Seting up a multicast server

Hi,
I have a windows media server. For some reason, i'm only able to stream unicast streams from that server. I want to know if a device (router or server) can get the unicast stream from this server and multicast it over the network. It will be my subscription point.
Thank you,
MP

Unicast-to-multicast streaming is a solution similar to stream splitting, except that in final delivery segment the stream is converted to multicast to minimize the bandwidth usage impact on the network and to minimize the load on the Content Engine. With unicast-to-multicast streaming, if you have a Content Engine in the same location as your clients, the Content Engine can acquire the stream as a single unicast stream over the WAN and convert it to a multicast in the LAN.

Similar Messages

Multicast server/client over wan

Ok, first of I am kinda new in programming network stuff.
Then I am gonna try to be clear in the things that I am trying to accomplish.
The environement.
I have a machine A that has 2 interfaces :
eth0 Link encap:Ethernet HWaddr 00:0F:20:96:CE:96
inet addr:192.168.1.49 Bcast:192.168.1.255 Mask:255.255.255.0
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:2328871 errors:0 dropped:0 overruns:0 frame:0
TX packets:355492 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:178361234 (170.0 Mb) TX bytes:34186479 (32.6 Mb)
Interrupt:11
eth2 Link encap:Ethernet HWaddr 00:04:23:45:74:EC
inet addr:192.168.2.2 Bcast:192.168.2.255 Mask:255.255.255.0
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:813915 errors:0 dropped:0 overruns:0 frame:0
TX packets:7538202 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:53318289 (50.8 Mb) TX bytes:1092719670 (1042.0 Mb)
Interrupt:15 Base address:0x3000 Memory:f7ee0000-f7f00000
lo Link encap:Local Loopback
inet addr:127.0.0.1 Mask:255.0.0.0
UP LOOPBACK RUNNING MTU:16436 Metric:1
RX packets:56496 errors:0 dropped:0 overruns:0 frame:0
TX packets:56496 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:0
RX bytes:7952617 (7.5 Mb) TX bytes:7952617 (7.5 Mb)
This machine is connected thru a router
The routers connects to a WAN with MULTICAST enabled
then another router to which the second machine is connected
MACHINE B
eth0 Link encap:Ethernet HWaddr 00:0F:20:96:0F:94
inet addr:192.168.1.58 Bcast:192.168.1.255 Mask:255.255.255.0
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:2322957 errors:0 dropped:0 overruns:0 frame:0
TX packets:363116 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:177550404 (169.3 Mb) TX bytes:33507499 (31.9 Mb)
Interrupt:30
eth2 Link encap:Ethernet HWaddr 00:04:23:45:78:90
inet addr:192.168.3.2 Bcast:192.168.3.255 Mask:255.255.255.0
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:160838 errors:0 dropped:0 overruns:0 frame:0
TX packets:6781 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:11450177 (10.9 Mb) TX bytes:746369 (728.8 Kb)
Interrupt:28 Base address:0x3000 Memory:f7ee0000-f7f00000
lo Link encap:Local Loopback
inet addr:127.0.0.1 Mask:255.0.0.0
UP LOOPBACK RUNNING MTU:16436 Metric:1
RX packets:158 errors:0 dropped:0 overruns:0 frame:0
TX packets:158 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:0
RX bytes:23916 (23.3 Kb) TX bytes:23916 (23.3 Kb)
The two machine are on different networks.
My goal is to have Machine A send multicast data thru eth2 to be sent in the wan and to be received by Machine B on eth2 too.
Obviously the two machine are on separated networks.
