3.1.5.19 Receiving a Stop Response
The client MUST first follow the steps specified in section 3.1.5.3.
The value of the Client-State variable MUST be set to IDLE.
If the Keepalive timer is running, it MUST be restarted. If it is not running, it MUST be started.
Next, the client MUST process the rules in section 3.1.5.2.