[edit]
drill@lab-mx240# show firewall family inet filter CLEAR-DSCP
term 1 {
    then {
        count clear_dscp_filterhit;
        loss-priority low;
        forwarding-class best-effort;
        dscp be;
    }
}

[edit]
drill@lab-mx240# commit
[edit interfaces ge-0/0/4 unit 0 family inet]
  'filter'
    Referenced filter 'CLEAR-DSCP' cannot be used as "then dscp" not supported on ge-0/0/4. Filter will not be applied.
commit complete

[edit]
drill@lab-mx240# run show configuration interfaces ge-0/0/4
unit 0 {
    family inet {
        filter {
            input CLEAR-DSCP;
        }
        address 2.5.4.198/26;
    }
}

[edit]
drill@lab-mx240# run show interfaces filters | grep ge-0/0/4
ge-0/0/4        up    up
ge-0/0/4.0      up    up   inet