diff --git a/src/python/loxi/of10/const.py b/src/python/loxi/of10/const.py
index 5840b9a..6c6c160 100644
--- a/src/python/loxi/of10/const.py
+++ b/src/python/loxi/of10/const.py
@@ -111,6 +111,17 @@
     8: 'OFPBRC_BUFFER_UNKNOWN',
 }
 
+# Identifiers from group ofp_bsn_vport_l2gre_flags
+OF_BSN_VPORT_L2GRE_LOCAL_MAC_IS_VALID = 1
+OF_BSN_VPORT_L2GRE_DSCP_ASSIGN = 2
+OF_BSN_VPORT_L2GRE_DSCP_COPY = 4
+
+ofp_bsn_vport_l2gre_flags_map = {
+    1: 'OF_BSN_VPORT_L2GRE_LOCAL_MAC_IS_VALID',
+    2: 'OF_BSN_VPORT_L2GRE_DSCP_ASSIGN',
+    4: 'OF_BSN_VPORT_L2GRE_DSCP_COPY',
+}
+
 # Identifiers from group ofp_bsn_vport_q_in_q_untagged
 OF_BSN_VPORT_Q_IN_Q_UNTAGGED = 65535