diff --git a/vendor/github.com/google/gopacket/layers/lldp.go b/vendor/github.com/google/gopacket/layers/lldp.go
new file mode 100644
index 0000000..16a5bba
--- /dev/null
+++ b/vendor/github.com/google/gopacket/layers/lldp.go
@@ -0,0 +1,1603 @@
+// Copyright 2012 Google, Inc. All rights reserved.
+//
+// Use of this source code is governed by a BSD-style license
+// that can be found in the LICENSE file in the root of the source
+// tree.
+
+package layers
+
+import (
+	"encoding/binary"
+	"errors"
+	"fmt"
+
+	"github.com/google/gopacket"
+)
+
+// LLDPTLVType is the type of each TLV value in a LinkLayerDiscovery packet.
+type LLDPTLVType byte
+
+const (
+	LLDPTLVEnd             LLDPTLVType = 0
+	LLDPTLVChassisID       LLDPTLVType = 1
+	LLDPTLVPortID          LLDPTLVType = 2
+	LLDPTLVTTL             LLDPTLVType = 3
+	LLDPTLVPortDescription LLDPTLVType = 4
+	LLDPTLVSysName         LLDPTLVType = 5
+	LLDPTLVSysDescription  LLDPTLVType = 6
+	LLDPTLVSysCapabilities LLDPTLVType = 7
+	LLDPTLVMgmtAddress     LLDPTLVType = 8
+	LLDPTLVOrgSpecific     LLDPTLVType = 127
+)
+
+// LinkLayerDiscoveryValue is a TLV value inside a LinkLayerDiscovery packet layer.
+type LinkLayerDiscoveryValue struct {
+	Type   LLDPTLVType
+	Length uint16
+	Value  []byte
+}
+
+func (c *LinkLayerDiscoveryValue) len() int {
+	return 0
+}
+
+// LLDPChassisIDSubType specifies the value type for a single LLDPChassisID.ID
+type LLDPChassisIDSubType byte
+
+// LLDP Chassis Types
+const (
+	LLDPChassisIDSubTypeReserved    LLDPChassisIDSubType = 0
+	LLDPChassisIDSubTypeChassisComp LLDPChassisIDSubType = 1
+	LLDPChassisIDSubtypeIfaceAlias  LLDPChassisIDSubType = 2
+	LLDPChassisIDSubTypePortComp    LLDPChassisIDSubType = 3
+	LLDPChassisIDSubTypeMACAddr     LLDPChassisIDSubType = 4
+	LLDPChassisIDSubTypeNetworkAddr LLDPChassisIDSubType = 5
+	LLDPChassisIDSubtypeIfaceName   LLDPChassisIDSubType = 6
+	LLDPChassisIDSubTypeLocal       LLDPChassisIDSubType = 7
+)
+
+type LLDPChassisID struct {
+	Subtype LLDPChassisIDSubType
+	ID      []byte
+}
+
+func (c *LLDPChassisID) serialize() []byte {
+
+	var buf = make([]byte, c.serializedLen())
+	idLen := uint16(LLDPTLVChassisID)<<9 | uint16(len(c.ID)+1) //id should take 7 bits, length should take 9 bits, +1 for subtype
+	binary.BigEndian.PutUint16(buf[0:2], idLen)
+	buf[2] = byte(c.Subtype)
+	copy(buf[3:], c.ID)
+	return buf
+}
+
+func (c *LLDPChassisID) serializedLen() int {
+	return len(c.ID) + 3 // +2 for id and length, +1 for subtype
+}
+
+// LLDPPortIDSubType specifies the value type for a single LLDPPortID.ID
+type LLDPPortIDSubType byte
+
+// LLDP PortID types
+const (
+	LLDPPortIDSubtypeReserved       LLDPPortIDSubType = 0
+	LLDPPortIDSubtypeIfaceAlias     LLDPPortIDSubType = 1
+	LLDPPortIDSubtypePortComp       LLDPPortIDSubType = 2
+	LLDPPortIDSubtypeMACAddr        LLDPPortIDSubType = 3
+	LLDPPortIDSubtypeNetworkAddr    LLDPPortIDSubType = 4
+	LLDPPortIDSubtypeIfaceName      LLDPPortIDSubType = 5
+	LLDPPortIDSubtypeAgentCircuitID LLDPPortIDSubType = 6
+	LLDPPortIDSubtypeLocal          LLDPPortIDSubType = 7
+)
+
+type LLDPPortID struct {
+	Subtype LLDPPortIDSubType
+	ID      []byte
+}
+
+func (c *LLDPPortID) serialize() []byte {
+
+	var buf = make([]byte, c.serializedLen())
+	idLen := uint16(LLDPTLVPortID)<<9 | uint16(len(c.ID)+1) //id should take 7 bits, length should take 9 bits, +1 for subtype
+	binary.BigEndian.PutUint16(buf[0:2], idLen)
+	buf[2] = byte(c.Subtype)
+	copy(buf[3:], c.ID)
+	return buf
+}
+
+func (c *LLDPPortID) serializedLen() int {
+	return len(c.ID) + 3 // +2 for id and length, +1 for subtype
+}
+
+// LinkLayerDiscovery is a packet layer containing the LinkLayer Discovery Protocol.
