+Q: I'd like to take advantage of some QoS feature that Open vSwitch
+ doesn't yet support. How do I do that?
+
+A: Open vSwitch does not implement QoS itself. Instead, it can
+ configure some, but not all, of the QoS features built into the
+ Linux kernel. If you need some QoS feature that OVS cannot
+ configure itself, then the first step is to figure out whether
+ Linux QoS supports that feature. If it does, then you can submit a
+ patch to support Open vSwitch configuration for that feature, or
+ you can use "tc" directly to configure the feature in Linux. (If
+ Linux QoS doesn't support the feature you want, then first you have
+ to add that support to Linux.)
+