Thread: how to send udp packet inorder to compute packet loss ?

Why not use TCP instead then?

Have a look at Apache MINA - Index for some nice tools for networking

// Json

Because I don't mind to loss the packet.
so do you know how to send packet to server ?

Have a look at Writing a Datagram Client and Server (The Java™ Tutorials > Custom Networking > All About Datagrams)

// Json

json~
thanks for your help!
i have write client connect server , but i don't know how to send packet to server ?
i am require to play the RTP (audio) packet that are comming from the RTP server throught UDP connection ,
how to send RTP packet to server inorder to reply the packet loss to client ?

As simple example have a look at http://java.sun.com/docs/books/tutor...verThread.java

Here is an extract of the code.

    public void run() {
 
        while (moreQuotes) {
            try {
                byte[] buf = new byte[256];
 
                    // receive request
                DatagramPacket packet = new DatagramPacket(buf, buf.length);
                socket.receive(packet);
 
                    // figure out response
                String dString = null;
                if (in == null)
                    dString = new Date().toString();
                else
                    dString = getNextQuote();
                buf = dString.getBytes();
 
		    // send the response to the client at "address" and "port"
                InetAddress address = packet.getAddress();
                int port = packet.getPort();
                packet = new DatagramPacket(buf, buf.length, address, port);
                socket.send(packet);
            } catch (IOException e) {
                e.printStackTrace();
		moreQuotes = false;
            }
        }
        socket.close();
    }

Above you can see that it takes a string in this case and puts it in the byte array buffer called buf. It then creates a DatagramPacket using this buf variable and then it sends the packet off using the socket.send method.

What you need to do us open up a stream to your file, read the file and while you are reading it, pass the data of the stream out as packets to the socket.

// Json

json :
thanks for you help!
but i am require to play the RTP (audio) packet that are comming from the RTP server throught UDP connection , do you have any example about this ?To the best of my knowledge , it's looks like have to using JMF , but i don't know how to using jmf ?