+// See http:http://standards.ieee.org/getieee802/download/802.1AB-2009.pdf
+// ChassisID, PortID and TTL are mandatory TLV's. Other values can be decoded
+// with DecodeValues()
+type LinkLayerDiscovery struct {
+	BaseLayer
+	ChassisID LLDPChassisID
+	PortID    LLDPPortID
+	TTL       uint16
+	Values    []LinkLayerDiscoveryValue
+}
+
+type IEEEOUI uint32
+
+// http://standards.ieee.org/develop/regauth/oui/oui.txt
+const (
+	IEEEOUI8021     IEEEOUI = 0x0080c2
+	IEEEOUI8023     IEEEOUI = 0x00120f
+	IEEEOUI80211    IEEEOUI = 0x000fac
+	IEEEOUI8021Qbg  IEEEOUI = 0x0013BF
+	IEEEOUICisco2   IEEEOUI = 0x000142
+	IEEEOUIMedia    IEEEOUI = 0x0012bb // TR-41
+	IEEEOUIProfinet IEEEOUI = 0x000ecf
+	IEEEOUIDCBX     IEEEOUI = 0x001b21
+)
+
+// LLDPOrgSpecificTLV is an Organisation-specific TLV
+type LLDPOrgSpecificTLV struct {
+	OUI     IEEEOUI
+	SubType uint8
+	Info    []byte
+}
+
+// LLDPCapabilities Types
+const (
+	LLDPCapsOther       uint16 = 1 << 0
+	LLDPCapsRepeater    uint16 = 1 << 1
+	LLDPCapsBridge      uint16 = 1 << 2
+	LLDPCapsWLANAP      uint16 = 1 << 3
+	LLDPCapsRouter      uint16 = 1 << 4
+	LLDPCapsPhone       uint16 = 1 << 5
+	LLDPCapsDocSis      uint16 = 1 << 6
+	LLDPCapsStationOnly uint16 = 1 << 7
+	LLDPCapsCVLAN       uint16 = 1 << 8
+	LLDPCapsSVLAN       uint16 = 1 << 9
+	LLDPCapsTmpr        uint16 = 1 << 10
+)
+
+// LLDPCapabilities represents the capabilities of a device
+type LLDPCapabilities struct {
+	Other       bool
+	Repeater    bool
+	Bridge      bool
+	WLANAP      bool
+	Router      bool
+	Phone       bool
+	DocSis      bool
+	StationOnly bool
+	CVLAN       bool
+	SVLAN       bool
+	TMPR        bool
+}
+
+type LLDPSysCapabilities struct {
+	SystemCap  LLDPCapabilities
+	EnabledCap LLDPCapabilities
+}
+
+type IANAAddressFamily byte
+
+// LLDP Management Address Subtypes
+// http://www.iana.org/assignments/address-family-numbers/address-family-numbers.xml
+const (
+	IANAAddressFamilyReserved IANAAddressFamily = 0
+	IANAAddressFamilyIPV4     IANAAddressFamily = 1
+	IANAAddressFamilyIPV6     IANAAddressFamily = 2
+	IANAAddressFamilyNSAP     IANAAddressFamily = 3
+	IANAAddressFamilyHDLC     IANAAddressFamily = 4
+	IANAAddressFamilyBBN1822  IANAAddressFamily = 5
+	IANAAddressFamily802      IANAAddressFamily = 6
+	IANAAddressFamilyE163     IANAAddressFamily = 7
+	IANAAddressFamilyE164     IANAAddressFamily = 8
+	IANAAddressFamilyF69      IANAAddressFamily = 9
+	IANAAddressFamilyX121     IANAAddressFamily = 10
+	IANAAddressFamilyIPX      IANAAddressFamily = 11
+	IANAAddressFamilyAtalk    IANAAddressFamily = 12
+	IANAAddressFamilyDecnet   IANAAddressFamily = 13
+	IANAAddressFamilyBanyan   IANAAddressFamily = 14
+	IANAAddressFamilyE164NSAP IANAAddressFamily = 15
+	IANAAddressFamilyDNS      IANAAddressFamily = 16
+	IANAAddressFamilyDistname IANAAddressFamily = 17
+	IANAAddressFamilyASNumber IANAAddressFamily = 18
+	IANAAddressFamilyXTPIPV4  IANAAddressFamily = 19
+	IANAAddressFamilyXTPIPV6  IANAAddressFamily = 20
+	IANAAddressFamilyXTP      IANAAddressFamily = 21
+	IANAAddressFamilyFcWWPN   IANAAddressFamily = 22
+	IANAAddressFamilyFcWWNN   IANAAddressFamily = 23
+	IANAAddressFamilyGWID     IANAAddressFamily = 24
+	IANAAddressFamilyL2VPN    IANAAddressFamily = 25
+)
+
+type LLDPInterfaceSubtype byte
+
+// LLDP Interface Subtypes
+const (
+	LLDPInterfaceSubtypeUnknown LLDPInterfaceSubtype = 1
+	LLDPInterfaceSubtypeifIndex LLDPInterfaceSubtype = 2
+	LLDPInterfaceSubtypeSysPort LLDPInterfaceSubtype = 3
+)
+
+type LLDPMgmtAddress struct {
+	Subtype          IANAAddressFamily
+	Address          []byte
+	InterfaceSubtype LLDPInterfaceSubtype
+	InterfaceNumber  uint32
+	OID              string
+}
+
+// LinkLayerDiscoveryInfo represents the decoded details for a set of LinkLayerDiscoveryValues
+// Organisation-specific TLV's can be decoded using the various Decode() methods
+type LinkLayerDiscoveryInfo struct {
+	BaseLayer
+	PortDescription string
+	SysName         string
+	SysDescription  string
+	SysCapabilities LLDPSysCapabilities
+	MgmtAddress     LLDPMgmtAddress
+	OrgTLVs         []LLDPOrgSpecificTLV      // Private TLVs
+	Unknown         []LinkLayerDiscoveryValue // undecoded TLVs
+}
+
+/// IEEE 802.1 TLV Subtypes
+const (
+	LLDP8021SubtypePortVLANID       uint8 = 1
+	LLDP8021SubtypeProtocolVLANID   uint8 = 2
+	LLDP8021SubtypeVLANName         uint8 = 3
+	LLDP8021SubtypeProtocolIdentity uint8 = 4
