- Blue, 1500 points or more
Does IGMP snooping work with Q in Q 802.1ad(dot1q tunneling)? I have searched extensively but can't find a clear answer.
I am on the customer side, and my testing suggests that either snooping is working on the carrier side or flooding is restricted to the inner tagged VLAN originating the multicast. I set up a multicast stream on one VLAN and do not see it (based in show interface input and multicast packet counts)at other sites on different VLANs.
My concern is that multicast traffic might be flooded to all ports assigned to our service provider VLAN resulting in problems for low bandwidth ports. The service provider core is using 6509s, with 3550s or Ethernet over copper modems as CPE equipment.
We are using IP PIM sparse mode with all Q in Q VLANs set up as point to point routing links.
I also posted this in Service Providers/Metro.