+### Q: Does OVS support Quality of Service (QoS)?
+
+A: Yes. For traffic that egresses from a switch, OVS supports traffic
+ shaping; for traffic that ingresses into a switch, OVS support
+ policing. Policing is a simple form of quality-of-service that
+ simply drops packets received in excess of the configured rate. Due
+ to its simplicity, policing is usually less accurate and less
+ effective than egress traffic shaping, which queues packets.
+
+ Keep in mind that ingress and egress are from the perspective of the
+ switch. That means that egress shaping limits the rate at which
+ traffic is allowed to transmit from a physical interface, but the
+ rate at which traffic will be received on a virtual machine's VIF.
+ For ingress policing, the behavior is the opposite.
+
+### Q: How do I configure egress traffic shaping?