+	LLDP8021SubtypeVDIUsageDigest   uint8 = 5
+	LLDP8021SubtypeManagementVID    uint8 = 6
+	LLDP8021SubtypeLinkAggregation  uint8 = 7
+)
+
+// VLAN Port Protocol ID options
+const (
+	LLDPProtocolVLANIDCapability byte = 1 << 1
+	LLDPProtocolVLANIDStatus     byte = 1 << 2
+)
+
+type PortProtocolVLANID struct {
+	Supported bool
+	Enabled   bool
+	ID        uint16
+}
+
+type VLANName struct {
+	ID   uint16
+	Name string
+}
+
+type ProtocolIdentity []byte
+
+// LACP options
+const (
+	LLDPAggregationCapability byte = 1 << 0
+	LLDPAggregationStatus     byte = 1 << 1
+)
+
+// IEEE 802 Link Aggregation parameters
+type LLDPLinkAggregation struct {
+	Supported bool
+	Enabled   bool
+	PortID    uint32
+}
+
+// LLDPInfo8021 represents the information carried in 802.1 Org-specific TLVs
+type LLDPInfo8021 struct {
+	PVID               uint16
+	PPVIDs             []PortProtocolVLANID
+	VLANNames          []VLANName
+	ProtocolIdentities []ProtocolIdentity
+	VIDUsageDigest     uint32
+	ManagementVID      uint16
+	LinkAggregation    LLDPLinkAggregation
+}
+
+// IEEE 802.3 TLV Subtypes
+const (
+	LLDP8023SubtypeMACPHY          uint8 = 1
+	LLDP8023SubtypeMDIPower        uint8 = 2
+	LLDP8023SubtypeLinkAggregation uint8 = 3
+	LLDP8023SubtypeMTU             uint8 = 4
+)
+
+// MACPHY options
+const (
+	LLDPMACPHYCapability byte = 1 << 0
+	LLDPMACPHYStatus     byte = 1 << 1
+)
+
+// From IANA-MAU-MIB (introduced by RFC 4836) - dot3MauType
+const (
+	LLDPMAUTypeUnknown         uint16 = 0
+	LLDPMAUTypeAUI             uint16 = 1
+	LLDPMAUType10Base5         uint16 = 2
+	LLDPMAUTypeFOIRL           uint16 = 3
+	LLDPMAUType10Base2         uint16 = 4
+	LLDPMAUType10BaseT         uint16 = 5
+	LLDPMAUType10BaseFP        uint16 = 6
+	LLDPMAUType10BaseFB        uint16 = 7
+	LLDPMAUType10BaseFL        uint16 = 8
+	LLDPMAUType10BROAD36       uint16 = 9
+	LLDPMAUType10BaseT_HD      uint16 = 10
+	LLDPMAUType10BaseT_FD      uint16 = 11
+	LLDPMAUType10BaseFL_HD     uint16 = 12
+	LLDPMAUType10BaseFL_FD     uint16 = 13
+	LLDPMAUType100BaseT4       uint16 = 14
+	LLDPMAUType100BaseTX_HD    uint16 = 15
+	LLDPMAUType100BaseTX_FD    uint16 = 16
+	LLDPMAUType100BaseFX_HD    uint16 = 17
+	LLDPMAUType100BaseFX_FD    uint16 = 18
+	LLDPMAUType100BaseT2_HD    uint16 = 19
+	LLDPMAUType100BaseT2_FD    uint16 = 20
+	LLDPMAUType1000BaseX_HD    uint16 = 21
+	LLDPMAUType1000BaseX_FD    uint16 = 22
+	LLDPMAUType1000BaseLX_HD   uint16 = 23
+	LLDPMAUType1000BaseLX_FD   uint16 = 24
+	LLDPMAUType1000BaseSX_HD   uint16 = 25
+	LLDPMAUType1000BaseSX_FD   uint16 = 26
+	LLDPMAUType1000BaseCX_HD   uint16 = 27
+	LLDPMAUType1000BaseCX_FD   uint16 = 28
+	LLDPMAUType1000BaseT_HD    uint16 = 29
+	LLDPMAUType1000BaseT_FD    uint16 = 30
+	LLDPMAUType10GBaseX        uint16 = 31
+	LLDPMAUType10GBaseLX4      uint16 = 32
+	LLDPMAUType10GBaseR        uint16 = 33
+	LLDPMAUType10GBaseER       uint16 = 34
+	LLDPMAUType10GBaseLR       uint16 = 35
+	LLDPMAUType10GBaseSR       uint16 = 36
+	LLDPMAUType10GBaseW        uint16 = 37
+	LLDPMAUType10GBaseEW       uint16 = 38
+	LLDPMAUType10GBaseLW       uint16 = 39
+	LLDPMAUType10GBaseSW       uint16 = 40
+	LLDPMAUType10GBaseCX4      uint16 = 41
+	LLDPMAUType2BaseTL         uint16 = 42
+	LLDPMAUType10PASS_TS       uint16 = 43
+	LLDPMAUType100BaseBX10D    uint16 = 44
+	LLDPMAUType100BaseBX10U    uint16 = 45
+	LLDPMAUType100BaseLX10     uint16 = 46
+	LLDPMAUType1000BaseBX10D   uint16 = 47
+	LLDPMAUType1000BaseBX10U   uint16 = 48
+	LLDPMAUType1000BaseLX10    uint16 = 49
+	LLDPMAUType1000BasePX10D   uint16 = 50
+	LLDPMAUType1000BasePX10U   uint16 = 51
+	LLDPMAUType1000BasePX20D   uint16 = 52
+	LLDPMAUType1000BasePX20U   uint16 = 53
+	LLDPMAUType10GBaseT        uint16 = 54
+	LLDPMAUType10GBaseLRM      uint16 = 55
+	LLDPMAUType1000BaseKX      uint16 = 56
+	LLDPMAUType10GBaseKX4      uint16 = 57
+	LLDPMAUType10GBaseKR       uint16 = 58
+	LLDPMAUType10_1GBasePRX_D1 uint16 = 59
+	LLDPMAUType10_1GBasePRX_D2 uint16 = 60
+	LLDPMAUType10_1GBasePRX_D3 uint16 = 61
+	LLDPMAUType10_1GBasePRX_U1 uint16 = 62
+	LLDPMAUType10_1GBasePRX_U2 uint16 = 63
+	LLDPMAUType10_1GBasePRX_U3 uint16 = 64
+	LLDPMAUType10GBasePR_D1    uint16 = 65
+	LLDPMAUType10GBasePR_D2    uint16 = 66
+	LLDPMAUType10GBasePR_D3    uint16 = 67
+	LLDPMAUType10GBasePR_U1    uint16 = 68
+	LLDPMAUType10GBasePR_U3    uint16 = 69
+)
+
+// From RFC 3636 - ifMauAutoNegCapAdvertisedBits
+const (
+	LLDPMAUPMDOther        uint16 = 1 << 15
