#WINDOWS UDP EXAMPLE CODE#
#WINDOWS UDP EXAMPLE WINDOWS#

when the application's main window is not a dialog PSysMenu->AppendMenu(MF_STRING, IDM_ABOUTBOX, strAboutMenu) IDM_ABOUTBOX must be in the system command range.ДЄSSERT((IDM_ABOUTBOX & 0xFFF0) = IDM_ABOUTBOX) ДЄSSERT(IDM_ABOUTBOX AppendMenu(MF_SEPARATOR) Add 'About.' menu item to system menu. ON_BN_CLICKED(IDCANCEL, &CSocketTestServerDlg::OnBnClickedCancel)Д«OOL CSocketTestServerDlg::OnInitDialog() Void CSocketTestServerDlg::DoDataExchange(CDataExchange* pDX)Д«EGIN_MESSAGE_MAP(CSocketTestServerDlg, CDialog) M_hIcon = AfxGetApp()->LoadIcon(IDR_MAINFRAME) : CDialog(CSocketTestServerDlg::IDD, pParent) SocketTestServerDlg.cpp : implementation fileД¬SocketTestServerDlg::CSocketTestServerDlg(CWnd* pParent /*=NULL*/ ) Virtual void DoDataExchange(CDataExchange* pDX) // DDX/DDV supportДЄfx_msg void OnSysCommand(UINT nID, LPARAM lParam)

#WINDOWS UDP EXAMPLE CODE#

The complete source code and executable linkes are given at the bottom of this pageД¬lass CSocketTestClientDlg : public CDialogД¬SocketTestClientDlg(CWnd* pParent = NULL) // standard constructorД®num GUI is designed with MFC dialog based application with multhithreading enabled on the server code. To kill the iperf server just press CTRL+C in your terminal and it will interrupt the process.I have come up with a Sample UDP Client / Server application. The example below will send 1GB (1024Ві) of data to the server and then stop Instead of running the test for a specific period of you can instruct Iperf to stop running after trasfering a certain amound of data. If you need to test for packet loss or other problems at a specific rate of bandwidth you can use the -b flag to specify the maximum throughput in bits/second. This will send data to the server, and receive data from the server simultaneously. If you want to test throughput both to and from the server at the same time you can use the -d option to run a bidirectional test. In UDP mode iperf defaults to 1Mb/s, you can tell it to use more bandwidth by using the -b flag followed by the number of bits/sec to send. If you want to test for jitter and packet loss then you should use UDP mode. To set a different TTL use the -T option on the client. You can also specify the destination address to be a multicast group, the default TTL for multicast is 1 (be careful). Instead you can use the interface counters on your switches. The cool thing about UDP mode is that you donвЂ™t have to use a server. Testing with UDP packets requires the -u flag on both the client and server. Make sure to use a capital P, lowercase p will specify a different port number to connect on. To enable parallel connections add the -P flag to the Iperf client parameters followed by the number of connections you want. The bandwidth of a single TCP session can be greatly affected by the size of the receive window and the latency of the link. Parallel connections can be useful if you need to saturate the bandwidth of a link. The -t option instructs the client to run the test for 30 seconds instead of the default of 10 seconds. The client will connect to the server on port 5001 using a TCP window size of 16KB. By default the server will use a TCP window size of 85.3KB. The simplest test you can do with Iperf is a basic TCP test. Running iperf -s will setup a basic Iperf server, you can also run Iperf in daemon mode by running iperf -D. In my examples IвЂ™m using 192.168.1.1 as the address of my Iperf server. By default Iperf is uni-directional and sends data from the client to the server. In order to use Iperf youвЂ™ll need to setup an Iperf server, Iperf clients can then connect to the server in order to run tests.

#WINDOWS UDP EXAMPLE WINDOWS#

Iperf is included with most Linux distributions but you can compile Iperf for windows if needed. Iperf is very powerful and can easily generate enough traffic to saturate a 1Gb, or 10Gb connection. Iperf is a network performance utility that can generate both TCP and UDP traffic for testing bandwidth, latency, and packet loss. In this post IвЂ™ll share my list of Iperf commands that I have found useful. Iperf is a very useful utility for network troubleshooting.

Windows udp example