I'm testing the accel-ppp-ng vpp implementation on rolling, the configuration I have works fine with vpp disabled.

If I enable vpp-cp and vlan-mon then a client on ether eth1 or eth1 with vlan 99 fail to connect.

interface eth1 {
    vlan 2-4000
    vlan-mon
    vpp-cp
}

Just vpp-cp and a client on eth1 connects, eth1 vlan 99 doesn't connect

interface eth1 {
    vpp-cp
}

Just vlan-mon / vlan and no vpp (with eth1 also removed from vpp settings interface) then I get a connection on eth1 vlan 99

interface eth1 {
    vlan 2-4000
    vlan-mon
}

This feels like unexpected behaviour? I'd either expect vlan monitoring to be unavailable on vpp-cp or work as without vpp-cp (although I'd like to see vlan-mon work with QinQ on vpp-cp mode)

Thanks!