+	LLDPMAUPMD10BaseT      uint16 = 1 << 14
+	LLDPMAUPMD10BaseT_FD   uint16 = 1 << 13
+	LLDPMAUPMD100BaseT4    uint16 = 1 << 12
+	LLDPMAUPMD100BaseTX    uint16 = 1 << 11
+	LLDPMAUPMD100BaseTX_FD uint16 = 1 << 10
+	LLDPMAUPMD100BaseT2    uint16 = 1 << 9
+	LLDPMAUPMD100BaseT2_FD uint16 = 1 << 8
+	LLDPMAUPMDFDXPAUSE     uint16 = 1 << 7
+	LLDPMAUPMDFDXAPAUSE    uint16 = 1 << 6
+	LLDPMAUPMDFDXSPAUSE    uint16 = 1 << 5
+	LLDPMAUPMDFDXBPAUSE    uint16 = 1 << 4
+	LLDPMAUPMD1000BaseX    uint16 = 1 << 3
+	LLDPMAUPMD1000BaseX_FD uint16 = 1 << 2
+	LLDPMAUPMD1000BaseT    uint16 = 1 << 1
+	LLDPMAUPMD1000BaseT_FD uint16 = 1 << 0
+)
+
+// Inverted ifMauAutoNegCapAdvertisedBits if required
+// (Some manufacturers misinterpreted the spec -
+// see https://bugs.wireshark.org/bugzilla/show_bug.cgi?id=1455)
+const (
+	LLDPMAUPMDOtherInv        uint16 = 1 << 0
+	LLDPMAUPMD10BaseTInv      uint16 = 1 << 1
+	LLDPMAUPMD10BaseT_FDInv   uint16 = 1 << 2
+	LLDPMAUPMD100BaseT4Inv    uint16 = 1 << 3
+	LLDPMAUPMD100BaseTXInv    uint16 = 1 << 4
+	LLDPMAUPMD100BaseTX_FDInv uint16 = 1 << 5
+	LLDPMAUPMD100BaseT2Inv    uint16 = 1 << 6
+	LLDPMAUPMD100BaseT2_FDInv uint16 = 1 << 7
+	LLDPMAUPMDFDXPAUSEInv     uint16 = 1 << 8
+	LLDPMAUPMDFDXAPAUSEInv    uint16 = 1 << 9
+	LLDPMAUPMDFDXSPAUSEInv    uint16 = 1 << 10
+	LLDPMAUPMDFDXBPAUSEInv    uint16 = 1 << 11
+	LLDPMAUPMD1000BaseXInv    uint16 = 1 << 12
+	LLDPMAUPMD1000BaseX_FDInv uint16 = 1 << 13
+	LLDPMAUPMD1000BaseTInv    uint16 = 1 << 14
+	LLDPMAUPMD1000BaseT_FDInv uint16 = 1 << 15
+)
+
+type LLDPMACPHYConfigStatus struct {
+	AutoNegSupported  bool
+	AutoNegEnabled    bool
+	AutoNegCapability uint16
+	MAUType           uint16
+}
+
+// MDI Power options
+const (
+	LLDPMDIPowerPortClass    byte = 1 << 0
+	LLDPMDIPowerCapability   byte = 1 << 1
+	LLDPMDIPowerStatus       byte = 1 << 2
+	LLDPMDIPowerPairsAbility byte = 1 << 3
+)
+
+type LLDPPowerType byte
+
+type LLDPPowerSource byte
+
+type LLDPPowerPriority byte
+
+const (
+	LLDPPowerPriorityUnknown LLDPPowerPriority = 0
+	LLDPPowerPriorityMedium  LLDPPowerPriority = 1
+	LLDPPowerPriorityHigh    LLDPPowerPriority = 2
+	LLDPPowerPriorityLow     LLDPPowerPriority = 3
+)
+
+type LLDPPowerViaMDI8023 struct {
+	PortClassPSE    bool // false = PD
+	PSESupported    bool
+	PSEEnabled      bool
+	PSEPairsAbility bool
+	PSEPowerPair    uint8
+	PSEClass        uint8
+	Type            LLDPPowerType
+	Source          LLDPPowerSource
+	Priority        LLDPPowerPriority
+	Requested       uint16 // 1-510 Watts
+	Allocated       uint16 // 1-510 Watts
+}
+
+// LLDPInfo8023 represents the information carried in 802.3 Org-specific TLVs
+type LLDPInfo8023 struct {
+	MACPHYConfigStatus LLDPMACPHYConfigStatus
+	PowerViaMDI        LLDPPowerViaMDI8023
+	LinkAggregation    LLDPLinkAggregation
+	MTU                uint16
+}
+
+// IEEE 802.1Qbg TLV Subtypes
+const (
+	LLDP8021QbgEVB   uint8 = 0
+	LLDP8021QbgCDCP  uint8 = 1
+	LLDP8021QbgVDP   uint8 = 2
+	LLDP8021QbgEVB22 uint8 = 13
+)
+
+// LLDPEVBCapabilities Types
+const (
+	LLDPEVBCapsSTD uint16 = 1 << 7
+	LLDPEVBCapsRR  uint16 = 1 << 6
+	LLDPEVBCapsRTE uint16 = 1 << 2
+	LLDPEVBCapsECP uint16 = 1 << 1
+	LLDPEVBCapsVDP uint16 = 1 << 0
+)
+
+// LLDPEVBCapabilities represents the EVB capabilities of a device
+type LLDPEVBCapabilities struct {
+	StandardBridging            bool
+	ReflectiveRelay             bool
+	RetransmissionTimerExponent bool
+	EdgeControlProtocol         bool
+	VSIDiscoveryProtocol        bool
+}
+
+type LLDPEVBSettings struct {
+	Supported      LLDPEVBCapabilities
+	Enabled        LLDPEVBCapabilities
+	SupportedVSIs  uint16
+	ConfiguredVSIs uint16
+	RTEExponent    uint8
+}
+
+// LLDPInfo8021Qbg represents the information carried in 802.1Qbg Org-specific TLVs
+type LLDPInfo8021Qbg struct {
+	EVBSettings LLDPEVBSettings
+}
+
+type LLDPMediaSubtype uint8
+
+// Media TLV Subtypes
+const (
+	LLDPMediaTypeCapabilities LLDPMediaSubtype = 1
+	LLDPMediaTypeNetwork      LLDPMediaSubtype = 2
+	LLDPMediaTypeLocation     LLDPMediaSubtype = 3
+	LLDPMediaTypePower        LLDPMediaSubtype = 4
+	LLDPMediaTypeHardware     LLDPMediaSubtype = 5
+	LLDPMediaTypeFirmware     LLDPMediaSubtype = 6
+	LLDPMediaTypeSoftware     LLDPMediaSubtype = 7
+	LLDPMediaTypeSerial       LLDPMediaSubtype = 8
+	LLDPMediaTypeManufacturer LLDPMediaSubtype = 9
+	LLDPMediaTypeModel        LLDPMediaSubtype = 10
+	LLDPMediaTypeAssetID      LLDPMediaSubtype = 11
