Disclaimer: I really don't get multicast and all the terminology, but I do know the IGMP Snooping on Mikrotik kills all TVs up- and downstream, while HP Arubas don't.
On HP (Aruba 2530), I just enable "ip igmp" on the VLAN. Everything works as intended.
On MikroTik, I enable IGMP Snooping on VLAN and also under "System". If anybody knows the difference/correlation, please do enlighten me.
Anyhow, the huge problem. When I turn both these checkboxes on (one on vlan + under System tab), the Mikrotik takes the role as Mrouter on my core router upstream! I see this on the Cisco core C6509e, and suddenly the Mikrotik, currently CRS317, takes the role as mrouter. (Command on Cisco: show ip igmp snooping mrouter, returns the interface where the MT switch is. With only 1 TV connected.) What's up with that? Now all the TVs in my entrire network, up- and downstream, tries to ask the Mikrotik for TV channels, which obviously breaks the whole TV system.
When turning off IGMP snooping, all TVs up- and downstream works again, but now downstream from MT it's going to flood multicast, which is kinda what IGMP should stop.
Isn't this really PIM, Layer3-stuff, and not L2 IGMP Snooping? Or is there a L3 IGMP snooping, and that's what MT uses?
UPDATE: It's IGMP Querier role, which is a L3/L2 role..
Can anyone please tell me how to just enable L2 IGMP Snooping without breaking hundreds of TVs again? Thanks in advance!