other than IPv4 or IPv6, the mbuf was not released, and caused
a memory leak.
+* **l3fwd: Fixed using packet type blindly.**
+
+ l3fwd makes use of packet type information without even query if devices or PMDs
+ really set it. For those don't set ptypes, add an option to parse it softly.
+
* **examples/vhost: Fixed frequent mbuf allocation failure.**
vhost-switch often fails to allocate mbuf when dequeue from vring because it