Renci.SshNet.ForwardedPortRemote.StartPort C# (CSharp) Method

        protected override void StartPort()
        {
            if (!ForwardedPortStatus.ToStarting(ref _status))
                return;

            InitializePendingChannelCountdown();

            try
            {
                Session.RegisterMessage("SSH_MSG_REQUEST_FAILURE");
                Session.RegisterMessage("SSH_MSG_REQUEST_SUCCESS");
                Session.RegisterMessage("SSH_MSG_CHANNEL_OPEN");

                Session.RequestSuccessReceived += Session_RequestSuccess;
                Session.RequestFailureReceived += Session_RequestFailure;
                Session.ChannelOpenReceived += Session_ChannelOpening;

                // send global request to start forwarding
                Session.SendMessage(new TcpIpForwardGlobalRequestMessage(BoundHost, BoundPort));
                // wat for response on global request to start direct tcpip
                Session.WaitOnHandle(_globalRequestResponse);

                if (!_requestStatus)
                {
                    throw new SshException(string.Format(CultureInfo.CurrentCulture, "Port forwarding for '{0}' port '{1}' failed to start.", Host, Port));
                }
            }
            catch (Exception)
            {
                // mark port stopped
                _status = ForwardedPortStatus.Stopped;

                // when the request to start port forward was rejected or failed, then we're no longer
                // interested in these events
                Session.RequestSuccessReceived -= Session_RequestSuccess;
                Session.RequestFailureReceived -= Session_RequestFailure;
                Session.ChannelOpenReceived -= Session_ChannelOpening;

                throw;
            }

            _status = ForwardedPortStatus.Started;
        }