+)
+
+type LLDPMediaClass uint8
+
+// Media Class Values
+const (
+	LLDPMediaClassUndefined   LLDPMediaClass = 0
+	LLDPMediaClassEndpointI   LLDPMediaClass = 1
+	LLDPMediaClassEndpointII  LLDPMediaClass = 2
+	LLDPMediaClassEndpointIII LLDPMediaClass = 3
+	LLDPMediaClassNetwork     LLDPMediaClass = 4
+)
+
+// LLDPMediaCapabilities Types
+const (
+	LLDPMediaCapsLLDP      uint16 = 1 << 0
+	LLDPMediaCapsNetwork   uint16 = 1 << 1
+	LLDPMediaCapsLocation  uint16 = 1 << 2
+	LLDPMediaCapsPowerPSE  uint16 = 1 << 3
+	LLDPMediaCapsPowerPD   uint16 = 1 << 4
+	LLDPMediaCapsInventory uint16 = 1 << 5
+)
+
+// LLDPMediaCapabilities represents the LLDP Media capabilities of a device
+type LLDPMediaCapabilities struct {
+	Capabilities  bool
+	NetworkPolicy bool
+	Location      bool
+	PowerPSE      bool
+	PowerPD       bool
+	Inventory     bool
+	Class         LLDPMediaClass
+}
+
+type LLDPApplicationType uint8
+
+const (
+	LLDPAppTypeReserved            LLDPApplicationType = 0
+	LLDPAppTypeVoice               LLDPApplicationType = 1
+	LLDPappTypeVoiceSignaling      LLDPApplicationType = 2
+	LLDPappTypeGuestVoice          LLDPApplicationType = 3
+	LLDPappTypeGuestVoiceSignaling LLDPApplicationType = 4
+	LLDPappTypeSoftphoneVoice      LLDPApplicationType = 5
+	LLDPappTypeVideoConferencing   LLDPApplicationType = 6
+	LLDPappTypeStreamingVideo      LLDPApplicationType = 7
+	LLDPappTypeVideoSignaling      LLDPApplicationType = 8
+)
+
+type LLDPNetworkPolicy struct {
+	ApplicationType LLDPApplicationType
+	Defined         bool
+	Tagged          bool
+	VLANId          uint16
+	L2Priority      uint16
+	DSCPValue       uint8
+}
+
+type LLDPLocationFormat uint8
+
+const (
+	LLDPLocationFormatInvalid    LLDPLocationFormat = 0
+	LLDPLocationFormatCoordinate LLDPLocationFormat = 1
+	LLDPLocationFormatAddress    LLDPLocationFormat = 2
+	LLDPLocationFormatECS        LLDPLocationFormat = 3
+)
+
+type LLDPLocationAddressWhat uint8
+
+const (
+	LLDPLocationAddressWhatDHCP    LLDPLocationAddressWhat = 0
+	LLDPLocationAddressWhatNetwork LLDPLocationAddressWhat = 1
+	LLDPLocationAddressWhatClient  LLDPLocationAddressWhat = 2
+)
+
+type LLDPLocationAddressType uint8
+
+const (
+	LLDPLocationAddressTypeLanguage       LLDPLocationAddressType = 0
+	LLDPLocationAddressTypeNational       LLDPLocationAddressType = 1
+	LLDPLocationAddressTypeCounty         LLDPLocationAddressType = 2
+	LLDPLocationAddressTypeCity           LLDPLocationAddressType = 3
+	LLDPLocationAddressTypeCityDivision   LLDPLocationAddressType = 4
+	LLDPLocationAddressTypeNeighborhood   LLDPLocationAddressType = 5
+	LLDPLocationAddressTypeStreet         LLDPLocationAddressType = 6
+	LLDPLocationAddressTypeLeadingStreet  LLDPLocationAddressType = 16
+	LLDPLocationAddressTypeTrailingStreet LLDPLocationAddressType = 17
+	LLDPLocationAddressTypeStreetSuffix   LLDPLocationAddressType = 18
+	LLDPLocationAddressTypeHouseNum       LLDPLocationAddressType = 19
+	LLDPLocationAddressTypeHouseSuffix    LLDPLocationAddressType = 20
+	LLDPLocationAddressTypeLandmark       LLDPLocationAddressType = 21
+	LLDPLocationAddressTypeAdditional     LLDPLocationAddressType = 22
+	LLDPLocationAddressTypeName           LLDPLocationAddressType = 23
+	LLDPLocationAddressTypePostal         LLDPLocationAddressType = 24
+	LLDPLocationAddressTypeBuilding       LLDPLocationAddressType = 25
+	LLDPLocationAddressTypeUnit           LLDPLocationAddressType = 26
+	LLDPLocationAddressTypeFloor          LLDPLocationAddressType = 27
+	LLDPLocationAddressTypeRoom           LLDPLocationAddressType = 28
+	LLDPLocationAddressTypePlace          LLDPLocationAddressType = 29
+	LLDPLocationAddressTypeScript         LLDPLocationAddressType = 128
+)
+
+type LLDPLocationCoordinate struct {
+	LatitudeResolution  uint8
+	Latitude            uint64
+	LongitudeResolution uint8
+	Longitude           uint64
+	AltitudeType        uint8
+	AltitudeResolution  uint16
+	Altitude            uint32
+	Datum               uint8
+}
+
+type LLDPLocationAddressLine struct {
+	Type  LLDPLocationAddressType
+	Value string
+}
+
+type LLDPLocationAddress struct {
+	What         LLDPLocationAddressWhat
+	CountryCode  string
+	AddressLines []LLDPLocationAddressLine
+}
+
+type LLDPLocationECS struct {
+	ELIN string
+}
+
+// LLDP represents a physical location.
+// Only one of the embedded types will contain values, depending on Format.