I have tried everything I could but I cannot get machine B to pickup the messages sent by A. It worked fine when on the same LAN but not over WAN.
The multicast address that I use it 239.55.55.80 and the port 4445.
I think I have a problem to link the interface to my app ( I used setInterface and setNetworkinterface but nithing.) Also I cannot firgure out if the things that I am doing wrong are on the server or the client.
Here is the code for the sever and client.
SERVER
package com.cme.multicastijector.server;
* Title: 
* Description: 
* Copyright: Copyright (c) 2004
* Company: 
* @author not attributable
* @version 1.0
import java.net.*;
import java.util.*;
public class MulticastOutputSocket {
private int m_multicastPort = 0;
private MulticastSocket m_multicastSocket = null;
private InetAddress m_interfaceAddress = null;
private InetAddress m_multicastAddress = null;
private InetSocketAddress m_inetSocketAddress = null;
private int m_bufferSize = 0;
private byte[] m_outputBuffer = null;
private DatagramPacket m_packet = null;
public MulticastOutputSocket(int portNumber,String interfaceAddress,String multicastAddress,int bufferSize) throws Exception{
System.out.println("\nStarting multicast output socket");
m_multicastPort = portNumber;
m_interfaceAddress = InetAddress.getByName(interfaceAddress);
m_multicastAddress = InetAddress.getByName(multicastAddress);
m_bufferSize = bufferSize;
m_inetSocketAddress = new InetSocketAddress(m_multicastAddress,m_multicastPort);
m_multicastSocket = new MulticastSocket (m_multicastPort);
// m_multicastSocket.joinGroup(m_inetSocketAddress,NetworkInterface.getByInetAddress(m_interfaceAddress));
m_multicastSocket.setNetworkInterface(NetworkInterface.getByInetAddress(m_interfaceAddress));
// m_multicastSocket.setLoopbackMode(false);
// m_multicastSocket.setTimeToLive(32);
Enumeration e = NetworkInterface.getNetworkInterfaces();
while (e.hasMoreElements()){
System.out.println(e.nextElement().toString());
System.out.println("Interface Address = " + m_interfaceAddress);
System.out.println("Multicast Address = " + m_multicastAddress);
System.out.println("Port = " + m_multicastPort);
System.out.println("BufferSize = " + m_bufferSize);
System.out.println("MulticastSockect initialized.\n");
public void sendData(String data) throws Exception{
m_outputBuffer = new byte[m_bufferSize];
m_outputBuffer = data.getBytes();
//m_packet = new DatagramPacket(m_outputBuffer, m_outputBuffer.length);
m_packet = new DatagramPacket(m_outputBuffer, m_outputBuffer.length, m_inetSocketAddress);
m_multicastSocket.send(m_packet);
public void closeSocket() throws Exception {
//m_multicastSocket.leaveGroup(m_multicastAddress);
//m_multicastSocket.leaveGroup(m_inetSocketAddress,NetworkInterface.getByInetAddress(m_interfaceAddress));
m_multicastSocket.close();
CLIENT
package com.cme.multicastijector.client;
* Title: 
* Description: 
* Copyright: Copyright (c) 2004
* Company: 
* @author not attributable
* @version 1.0
import java.io.*;
import java.net.*;
import java.util.*;
public class MulticastClient {
private Properties m_prop = null;
private MulticastSocket m_multicastSocket = null;
private InetAddress m_interfaceAddress = null;
private InetAddress m_multicastAddress = null;
private InetSocketAddress m_inetSocketAddress = null;
private int m_multicastPort = 0;
private int m_bufferSize = 0;
private int m_previousSeq = 0;
private boolean m_isFirst = true;
private int m_actualseq = 0;
private int m_msgLost = 0;
private int m_messagesReceived = 0;
