: "attack-stopped"                |  
      |<-----------------------------------------+
      |                                          |
                         ...