EX4300 JunOS 17.3R3.10 Multicast QoS Issues

Hi All,

Having some issues getting QoS working on my EX4300, it is regarding Mulitcast traffic. I am trying to set up QoS so the video MS traffic has priority and I have it set up in Queue No 10 as mcast-af, Video (I set up Video.)

But when doing an "show interfaces ge-0/0/21 extensive" it shows 90% of my Multicast traffic is still going through queue 8 (mcast-be,) and not the one I thought I had specified.

Reading online I have seen a few posts / articles saying that it isn't possible on this version of JunOS, can any one advise me if this is true and if not how do I go about configuring it ?

I am running JunOS 17.3R3.10

Port configuration;

"description TEST_DEVICE;
unit 0 {
    family ethernet-switching {
        vlan {
            members adi-ctrl-int;
        }
    }
}"

QOS I created;

Video                                 4      10          2             high               normal            low

Thanks in advance.