private Object m_seqLock = new Object();
private Object m_msgLock = new Object();
public MulticastClient(Properties properties) throws Exception{
m_prop = properties;
init();
new TpsCalculator();
receiveData();
private void init() throws Exception{
m_multicastPort = Integer.parseInt(m_prop.getProperty("MULTICAST_PORT"));
m_multicastAddress = InetAddress.getByName(m_prop.getProperty("MULTICAST_ADDRESS"));
m_interfaceAddress = InetAddress.getByName(m_prop.getProperty("INTERFACE_ADDRESS"));
m_bufferSize = Integer.parseInt(m_prop.getProperty("BUFFER_SIZE"));
m_inetSocketAddress = new InetSocketAddress(m_multicastAddress,m_multicastPort);
m_multicastSocket = new MulticastSocket (m_multicastPort);
// System.out.println("DEFAULT INTERFACE : " + m_multicastSocket.getInterface() );
// System.out.println("DEFAULT INTERFACE : " + m_multicastSocket.getNetworkInterface() );
// m_multicastSocket.setInterface(m_interfaceAddress);
// m_multicastSocket.setNetworkInterface(NetworkInterface.getByInetAddress(m_interfaceAddress));
// System.out.println("DEFAULT INTERFACE : " + m_multicastSocket.getInterface() );
// System.out.println("DEFAULT INTERFACE : " + m_multicastSocket.getNetworkInterface() );
m_multicastSocket.joinGroup(m_inetSocketAddress,NetworkInterface.getByInetAddress(m_interfaceAddress));
// m_multicastSocket.joinGroup(m_multicastAddress);
System.out.println("Interface Address = " + m_interfaceAddress);
System.out.println("Multicast Address = " + m_multicastAddress);
System.out.println("Port = " + m_multicastPort);
System.out.println("BufferSize = " + m_bufferSize);
private void receiveData() throws Exception{
try {
String received = null;
byte[] inputBuffer = null;
DatagramPacket packet = null;
while(true){
inputBuffer = new byte[m_bufferSize];
packet = new DatagramPacket(inputBuffer, inputBuffer.length, m_inetSocketAddress);
m_multicastSocket.receive(packet);
received = new String(packet.getData());
m_messagesReceived++;
synchronized(m_seqLock){
m_actualseq = getSequence(received);
checkSequence(m_actualseq);
catch (Exception ex) {
ex.printStackTrace();
m_multicastSocket.close();
private int getSequence(String data){
return Integer.parseInt(data.substring(0,15));
private void checkSequence(int actual){
if(m_isFirst){
m_isFirst = false;
m_previousSeq = actual;
else{
if ( (m_previousSeq + 1) != actual) {
synchronized(m_msgLock){
m_msgLost += (actual - m_previousSeq)-1;
m_previousSeq = actual;
private class TpsCalculator extends TimerTask{
private Timer aTimer;
private int previousSeq = 0;
private int tpsSeq = 0;
private int tpsRec = 0;
private boolean first = true;
private int msglost = 0;
private int previousMsgRec = 0;
private int actualMsgRec = 0;
public TpsCalculator(){
aTimer = new Timer();
aTimer.scheduleAtFixedRate(this,new Date(),1000);
System.out.println("#####################################################");
System.out.println("time,tps from sequences, actual tps,total msg received,msglost");
public void run(){
actualMsgRec = m_messagesReceived;
tpsRec = actualMsgRec - previousMsgRec;
previousMsgRec = actualMsgRec;
if(first){
synchronized(m_seqLock){
previousSeq = m_actualseq;
first = false;
else{
synchronized(m_msgLock){
msglost = m_msgLost;
m_msgLost = 0;
synchronized(m_seqLock){
tpsSeq = m_actualseq - previousSeq;
previousSeq = m_actualseq;
System.out.println(new Date()+","+tpsSeq + "," + tpsRec + "," + m_messagesReceived + "," + msglost);
Thanks for your help.
This is really important for the project I am working on.
Thanks again

