I just configured a 3845 router with hwic-4esw L2 ports and I have assigned Vlan to its own switchport to provide additional routed ports. However, I need to configure QOS to some of these physical interfaces, but it looks like this can only be done in Vlan Interface. Is there a drawback in applying QOS in Vlan interface? or is there a better way to do this without replacing the interfaces with L3 switch?
Thanks and appreciate your feedback.