MATLAB DISTRIBUTED COMPUTING SERVER 4 - SYSTEM ADMINISTRATORS GUIDE Manual do Utilizador descarregar pdf (Página 48)

2 Netw ork Administration

The following example shows how to use the Java class inside MATLAB.

Start MATLA B on two machines (e.g.,

host1name and h ost2 name)forwhich

youwanttotestmulticast. IneachMATLABsession,enterthefollowing

commands:

m = com.mathworks.toolbox.distcomp.test.MulticastTester('239.1.1.1', 9999);

m.startSendingThread;

m.startListeningThread;

These instructions cause each MATLAB session to issue a stream of multicas t

test packets, and to listen for test packets. If multicast is working between

the machines, you see a stream of lines like the following:

0 : ho st1n ame : 0

1 : hos t2na me : 0

2 : hos t2na me : 1

3 : hos t2na me : 2

The number on the left in each string is the line number for the received

packet. The text in the center is the host from which the packet is received.

The number on the right is the packet number sent by the sending host. It is

normal for a host to report a test packet from itself.

If either machine does not receiv e a stream of test packets, or if the remote

host is not included in either stream, then multicast communication is not

operating properly.

To terminate the test stream, execute the following in both MATLA B sessions:

m.stopSendingThread;

m.stopListeningThread;

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MATLAB DISTRIBUTED COMPUTING SERVER 4 - SYSTEM ADMINISTRATORS GUIDE Manual do Utilizador Página 48