never Mind I found the issue
The default value for TTL is 1.
I was going thru multiple routers so I incremented the value and it worked
thanks

Screen capture as video and multicasting

halo everyone, i am planing to do a multicast program which capture the local screen as video and transmit to all client.
It is one way communication which is clients are always only on listening mode(It cannot be stop). Server can choose to broadcast or stop the broadcast.
eg software: TightProjector / VNC
Currently my multicast connection is done, all the client can get message from multicast server.
I stuck on how to capture local screen as video and transmit to all the client.
Any method for me to start with it?
What should i looking for??
thx in adv
:D

morgalr wrote:
If you're looking for screen shots, you'll be looking into Robot...once you have the screenshots. ImageIO can turn the images into JPEGs, and the JMF can turn JPEGs into a MOV.

Screen capture as video and multicast

halo everyone, i am planing to do a multicast program which capture the local screen as video and transmit to all client.
It is one way communication which is clients are always only on listening mode(It cannot be stop). Server can choose to broadcast or stop the broadcast.
eg software: TightProjector / VNC
Currently my multicast connection is done, all the client can get message from multicast server.
I stuck on how to capture local screen as video and transmit to all the client.
Any method for me to start with it?
What should i looking for??
thx in adv
:D

I'm having some problem with the picture receiving.
Below is my codes:
Server-
import java.awt.*;
import java.awt.image.*;
import java.awt.event.*;
import java.net.*;
import java.io.*;
import javax.imageio.*;
import javax.swing.*;
public class robottestSent
     public static void main(String[] args) throws AWTException, IOException
          Dimension screenSize = Toolkit.getDefaultToolkit().getScreenSize();
          Rectangle screenRectangle = new Rectangle(screenSize);
          Robot robot = new Robot();
          ByteArrayOutputStream baos = new ByteArrayOutputStream();
          BufferedImage image = robot.createScreenCapture(screenRectangle);
          ImageIO.write(image, "png", baos);
          baos.flush();
          byte[] resultImage = baos.toByteArray();
          baos.close();
          //int wahaha = testtest.intValue();
          System.out.println(resultImage);
          try
               DatagramSocket socket = new DatagramSocket();
               //byte buffer[] = new byte[1024];
               InetAddress address = InetAddress.getByName("230.0.0.1");
               DatagramPacket packet = new DatagramPacket(resultImage, resultImage.length, address, 9013);
               socket.send(packet);
               socket.close();
          catch(Exception exp)
                    System.err.println(exp); //New added
}Client-
import java.awt.*;
import java.awt.image.*;
import java.awt.event.*;
import java.net.*;
import java.io.*;
import javax.imageio.*;
import javax.swing.*;
public class robottestGet
    public static void main(String[] args)
         try
              while(true)
                    MulticastSocket socket = new MulticastSocket(9013);
                    InetAddress address = InetAddress.getByName("230.0.0.1");
                    socket.joinGroup(address);
                    byte message[] = new byte[1024];
                    DatagramPacket packet = new DatagramPacket(message, message.length);
                    System.out.println("test_1");
                    socket.receive(packet);
                    System.out.println("test_2");
                    BufferedImage newImage = ImageIO.read ( new ByteArrayInputStream ( packet.getData() ) );
                    JDialog window = new JDialog();
                    Container windowContent = window.getContentPane();
                    JLabel label = new JLabel(new ImageIcon(newImage));
                    JScrollPane pane = new JScrollPane(label);
                    windowContent.add(pane, BorderLayout.CENTER);
                    window.setSize(300, 300);
                    window.show();
         catch(Exception exp)
              System.err.println(exp);
}The server sent a PNG format image raw byte to client, but at the client side, it appear
javax.imageio.IIOException: Error reading PNG image dataThe problem is, when i change the format to others like "jpeg/bmp", the transmition failed, it appear
java.net.SocketException: The message is larger than the maximum supported by the underlying transport: Datagram send failedWhy is that problem actually? T.T
Edited by: nick_khor on Nov 20, 2009 3:46 AM

Button disabled due to server waiting

i had made a GUI for running a rmi server and instantiating a multicast server.
i used a button for each purpose.
the rmi server keeps waiting for any requests from the client side.
so the execution of the other part of the program is disabled when i press the first button for running the rmi server.
the button for running multicast server is disabled. i cannot access it
//first button
private void clicked(java.awt.event.ActionEvent evt) {
        GoodWindowsExec obj4= new GoodWindowsExec();
        obj4.running("start rmiregistry");
        obj4.running("javac SampleServerImpl.java");
        obj4.running("java SampleServerImpl");
//second button
private void retrieve(java.awt.event.ActionEvent evt) {
        GoodWindowsExec obj5= new GoodWindowsExec();
        obj5.running("javac MulticastClient.java");
        obj5.running("java MulticastClient");
    }                        what should be done?

Use Threads. Read the section from the Swing tutorial on Concurrency for more information.

Multicast not working SCCM 2012 SP1

Hi,
Am having issues getting multicast working with SCCM 2012 SP1 / Server 2008 R2.
We have followed all the guidelines in this forum but still no joy
- Multicast setting enabled on DP
- Multicast Enabled on OS Image
- Task Sequence set to down content when needed
- SCCM DP and Client are on same VLAN to rule out routing issues
- Network team confirm all ok there end anyway
- Boot images / WDS and PXE are all healthy
The PC Boots via PXE ok and runs our windows 7 task sequence, when the task sequence starts it says "Opening multicast session" for about 5 seconds and then disappears. Its as though it tries but then fails. Unicast works fine.
I then set the OS image to "Only use Multicast" which produces the following error in the client SMSTS.log
reply has no message header marker
Failed to open session request (Code 0x80004005)
ApplyOperatingSystem 28/01/2014 12:53:25
1944 (0x0798)
ClientRequestToMCS::DoRequest failed. error = (0x80004005).
ApplyOperatingSystem 28/01/2014 12:53:25
1944 (0x0798)
Request to MCS 'SererName' failed with error (Code 0x80004005).
ApplyOperatingSystem 28/01/2014 12:53:25
1944 (0x0798)
Multicast OpenSessionRequest failed (0x80004005).
ApplyOperatingSystem 28/01/2014 12:53:25
1944 (0x0798)
Sending status message: SMS_OSDeployment_PackageDownloadMulticastStatusFail
ApplyOperatingSystem 28/01/2014 12:53:25
1944 (0x0798)
Any idea on how we get this working ?
Thanks

