remoting TCP/IP如何限制客户端登录数

服务器端注册
            IChannelReceiver tcpChnl = new TcpChannel(8080);
            ChannelServices.RegisterChannel(tcpChnl, false);           
            RemotingConfiguration.RegisterWellKnownServiceType(typeof(EDataAccess.DataPub), "Data.soap", WellKnownObjectMode.Singleton);客户端注册
    url = "tcp://XXX.XXX.XXX.XXX:8888/Data.soap";
                RemotingConfiguration.RegisterWellKnownClientType(typeof(DataAccess.Data), url); // 注册对象         
                data = (DataAccess.Data)Activator.GetObject(typeof(DataAccess.Data), url);
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目前有使用心跳包 Socket 等判断。 请高手解答目前限制客户端登录数有哪几种方法，各自的优缺点
有哪些