Hello,
I am configuring a CRS309-1G-8S+IN. RouterOS is updated to v6.47.4.
IGMP snooping is enabled, and the following settings are applied for all switch ports:
fast-leave=yes
unknown-multicast-flood=no
Now I notice the following: When sending an IGMP join to the switch on one of the switch ports, the requested multicast is forwarded tot that switch port. However, after sending an IGMP leave on that same port, the multicast is still forwarded. Since fast-leave is on, the multicast data should not be forwarded anymore.
Is there a setting I am missing? Or is this an issue in the switch firmware?