--- openflow-2011-10-26.h	2015-07-23 09:54:16.784479347 -0700
+++ openflow-2011-10-28.h	2015-07-23 09:54:16.788479347 -0700
@@ -443,6 +443,7 @@
     OFPXMT_OFB_ARP_THA        = 25, /* ARP target hardware address. */
     OFPXMT_OFB_IPV6_SRC       = 26, /* IPv6 source address. */
     OFPXMT_OFB_IPV6_DST       = 27, /* IPv6 destination address. */
+    OFPXMT_OFB_IPV6_FLABEL    = 28, /* IPv6 Flow Label */
     OFPXMT_OFB_ICMPV6_TYPE    = 29, /* ICMP type. */
     OFPXMT_OFB_ICMPV6_CODE    = 30, /* ICMP code. */
     OFPXMT_OFB_IPV6_ND_TARGET = 31, /* Target address for ND. */