+type LLDPLocation struct {
+	Format     LLDPLocationFormat
+	Coordinate LLDPLocationCoordinate
+	Address    LLDPLocationAddress
+	ECS        LLDPLocationECS
+}
+
+type LLDPPowerViaMDI struct {
+	Type     LLDPPowerType
+	Source   LLDPPowerSource
+	Priority LLDPPowerPriority
+	Value    uint16
+}
+
+// LLDPInfoMedia represents the information carried in TR-41 Org-specific TLVs
+type LLDPInfoMedia struct {
+	MediaCapabilities LLDPMediaCapabilities
+	NetworkPolicy     LLDPNetworkPolicy
+	Location          LLDPLocation
+	PowerViaMDI       LLDPPowerViaMDI
+	HardwareRevision  string
+	FirmwareRevision  string
+	SoftwareRevision  string
+	SerialNumber      string
+	Manufacturer      string
+	Model             string
+	AssetID           string
+}
+
+type LLDPCisco2Subtype uint8
+
+// Cisco2 TLV Subtypes
+const (
+	LLDPCisco2PowerViaMDI LLDPCisco2Subtype = 1
+)
+
+const (
+	LLDPCiscoPSESupport   uint8 = 1 << 0
+	LLDPCiscoArchShared   uint8 = 1 << 1
+	LLDPCiscoPDSparePair  uint8 = 1 << 2
+	LLDPCiscoPSESparePair uint8 = 1 << 3
+)
+
+// LLDPInfoCisco2 represents the information carried in Cisco Org-specific TLVs
+type LLDPInfoCisco2 struct {
+	PSEFourWirePoESupported       bool
+	PDSparePairArchitectureShared bool
+	PDRequestSparePairPoEOn       bool
+	PSESparePairPoEOn             bool
+}
+
+// Profinet Subtypes
+type LLDPProfinetSubtype uint8
+
+const (
+	LLDPProfinetPNIODelay         LLDPProfinetSubtype = 1
+	LLDPProfinetPNIOPortStatus    LLDPProfinetSubtype = 2
+	LLDPProfinetPNIOMRPPortStatus LLDPProfinetSubtype = 4
+	LLDPProfinetPNIOChassisMAC    LLDPProfinetSubtype = 5
+	LLDPProfinetPNIOPTCPStatus    LLDPProfinetSubtype = 6
+)
+
+type LLDPPNIODelay struct {
+	RXLocal    uint32
+	RXRemote   uint32
+	TXLocal    uint32
+	TXRemote   uint32
+	CableLocal uint32
+}
+
+type LLDPPNIOPortStatus struct {
+	Class2 uint16
+	Class3 uint16
+}
+
+type LLDPPNIOMRPPortStatus struct {
+	UUID   []byte
+	Status uint16
+}
+
+type LLDPPNIOPTCPStatus struct {
+	MasterAddress     []byte
+	SubdomainUUID     []byte
+	IRDataUUID        []byte
+	PeriodValid       bool
+	PeriodLength      uint32
+	RedPeriodValid    bool
+	RedPeriodBegin    uint32
+	OrangePeriodValid bool
+	OrangePeriodBegin uint32
+	GreenPeriodValid  bool
+	GreenPeriodBegin  uint32
+}
+
+// LLDPInfoProfinet represents the information carried in Profinet Org-specific TLVs
+type LLDPInfoProfinet struct {
+	PNIODelay         LLDPPNIODelay
+	PNIOPortStatus    LLDPPNIOPortStatus
+	PNIOMRPPortStatus LLDPPNIOMRPPortStatus
+	ChassisMAC        []byte
+	PNIOPTCPStatus    LLDPPNIOPTCPStatus
+}
+
+// LayerType returns gopacket.LayerTypeLinkLayerDiscovery.
+func (c *LinkLayerDiscovery) LayerType() gopacket.LayerType {
+	return LayerTypeLinkLayerDiscovery
+}
+
+// SerializeTo serializes LLDP packet to bytes and writes on SerializeBuffer.
+func (c *LinkLayerDiscovery) SerializeTo(b gopacket.SerializeBuffer, opts gopacket.SerializeOptions) error {
+	chassIDLen := c.ChassisID.serializedLen()
+	portIDLen := c.PortID.serializedLen()
+	vb, err := b.AppendBytes(chassIDLen + portIDLen + 4) // +4 for TTL
+	if err != nil {
+		return err
+	}
+	copy(vb[:chassIDLen], c.ChassisID.serialize())
+	copy(vb[chassIDLen:], c.PortID.serialize())
+	ttlIDLen := uint16(LLDPTLVTTL)<<9 | uint16(2)
+	binary.BigEndian.PutUint16(vb[chassIDLen+portIDLen:], ttlIDLen)
+	binary.BigEndian.PutUint16(vb[chassIDLen+portIDLen+2:], c.TTL)
+
+	for _, v := range c.Values {
+		vb, err := b.AppendBytes(int(v.Length) + 2) // +2 for TLV type and length; 1 byte for subtype is included in v.Value
+		if err != nil {
+			return err
+		}
+		idLen := ((uint16(v.Type) << 9) | v.Length)
+		binary.BigEndian.PutUint16(vb[0:2], idLen)
+		copy(vb[2:], v.Value)
+	}
+
+	vb, err = b.AppendBytes(2) // End Tlv, 2 bytes
+	if err != nil {
+		return err
+	}
+	binary.BigEndian.PutUint16(vb[len(vb)-2:], uint16(0)) //End tlv, 2 bytes, all zero
+	return nil
+
+}
+
+func decodeLinkLayerDiscovery(data []byte, p gopacket.PacketBuilder) error {
+	var vals []LinkLayerDiscoveryValue
+	vData := data[0:]
+	for len(vData) > 0 {
+		if len(vData) < 2 {
+			p.SetTruncated()
+			return errors.New("LLDP vdata < 2 bytes")
+		}
+		nbit := vData[0] & 0x01
+		t := LLDPTLVType(vData[0] >> 1)
+		val := LinkLayerDiscoveryValue{Type: t, Length: uint16(nbit)<<8 + uint16(vData[1])}
+		if val.Length > 0 {
+			if len(vData) < int(val.Length+2) {
+				p.SetTruncated()
+				return fmt.Errorf("LLDP VData < %d bytes", val.Length+2)
+			}
+			val.Value = vData[2 : val.Length+2]
+		}
+		vals = append(vals, val)
+		if t == LLDPTLVEnd {
+			break
+		}
+		if len(vData) < int(2+val.Length) {
+			return errors.New("Malformed LinkLayerDiscovery Header")
+		}
+		vData = vData[2+val.Length:]
+	}
+	if len(vals) < 4 {
+		return errors.New("Missing mandatory LinkLayerDiscovery TLV")
+	}
+	c := &LinkLayerDiscovery{}
+	gotEnd := false
+	for _, v := range vals {
