PSMs/PPP_state_machine.json

{
    "states": [
        "Initial",
        "Starting",
        "Closed",
        "Stopped",
        "Closing",
        "Stopping",
        "ReqSent",
        "AckRcvd",
        "AckSent",
        "Opened"
    ],
    "initial_state": "Initial",
    "final_states": [
        "Initial"
    ],
    "transitions": [
        {
            "from": "Initial",
            "to": "Closed",
            "event": "receive lower layer up (Up)",
            "action": "send This-Layer-Up (tlu)"
        },
        {
            "from": "Initial",
            "to": "Starting",
            "event": "receive administrative Open (Open)",
            "action": "send This-Layer-Started (tls)"
        },
        {
            "from": "Starting",
            "to": "ReqSent",
            "event": "receive lower layer up (Up)",
            "action": "send Initialize-Restart-Count (irc), send Configure-Request (scr)"
        },
        {
            "from": "Closed",
            "to": "Initial",
            "event": "receive lower layer down (Down)",
            "action": "send This-Layer-Finished (tlf)"
        },
        {
            "from": "Closed",
            "to": "ReqSent",
            "event": "receive administrative Open (Open)",
            "action": "send Initialize-Restart-Count (irc), send Configure-Request (scr)"
        },
        {
            "from": "Closed",
            "to": "Closed",
            "event": "receive administrative Close (Close)",
            "action": ""
        },
        {
            "from": "Stopped",
            "to": "Starting",
            "event": "receive lower layer up (Up)",
            "action": "send This-Layer-Started (tls)"
        },
        {
            "from": "Stopped",
            "to": "Closed",
            "event": "receive administrative Close (Close)",
            "action": "send This-Layer-Finished (tlf)"
        },
        {
            "from": "ReqSent",
            "to": "Closing",
            "event": "receive administrative Close (Close)",
            "action": "send Terminate-Request (str), send Initialize-Restart-Count (irc)"
        },
        {
            "from": "ReqSent",
            "to": "Stopping",
            "event": "receive Terminate-Request (RTR)",
            "action": "send Terminate-Request (str)"
        },
        {
            "from": "ReqSent",
            "to": "ReqSent",
            "event": "timeout counter > 0 (TO+)",
            "action": "send Configure-Request (scr)"
        },
        {
            "from": "ReqSent",
            "to": "Stopped",
            "event": "timeout counter expired (TO-)",
            "action": "send This-Layer-Finished (tlf)"
        },
        {
            "from": "ReqSent",
            "to": "AckRcvd",
            "event": "receive Configure-Ack (RCA)",
            "action": "send Initialize-Restart-Count (irc)"
        },
        {
            "from": "ReqSent",
            "to": "AckSent",
            "event": "receive Configure-Request (RCR+)",
            "action": "send Configure-Ack (sca)"
        },
        {
            "from": "AckRcvd",
            "to": "Closing",
            "event": "receive administrative Close (Close)",
            "action": "send Terminate-Request (str), send Initialize-Restart-Count (irc)"
        },
        {
            "from": "AckRcvd",
            "to": "Opened",
            "event": "receive Configure-Request (RCR+)",
            "action": "send Configure-Ack (sca), send This-Layer-Up (tlu)"
        },
        {
            "from": "AckRcvd",
            "to": "ReqSent",
            "event": "receive Configure-Nak/Rej (RCN)",
            "action": "send Configure-Request (scr)"
        },
        {
            "from": "AckSent",
            "to": "Closing",
            "event": "receive administrative Close (Close)",
            "action": "send Terminate-Request (str), send Initialize-Restart-Count (irc)"
        },
        {
            "from": "AckSent",
            "to": "Opened",
            "event": "receive Configure-Ack (RCA)",
            "action": "send This-Layer-Up (tlu)"
        },
        {
            "from": "AckSent",
            "to": "ReqSent",
            "event": "receive Configure-Request (RCR-)",
            "action": "send Configure-Request (scr)"
        },
        {
            "from": "Opened",
            "to": "Closing",
            "event": "receive administrative Close (Close)",
            "action": "send Terminate-Request (str), send Initialize-Restart-Count (irc)"
        },
        {
            "from": "Opened",
            "to": "Stopping",
            "event": "receive Terminate-Request (RTR)",
            "action": "send Terminate-Request (str)"
        },
        {
            "from": "Stopping",
            "to": "Stopped",
            "event": "receive Terminate-Ack (RTA)",
            "action": "send This-Layer-Finished (tlf)"
        },
        {
            "from": "Stopping",
            "to": "Stopping",
            "event": "timeout counter > 0 (TO+)",
            "action": "send Terminate-Request (str)"
        },
        {
            "from": "Stopping",
            "to": "Stopped",
            "event": "timeout counter expired (TO-)",
            "action": "send This-Layer-Finished (tlf)"
        },
        {
            "from": "Closing",
            "to": "Closed",
            "event": "receive Terminate-Ack (RTA)",
            "action": "send This-Layer-Finished (tlf)"
        },
        {
            "from": "Closing",
            "to": "Closed",
            "event": "timeout counter expired (TO-)",
            "action": "send This-Layer-Finished (tlf)"
        }
    ]
}