I don't know if it's being forwarded to all vLANS Dane. All I know is that there are multicast packets (multicast addr 225.0.0.250) from [IOSubsystem1] on one switch being forwarded to [IOSubsystem2] on a separate switch. The only thing physically connecting these two switches is cable from each one's [SimvLAN] going to the [SimvLAN] on a separate development lab switch. See illustration below. When I pull the plug on the development network connection, the data stream corruption ceases - packets are no longer forwarded.

[Switch 1|I/OvLAN1]->[LinuxHost1]

[Switch 1|I/OvLAN1]->[IOSubsystem1]

[Switch1|SimvLAN]

[Switch9|SimvLAN]----------------->[DevHost]

[Switch2|SimvLAN]

[Switch 2|I/OvLAN2]->[LinuxHost2]

[Switch 2|I/OvLAN2]->[IOSubsystem2]

I have configured an IGMP Snooping Querier on one of the GS716Tv3 switches [Switch1]. I used IP address 192.168.55.100 for the querier address, an available address from the network on the affected vLAN.

In "Querier vLAN Configuration" I added vLAN 6 [IOvLAN1], the affected vLAN.

Then in "IGMP Snooping vLAN Configuration" I added vLAN 6 [IOvLAN1].

I'm not sure where to go from here, though. It looks like everything I've done up to now is geared toward identifying and tracking multicast traffic. How do I actually tell the switch to keep its multicast traffic ONLY on the 3 ports that comprise vLAN 6 [IOvLAN1]?

Thank you for your help!

Cal Webster

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