The logs related to multicast that you'll see on the site server are:
mcsisapi.log
Records information for multicast package transfer and client request responses.
Site system server
mcsprv.log
Records multicast provider interaction with Windows Deployment Services (WDS).
Site system server
MCSSetup.log
Records details about multicast server role installation.
Site system server
MCSMSI.log
Records details about multicast server role installation.
Site system server
Mcsperf.log
Records details about multicast performance counter updates.
Site system server
http://technet.microsoft.com/en-us/library/hh427342.aspx
>> Network team confirm all ok there
end anyway
This is something to double and triple check. If Multicast is not enabled on the routers/switches properly, this will not work. If there is a firewall between the client and the distribution point that doesn't have the Multicast ports open, this
will not work.
Client -- > Distribution Point Configured for Multicast
Description
UDP
TCP
Server Message Block (SMB)
445
Multicast Protocol
63000-64000
http://technet.microsoft.com/en-us/library/hh427328.aspx
I hope that helps,
Nash
Nash Pherson, Senior Systems Consultant
Now Micro -
My Blog Posts
If you've found a bug or want the product worked differently,
share your feedback.
<-- If this post was helpful, please click "Vote as Helpful".

Broadcasting/multicasting UDP

Is it possible to broadcast UDP packets directly from the host machine's IP address on a selected port so that anyone listening on that IP address/port can receive them? If not, how should a server go about finding an appropriate IP address/port within the 224.0.0.0 - 239.255.255.255 range to send packets on?

Dear Josh,
You send the UDP paket to a multicast (class D) IP address/port and the rest is the duty of the multicasting server.
The mechnism of multicasting and how could Java programmer make use of it is some thing missed in the documents availabe. I've searched for that but all I got is an RMS "Reliable Multicast Service" Libraries like:
JRMS at www.experimentalstuff.com
JGroups at www.JGroups.org
But these are libraries and focusing on the reliable multicast. If we need to multicast an audio stream we need only basic multicast using "MulticastSoket" from java.net package.
But again the system is no only a set of API's. The question is HOW to build a multicasting audio service using java and whta do we need with java??
the answer could be of great help
Ahmad Khalafallah
[email protected]

Load balance multicast stream

Hi, i have the same stream coming from 2 different
directions. The 2 routers in the multicast server are using hsrp. My question is, can i load balance the stream?The method in use is SSM.

PIM (dense/sparse) will not load balance multicast packets due to prune behavior to prevent duplicate packets. However, GRE tunnel(s) can be used to "load balance" multicast traffic. There is also another global command "ip multicast multipath" which allows load balancing But it will only load balance If multiple sources exist for the same group(s):

Linux ntp server with cisco 3850

hi all
i'm trying to make sync with linux ntp with cisco 3850 here is the what i did
linux centos 6.5 (on the ucs virtual machin) . this is a ntp server
ip 10.1.1.251
===================================================
For more information about this file, see the man pages
# ntp.conf(5), ntp_acc(5), ntp_auth(5), ntp_clock(5), ntp_misc(5), ntp_mon(5).
driftfile /var/lib/ntp/drift
# Permit time synchronization with our time source, but do not
# permit the source to query or modify the service on this system.
restrict default kod nomodify notrap nopeer noquery
restrict -6 default kod nomodify notrap nopeer noquery
# Permit all access over the loopback interface. This could
# be tightened as well, but to do so would effect some of
# the administrative functions.
restrict 127.0.0.1
restrict -6 ::1
# Hosts on local network are less restricted.
restrict 10.1.1.0 mask 255.255.255.0 nomodify notrap
# Use public servers from the pool.ntp.org project.
# Please consider joining the pool (http://www.pool.ntp.org/join.html)
#server 1.centos.pool.ntp.org iburs
#server 2.centos.pool.ntp.org iburst
#server 3.centos.pool.ntp.org iburst
server 127.127.1.0
fudge 127.127.1.0 stratum 2
#broadcast 192.168.1.255 autokey        # broadcast server
#broadcastclient                        # broadcast client
#broadcast 224.0.1.1 autokey            # multicast server
#multicastclient 224.0.1.1              # multicast client
#manycastserver 239.255.254.254         # manycast server
#manycastclient 239.255.254.254 autokey # manycast client
# Enable public key cryptography.
#crypto
includefile /etc/ntp/crypto/pw
# Key file containing the keys and key identifiers used when operating
# with symmetric key cryptography.
keys /etc/ntp/keys
# Specify the key identifiers which are trusted.
#trustedkey 4 8 42
# Specify the key identifier to use with the ntpdc utility.
#requestkey 8
# Specify the key identifier to use with the ntpq utility.
#controlkey 8
# Enable writing of statistics records.
#statistics clockstats cryptostats loopstats peerstats
and cisco 3850 configured this one
ntp server 10.1.1.241
and
show ntp status
clock is unsynchronized, stratum 16, reference is null
why...didn't work.. somebody help me..

