Disable Multicast traffic on a 5520

[boston1630]

All,

We recently upgraded our 5500 infrastructure to 6.1.2. In doing so we accidentally removed a multicast configuration that prevented all ports from receiving multicast traffic.

I'm sure this is a small thing, but could someone let me know how to disable multicast traffic on a 5520?

Thanks!

-Mike

[bwilliams2]

I know you can disable Unknown Multicast. If you go to DM and then to VLAN - VLAN's - Unknown Multicast Filtering and enable it, you will stop unknown multicast.

[boston1630]

I asked our reseller and this is the answer that I received:

In JDM > VLAN > Snoop > Specific VLAN > Enable > "True"

I was trying to find this setting through the Multicast and IGMP settings. Sometimes I like the JDM, but other times the placement of certain items is extremely problematic.

@bwilliams2, you're right, there's also the tab for "Unknown Multicast Filtering" that can be found under the VLAN selection.

Thanks!

-Mike

[bwilliams2]

Right...IGMP does not disable multicast from reaching the switch, rather it enables the switch to listen to IGMP conversations and put the switch ports into a list so only a port requesting the multicast will receive the multicast.