CRS112 and IGMP snooping - problem

RouterOS Forwarding Protocols
1

Hello

CRS112-8G-4S with RouterOS 6.47.1

IPTV traffic without IGMP Snooping functionality enabled works fine. I plan to fill the remaining ports in the switch and organize the traffic.

If I set:

/interface bridge set 0 igmp-snooping = yes

I can see entries in:

/interface ethernet switch multicast-fdb print

But IPTV won’t start working properly - no picture.

IPTV arrives at CRS112 in vlan 675, then traffic is to go directly to the connected STBs without tagging.

My configuration:

/interface bridge
add name=SWITCH igmp-snooping = yes
/interface bridge port
add bridge=SWITCH interface=ether3
add bridge=SWITCH interface=ether5-STB-test pvid=675
add bridge=SWITCH interface=sfp12
/interface ethernet switch egress-vlan-tag
add tagged-ports=ether3,ether5-STB-test,sfp12 vlan-id=675
/interface ethernet switch egress-vlan-translation
add customer-vid=675 new-customer-vid=0 ports=sfp12,ether5-STB-test
/interface ethernet switch ingress-vlan-translation
add customer-vid=0 new-customer-vid=675 ports=sfp12,ether5-STB-test
/interface ethernet switch vlan
add ports=ether3,ether5-STB-test,sfp12 vlan-id=675

Can CRS112 handle IGMP snooping properly at all?

2

Which interface is which?

3

Hello.

ether3 is the interface towards the PIM router.
ether5 and sfp12 towards STB.

4

Have you upgraded the RouterBoard firmware also?

5

Yes of course. It was updated right after the software.

6

According to https://wiki.mikrotik.com/wiki/Manual:Interface/Bridge#Bridge_Hardware_Offloading bridge IGMP snooping does not work properly (whatever that means) on CRS1xx/2xx with VLAN switching setups.