+		switch v.Type {
+		case LLDPTLVEnd:
+			gotEnd = true
+		case LLDPTLVChassisID:
+			if len(v.Value) < 2 {
+				return errors.New("Malformed LinkLayerDiscovery ChassisID TLV")
+			}
+			c.ChassisID.Subtype = LLDPChassisIDSubType(v.Value[0])
+			c.ChassisID.ID = v.Value[1:]
+		case LLDPTLVPortID:
+			if len(v.Value) < 2 {
+				return errors.New("Malformed LinkLayerDiscovery PortID TLV")
+			}
+			c.PortID.Subtype = LLDPPortIDSubType(v.Value[0])
+			c.PortID.ID = v.Value[1:]
+		case LLDPTLVTTL:
+			if len(v.Value) < 2 {
+				return errors.New("Malformed LinkLayerDiscovery TTL TLV")
+			}
+			c.TTL = binary.BigEndian.Uint16(v.Value[0:2])
+		default:
+			c.Values = append(c.Values, v)
+		}
+	}
+	if c.ChassisID.Subtype == 0 || c.PortID.Subtype == 0 || !gotEnd {
+		return errors.New("Missing mandatory LinkLayerDiscovery TLV")
+	}
+	c.Contents = data
+	p.AddLayer(c)
+
+	info := &LinkLayerDiscoveryInfo{}
+	p.AddLayer(info)
+	for _, v := range c.Values {
+		switch v.Type {
+		case LLDPTLVPortDescription:
+			info.PortDescription = string(v.Value)
+		case LLDPTLVSysName:
+			info.SysName = string(v.Value)
+		case LLDPTLVSysDescription:
+			info.SysDescription = string(v.Value)
+		case LLDPTLVSysCapabilities:
+			if err := checkLLDPTLVLen(v, 4); err != nil {
+				return err
+			}
+			info.SysCapabilities.SystemCap = getCapabilities(binary.BigEndian.Uint16(v.Value[0:2]))
+			info.SysCapabilities.EnabledCap = getCapabilities(binary.BigEndian.Uint16(v.Value[2:4]))
+		case LLDPTLVMgmtAddress:
+			if err := checkLLDPTLVLen(v, 9); err != nil {
+				return err
+			}
+			mlen := v.Value[0]
+			if err := checkLLDPTLVLen(v, int(mlen+7)); err != nil {
+				return err
+			}
+			info.MgmtAddress.Subtype = IANAAddressFamily(v.Value[1])
+			info.MgmtAddress.Address = v.Value[2 : mlen+1]
+			info.MgmtAddress.InterfaceSubtype = LLDPInterfaceSubtype(v.Value[mlen+1])
+			info.MgmtAddress.InterfaceNumber = binary.BigEndian.Uint32(v.Value[mlen+2 : mlen+6])
+			olen := v.Value[mlen+6]
+			if err := checkLLDPTLVLen(v, int(mlen+7+olen)); err != nil {
+				return err
+			}
+			info.MgmtAddress.OID = string(v.Value[mlen+7 : mlen+7+olen])
+		case LLDPTLVOrgSpecific:
+			if err := checkLLDPTLVLen(v, 4); err != nil {
+				return err
+			}
+			info.OrgTLVs = append(info.OrgTLVs, LLDPOrgSpecificTLV{IEEEOUI(binary.BigEndian.Uint32(append([]byte{byte(0)}, v.Value[0:3]...))), uint8(v.Value[3]), v.Value[4:]})
+		}
+	}
+	return nil
+}
+
+func (l *LinkLayerDiscoveryInfo) Decode8021() (info LLDPInfo8021, err error) {
+	for _, o := range l.OrgTLVs {
+		if o.OUI != IEEEOUI8021 {
+			continue
+		}
+		switch o.SubType {
+		case LLDP8021SubtypePortVLANID:
+			if err = checkLLDPOrgSpecificLen(o, 2); err != nil {
+				return
+			}
+			info.PVID = binary.BigEndian.Uint16(o.Info[0:2])
+		case LLDP8021SubtypeProtocolVLANID:
+			if err = checkLLDPOrgSpecificLen(o, 3); err != nil {
+				return
+			}
+			sup := (o.Info[0]&LLDPProtocolVLANIDCapability > 0)
+			en := (o.Info[0]&LLDPProtocolVLANIDStatus > 0)
+			id := binary.BigEndian.Uint16(o.Info[1:3])
+			info.PPVIDs = append(info.PPVIDs, PortProtocolVLANID{sup, en, id})
+		case LLDP8021SubtypeVLANName:
+			if err = checkLLDPOrgSpecificLen(o, 2); err != nil {
+				return
+			}
+			id := binary.BigEndian.Uint16(o.Info[0:2])
+			info.VLANNames = append(info.VLANNames, VLANName{id, string(o.Info[3:])})
+		case LLDP8021SubtypeProtocolIdentity:
+			if err = checkLLDPOrgSpecificLen(o, 1); err != nil {
+				return
+			}
+			l := int(o.Info[0])
+			if l > 0 {
+				info.ProtocolIdentities = append(info.ProtocolIdentities, o.Info[1:1+l])
+			}
+		case LLDP8021SubtypeVDIUsageDigest:
+			if err = checkLLDPOrgSpecificLen(o, 4); err != nil {
+				return
+			}
+			info.VIDUsageDigest = binary.BigEndian.Uint32(o.Info[0:4])
+		case LLDP8021SubtypeManagementVID:
+			if err = checkLLDPOrgSpecificLen(o, 2); err != nil {
+				return
+			}
+			info.ManagementVID = binary.BigEndian.Uint16(o.Info[0:2])
+		case LLDP8021SubtypeLinkAggregation:
+			if err = checkLLDPOrgSpecificLen(o, 5); err != nil {
+				return
+			}
+			sup := (o.Info[0]&LLDPAggregationCapability > 0)
+			en := (o.Info[0]&LLDPAggregationStatus > 0)
+			info.LinkAggregation = LLDPLinkAggregation{sup, en, binary.BigEndian.Uint32(o.Info[1:5])}
+		}
+	}
+	return
+}
+
+func (l *LinkLayerDiscoveryInfo) Decode8023() (info LLDPInfo8023, err error) {
+	for _, o := range l.OrgTLVs {
+		if o.OUI != IEEEOUI8023 {
+			continue
+		}
+		switch o.SubType {
+		case LLDP8023SubtypeMACPHY:
+			if err = checkLLDPOrgSpecificLen(o, 5); err != nil {
+				return
+			}
+			sup := (o.Info[0]&LLDPMACPHYCapability > 0)
+			en := (o.Info[0]&LLDPMACPHYStatus > 0)
+			ca := binary.BigEndian.Uint16(o.Info[1:3])
+			mau := binary.BigEndian.Uint16(o.Info[3:5])
+			info.MACPHYConfigStatus = LLDPMACPHYConfigStatus{sup, en, ca, mau}
