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I have my own application(based on VLC Library). It's used to multicast a stream from server to client via the mmsh protocol. It streams 1 file from the server to 2 clients.

  • How can I monitor the multicast stream's bandwidth to make sure that if there are 2 clients or more, I will only use the bandwidth equal to one stream

  • Do I need a special router/configuration for this? If so. please tell me how I would be able to configure it.

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There are a number of traffic monitoring tools that can do this. MRTG and Cacti are two of the most commonly used ones.
There are also a number of commercial solutions available.

All of these rely on your system supporting SNMP or some other means of reporting the bandwidth being used...

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