Is there a typo in your post or configuration? You show the NTP server IP address as 10.1.1.251, but the router configured to use 10.1.1.241.
Regards

SG500 Multicast-TV

I am trying to get multicast across VLANs working on my SG500 and since it doesn't have PIM, I think the Multicast-TV option can work.
However, now my clients are getting switched to the Multicast-TV VLAN instead of the regular VLAN they are assigned.
Example:
ip igmp snooping vlan 10 multicast-tv 234.5.6.7
ip igmp snooping vlan 10 multicast-tv 239.192.4.237
ip igmp snooping vlan 10 multicast-tv 239.255.250.250
ip igmp snooping vlan 10 multicast-tv 239.255.255.250
ip igmp snooping vlan 100 multicast-tv 234.5.6.7
ip igmp snooping vlan 100 multicast-tv 239.192.4.237
ip igmp snooping vlan 100 multicast-tv 239.255.250.250
ip igmp snooping vlan 100 multicast-tv 239.255.255.250
interface gigabitethernet1/1/32
description "VLAN 100 - Client"
service-acl input "Access Port Security IPv4" "Access Port Security IPv6"
switchport mode access
switchport access vlan 100
switchport access multicast-tv vlan 10
interface Port-channel1
description "VLAN 10 - Alpha"
switchport mode access
switchport access vlan 10
switchport access multicast-tv vlan 100
Now, the client on VLAN 100 has unexpectedly gotten a DHCP address from VLAN 10 and is unable to access anything outside VLAN 10.

I'm really just trying to multicast over VLANs.
I thought this tech included in these switches called Multicast-TV, could be used to bridge this gap somewhat.
I just want an untaged multicast server on VLAN 10 to multicast to an untaged client on VLAN 100.
It is completely unreasonable for the client on VLAN 100 to be silently switched to another VLAN and left with no communication outside that VLAN.
I also did not get that impression when I was attempting to understand this technology from the Admin Guide.
What happened was I started a server on VLAN 10.
Then started a client on VLAN 100.
Nothing worked...
Stopped and started the server and client a few times and it started to work.
Little did I know my client was magically switch to VLAN 10.
Removed the "switchport access multicast-tv" statements and rebooted the clients.
Back to normal.

How to set up the digital signature for xi server

dear all,
these days i need to implement a interface using the digital signature technology to enable it's security transition.
we are going to use the digest sign with partner.
Could anyone of you tell me the detailed steps concerning the seting up at xi server for this pupose ?
Thanks a lot !

This is a really urgent request,
does anyone have the experience on this, please give me some hints ,thanks !!
BR
ZhouHui

Enabling Multicast

Hello,
I have a Cisco 7603 router, on which I've created a VLAN and assigned an IP address to it. I've also assigned a secondary IP since hosts on this VLAN are not all on one single IP network. The VLAN has had three gigabit ethernet ports associated with it. My question is what would I need to do to allow multicast traffic between a server on one of these ports to clients on another port? The server and clients are all on the same network as the secondary IP address assigned to the VLAN. Thank you for any assistance,
Bob Kirk

Here are some of the relevant global settings;
ip multicast multipath
no mls ip multicast aggregate
no mls ip multicast non-rpf cef
mls flow ip destination-source
mls qos statistics-export interval 300
mls qos statistics-export delimiter |
spanning-tree extend system-id
and some settings particular to the VLAN in question;
interface Vlan190
ip address 192.168.1.254 255.255.0.0 secondary
ip address 192.139.190.1 255.255.255.0
ip helper-address 192.139.190.19
no ip redirects
no ip unreachables
no ip proxy-arp
ip pim sparse-dense-mode
ip igmp snooping querier
ip cgmp
Here (to summarize the whole mess) are the IP addresses/masks/gateways of the devices;
Multicast server (has one NIC);
Primary - 192.139.190.51/24 gw 192.139.190.1
Secondary - 192.168.2.253/16 gw 192.168.1.254
Clients;
Client 1 - 192.168.2.241/16 gw 192.168.1.254
Client 2 - 192.168.2.242/16 gw 192.168.1.254
And the layout: The Server resides on module 3 port Gi3/1 and the clients are on module 3 port Gi3/4. Both ports are set as following;
interface GigabitEthernet3/x
description "xxxxx"
no ip address
switchport
switchport access vlan 190
switchport mode access
Thank you,
Bob Kirk

Detecting IP Multicast Failure in Flash

I have implemented player with IP Multicast using Adobe flash media server . I have two multicast servers , so if one multicast server fails I want to play stream from another multicast server . But In case of IP Multicast a connection to server is never made so how can I detect a failure in that case inside flash player ?

