PSMs/BGP_state_machine.json

{
    "states": [
        "Idle",
        "Connect",
        "Active",
        "OpenSent",
        "OpenConfirm",
        "Established"
    ],
    "initial_state": "Idle",
    "final_states": [
        "Idle"
    ],
    "transitions": [
        {
            "from": "Idle",
            "to": "Connect",
            "event": "ManualStart",
            "action": "Initiate TCP, start ConnectRetryTimer"
        },
        {
            "from": "Idle",
            "to": "Active",
            "event": "ManualStart_with_PassiveTcpEstablishment",
            "action": "Start listening, reset ConnectRetryCounter"
        },
        {
            "from": "Idle",
            "to": "Active",
            "event": "AutomaticStart_with_PassiveTcpEstablishment",
            "action": "Start listening, reset ConnectRetryCounter"
        },
        {
            "from": "Idle",
            "to": "Idle",
            "event": "AutomaticStop",
            "action": "Do nothing"
        },
        {
            "from": "Idle",
            "to": "Connect",
            "event": "IdleHoldTimer_Expires",
            "action": "Initiate connection after oscillation damping"
        },
        {
            "from": "Connect",
            "to": "Active",
            "event": "TcpConnectionFails",
            "action": "Reset ConnectRetryTimer, listen for incoming connection"
        },
        {
            "from": "Connect",
            "to": "OpenSent",
            "event": "TcpConnectionConfirmed",
            "action": "Send OPEN, start HoldTimer"
        },
        {
            "from": "Connect",
            "to": "OpenSent",
            "event": "DelayOpenTimer_Expires",
            "action": "Send OPEN, start HoldTimer"
        },
        {
            "from": "Connect",
            "to": "Idle",
            "event": "ConnectRetryTimer_Expires",
            "action": "Reset ConnectRetryCounter, release resources"
        },
        {
            "from": "Active",
            "to": "Connect",
            "event": "TcpConnection_Valid",
            "action": "Initiate TCP connection"
        },
        {
            "from": "Active",
            "to": "Idle",
            "event": "TcpConnectionFails",
            "action": "Reset ConnectRetryCounter, release resources"
        },
        {
            "from": "Active",
            "to": "OpenSent",
            "event": "DelayOpenTimer_Expires",
            "action": "Send OPEN, start HoldTimer"
        },
        {
            "from": "Active",
            "to": "Idle",
            "event": "ConnectRetryTimer_Expires",
            "action": "Reset ConnectRetryCounter, release resources"
        },
        {
            "from": "OpenSent",
            "to": "OpenConfirm",
            "event": "BGPOpen",
            "action": "Send KEEPALIVE, start HoldTimer"
        },
        {
            "from": "OpenSent",
            "to": "Idle",
            "event": "TcpConnectionFails",
            "action": "Reset ConnectRetryCounter, release resources"
        },
        {
            "from": "OpenSent",
            "to": "Idle",
            "event": "BGPOpenMsgErr",
            "action": "Send NOTIFICATION, reset ConnectRetryCounter, release resources"
        },
        {
            "from": "OpenSent",
            "to": "Idle",
            "event": "OpenCollisionDump",
            "action": "Send NOTIFICATION, reset ConnectRetryCounter, release resources"
        },
        {
            "from": "OpenConfirm",
            "to": "Established",
            "event": "KeepAliveMsg",
            "action": "Restart HoldTimer"
        },
        {
            "from": "OpenConfirm",
            "to": "Idle",
            "event": "HoldTimer_Expires",
            "action": "Send NOTIFICATION, reset ConnectRetryCounter, release resources"
        },
        {
            "from": "OpenConfirm",
            "to": "Idle",
            "event": "NotifMsgVerErr",
            "action": "Send NOTIFICATION, reset ConnectRetryCounter, release resources"
        },
        {
            "from": "Established",
            "to": "Idle",
            "event": "ManualStop",
            "action": "Send NOTIFICATION, reset ConnectRetryCounter, release resources"
        },
        {
            "from": "Established",
            "to": "Idle",
            "event": "AutomaticStop",
            "action": "Send NOTIFICATION, reset ConnectRetryCounter, release resources"
        },
        {
            "from": "Established",
            "to": "Idle",
            "event": "HoldTimer_Expires",
            "action": "Send NOTIFICATION, reset ConnectRetryCounter, release resources"
        },
        {
            "from": "Established",
            "to": "Idle",
            "event": "NotifMsgVerErr",
            "action": "Send NOTIFICATION, reset ConnectRetryCounter, release resources"
        },
        {
            "from": "Established",
            "to": "Idle",
            "event": "TcpConnectionFails",
            "action": "Reset ConnectRetryCounter, release resources"
        },
        {
            "from": "Established",
            "to": "Idle",
            "event": "UpdateMsgErr",
            "action": "Send NOTIFICATION, reset ConnectRetryCounter, release resources"
        }
    ]
}