Multicast_Data_Reflector_(As_Server)

The Multicast Data Reflector sample can be run as either a server or a client. To test the Loopback feature in RT-TCP/IP, you could run both the server and client version of DataReflector.rtss image on the same computer.

Run as Server

As a server, or a multicast sender, the program creates a repeatable timer and the timer handler routine, Broadcast, does the following:

Get a UDP socket.
Set the IP Time-To-Live appropriately.
Set the default interface multicast datagrams should be sent from.
Send to the application's multicast address and port number.
Shut down and close the socket when complete.

NOTE: The sender does not have to join a multicast group.

RTSS Usage

RTSSrun DataReflector.rtss I=IP_address u [options]

You must specify the "Multicast IP address" (m=224.5.6.7).

Client RTSS Usage:

RTSSrun DataReflector.rtss m=224.5.6.7 i=IP_address u [options]

Server RTSS Usage:

RTSSrun DataReflector.rtss m=224.5.6.7 i=IP_address f=IF_address [options]

NOTE: All Data Reflector command-line options are case-sensitive.

Option	Description
p=	Port number (default is 9999)
m=	Multicast IP address in dot notation
f=	Default interface for sending Multicast packets
n=	Client name (default is EmptyName)
r=	Rate of Multicast in seconds (default is 5 seconds)
i=	Local IP address in dot notation.
u	When this option is used the Data Reflector sample is run as a client. When it is not used, it is run as a server.
t=	Time-To-Live value (default is 1)
k=	Kill all clients
/?	Displays usage