General discussion

multicast stream filtering

I have a Netgear JGSM7224 model is connected with Cisco switch &coming 21 multicast streams.i want to take a single multicast stream from any port of Netgear switch.What i do ?

21 different multicast coming to net gear JGSM 7224 switch.
but i need to filter only one multicast stream from any port of the switch.

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This one might be easy.

As streams are on demand, you place the client on that port and it will take a single stream as you wish.

While you didn't ask, I wonder if you are aware how "switched hubs" work. That is, if there is no demand for content, the content is not going to be sent.


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What you need to do is enable IGMP snooping on the switch.

The switch should then monitor the IGMP messages between the end devices and the router and only send the multicast to ports that have active listeners on it.

Now if you mean you have multiple feeds on the same exact multicast group address then your equipment must support IGMP v3. This lets the client request only traffic from a particular source address. Either your switch has this ability or it does not. All the setting and filtering is done in the PC application.

The cisco switch should also have IGMP on so if nobody wants a feed it does not send any traffic to the netgear

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