I would recommend taking a look at the Chromium database to see if this has been reported. If not, please go ahead and open a new bug report.
How do I report a bug against Flash Player for Google Chrome?

Media Server Consuming Memory

My project is forwarding an RTMP stream to an RTMFP (multicast stream) using a server action script. In forwarding this stream, the AMSCore process keeps consuming memory. This consumption of memory requires the system to be rebooted repeated. How can this be prevented?

I did not think I could use the sample multicast application with my
project's software. Instead, I compared the outbound NetConnection and
NetStream code in the sample application with the outbound NetConnection
and NetStream code in my project's multicast server actionscript. One of
differences I discovered is that my project's application connected to the
rtmfp group with the following call:
nc_connect..connect("rtmfp:");
while the sample called:
nc.connect(resetUriProtocol(streamContext.client.uri, "rtmfp"));
Therefore, in my project's actionscript, I replaced connection to the
"rtmfp:" serverless group with a connection to the application uri:
net_connect.connect("rtmfp://127.0.0.1:" + port + "/" + application.name)
This change fixed the excessive memory consumption. So, why does the
connection to serverless network endpoint consume memory on Windows Server
2008 R2 to the point that all of the virtual memory is used or it crashes
the system?
Scott F. Wilson
Principal Software Engineer
Raytheon SAS
Marlborough, MA 01752
Phone: 508-490-3123
Fax: 508-490-1366

Multicast chat program

Hi,
The problem I am having is when checking to see if two specific users are using the chat program as I want them to have a separate multicast session. The if statements work and the client sends the message. The server just doesn't seem to relay it back to the client in either case.
The code for the client part is below:
if (userName.startsWith ("Steve") || userName.startsWith ("David"))
MulticastSocket socket = new MulticastSocket (4447);
InetAddress address = InetAddress.getByName ("233.0.0.13");
          socket.joinGroup (address);
else
MulticastSocket socket = new MulticastSocket (4449);
InetAddress address = InetAddress.getByName ("232.0.0.13");
          socket.joinGroup (address);
And the server part:
if (received.startsWith ("Steve") || received.startsWith ("David"))
InetAddress group = InetAddress.getByName ("233.0.0.13");
packet = new DatagramPacket (buf, buf.length, group, 4447);
socket.send (packet);
else
InetAddress group = InetAddress.getByName ("232.0.0.13");
packet = new DatagramPacket (buf, buf.length, group, 4449);
socket.send (packet);
Does anyone have any ideas??

