Possibility for Immediate Connect and Disconnect of the same certificate?

[NguyenTam]

Hello, I have a quick question.
Is it possible to have immediate connect and disconnect from the same certificate? I know it will happen when client's Id is the same. What about for a shared certificate?

[NguyenTam]

I will answer to myself. Below has all reasons for disconnects in source code level, then managed client try to reconnect, thus disconnect/connect effect:

public enum MqttClientDisconnectReason
{
    NormalDisconnection = 0,
    DisconnectWithWillMessage = 4,
    UnspecifiedError = 128,
    MalformedPacket = 129,
    ProtocolError = 130,
    ImplementationSpecificError = 131,
    NotAuthorized = 135,
    ServerBusy = 137,
    ServerShuttingDown = 139,
    BadAuthenticationMethod = 140,
    KeepAliveTimeout = 141,
    SessionTakenOver = 142,
    TopicFilterInvalid = 143,
    TopicNameInvalid = 144,
    ReceiveMaximumExceeded = 147,
    TopicAliasInvalid = 148,
    PacketTooLarge = 149,
    MessageRateTooHigh = 150,
    QuotaExceeded = 151,
    AdministrativeAction = 152,
    PayloadFormatInvalid = 153,
    RetainNotSupported = 154,
    QosNotSupported = 155,
    UseAnotherServer = 156,
    ServerMoved = 157,
    SharedSubscriptionsNotSupported = 158,
    ConnectionRateExceeded = 159,
    MaximumConnectTime = 160,
    SubscriptionIdentifiersNotSupported = 161,
    WildcardSubscriptionsNotSupported = 162
}