now supported.
* OpenFlow 1.4+ "importance" is now considered for flow eviction.
* OpenFlow 1.4+ OFPTC_EVICTION is now implemented.
+ * OpenFlow 1.4+ OFPTC_VACANCY_EVENTS is now implemented.
* OpenFlow 1.4+ OFPMP_TABLE_DESC is now implemented.
* Allow modifying the ICMPv4/ICMPv6 type and code fields.
- ovs-ofctl: