diff --git a/of11/const.go b/of11/const.go
new file mode 100644
index 0000000..a3b0617
--- /dev/null
+++ b/of11/const.go
@@ -0,0 +1,1691 @@
+/*
+ * Copyright (c) 2008 The Board of Trustees of The Leland Stanford Junior University
+ * Copyright (c) 2011, 2012 Open Networking Foundation
+ * Copyright 2013, Big Switch Networks, Inc. This library was generated by the LoxiGen Compiler.
+ * Copyright 2018, Red Hat, Inc.
+ */
+// Automatically generated by LOXI from template const.go
+// Do not modify
+
+package of11
+
+import (
+	"fmt"
+	"strings"
+)
+
+const (
+	// Identifiers from group macro_definitions
+	MaxTableNameLen     = 32         // OFP_MAX_TABLE_NAME_LEN
+	MaxPortNameLen      = 16         // OFP_MAX_PORT_NAME_LEN
+	TCPPort             = 6653       // OFP_TCP_PORT
+	SSLPort             = 6653       // OFP_SSL_PORT
+	EthAlen             = 6          // OFP_ETH_ALEN
+	DefaultMissSendLen  = 128        // OFP_DEFAULT_MISS_SEND_LEN
+	OFPFWICMPType       = 64         // OFPFW_ICMP_TYPE
+	OFPFWICMPCode       = 128        // OFPFW_ICMP_CODE
+	DlTypeEth2Cutoff    = 1536       // OFP_DL_TYPE_ETH2_CUTOFF
+	DlTypeNotEthType    = 1535       // OFP_DL_TYPE_NOT_ETH_TYPE
+	VLANNone            = 0          // OFP_VLAN_NONE
+	OFPMTStandardLength = 88         // OFPMT_STANDARD_LENGTH
+	FlowPermanent       = 0          // OFP_FLOW_PERMANENT
+	DefaultPriority     = 32768      // OFP_DEFAULT_PRIORITY
+	DescStrLen          = 256        // DESC_STR_LEN
+	SerialNumLen        = 32         // SERIAL_NUM_LEN
+	OFPQAll             = 4294967295 // OFPQ_ALL
+	OFPQMinRateUncfg    = 65535      // OFPQ_MIN_RATE_UNCFG
+)
+
+const (
+	// Identifiers from group nx_action_controller2_prop_type
+	Nxac2PtMaxLen       = 0 // NXAC2PT_MAX_LEN
+	Nxac2PtControllerID = 1 // NXAC2PT_CONTROLLER_ID
+	Nxac2PtReason       = 2 // NXAC2PT_REASON
+	Nxac2PtUserdata     = 3 // NXAC2PT_USERDATA
+	Nxac2PtPause        = 4 // NXAC2PT_PAUSE
+	Nxac2PtMeterID      = 5 // NXAC2PT_METER_ID
+)
+
+type NxActionController2PropType uint16
+
+func (self NxActionController2PropType) MarshalJSON() ([]byte, error) {
+	return []byte(fmt.Sprintf("%d", self)), nil
+}
+
+const (
+	// Identifiers from group nx_bd_algorithms
+	NxBdAlgActiveBackup = 0 // NX_BD_ALG_ACTIVE_BACKUP
+	NxBdAlgHrw          = 1 // NX_BD_ALG_HRW
+)
+
+type NxBdAlgorithms uint16
+
+func (self NxBdAlgorithms) MarshalJSON() ([]byte, error) {
+	return []byte(fmt.Sprintf("\"%s\"", self)), nil
+}
+
+func (self NxBdAlgorithms) String() string {
+	switch self {
+	case NxBdAlgActiveBackup:
+		return "active_backup"
+	case NxBdAlgHrw:
+		return "hrw"
+	default:
+		return fmt.Sprintf("%d", self)
+	}
+}
+
+const (
+	// Identifiers from group nx_conntrack_flags
+	NxCtFCommit = 1 // NX_CT_F_COMMIT
+	NxCtFForce  = 2 // NX_CT_F_FORCE
+)
+
+type NxConntrackFlags uint16
+
+func (self NxConntrackFlags) MarshalJSON() ([]byte, error) {
+	var flags []string
+	if self&NxCtFCommit == NxCtFCommit {
+		flags = append(flags, "\"Commit\": true")
+	}
+	if self&NxCtFForce == NxCtFForce {
+		flags = append(flags, "\"Force\": true")
+	}
+	return []byte("{" + strings.Join(flags, ", ") + "}"), nil
+}
+
+const (
+	// Identifiers from group nx_flow_monitor_flags
+	NxfmfInitial = 1  // NXFMF_INITIAL
+	NxfmfAdd     = 2  // NXFMF_ADD
+	NxfmfDelete  = 4  // NXFMF_DELETE
+	NxfmfModify  = 8  // NXFMF_MODIFY
+	NxfmfActions = 16 // NXFMF_ACTIONS
+	NxfmfOwn     = 32 // NXFMF_OWN
+)
+
+type NxFlowMonitorFlags uint16
+
+func (self NxFlowMonitorFlags) MarshalJSON() ([]byte, error) {
+	var flags []string
+	if self&NxfmfInitial == NxfmfInitial {
+		flags = append(flags, "\"Initial\": true")
+	}
+	if self&NxfmfAdd == NxfmfAdd {
+		flags = append(flags, "\"Add\": true")
+	}
+	if self&NxfmfDelete == NxfmfDelete {
+		flags = append(flags, "\"Delete\": true")
+	}
+	if self&NxfmfModify == NxfmfModify {
+		flags = append(flags, "\"Modify\": true")
+	}
+	if self&NxfmfActions == NxfmfActions {
+		flags = append(flags, "\"Actions\": true")
+	}
+	if self&NxfmfOwn == NxfmfOwn {
+		flags = append(flags, "\"Own\": true")
+	}
+	return []byte("{" + strings.Join(flags, ", ") + "}"), nil
+}
+
+const (
+	// Identifiers from group nx_hash_fields
+	NxHashFieldsEthSrc           = 0 // NX_HASH_FIELDS_ETH_SRC
+	NxHashFieldsSymmetricL4      = 1 // NX_HASH_FIELDS_SYMMETRIC_L4
+	NxHashFieldsSymmetricL3L4    = 2 // NX_HASH_FIELDS_SYMMETRIC_L3L4
+	NxHashFieldsSymmetricL3L4Udp = 3 // NX_HASH_FIELDS_SYMMETRIC_L3L4_UDP
+	NxHashFieldsNwSrc            = 4 // NX_HASH_FIELDS_NW_SRC
+	NxHashFieldsNwDst            = 5 // NX_HASH_FIELDS_NW_DST
+	NxHashFieldsSymmetricL3      = 6 // NX_HASH_FIELDS_SYMMETRIC_L3
+)
+
+type NxHashFields uint16
+
+func (self NxHashFields) MarshalJSON() ([]byte, error) {
+	return []byte(fmt.Sprintf("\"%s\"", self)), nil
+}
+
+func (self NxHashFields) String() string {
+	switch self {
+	case NxHashFieldsEthSrc:
+		return "eth_src"
+	case NxHashFieldsSymmetricL4:
+		return "symmetric_l4"
+	case NxHashFieldsSymmetricL3L4:
+		return "symmetric_l3l4"
+	case NxHashFieldsSymmetricL3L4Udp:
+		return "symmetric_l3l4_udp"
+	case NxHashFieldsNwSrc:
+		return "nw_src"
+	case NxHashFieldsNwDst:
+		return "nw_dst"
+	case NxHashFieldsSymmetricL3:
+		return "symmetric_l3"
+	default:
+		return fmt.Sprintf("%d", self)
+	}
+}
+
+const (
+	// Identifiers from group nx_mp_algorithm
+	NxMpAlgModuloN       = 0 // NX_MP_ALG_MODULO_N
+	NxMpAlgHashThreshold = 1 // NX_MP_ALG_HASH_THRESHOLD
+	NxMpAlgHrw           = 2 // NX_MP_ALG_HRW
+	NxMpAlgIterHash      = 3 // NX_MP_ALG_ITER_HASH
+)
+
+type NxMpAlgorithm uint16
+
+func (self NxMpAlgorithm) MarshalJSON() ([]byte, error) {
+	return []byte(fmt.Sprintf("\"%s\"", self)), nil
+}
+
+func (self NxMpAlgorithm) String() string {
+	switch self {
+	case NxMpAlgModuloN:
+		return "modulo_n"
+	case NxMpAlgHashThreshold:
+		return "hash_threshold"
+	case NxMpAlgHrw:
+		return "hrw"
+	case NxMpAlgIterHash:
+		return "iter_hash"
+	default:
+		return fmt.Sprintf("%d", self)
+	}
+}
+
+const (
+	// Identifiers from group of_action_nx_bundle_slave_type
+	NxmOfInPort                  = 2     // NXM_OF_IN_PORT
+	NxmOfJustThereToDefinePrefix = 10000 // NXM_OF_JUST_THERE_TO_DEFINE_PREFIX
+)
+
+type ActionNxBundleSlaveType uint32
+
+func (self ActionNxBundleSlaveType) MarshalJSON() ([]byte, error) {
+	return []byte(fmt.Sprintf("\"%s\"", self)), nil
+}
+
+func (self ActionNxBundleSlaveType) String() string {
+	switch self {
+	case NxmOfInPort:
+		return "in_port"
+	case NxmOfJustThereToDefinePrefix:
+		return "just_there_to_define_prefix"
+	default:
+		return fmt.Sprintf("%d", self)
+	}
+}
+
+const (
+	// Identifiers from group of_bsn_pdu_slot_num
+	BsnPduSlotNumAny = 255 // BSN_PDU_SLOT_NUM_ANY
+)
+
+type BsnPduSlotNum uint8
+
+func (self BsnPduSlotNum) MarshalJSON() ([]byte, error) {
+	return []byte(fmt.Sprintf("%d", self)), nil
+}
+
+const (
+	// Identifiers from group of_nx_nat_range
+	NxNatRangeIpv4Min  = 1  // NX_NAT_RANGE_IPV4_MIN
+	NxNatRangeIpv4Max  = 2  // NX_NAT_RANGE_IPV4_MAX
+	NxNatRangeIpv6Min  = 4  // NX_NAT_RANGE_IPV6_MIN
+	NxNatRangeIpv6Max  = 8  // NX_NAT_RANGE_IPV6_MAX
+	NxNatRangeProtoMin = 16 // NX_NAT_RANGE_PROTO_MIN
+	NxNatRangeProtoMax = 32 // NX_NAT_RANGE_PROTO_MAX
+)
+
+type NxNatRange uint16
+
+func (self NxNatRange) MarshalJSON() ([]byte, error) {
+	var flags []string
+	if self&NxNatRangeIpv4Min == NxNatRangeIpv4Min {
+		flags = append(flags, "\"Ipv4Min\": true")
+	}
+	if self&NxNatRangeIpv4Max == NxNatRangeIpv4Max {
+		flags = append(flags, "\"Ipv4Max\": true")
+	}
+	if self&NxNatRangeIpv6Min == NxNatRangeIpv6Min {
+		flags = append(flags, "\"Ipv6Min\": true")
+	}
+	if self&NxNatRangeIpv6Max == NxNatRangeIpv6Max {
+		flags = append(flags, "\"Ipv6Max\": true")
+	}
+	if self&NxNatRangeProtoMin == NxNatRangeProtoMin {
+		flags = append(flags, "\"ProtoMin\": true")
+	}
+	if self&NxNatRangeProtoMax == NxNatRangeProtoMax {
+		flags = append(flags, "\"ProtoMax\": true")
+	}
+	return []byte("{" + strings.Join(flags, ", ") + "}"), nil
+}
+
+const (
+	// Identifiers from group ofp_action_type
+	OFPATOutput       = 0     // OFPAT_OUTPUT
+	OFPATSetVLANVid   = 1     // OFPAT_SET_VLAN_VID
+	OFPATSetVLANPCP   = 2     // OFPAT_SET_VLAN_PCP
+	OFPATSetDlSrc     = 3     // OFPAT_SET_DL_SRC
+	OFPATSetDlDst     = 4     // OFPAT_SET_DL_DST
+	OFPATSetNwSrc     = 5     // OFPAT_SET_NW_SRC
+	OFPATSetNwDst     = 6     // OFPAT_SET_NW_DST
+	OFPATSetNwTos     = 7     // OFPAT_SET_NW_TOS
+	OFPATSetNwEcn     = 8     // OFPAT_SET_NW_ECN
+	OFPATSetTpSrc     = 9     // OFPAT_SET_TP_SRC
+	OFPATSetTpDst     = 10    // OFPAT_SET_TP_DST
+	OFPATCopyTtlOut   = 11    // OFPAT_COPY_TTL_OUT
+	OFPATCopyTtlIn    = 12    // OFPAT_COPY_TTL_IN
+	OFPATSetMplsLabel = 13    // OFPAT_SET_MPLS_LABEL
+	OFPATSetMplsTc    = 14    // OFPAT_SET_MPLS_TC
+	OFPATSetMplsTtl   = 15    // OFPAT_SET_MPLS_TTL
+	OFPATDecMplsTtl   = 16    // OFPAT_DEC_MPLS_TTL
+	OFPATPushVLAN     = 17    // OFPAT_PUSH_VLAN
+	OFPATPopVLAN      = 18    // OFPAT_POP_VLAN
+	OFPATPushMpls     = 19    // OFPAT_PUSH_MPLS
+	OFPATPopMpls      = 20    // OFPAT_POP_MPLS
+	OFPATSetQueue     = 21    // OFPAT_SET_QUEUE
+	OFPATGroup        = 22    // OFPAT_GROUP
+	OFPATSetNwTtl     = 23    // OFPAT_SET_NW_TTL
+	OFPATDecNwTtl     = 24    // OFPAT_DEC_NW_TTL
+	OFPATExperimenter = 65535 // OFPAT_EXPERIMENTER
+)
+
+type ActionType uint16
+
+func (self ActionType) MarshalJSON() ([]byte, error) {
+	return []byte(fmt.Sprintf("%d", self)), nil
+}
+
+const (
+	// Identifiers from group ofp_bad_action_code
+	OFPBACBadType             = 0  // OFPBAC_BAD_TYPE
+	OFPBACBadLen              = 1  // OFPBAC_BAD_LEN
+	OFPBACBadExperimenter     = 2  // OFPBAC_BAD_EXPERIMENTER
+	OFPBACBadExperimenterType = 3  // OFPBAC_BAD_EXPERIMENTER_TYPE
+	OFPBACBadOutPort          = 4  // OFPBAC_BAD_OUT_PORT
+	OFPBACBadArgument         = 5  // OFPBAC_BAD_ARGUMENT
+	OFPBACEperm               = 6  // OFPBAC_EPERM
+	OFPBACTooMany             = 7  // OFPBAC_TOO_MANY
+	OFPBACBadQueue            = 8  // OFPBAC_BAD_QUEUE
+	OFPBACBadOutGroup         = 9  // OFPBAC_BAD_OUT_GROUP
+	OFPBACMatchInconsistent   = 10 // OFPBAC_MATCH_INCONSISTENT
+	OFPBACUnsupportedOrder    = 11 // OFPBAC_UNSUPPORTED_ORDER
+	OFPBACBadTag              = 12 // OFPBAC_BAD_TAG
+)
+
+type BadActionCode uint16
+
+func (self BadActionCode) MarshalJSON() ([]byte, error) {
+	return []byte(fmt.Sprintf("%d", self)), nil
+}
+
+const (
+	// Identifiers from group ofp_bad_instruction_code
+	OFPBICUnknownInst       = 0 // OFPBIC_UNKNOWN_INST
+	OFPBICUnsupInst         = 1 // OFPBIC_UNSUP_INST
+	OFPBICBadTableID        = 2 // OFPBIC_BAD_TABLE_ID
+	OFPBICUnsupMetadata     = 3 // OFPBIC_UNSUP_METADATA
+	OFPBICUnsupMetadataMask = 4 // OFPBIC_UNSUP_METADATA_MASK
+	OFPBICUnsupExpInst      = 5 // OFPBIC_UNSUP_EXP_INST
+)
+
+type BadInstructionCode uint16
+
+func (self BadInstructionCode) MarshalJSON() ([]byte, error) {
+	return []byte(fmt.Sprintf("%d", self)), nil
+}
+
+const (
+	// Identifiers from group ofp_bad_match_code
+	OFPBMCBadType       = 0 // OFPBMC_BAD_TYPE
+	OFPBMCBadLen        = 1 // OFPBMC_BAD_LEN
+	OFPBMCBadTag        = 2 // OFPBMC_BAD_TAG
+	OFPBMCBadDlAddrMask = 3 // OFPBMC_BAD_DL_ADDR_MASK
+	OFPBMCBadNwAddrMask = 4 // OFPBMC_BAD_NW_ADDR_MASK
+	OFPBMCBadWildcards  = 5 // OFPBMC_BAD_WILDCARDS
+	OFPBMCBadField      = 6 // OFPBMC_BAD_FIELD
+	OFPBMCBadValue      = 7 // OFPBMC_BAD_VALUE
+)
+
+type BadMatchCode uint16
+
+func (self BadMatchCode) MarshalJSON() ([]byte, error) {
+	return []byte(fmt.Sprintf("%d", self)), nil
+}
+
+const (
+	// Identifiers from group ofp_bad_request_code
+	OFPBRCBadVersion      = 0 // OFPBRC_BAD_VERSION
+	OFPBRCBadType         = 1 // OFPBRC_BAD_TYPE
+	OFPBRCBadStat         = 2 // OFPBRC_BAD_STAT
+	OFPBRCBadExperimenter = 3 // OFPBRC_BAD_EXPERIMENTER
+	OFPBRCBadSubtype      = 4 // OFPBRC_BAD_SUBTYPE
+	OFPBRCEperm           = 5 // OFPBRC_EPERM
+	OFPBRCBadLen          = 6 // OFPBRC_BAD_LEN
+	OFPBRCBufferEmpty     = 7 // OFPBRC_BUFFER_EMPTY
+	OFPBRCBufferUnknown   = 8 // OFPBRC_BUFFER_UNKNOWN
+	OFPBRCBadTableID      = 9 // OFPBRC_BAD_TABLE_ID
+)
+
+type BadRequestCode uint16
+
+func (self BadRequestCode) MarshalJSON() ([]byte, error) {
+	return []byte(fmt.Sprintf("%d", self)), nil
+}
+
+const (
+	// Identifiers from group ofp_bsn_vport_l2gre_flags
+	OFBSNVportL2GreLocalMACIsValid  = 1  // OF_BSN_VPORT_L2GRE_LOCAL_MAC_IS_VALID
+	OFBSNVportL2GreDSCPAssign       = 2  // OF_BSN_VPORT_L2GRE_DSCP_ASSIGN
+	OFBSNVportL2GreDSCPCopy         = 4  // OF_BSN_VPORT_L2GRE_DSCP_COPY
+	OFBSNVportL2GreLoopbackIsValid  = 8  // OF_BSN_VPORT_L2GRE_LOOPBACK_IS_VALID
+	OFBSNVportL2GreRateLimitIsValid = 16 // OF_BSN_VPORT_L2GRE_RATE_LIMIT_IS_VALID
+)
+
+type BsnVportL2GreFlags uint32
+
+func (self BsnVportL2GreFlags) MarshalJSON() ([]byte, error) {
+	var flags []string
+	if self&OFBSNVportL2GreLocalMACIsValid == OFBSNVportL2GreLocalMACIsValid {
+		flags = append(flags, "\"LocalMACIsValid\": true")
+	}
+	if self&OFBSNVportL2GreDSCPAssign == OFBSNVportL2GreDSCPAssign {
+		flags = append(flags, "\"DscpAssign\": true")
+	}
+	if self&OFBSNVportL2GreDSCPCopy == OFBSNVportL2GreDSCPCopy {
+		flags = append(flags, "\"DscpCopy\": true")
+	}
+	if self&OFBSNVportL2GreLoopbackIsValid == OFBSNVportL2GreLoopbackIsValid {
+		flags = append(flags, "\"LoopbackIsValid\": true")
+	}
+	if self&OFBSNVportL2GreRateLimitIsValid == OFBSNVportL2GreRateLimitIsValid {
+		flags = append(flags, "\"RateLimitIsValid\": true")
+	}
+	return []byte("{" + strings.Join(flags, ", ") + "}"), nil
+}
+
+const (
+	// Identifiers from group ofp_bsn_vport_q_in_q_untagged
+	OFBSNVportQInQUntagged = 65535 // OF_BSN_VPORT_Q_IN_Q_UNTAGGED
+)
+
+type BsnVportQInQUntagged uint16
+
+func (self BsnVportQInQUntagged) MarshalJSON() ([]byte, error) {
+	return []byte(fmt.Sprintf("%d", self)), nil
+}
+
+const (
+	// Identifiers from group ofp_bsn_vport_status
+	OFBSNVportStatusOk     = 0 // OF_BSN_VPORT_STATUS_OK
+	OFBSNVportStatusFailed = 1 // OF_BSN_VPORT_STATUS_FAILED
+)
+
+const (
+	// Identifiers from group ofp_capabilities
+	OFPCFlowStats  = 1   // OFPC_FLOW_STATS
+	OFPCTableStats = 2   // OFPC_TABLE_STATS
+	OFPCPortStats  = 4   // OFPC_PORT_STATS
+	OFPCGroupStats = 8   // OFPC_GROUP_STATS
+	OFPCIpReasm    = 32  // OFPC_IP_REASM
+	OFPCQueueStats = 64  // OFPC_QUEUE_STATS
+	OFPCARPMatchIp = 128 // OFPC_ARP_MATCH_IP
+)
+
+type Capabilities uint32
+
+func (self Capabilities) MarshalJSON() ([]byte, error) {
+	var flags []string
+	if self&OFPCFlowStats == OFPCFlowStats {
+		flags = append(flags, "\"FlowStats\": true")
+	}
+	if self&OFPCTableStats == OFPCTableStats {
+		flags = append(flags, "\"TableStats\": true")
+	}
+	if self&OFPCPortStats == OFPCPortStats {
+		flags = append(flags, "\"PortStats\": true")
+	}
+	if self&OFPCGroupStats == OFPCGroupStats {
+		flags = append(flags, "\"GroupStats\": true")
+	}
+	if self&OFPCIpReasm == OFPCIpReasm {
+		flags = append(flags, "\"IpReasm\": true")
+	}
+	if self&OFPCQueueStats == OFPCQueueStats {
+		flags = append(flags, "\"QueueStats\": true")
+	}
+	if self&OFPCARPMatchIp == OFPCARPMatchIp {
+		flags = append(flags, "\"ArpMatchIp\": true")
+	}
+	return []byte("{" + strings.Join(flags, ", ") + "}"), nil
+}
+
+const (
+	// Identifiers from group ofp_config_flags
+	OFPCFragNormal             = 0 // OFPC_FRAG_NORMAL
+	OFPCFragDrop               = 1 // OFPC_FRAG_DROP
+	OFPCFragReasm              = 2 // OFPC_FRAG_REASM
+	OFPCFragMask               = 3 // OFPC_FRAG_MASK
+	OFPCInvalidTtlToController = 4 // OFPC_INVALID_TTL_TO_CONTROLLER
+)
+
+type ConfigFlags uint16
+
+func (self ConfigFlags) MarshalJSON() ([]byte, error) {
+	var flags []string
+	if self&OFPCFragNormal == OFPCFragNormal {
+		flags = append(flags, "\"FragNormal\": true")
+	}
+	if self&OFPCFragDrop == OFPCFragDrop {
+		flags = append(flags, "\"FragDrop\": true")
+	}
+	if self&OFPCFragReasm == OFPCFragReasm {
+		flags = append(flags, "\"FragReasm\": true")
+	}
+	if self&OFPCFragMask == OFPCFragMask {
+		flags = append(flags, "\"FragMask\": true")
+	}
+	if self&OFPCInvalidTtlToController == OFPCInvalidTtlToController {
+		flags = append(flags, "\"InvalidTtlToController\": true")
+	}
+	return []byte("{" + strings.Join(flags, ", ") + "}"), nil
+}
+
+const (
+	// Identifiers from group ofp_cs_states
+	CsNew         = 1   // OFP_CS_NEW
+	CsEstablished = 2   // OFP_CS_ESTABLISHED
+	CsRelated     = 4   // OFP_CS_RELATED
+	CsReplyDir    = 8   // OFP_CS_REPLY_DIR
+	CsInvalid     = 16  // OFP_CS_INVALID
+	CsTracked     = 32  // OFP_CS_TRACKED
+	CsSrcNat      = 64  // OFP_CS_SRC_NAT
+	CsDstNat      = 128 // OFP_CS_DST_NAT
+)
+
+type CsStates uint32
+
+func (self CsStates) MarshalJSON() ([]byte, error) {
+	var flags []string
+	if self&CsNew == CsNew {
+		flags = append(flags, "\"New\": true")
+	}
+	if self&CsEstablished == CsEstablished {
+		flags = append(flags, "\"Established\": true")
+	}
+	if self&CsRelated == CsRelated {
+		flags = append(flags, "\"Related\": true")
+	}
+	if self&CsReplyDir == CsReplyDir {
+		flags = append(flags, "\"ReplyDir\": true")
+	}
+	if self&CsInvalid == CsInvalid {
+		flags = append(flags, "\"Invalid\": true")
+	}
+	if self&CsTracked == CsTracked {
+		flags = append(flags, "\"Tracked\": true")
+	}
+	if self&CsSrcNat == CsSrcNat {
+		flags = append(flags, "\"SrcNat\": true")
+	}
+	if self&CsDstNat == CsDstNat {
+		flags = append(flags, "\"DstNat\": true")
+	}
+	return []byte("{" + strings.Join(flags, ", ") + "}"), nil
+}
+
+const (
+	// Identifiers from group ofp_ed_nsh_prop_type
+	OFPPPTPropNshNone   = 0 // OFPPPT_PROP_NSH_NONE
+	OFPPPTPropNshMdtype = 1 // OFPPPT_PROP_NSH_MDTYPE
+	OFPPPTPropNshTlv    = 2 // OFPPPT_PROP_NSH_TLV
+)
+
+type EdNshPropType uint8
+
+func (self EdNshPropType) MarshalJSON() ([]byte, error) {
+	return []byte(fmt.Sprintf("%d", self)), nil
+}
+
+const (
+	// Identifiers from group ofp_ed_prop_class
+	OFPPPCBasic        = 0     // OFPPPC_BASIC
+	OFPPPCMpls         = 1     // OFPPPC_MPLS
+	OFPPPCGRE          = 2     // OFPPPC_GRE
+	OFPPPCGtp          = 3     // OFPPPC_GTP
+	OFPPPCNsh          = 4     // OFPPPC_NSH
+	OFPPPCExperimenter = 65535 // OFPPPC_EXPERIMENTER
+)
+
+type EdPropClass uint16
+
+func (self EdPropClass) MarshalJSON() ([]byte, error) {
+	return []byte(fmt.Sprintf("%d", self)), nil
+}
+
+const (
+	// Identifiers from group ofp_error_type
+	OFPETHelloFailed        = 0  // OFPET_HELLO_FAILED
+	OFPETBadRequest         = 1  // OFPET_BAD_REQUEST
+	OFPETBadAction          = 2  // OFPET_BAD_ACTION
+	OFPETBadInstruction     = 3  // OFPET_BAD_INSTRUCTION
+	OFPETBadMatch           = 4  // OFPET_BAD_MATCH
+	OFPETFlowModFailed      = 5  // OFPET_FLOW_MOD_FAILED
+	OFPETGroupModFailed     = 6  // OFPET_GROUP_MOD_FAILED
+	OFPETPortModFailed      = 7  // OFPET_PORT_MOD_FAILED
+	OFPETTableModFailed     = 8  // OFPET_TABLE_MOD_FAILED
+	OFPETQueueOpFailed      = 9  // OFPET_QUEUE_OP_FAILED
+	OFPETSwitchConfigFailed = 10 // OFPET_SWITCH_CONFIG_FAILED
+)
+
+type ErrorType uint16
+
+func (self ErrorType) MarshalJSON() ([]byte, error) {
+	return []byte(fmt.Sprintf("%d", self)), nil
+}
+
+const (
+	// Identifiers from group ofp_ethernet_type
+	EthPLoop      = 96    // ETH_P_LOOP
+	EthPPup       = 512   // ETH_P_PUP
+	EthPPupat     = 513   // ETH_P_PUPAT
+	EthPIp        = 2048  // ETH_P_IP
+	EthPX25       = 2053  // ETH_P_X25
+	EthPARP       = 2054  // ETH_P_ARP
+	EthPBpq       = 2303  // ETH_P_BPQ
+	EthPIeeepup   = 2560  // ETH_P_IEEEPUP
+	EthPIeeepupat = 2561  // ETH_P_IEEEPUPAT
+	EthPDec       = 24576 // ETH_P_DEC
+	EthPDnaDl     = 24577 // ETH_P_DNA_DL
+	EthPDnaRc     = 24578 // ETH_P_DNA_RC
+	EthPDnaRt     = 24579 // ETH_P_DNA_RT
+	EthPLat       = 24580 // ETH_P_LAT
+	EthPDiag      = 24581 // ETH_P_DIAG
+	EthPCust      = 24582 // ETH_P_CUST
+	EthPSca       = 24583 // ETH_P_SCA
+	EthPTeb       = 25944 // ETH_P_TEB
+	EthPRarp      = 32821 // ETH_P_RARP
+	EthPAtalk     = 32923 // ETH_P_ATALK
+	EthPAarp      = 33011 // ETH_P_AARP
+	EthP8021Q     = 33024 // ETH_P_8021Q
+	EthPIpx       = 33079 // ETH_P_IPX
+	EthPIpv6      = 34525 // ETH_P_IPV6
+	EthPPause     = 34824 // ETH_P_PAUSE
+	EthPSlow      = 34825 // ETH_P_SLOW
+	EthPWccp      = 34878 // ETH_P_WCCP
+	EthPPppDisc   = 34915 // ETH_P_PPP_DISC
+	EthPPppSes    = 34916 // ETH_P_PPP_SES
+	EthPMplsUc    = 34887 // ETH_P_MPLS_UC
+	EthPMplsMc    = 34888 // ETH_P_MPLS_MC
+	EthPAtmmpoa   = 34892 // ETH_P_ATMMPOA
+	EthPAtmfate   = 34948 // ETH_P_ATMFATE
+	EthPPae       = 34958 // ETH_P_PAE
+	EthPAoe       = 34978 // ETH_P_AOE
+	EthPTipc      = 35018 // ETH_P_TIPC
+	EthP1588      = 35063 // ETH_P_1588
+	EthPFcoe      = 35078 // ETH_P_FCOE
+	EthPFip       = 35092 // ETH_P_FIP
+	EthPEdsa      = 56026 // ETH_P_EDSA
+)
+
+type EthernetType uint16
+
+func (self EthernetType) MarshalJSON() ([]byte, error) {
+	return []byte(fmt.Sprintf("\"%s\"", self)), nil
+}
+
+func (self EthernetType) String() string {
+	switch self {
+	case EthPLoop:
+		return "loop"
+	case EthPPup:
+		return "pup"
+	case EthPPupat:
+		return "pupat"
+	case EthPIp:
+		return "ip"
+	case EthPX25:
+		return "x25"
+	case EthPARP:
+		return "arp"
+	case EthPBpq:
+		return "bpq"
+	case EthPIeeepup:
+		return "ieeepup"
+	case EthPIeeepupat:
+		return "ieeepupat"
+	case EthPDec:
+		return "dec"
+	case EthPDnaDl:
+		return "dna_dl"
+	case EthPDnaRc:
+		return "dna_rc"
+	case EthPDnaRt:
+		return "dna_rt"
+	case EthPLat:
+		return "lat"
+	case EthPDiag:
+		return "diag"
+	case EthPCust:
+		return "cust"
+	case EthPSca:
+		return "sca"
+	case EthPTeb:
+		return "teb"
+	case EthPRarp:
+		return "rarp"
+	case EthPAtalk:
+		return "atalk"
+	case EthPAarp:
+		return "aarp"
+	case EthP8021Q:
+		return "8021q"
+	case EthPIpx:
+		return "ipx"
+	case EthPIpv6:
+		return "ipv6"
+	case EthPPause:
+		return "pause"
+	case EthPSlow:
+		return "slow"
+	case EthPWccp:
+		return "wccp"
+	case EthPPppDisc:
+		return "ppp_disc"
+	case EthPPppSes:
+		return "ppp_ses"
+	case EthPMplsUc:
+		return "mpls_uc"
+	case EthPMplsMc:
+		return "mpls_mc"
+	case EthPAtmmpoa:
+		return "atmmpoa"
+	case EthPAtmfate:
+		return "atmfate"
+	case EthPPae:
+		return "pae"
+	case EthPAoe:
+		return "aoe"
+	case EthPTipc:
+		return "tipc"
+	case EthP1588:
+		return "1588"
+	case EthPFcoe:
+		return "fcoe"
+	case EthPFip:
+		return "fip"
+	case EthPEdsa:
+		return "edsa"
+	default:
+		return fmt.Sprintf("%d", self)
+	}
+}
+
+const (
+	// Identifiers from group ofp_flow_mod_command
+	OFPFCAdd          = 0 // OFPFC_ADD
+	OFPFCModify       = 1 // OFPFC_MODIFY
+	OFPFCModifyStrict = 2 // OFPFC_MODIFY_STRICT
+	OFPFCDelete       = 3 // OFPFC_DELETE
+	OFPFCDeleteStrict = 4 // OFPFC_DELETE_STRICT
+)
+
+type FlowModCommand uint8
+
+func (self FlowModCommand) MarshalJSON() ([]byte, error) {
+	return []byte(fmt.Sprintf("%d", self)), nil
+}
+
+const (
+	// Identifiers from group ofp_flow_mod_failed_code
+	OFPFMFCUnknown    = 0 // OFPFMFC_UNKNOWN
+	OFPFMFCTableFull  = 1 // OFPFMFC_TABLE_FULL
+	OFPFMFCBadTableID = 2 // OFPFMFC_BAD_TABLE_ID
+	OFPFMFCOverlap    = 3 // OFPFMFC_OVERLAP
+	OFPFMFCEperm      = 4 // OFPFMFC_EPERM
+	OFPFMFCBadTimeout = 5 // OFPFMFC_BAD_TIMEOUT
+	OFPFMFCBadCommand = 6 // OFPFMFC_BAD_COMMAND
+)
+
+type FlowModFailedCode uint16
+
+func (self FlowModFailedCode) MarshalJSON() ([]byte, error) {
+	return []byte(fmt.Sprintf("%d", self)), nil
+}
+
+const (
+	// Identifiers from group ofp_flow_mod_flags
+	OFPFFSendFlowRem  = 1 // OFPFF_SEND_FLOW_REM
+	OFPFFCheckOverlap = 2 // OFPFF_CHECK_OVERLAP
+)
+
+type FlowModFlags uint16
+
+func (self FlowModFlags) MarshalJSON() ([]byte, error) {
+	var flags []string
+	if self&OFPFFSendFlowRem == OFPFFSendFlowRem {
+		flags = append(flags, "\"SendFlowRem\": true")
+	}
+	if self&OFPFFCheckOverlap == OFPFFCheckOverlap {
+		flags = append(flags, "\"CheckOverlap\": true")
+	}
+	return []byte("{" + strings.Join(flags, ", ") + "}"), nil
+}
+
+const (
+	// Identifiers from group ofp_flow_removed_reason
+	OFPRRIdleTimeout = 0 // OFPRR_IDLE_TIMEOUT
+	OFPRRHardTimeout = 1 // OFPRR_HARD_TIMEOUT
+	OFPRRDelete      = 2 // OFPRR_DELETE
+	OFPRRGroupDelete = 3 // OFPRR_GROUP_DELETE
+)
+
+type FlowRemovedReason uint8
+
+func (self FlowRemovedReason) MarshalJSON() ([]byte, error) {
+	return []byte(fmt.Sprintf("%d", self)), nil
+}
+
+const (
+	// Identifiers from group ofp_flow_wildcards
+	OFPFWInPort    = 1    // OFPFW_IN_PORT
+	OFPFWDlVLAN    = 2    // OFPFW_DL_VLAN
+	OFPFWDlVLANPCP = 4    // OFPFW_DL_VLAN_PCP
+	OFPFWDlType    = 8    // OFPFW_DL_TYPE
+	OFPFWNwTos     = 16   // OFPFW_NW_TOS
+	OFPFWNwProto   = 32   // OFPFW_NW_PROTO
+	OFPFWTpSrc     = 64   // OFPFW_TP_SRC
+	OFPFWTpDst     = 128  // OFPFW_TP_DST
+	OFPFWMplsLabel = 256  // OFPFW_MPLS_LABEL
+	OFPFWMplsTc    = 512  // OFPFW_MPLS_TC
+	OFPFWAll       = 1023 // OFPFW_ALL
+)
+
+type FlowWildcards uint32
+
+func (self FlowWildcards) MarshalJSON() ([]byte, error) {
+	var flags []string
+	if self&OFPFWInPort == OFPFWInPort {
+		flags = append(flags, "\"InPort\": true")
+	}
+	if self&OFPFWDlVLAN == OFPFWDlVLAN {
+		flags = append(flags, "\"DlVLAN\": true")
+	}
+	if self&OFPFWDlVLANPCP == OFPFWDlVLANPCP {
+		flags = append(flags, "\"DlVLANPCP\": true")
+	}
+	if self&OFPFWDlType == OFPFWDlType {
+		flags = append(flags, "\"DlType\": true")
+	}
+	if self&OFPFWNwTos == OFPFWNwTos {
+		flags = append(flags, "\"NwTos\": true")
+	}
+	if self&OFPFWNwProto == OFPFWNwProto {
+		flags = append(flags, "\"NwProto\": true")
+	}
+	if self&OFPFWTpSrc == OFPFWTpSrc {
+		flags = append(flags, "\"TpSrc\": true")
+	}
+	if self&OFPFWTpDst == OFPFWTpDst {
+		flags = append(flags, "\"TpDst\": true")
+	}
+	if self&OFPFWMplsLabel == OFPFWMplsLabel {
+		flags = append(flags, "\"MplsLabel\": true")
+	}
+	if self&OFPFWMplsTc == OFPFWMplsTc {
+		flags = append(flags, "\"MplsTc\": true")
+	}
+	if self&OFPFWAll == OFPFWAll {
+		flags = append(flags, "\"All\": true")
+	}
+	return []byte("{" + strings.Join(flags, ", ") + "}"), nil
+}
+
+const (
+	// Identifiers from group ofp_group
+	OFPGMax = 4294967040 // OFPG_MAX
+	OFPGAll = 4294967292 // OFPG_ALL
+	OFPGAny = 4294967295 // OFPG_ANY
+)
+
+type Group uint32
+
+func (self Group) MarshalJSON() ([]byte, error) {
+	return []byte(fmt.Sprintf("%d", self)), nil
+}
+
+const (
+	// Identifiers from group ofp_group_mod_command
+	OFPGCAdd    = 0 // OFPGC_ADD
+	OFPGCModify = 1 // OFPGC_MODIFY
+	OFPGCDelete = 2 // OFPGC_DELETE
+)
+
+type GroupModCommand uint16
+
+func (self GroupModCommand) MarshalJSON() ([]byte, error) {
+	return []byte(fmt.Sprintf("%d", self)), nil
+}
+
+const (
+	// Identifiers from group ofp_group_mod_failed_code
+	OFPGMFCGroupExists         = 0 // OFPGMFC_GROUP_EXISTS
+	OFPGMFCInvalidGroup        = 1 // OFPGMFC_INVALID_GROUP
+	OFPGMFCWeightUnsupported   = 2 // OFPGMFC_WEIGHT_UNSUPPORTED
+	OFPGMFCOutOfGroups         = 3 // OFPGMFC_OUT_OF_GROUPS
+	OFPGMFCOutOfBuckets        = 4 // OFPGMFC_OUT_OF_BUCKETS
+	OFPGMFCChainingUnsupported = 5 // OFPGMFC_CHAINING_UNSUPPORTED
+	OFPGMFCWatchUnsupported    = 6 // OFPGMFC_WATCH_UNSUPPORTED
+	OFPGMFCLoop                = 7 // OFPGMFC_LOOP
+	OFPGMFCUnknownGroup        = 8 // OFPGMFC_UNKNOWN_GROUP
+)
+
+type GroupModFailedCode uint16
+
+func (self GroupModFailedCode) MarshalJSON() ([]byte, error) {
+	return []byte(fmt.Sprintf("%d", self)), nil
+}
+
+const (
+	// Identifiers from group ofp_group_type
+	OFPGTAll      = 0 // OFPGT_ALL
+	OFPGTSelect   = 1 // OFPGT_SELECT
+	OFPGTIndirect = 2 // OFPGT_INDIRECT
+	OFPGTFf       = 3 // OFPGT_FF
+)
+
+type GroupType uint8
+
+func (self GroupType) MarshalJSON() ([]byte, error) {
+	return []byte(fmt.Sprintf("\"%s\"", self)), nil
+}
+
+func (self GroupType) String() string {
+	switch self {
+	case OFPGTAll:
+		return "all"
+	case OFPGTSelect:
+		return "select"
+	case OFPGTIndirect:
+		return "indirect"
+	case OFPGTFf:
+		return "ff"
+	default:
+		return fmt.Sprintf("%d", self)
+	}
+}
+
+const (
+	// Identifiers from group ofp_hello_failed_code
+	OFPHFCIncompatible = 0 // OFPHFC_INCOMPATIBLE
+	OFPHFCEperm        = 1 // OFPHFC_EPERM
+)
+
+type HelloFailedCode uint16
+
+func (self HelloFailedCode) MarshalJSON() ([]byte, error) {
+	return []byte(fmt.Sprintf("%d", self)), nil
+}
+
+const (
+	// Identifiers from group ofp_icmp_type
+	IcmpEchoreply      = 0  // ICMP_ECHOREPLY
+	IcmpDestUnreach    = 3  // ICMP_DEST_UNREACH
+	IcmpSourceQuench   = 4  // ICMP_SOURCE_QUENCH
+	IcmpRedirect       = 5  // ICMP_REDIRECT
+	IcmpEcho           = 8  // ICMP_ECHO
+	IcmpTimeExceeded   = 11 // ICMP_TIME_EXCEEDED
+	IcmpParameterprob  = 12 // ICMP_PARAMETERPROB
+	IcmpTimestamp      = 13 // ICMP_TIMESTAMP
+	IcmpTimestampreply = 14 // ICMP_TIMESTAMPREPLY
+	IcmpInfoRequest    = 15 // ICMP_INFO_REQUEST
+	IcmpInfoReply      = 16 // ICMP_INFO_REPLY
+	IcmpAddress        = 17 // ICMP_ADDRESS
+	IcmpAddressreply   = 18 // ICMP_ADDRESSREPLY
+)
+
+type IcmpType uint8
+
+func (self IcmpType) MarshalJSON() ([]byte, error) {
+	return []byte(fmt.Sprintf("\"%s\"", self)), nil
+}
+
+func (self IcmpType) String() string {
+	switch self {
+	case IcmpEchoreply:
+		return "echoreply"
+	case IcmpDestUnreach:
+		return "dest_unreach"
+	case IcmpSourceQuench:
+		return "source_quench"
+	case IcmpRedirect:
+		return "redirect"
+	case IcmpEcho:
+		return "echo"
+	case IcmpTimeExceeded:
+		return "time_exceeded"
+	case IcmpParameterprob:
+		return "parameterprob"
+	case IcmpTimestamp:
+		return "timestamp"
+	case IcmpTimestampreply:
+		return "timestampreply"
+	case IcmpInfoRequest:
+		return "info_request"
+	case IcmpInfoReply:
+		return "info_reply"
+	case IcmpAddress:
+		return "address"
+	case IcmpAddressreply:
+		return "addressreply"
+	default:
+		return fmt.Sprintf("%d", self)
+	}
+}
+
+const (
+	// Identifiers from group ofp_icmpv6_type
+	Icmpv6EchoRequest     = 128 // ICMPV6_ECHO_REQUEST
+	Icmpv6EchoReply       = 129 // ICMPV6_ECHO_REPLY
+	Icmpv6MgmQuery        = 130 // ICMPV6_MGM_QUERY
+	Icmpv6MgmReport       = 131 // ICMPV6_MGM_REPORT
+	Icmpv6MgmReduction    = 132 // ICMPV6_MGM_REDUCTION
+	Icmpv6NiQuery         = 139 // ICMPV6_NI_QUERY
+	Icmpv6NiReply         = 140 // ICMPV6_NI_REPLY
+	Icmpv6Mld2Report      = 143 // ICMPV6_MLD2_REPORT
+	Icmpv6DhaadRequest    = 144 // ICMPV6_DHAAD_REQUEST
+	Icmpv6DhaadReply      = 145 // ICMPV6_DHAAD_REPLY
+	Icmpv6MobilePrefixSol = 146 // ICMPV6_MOBILE_PREFIX_SOL
+	Icmpv6MobilePrefixAdv = 147 // ICMPV6_MOBILE_PREFIX_ADV
+)
+
+type Icmpv6Type uint8
+
+func (self Icmpv6Type) MarshalJSON() ([]byte, error) {
+	return []byte(fmt.Sprintf("\"%s\"", self)), nil
+}
+
+func (self Icmpv6Type) String() string {
+	switch self {
+	case Icmpv6EchoRequest:
+		return "echo_request"
+	case Icmpv6EchoReply:
+		return "echo_reply"
+	case Icmpv6MgmQuery:
+		return "mgm_query"
+	case Icmpv6MgmReport:
+		return "mgm_report"
+	case Icmpv6MgmReduction:
+		return "mgm_reduction"
+	case Icmpv6NiQuery:
+		return "ni_query"
+	case Icmpv6NiReply:
+		return "ni_reply"
+	case Icmpv6Mld2Report:
+		return "mld2_report"
+	case Icmpv6DhaadRequest:
+		return "dhaad_request"
+	case Icmpv6DhaadReply:
+		return "dhaad_reply"
+	case Icmpv6MobilePrefixSol:
+		return "mobile_prefix_sol"
+	case Icmpv6MobilePrefixAdv:
+		return "mobile_prefix_adv"
+	default:
+		return fmt.Sprintf("%d", self)
+	}
+}
+
+const (
+	// Identifiers from group ofp_instruction_type
+	OFPITGotoTable     = 1     // OFPIT_GOTO_TABLE
+	OFPITWriteMetadata = 2     // OFPIT_WRITE_METADATA
+	OFPITWriteActions  = 3     // OFPIT_WRITE_ACTIONS
+	OFPITApplyActions  = 4     // OFPIT_APPLY_ACTIONS
+	OFPITClearActions  = 5     // OFPIT_CLEAR_ACTIONS
+	OFPITExperimenter  = 65535 // OFPIT_EXPERIMENTER
+)
+
+type InstructionType uint16
+
+func (self InstructionType) MarshalJSON() ([]byte, error) {
+	var flags []string
+	if self&OFPITGotoTable == OFPITGotoTable {
+		flags = append(flags, "\"GotoTable\": true")
+	}
+	if self&OFPITWriteMetadata == OFPITWriteMetadata {
+		flags = append(flags, "\"WriteMetadata\": true")
+	}
+	if self&OFPITWriteActions == OFPITWriteActions {
+		flags = append(flags, "\"WriteActions\": true")
+	}
+	if self&OFPITApplyActions == OFPITApplyActions {
+		flags = append(flags, "\"ApplyActions\": true")
+	}
+	if self&OFPITClearActions == OFPITClearActions {
+		flags = append(flags, "\"ClearActions\": true")
+	}
+	if self&OFPITExperimenter == OFPITExperimenter {
+		flags = append(flags, "\"Experimenter\": true")
+	}
+	return []byte("{" + strings.Join(flags, ", ") + "}"), nil
+}
+
+const (
+	// Identifiers from group ofp_ip_prototype
+	IpprotoIp       = 0   // IPPROTO_IP
+	IpprotoICMP     = 1   // IPPROTO_ICMP
+	IpprotoIgmp     = 2   // IPPROTO_IGMP
+	IpprotoIpip     = 4   // IPPROTO_IPIP
+	IpprotoTCP      = 6   // IPPROTO_TCP
+	IpprotoEgp      = 8   // IPPROTO_EGP
+	IpprotoPup      = 12  // IPPROTO_PUP
+	IpprotoUdp      = 17  // IPPROTO_UDP
+	IpprotoIdp      = 22  // IPPROTO_IDP
+	IpprotoTp       = 29  // IPPROTO_TP
+	IpprotoDccp     = 33  // IPPROTO_DCCP
+	IpprotoIpv6     = 41  // IPPROTO_IPV6
+	IpprotoRsvp     = 46  // IPPROTO_RSVP
+	IpprotoGRE      = 47  // IPPROTO_GRE
+	IpprotoEsp      = 50  // IPPROTO_ESP
+	IpprotoAh       = 51  // IPPROTO_AH
+	IpprotoMtp      = 92  // IPPROTO_MTP
+	IpprotoBeetph   = 94  // IPPROTO_BEETPH
+	IpprotoEncap    = 98  // IPPROTO_ENCAP
+	IpprotoPim      = 103 // IPPROTO_PIM
+	IpprotoComp     = 108 // IPPROTO_COMP
+	IpprotoSctp     = 132 // IPPROTO_SCTP
+	IpprotoUdplite  = 136 // IPPROTO_UDPLITE
+	IpprotoMpls     = 137 // IPPROTO_MPLS
+	IpprotoRaw      = 255 // IPPROTO_RAW
+	IpprotoRouting  = 43  // IPPROTO_ROUTING
+	IpprotoFragment = 44  // IPPROTO_FRAGMENT
+	IpprotoIcmpv6   = 58  // IPPROTO_ICMPV6
+	IpprotoNone     = 59  // IPPROTO_NONE
+	IpprotoDstopts  = 60  // IPPROTO_DSTOPTS
+	IpprotoMh       = 135 // IPPROTO_MH
+	IpprotoL2Tp     = 115 // IPPROTO_L2TP
+)
+
+type IpPrototype uint8
+
+func (self IpPrototype) MarshalJSON() ([]byte, error) {
+	return []byte(fmt.Sprintf("\"%s\"", self)), nil
+}
+
+func (self IpPrototype) String() string {
+	switch self {
+	case IpprotoIp:
+		return "ip"
+	case IpprotoICMP:
+		return "icmp"
+	case IpprotoIgmp:
+		return "igmp"
+	case IpprotoIpip:
+		return "ipip"
+	case IpprotoTCP:
+		return "tcp"
+	case IpprotoEgp:
+		return "egp"
+	case IpprotoPup:
+		return "pup"
+	case IpprotoUdp:
+		return "udp"
+	case IpprotoIdp:
+		return "idp"
+	case IpprotoTp:
+		return "tp"
+	case IpprotoDccp:
+		return "dccp"
+	case IpprotoIpv6:
+		return "ipv6"
+	case IpprotoRsvp:
+		return "rsvp"
+	case IpprotoGRE:
+		return "gre"
+	case IpprotoEsp:
+		return "esp"
+	case IpprotoAh:
+		return "ah"
+	case IpprotoMtp:
+		return "mtp"
+	case IpprotoBeetph:
+		return "beetph"
+	case IpprotoEncap:
+		return "encap"
+	case IpprotoPim:
+		return "pim"
+	case IpprotoComp:
+		return "comp"
+	case IpprotoSctp:
+		return "sctp"
+	case IpprotoUdplite:
+		return "udplite"
+	case IpprotoMpls:
+		return "mpls"
+	case IpprotoRaw:
+		return "raw"
+	case IpprotoRouting:
+		return "routing"
+	case IpprotoFragment:
+		return "fragment"
+	case IpprotoIcmpv6:
+		return "icmpv6"
+	case IpprotoNone:
+		return "none"
+	case IpprotoDstopts:
+		return "dstopts"
+	case IpprotoMh:
+		return "mh"
+	case IpprotoL2Tp:
+		return "l2tp"
+	default:
+		return fmt.Sprintf("%d", self)
+	}
+}
+
+const (
+	// Identifiers from group ofp_match_type
+	OFPMTStandard = 0 // OFPMT_STANDARD
+)
+
+type MatchType uint16
+
+func (self MatchType) MarshalJSON() ([]byte, error) {
+	return []byte(fmt.Sprintf("%d", self)), nil
+}
+
+const (
+	// Identifiers from group ofp_packet_in_reason
+	OFPRNoMatch = 0 // OFPR_NO_MATCH
+	OFPRAction  = 1 // OFPR_ACTION
+)
+
+type PacketInReason uint8
+
+func (self PacketInReason) MarshalJSON() ([]byte, error) {
+	return []byte(fmt.Sprintf("%d", self)), nil
+}
+
+const (
+	// Identifiers from group ofp_packet_type
+	PtEthernet     = 0          // OFP_PT_ETHERNET
+	PtUseNextProto = 65534      // OFP_PT_USE_NEXT_PROTO
+	PtIpv4         = 67584      // OFP_PT_IPV4
+	PtMpls         = 100423     // OFP_PT_MPLS
+	PtMplsMc       = 100424     // OFP_PT_MPLS_MC
+	PtNsh          = 100687     // OFP_PT_NSH
+	PtUnknown      = 4294967295 // OFP_PT_UNKNOWN
+)
+
+type PacketType uint32
+
+func (self PacketType) MarshalJSON() ([]byte, error) {
+	return []byte(fmt.Sprintf("\"%s\"", self)), nil
+}
+
+func (self PacketType) String() string {
+	switch self {
+	case PtEthernet:
+		return "ethernet"
+	case PtUseNextProto:
+		return "use_next_proto"
+	case PtIpv4:
+		return "ipv4"
+	case PtMpls:
+		return "mpls"
+	case PtMplsMc:
+		return "mpls_mc"
+	case PtNsh:
+		return "nsh"
+	case PtUnknown:
+		return "unknown"
+	default:
+		return fmt.Sprintf("%d", self)
+	}
+}
+
+const (
+	// Identifiers from group ofp_port
+	OFPPMax        = 4294967040 // OFPP_MAX
+	OFPPInPort     = 4294967288 // OFPP_IN_PORT
+	OFPPTable      = 4294967289 // OFPP_TABLE
+	OFPPNormal     = 4294967290 // OFPP_NORMAL
+	OFPPFlood      = 4294967291 // OFPP_FLOOD
+	OFPPAll        = 4294967292 // OFPP_ALL
+	OFPPController = 4294967293 // OFPP_CONTROLLER
+	OFPPLocal      = 4294967294 // OFPP_LOCAL
+	OFPPAny        = 4294967295 // OFPP_ANY
+)
+
+type Port uint32
+
+func (self Port) MarshalJSON() ([]byte, error) {
+	return []byte(fmt.Sprintf("%d", self)), nil
+}
+
+const (
+	// Identifiers from group ofp_port_config
+	OFPPCPortDown      = 1          // OFPPC_PORT_DOWN
+	OFPPCNoRecv        = 4          // OFPPC_NO_RECV
+	OFPPCNoFwd         = 32         // OFPPC_NO_FWD
+	OFPPCNoPacketIn    = 64         // OFPPC_NO_PACKET_IN
+	OFPPCBSNMirrorDest = 2147483648 // OFPPC_BSN_MIRROR_DEST
+)
+
+type PortConfig uint32
+
+func (self PortConfig) MarshalJSON() ([]byte, error) {
+	var flags []string
+	if self&OFPPCPortDown == OFPPCPortDown {
+		flags = append(flags, "\"PortDown\": true")
+	}
+	if self&OFPPCNoRecv == OFPPCNoRecv {
+		flags = append(flags, "\"NoRecv\": true")
+	}
+	if self&OFPPCNoFwd == OFPPCNoFwd {
+		flags = append(flags, "\"NoFwd\": true")
+	}
+	if self&OFPPCNoPacketIn == OFPPCNoPacketIn {
+		flags = append(flags, "\"NoPacketIn\": true")
+	}
+	if self&OFPPCBSNMirrorDest == OFPPCBSNMirrorDest {
+		flags = append(flags, "\"BsnMirrorDest\": true")
+	}
+	return []byte("{" + strings.Join(flags, ", ") + "}"), nil
+}
+
+const (
+	// Identifiers from group ofp_port_features
+	OFPPF10MbHd    = 1     // OFPPF_10MB_HD
+	OFPPF10MbFd    = 2     // OFPPF_10MB_FD
+	OFPPF100MbHd   = 4     // OFPPF_100MB_HD
+	OFPPF100MbFd   = 8     // OFPPF_100MB_FD
+	OFPPF1GbHd     = 16    // OFPPF_1GB_HD
+	OFPPF1GbFd     = 32    // OFPPF_1GB_FD
+	OFPPF10GbFd    = 64    // OFPPF_10GB_FD
+	OFPPF40GbFd    = 128   // OFPPF_40GB_FD
+	OFPPF100GbFd   = 256   // OFPPF_100GB_FD
+	OFPPF1TbFd     = 512   // OFPPF_1TB_FD
+	OFPPFOther     = 1024  // OFPPF_OTHER
+	OFPPFCopper    = 2048  // OFPPF_COPPER
+	OFPPFFiber     = 4096  // OFPPF_FIBER
+	OFPPFAutoneg   = 8192  // OFPPF_AUTONEG
+	OFPPFPause     = 16384 // OFPPF_PAUSE
+	OFPPFPauseAsym = 32768 // OFPPF_PAUSE_ASYM
+)
+
+type PortFeatures uint32
+
+func (self PortFeatures) MarshalJSON() ([]byte, error) {
+	var flags []string
+	if self&OFPPF10MbHd == OFPPF10MbHd {
+		flags = append(flags, "\"10MbHd\": true")
+	}
+	if self&OFPPF10MbFd == OFPPF10MbFd {
+		flags = append(flags, "\"10MbFd\": true")
+	}
+	if self&OFPPF100MbHd == OFPPF100MbHd {
+		flags = append(flags, "\"100MbHd\": true")
+	}
+	if self&OFPPF100MbFd == OFPPF100MbFd {
+		flags = append(flags, "\"100MbFd\": true")
+	}
+	if self&OFPPF1GbHd == OFPPF1GbHd {
+		flags = append(flags, "\"1GbHd\": true")
+	}
+	if self&OFPPF1GbFd == OFPPF1GbFd {
+		flags = append(flags, "\"1GbFd\": true")
+	}
+	if self&OFPPF10GbFd == OFPPF10GbFd {
+		flags = append(flags, "\"10GbFd\": true")
+	}
+	if self&OFPPF40GbFd == OFPPF40GbFd {
+		flags = append(flags, "\"40GbFd\": true")
+	}
+	if self&OFPPF100GbFd == OFPPF100GbFd {
+		flags = append(flags, "\"100GbFd\": true")
+	}
+	if self&OFPPF1TbFd == OFPPF1TbFd {
+		flags = append(flags, "\"1TbFd\": true")
+	}
+	if self&OFPPFOther == OFPPFOther {
+		flags = append(flags, "\"Other\": true")
+	}
+	if self&OFPPFCopper == OFPPFCopper {
+		flags = append(flags, "\"Copper\": true")
+	}
+	if self&OFPPFFiber == OFPPFFiber {
+		flags = append(flags, "\"Fiber\": true")
+	}
+	if self&OFPPFAutoneg == OFPPFAutoneg {
+		flags = append(flags, "\"Autoneg\": true")
+	}
+	if self&OFPPFPause == OFPPFPause {
+		flags = append(flags, "\"Pause\": true")
+	}
+	if self&OFPPFPauseAsym == OFPPFPauseAsym {
+		flags = append(flags, "\"PauseAsym\": true")
+	}
+	return []byte("{" + strings.Join(flags, ", ") + "}"), nil
+}
+
+const (
+	// Identifiers from group ofp_port_mod_failed_code
+	OFPPMFCBadPort      = 0 // OFPPMFC_BAD_PORT
+	OFPPMFCBadHwAddr    = 1 // OFPPMFC_BAD_HW_ADDR
+	OFPPMFCBadConfig    = 2 // OFPPMFC_BAD_CONFIG
+	OFPPMFCBadAdvertise = 3 // OFPPMFC_BAD_ADVERTISE
+)
+
+type PortModFailedCode uint16
+
+func (self PortModFailedCode) MarshalJSON() ([]byte, error) {
+	return []byte(fmt.Sprintf("%d", self)), nil
+}
+
+const (
+	// Identifiers from group ofp_port_reason
+	OFPPRAdd    = 0 // OFPPR_ADD
+	OFPPRDelete = 1 // OFPPR_DELETE
+	OFPPRModify = 2 // OFPPR_MODIFY
+)
+
+type PortReason uint8
+
+func (self PortReason) MarshalJSON() ([]byte, error) {
+	return []byte(fmt.Sprintf("%d", self)), nil
+}
+
+const (
+	// Identifiers from group ofp_port_state
+	OFPPSLinkDown = 1 // OFPPS_LINK_DOWN
+	OFPPSBlocked  = 2 // OFPPS_BLOCKED
+	OFPPSLive     = 4 // OFPPS_LIVE
+)
+
+type PortState uint32
+
+func (self PortState) MarshalJSON() ([]byte, error) {
+	var flags []string
+	if self&OFPPSLinkDown == OFPPSLinkDown {
+		flags = append(flags, "\"LinkDown\": true")
+	}
+	if self&OFPPSBlocked == OFPPSBlocked {
+		flags = append(flags, "\"Blocked\": true")
+	}
+	if self&OFPPSLive == OFPPSLive {
+		flags = append(flags, "\"Live\": true")
+	}
+	return []byte("{" + strings.Join(flags, ", ") + "}"), nil
+}
+
+const (
+	// Identifiers from group ofp_queue_op_failed_code
+	OFPQOFCBadPort  = 0 // OFPQOFC_BAD_PORT
+	OFPQOFCBadQueue = 1 // OFPQOFC_BAD_QUEUE
+	OFPQOFCEperm    = 2 // OFPQOFC_EPERM
+)
+
+type QueueOpFailedCode uint16
+
+func (self QueueOpFailedCode) MarshalJSON() ([]byte, error) {
+	return []byte(fmt.Sprintf("%d", self)), nil
+}
+
+const (
+	// Identifiers from group ofp_queue_properties
+	OFPQTNone    = 0 // OFPQT_NONE
+	OFPQTMinRate = 1 // OFPQT_MIN_RATE
+)
+
+type QueueProperties uint16
+
+func (self QueueProperties) MarshalJSON() ([]byte, error) {
+	return []byte(fmt.Sprintf("%d", self)), nil
+}
+
+const (
+	// Identifiers from group ofp_stats_reply_flags
+	OFPSFReplyMore = 1 // OFPSF_REPLY_MORE
+)
+
+type StatsReplyFlags uint16
+
+func (self StatsReplyFlags) MarshalJSON() ([]byte, error) {
+	var flags []string
+	if self&OFPSFReplyMore == OFPSFReplyMore {
+		flags = append(flags, "\"OFPSFReplyMore\": true")
+	}
+	return []byte("{" + strings.Join(flags, ", ") + "}"), nil
+}
+
+const (
+// Identifiers from group ofp_stats_request_flags
+)
+
+type StatsRequestFlags uint16
+
+func (self StatsRequestFlags) MarshalJSON() ([]byte, error) {
+	var flags []string
+	return []byte("{" + strings.Join(flags, ", ") + "}"), nil
+}
+
+const (
+	// Identifiers from group ofp_stats_type
+	OFPSTDesc         = 0     // OFPST_DESC
+	OFPSTFlow         = 1     // OFPST_FLOW
+	OFPSTAggregate    = 2     // OFPST_AGGREGATE
+	OFPSTTable        = 3     // OFPST_TABLE
+	OFPSTPort         = 4     // OFPST_PORT
+	OFPSTQueue        = 5     // OFPST_QUEUE
+	OFPSTGroup        = 6     // OFPST_GROUP
+	OFPSTGroupDesc    = 7     // OFPST_GROUP_DESC
+	OFPSTExperimenter = 65535 // OFPST_EXPERIMENTER
+)
+
+type StatsType uint16
+
+func (self StatsType) MarshalJSON() ([]byte, error) {
+	return []byte(fmt.Sprintf("%d", self)), nil
+}
+
+const (
+	// Identifiers from group ofp_switch_config_failed_code
+	OFPSCFCBadFlags = 0 // OFPSCFC_BAD_FLAGS
+	OFPSCFCBadLen   = 1 // OFPSCFC_BAD_LEN
+)
+
+type SwitchConfigFailedCode uint16
+
+func (self SwitchConfigFailedCode) MarshalJSON() ([]byte, error) {
+	return []byte(fmt.Sprintf("%d", self)), nil
+}
+
+const (
+	// Identifiers from group ofp_table_config
+	OFPTCTableMissController = 0 // OFPTC_TABLE_MISS_CONTROLLER
+	OFPTCTableMissContinue   = 1 // OFPTC_TABLE_MISS_CONTINUE
+	OFPTCTableMissDrop       = 2 // OFPTC_TABLE_MISS_DROP
+	OFPTCTableMissMask       = 3 // OFPTC_TABLE_MISS_MASK
+)
+
+type TableConfig uint32
+
+func (self TableConfig) MarshalJSON() ([]byte, error) {
+	var flags []string
+	if self&OFPTCTableMissController == OFPTCTableMissController {
+		flags = append(flags, "\"Controller\": true")
+	}
+	if self&OFPTCTableMissContinue == OFPTCTableMissContinue {
+		flags = append(flags, "\"Continue\": true")
+	}
+	if self&OFPTCTableMissDrop == OFPTCTableMissDrop {
+		flags = append(flags, "\"Drop\": true")
+	}
+	if self&OFPTCTableMissMask == OFPTCTableMissMask {
+		flags = append(flags, "\"Mask\": true")
+	}
+	return []byte("{" + strings.Join(flags, ", ") + "}"), nil
+}
+
+const (
+	// Identifiers from group ofp_table_mod_failed_code
+	OFPTMFCBadTable  = 0 // OFPTMFC_BAD_TABLE
+	OFPTMFCBadConfig = 1 // OFPTMFC_BAD_CONFIG
+)
+
+type TableModFailedCode uint16
+
+func (self TableModFailedCode) MarshalJSON() ([]byte, error) {
+	return []byte(fmt.Sprintf("%d", self)), nil
+}
+
+const (
+	// Identifiers from group ofp_tcp_flags
+	TcpFlagCwr = 128 // TCP_FLAG_CWR
+	TcpFlagEce = 64  // TCP_FLAG_ECE
+	TcpFlagUrg = 32  // TCP_FLAG_URG
+	TcpFlagAck = 16  // TCP_FLAG_ACK
+	TcpFlagPsh = 8   // TCP_FLAG_PSH
+	TcpFlagRst = 4   // TCP_FLAG_RST
+	TcpFlagSyn = 2   // TCP_FLAG_SYN
+	TcpFlagFin = 1   // TCP_FLAG_FIN
+)
+
+type TcpFlags uint16
+
+func (self TcpFlags) MarshalJSON() ([]byte, error) {
+	var flags []string
+	if self&TcpFlagCwr == TcpFlagCwr {
+		flags = append(flags, "\"Cwr\": true")
+	}
+	if self&TcpFlagEce == TcpFlagEce {
+		flags = append(flags, "\"Ece\": true")
+	}
+	if self&TcpFlagUrg == TcpFlagUrg {
+		flags = append(flags, "\"Urg\": true")
+	}
+	if self&TcpFlagAck == TcpFlagAck {
+		flags = append(flags, "\"Ack\": true")
+	}
+	if self&TcpFlagPsh == TcpFlagPsh {
+		flags = append(flags, "\"Psh\": true")
+	}
+	if self&TcpFlagRst == TcpFlagRst {
+		flags = append(flags, "\"Rst\": true")
+	}
+	if self&TcpFlagSyn == TcpFlagSyn {
+		flags = append(flags, "\"Syn\": true")
+	}
+	if self&TcpFlagFin == TcpFlagFin {
+		flags = append(flags, "\"Fin\": true")
+	}
+	return []byte("{" + strings.Join(flags, ", ") + "}"), nil
+}
+
+const (
+	// Identifiers from group ofp_type
+	OFPTHello                 = 0  // OFPT_HELLO
+	OFPTError                 = 1  // OFPT_ERROR
+	OFPTEchoRequest           = 2  // OFPT_ECHO_REQUEST
+	OFPTEchoReply             = 3  // OFPT_ECHO_REPLY
+	OFPTExperimenter          = 4  // OFPT_EXPERIMENTER
+	OFPTFeaturesRequest       = 5  // OFPT_FEATURES_REQUEST
+	OFPTFeaturesReply         = 6  // OFPT_FEATURES_REPLY
+	OFPTGetConfigRequest      = 7  // OFPT_GET_CONFIG_REQUEST
+	OFPTGetConfigReply        = 8  // OFPT_GET_CONFIG_REPLY
+	OFPTSetConfig             = 9  // OFPT_SET_CONFIG
+	OFPTPacketIn              = 10 // OFPT_PACKET_IN
+	OFPTFlowRemoved           = 11 // OFPT_FLOW_REMOVED
+	OFPTPortStatus            = 12 // OFPT_PORT_STATUS
+	OFPTPacketOut             = 13 // OFPT_PACKET_OUT
+	OFPTFlowMod               = 14 // OFPT_FLOW_MOD
+	OFPTGroupMod              = 15 // OFPT_GROUP_MOD
+	OFPTPortMod               = 16 // OFPT_PORT_MOD
+	OFPTTableMod              = 17 // OFPT_TABLE_MOD
+	OFPTStatsRequest          = 18 // OFPT_STATS_REQUEST
+	OFPTStatsReply            = 19 // OFPT_STATS_REPLY
+	OFPTBarrierRequest        = 20 // OFPT_BARRIER_REQUEST
+	OFPTBarrierReply          = 21 // OFPT_BARRIER_REPLY
+	OFPTQueueGetConfigRequest = 22 // OFPT_QUEUE_GET_CONFIG_REQUEST
+	OFPTQueueGetConfigReply   = 23 // OFPT_QUEUE_GET_CONFIG_REPLY
+)
+
+type Type uint8
+
+func (self Type) MarshalJSON() ([]byte, error) {
+	return []byte(fmt.Sprintf("\"%s\"", self)), nil
+}
+
+func (self Type) String() string {
+	switch self {
+	case OFPTHello:
+		return "hello"
+	case OFPTError:
+		return "error"
+	case OFPTEchoRequest:
+		return "echo_request"
+	case OFPTEchoReply:
+		return "echo_reply"
+	case OFPTExperimenter:
+		return "experimenter"
+	case OFPTFeaturesRequest:
+		return "features_request"
+	case OFPTFeaturesReply:
+		return "features_reply"
+	case OFPTGetConfigRequest:
+		return "get_config_request"
+	case OFPTGetConfigReply:
+		return "get_config_reply"
+	case OFPTSetConfig:
+		return "set_config"
+	case OFPTPacketIn:
+		return "packet_in"
+	case OFPTFlowRemoved:
+		return "flow_removed"
+	case OFPTPortStatus:
+		return "port_status"
+	case OFPTPacketOut:
+		return "packet_out"
+	case OFPTFlowMod:
+		return "flow_mod"
+	case OFPTGroupMod:
+		return "group_mod"
+	case OFPTPortMod:
+		return "port_mod"
+	case OFPTTableMod:
+		return "table_mod"
+	case OFPTStatsRequest:
+		return "stats_request"
+	case OFPTStatsReply:
+		return "stats_reply"
+	case OFPTBarrierRequest:
+		return "barrier_request"
+	case OFPTBarrierReply:
+		return "barrier_reply"
+	case OFPTQueueGetConfigRequest:
+		return "queue_get_config_request"
+	case OFPTQueueGetConfigReply:
+		return "queue_get_config_reply"
+	default:
+		return fmt.Sprintf("%d", self)
+	}
+}
+
+const (
+	// Identifiers from group ofp_vlan_id
+	OFPVIDAny  = 65534 // OFPVID_ANY
+	OFPVIDNone = 65535 // OFPVID_NONE
+)
+
+type VlanId uint16
+
+func (self VlanId) MarshalJSON() ([]byte, error) {
+	return []byte(fmt.Sprintf("%d", self)), nil
+}