/// <summary>
/// Creates an underlying TCP connection
/// </summary>
/// <returns></returns>
private Task ConnectAsync()
{
// ReSharper disable once UseObjectOrCollectionInitializer
//create TCP connection
_client = new TcpClient();
//set buffer sizes
_client.SendBufferSize = _config.SocketSendBufferSize;
_client.ReceiveBufferSize = _config.SocketReceiveBufferSize;
//set keepAlive if requested
if (_config.SocketKeepAlive > 0) _client.SetKeepAlive((ulong)_config.SocketKeepAlive);
//set Linger State
var lingerState = _config.SocketSoLinger >= 0
? new LingerOption(true, _config.SocketSoLinger)
: new LingerOption(false, 0);
_client.LingerState = lingerState;
//connect within requested timeout
return _client.ConnectAsync(_node.Address, _config.Port, _config.SocketConnectTimeout);
}