Chat Client Full Code
public class MulticastChatClient extends MulticastChatClientGUI
public ButtonHandler bHandler;
     DatagramSocket socket;
     String ipAddress;
String userName;
String passWord;
String msgToBuf;
String logMsg= "";
     String checkBye;
     Boolean authenticatedUser;
     String deNullString (String s)
     //Function to get rid of garbage at the end of the buffer prior to
     //displaying it on the screen and saving to file.
          String result = "";
          int i = 0;
          while (s.charAt(i) != '\0')
               result = result + s.charAt(i);
               i ++;
          return result;
     public MulticastChatClient (String title)
          super (title);
          bHandler = new ButtonHandler();
     sendButton.addActionListener( bHandler );
     try
               socket = new DatagramSocket ();
          catch (IOException e)
private class ButtonHandler implements ActionListener
     public void actionPerformed (ActionEvent event) //throws IOException
               // Get a datagram socket
               try
                    byte[] buf = new byte[128];
                    InetAddress address = InetAddress.getByName (ipAddress);
                    //Put username before the message the user sends
                    msgToBuf=userName + " Says >> ";
                    //Populate buffer with text in the txArea
                    msgToBuf=msgToBuf + txArea.getText();
                    buf = msgToBuf.getBytes();
     //Open up port 4448 and prepare to send the packet
                    DatagramPacket packet = new DatagramPacket (buf, buf.length, address, 4448);
                    System.out.println ("About to send packet");
                    //Send the packet to the server
                    socket.send(packet);
                    System.out.println ("Packet sent");
catch (IOException e)
                    //Error handling
          System.err.println("Couldn't get I/O for the connection to the server");
     System.exit(1);
     public void run () throws IOException
     //Welcome user, ask for their name
          userName = JOptionPane.showInputDialog(null,"Please enter your name...",
          "Welcome To Chat V1.0",JOptionPane.QUESTION_MESSAGE);
          //Password verification
          //Promt user to enter password
          passWord = JOptionPane.showInputDialog(null,"Please enter password...",
          "User Authentication",JOptionPane.QUESTION_MESSAGE);
          if(passWord.equals ("letmein"))
               //Correct password
               authenticatedUser = true;
          else
               //Wrong password
               authenticatedUser = false;
               //Inform the user and close the application
               JOptionPane.showMessageDialog(null, "Wrong Password, Chat program ended",
               "Authenticaion Failure",JOptionPane.INFORMATION_MESSAGE);
               System.exit(1);
          //User To Enter IP Address
          ipAddress = JOptionPane.showInputDialog(null, "Thanks " userName "... Please Enter Server IP",
          "Connection Details",JOptionPane.QUESTION_MESSAGE);
          // set up connection to multicast server
if (userName.startsWith ("Steve") || userName.startsWith ("David"))
MulticastSocket socket = new MulticastSocket (4447);
InetAddress address = InetAddress.getByName ("233.0.0.13");
          socket.joinGroup (address);
else
MulticastSocket socket = new MulticastSocket (4449);
InetAddress address = InetAddress.getByName ("232.0.0.13");
          socket.joinGroup (address);
          while (true)
               // send request
               byte[] buf = new byte[128];
               DatagramPacket packet = new DatagramPacket (buf, buf.length);
               socket.receive (packet);
               System.out.println ("Received packet");
               // display response
               String received = new String (packet.getData());
               System.out.println ("Remote packet: " + received);
               logMsg = logMsg + "\n" + deNullString (received);
               checkBye = txArea.getText();
                    if (checkBye.equals ("Bye"))
                         try
                         //Create log file ClientMsg.log, outFile is used to operate on it
                         BufferedWriter outFile = new BufferedWriter (new FileWriter ("ClientMsg.log"));
                         outFile.write (logMsg);
                         outFile.close();
                         catch (IOException i){}
                    //Tell user the program is about to close
                    JOptionPane.showMessageDialog(null, "You terminated connection, Chat program ended",
                    "Session Info",JOptionPane.INFORMATION_MESSAGE);
                    System.exit(0);
     rxArea.setText (rxArea.getText() + "\n" + deNullString (received));
Chat Server Full Code:
public class MulticastChatServer
public static void main(String[] args) throws java.io.IOException
          //Open up socket and listen on port 4448
          DatagramSocket socket = new DatagramSocket (4448);
          DatagramPacket packet;
          //Variable to hold all messages
          String logMsg="";
          System.out.println ("Starting Multicast Chat Server");
          //Loop forever
while (true)
try
                    //Setup a 128 Byte array
byte[] buf = new byte[128];
// receive packet
          packet = new DatagramPacket (buf, buf.length);
          socket.receive (packet);
          InetAddress address = packet.getAddress ();
          int port = packet.getPort ();
          //Convert buffer into a string
          String received = new String (packet.getData());
          //Add the IP address to the packet received
          //received = "(" + address + ") " + received;
          //Print received message on the console
                    System.out.println (received);
                    //Put the data into the buffer
                    buf = received.getBytes ();
                    //Write message to the message log variable
                    logMsg = logMsg + "\n" + received;
                         try
                              //Create log file ClientMsg.log, outFile is used to operate on it
                              BufferedWriter outFile = new BufferedWriter (new FileWriter ("ServerMsg.log"));
                              //Write the contents of logMsg to the file
                              outFile.write (logMsg);
                              //Close the file
                              outFile.close();
                         catch (IOException i){}
          // multicast it
          if (received.startsWith ("Steve") || received.startsWith ("David"))
          System.out.println ("met");
          InetAddress group = InetAddress.getByName ("233.0.0.13");
packet = new DatagramPacket (buf, buf.length, group, 4447);
socket.send (packet);
System.out.println ("met2");
          else
InetAddress group = InetAddress.getByName ("232.0.0.13");
packet = new DatagramPacket (buf, buf.length, group, 4449);
socket.send (packet);
               catch (IOException e)
e.printStackTrace();
}

Seting up a multicast server

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