IPv4 and IPv6 multicast routing, private VLANs, and egress VLAN translation are supported on EOS, but on prior releases and on certain platforms they did not work correctly when used in combination.  In those cases, routed multicast packets that egress on an interface with VLAN translation or on a private VLAN would not egress on the correct VLAN.  The configured VLAN translation or private VLAN would not be applied.

Private VLAN is a feature that segregates a regular VLAN broadcast domain while maintaining all ports in the same IP subnet. There are three types of VLAN within a private VLAN