+		case LLDP8023SubtypeMDIPower:
+			if err = checkLLDPOrgSpecificLen(o, 3); err != nil {
+				return
+			}
+			info.PowerViaMDI.PortClassPSE = (o.Info[0]&LLDPMDIPowerPortClass > 0)
+			info.PowerViaMDI.PSESupported = (o.Info[0]&LLDPMDIPowerCapability > 0)
+			info.PowerViaMDI.PSEEnabled = (o.Info[0]&LLDPMDIPowerStatus > 0)
+			info.PowerViaMDI.PSEPairsAbility = (o.Info[0]&LLDPMDIPowerPairsAbility > 0)
+			info.PowerViaMDI.PSEPowerPair = uint8(o.Info[1])
+			info.PowerViaMDI.PSEClass = uint8(o.Info[2])
+			if len(o.Info) >= 7 {
+				info.PowerViaMDI.Type = LLDPPowerType((o.Info[3] & 0xc0) >> 6)
+				info.PowerViaMDI.Source = LLDPPowerSource((o.Info[3] & 0x30) >> 4)
+				if info.PowerViaMDI.Type == 1 || info.PowerViaMDI.Type == 3 {
+					info.PowerViaMDI.Source += 128 // For Stringify purposes
+				}
+				info.PowerViaMDI.Priority = LLDPPowerPriority(o.Info[3] & 0x0f)
+				info.PowerViaMDI.Requested = binary.BigEndian.Uint16(o.Info[4:6])
+				info.PowerViaMDI.Allocated = binary.BigEndian.Uint16(o.Info[6:8])
+			}
+		case LLDP8023SubtypeLinkAggregation:
+			if err = checkLLDPOrgSpecificLen(o, 5); err != nil {
+				return
+			}
+			sup := (o.Info[0]&LLDPAggregationCapability > 0)
+			en := (o.Info[0]&LLDPAggregationStatus > 0)
+			info.LinkAggregation = LLDPLinkAggregation{sup, en, binary.BigEndian.Uint32(o.Info[1:5])}
+		case LLDP8023SubtypeMTU:
+			if err = checkLLDPOrgSpecificLen(o, 2); err != nil {
+				return
+			}
+			info.MTU = binary.BigEndian.Uint16(o.Info[0:2])
+		}
+	}
+	return
+}
+
+func (l *LinkLayerDiscoveryInfo) Decode8021Qbg() (info LLDPInfo8021Qbg, err error) {
+	for _, o := range l.OrgTLVs {
+		if o.OUI != IEEEOUI8021Qbg {
+			continue
+		}
+		switch o.SubType {
+		case LLDP8021QbgEVB:
+			if err = checkLLDPOrgSpecificLen(o, 9); err != nil {
+				return
+			}
+			info.EVBSettings.Supported = getEVBCapabilities(binary.BigEndian.Uint16(o.Info[0:2]))
+			info.EVBSettings.Enabled = getEVBCapabilities(binary.BigEndian.Uint16(o.Info[2:4]))
+			info.EVBSettings.SupportedVSIs = binary.BigEndian.Uint16(o.Info[4:6])
+			info.EVBSettings.ConfiguredVSIs = binary.BigEndian.Uint16(o.Info[6:8])
+			info.EVBSettings.RTEExponent = uint8(o.Info[8])
+		}
+	}
+	return
+}
+
+func (l *LinkLayerDiscoveryInfo) DecodeMedia() (info LLDPInfoMedia, err error) {
+	for _, o := range l.OrgTLVs {
+		if o.OUI != IEEEOUIMedia {
+			continue
+		}
+		switch LLDPMediaSubtype(o.SubType) {
+		case LLDPMediaTypeCapabilities:
+			if err = checkLLDPOrgSpecificLen(o, 3); err != nil {
+				return
+			}
+			b := binary.BigEndian.Uint16(o.Info[0:2])
+			info.MediaCapabilities.Capabilities = (b & LLDPMediaCapsLLDP) > 0
+			info.MediaCapabilities.NetworkPolicy = (b & LLDPMediaCapsNetwork) > 0
+			info.MediaCapabilities.Location = (b & LLDPMediaCapsLocation) > 0
+			info.MediaCapabilities.PowerPSE = (b & LLDPMediaCapsPowerPSE) > 0
+			info.MediaCapabilities.PowerPD = (b & LLDPMediaCapsPowerPD) > 0
+			info.MediaCapabilities.Inventory = (b & LLDPMediaCapsInventory) > 0
+			info.MediaCapabilities.Class = LLDPMediaClass(o.Info[2])
+		case LLDPMediaTypeNetwork:
+			if err = checkLLDPOrgSpecificLen(o, 4); err != nil {
+				return
+			}
+			info.NetworkPolicy.ApplicationType = LLDPApplicationType(o.Info[0])
+			b := binary.BigEndian.Uint16(o.Info[1:3])
+			info.NetworkPolicy.Defined = (b & 0x8000) == 0
+			info.NetworkPolicy.Tagged = (b & 0x4000) > 0
+			info.NetworkPolicy.VLANId = (b & 0x1ffe) >> 1
+			b = binary.BigEndian.Uint16(o.Info[2:4])
+			info.NetworkPolicy.L2Priority = (b & 0x01c0) >> 6
+			info.NetworkPolicy.DSCPValue = uint8(o.Info[3] & 0x3f)
+		case LLDPMediaTypeLocation:
+			if err = checkLLDPOrgSpecificLen(o, 1); err != nil {
+				return
+			}
+			info.Location.Format = LLDPLocationFormat(o.Info[0])
+			o.Info = o.Info[1:]
+			switch info.Location.Format {
+			case LLDPLocationFormatCoordinate:
+				if err = checkLLDPOrgSpecificLen(o, 16); err != nil {
+					return
+				}
+				info.Location.Coordinate.LatitudeResolution = uint8(o.Info[0]&0xfc) >> 2
+				b := binary.BigEndian.Uint64(o.Info[0:8])
+				info.Location.Coordinate.Latitude = (b & 0x03ffffffff000000) >> 24
+				info.Location.Coordinate.LongitudeResolution = uint8(o.Info[5]&0xfc) >> 2
+				b = binary.BigEndian.Uint64(o.Info[5:13])
+				info.Location.Coordinate.Longitude = (b & 0x03ffffffff000000) >> 24
+				info.Location.Coordinate.AltitudeType = uint8((o.Info[10] & 0x30) >> 4)
+				b1 := binary.BigEndian.Uint16(o.Info[10:12])
+				info.Location.Coordinate.AltitudeResolution = (b1 & 0xfc0) >> 6
+				b2 := binary.BigEndian.Uint32(o.Info[11:15])
+				info.Location.Coordinate.Altitude = b2 & 0x3fffffff
+				info.Location.Coordinate.Datum = uint8(o.Info[15])
+			case LLDPLocationFormatAddress:
+				if err = checkLLDPOrgSpecificLen(o, 3); err != nil {
+					return
+				}
+				//ll := uint8(o.Info[0])
+				info.Location.Address.What = LLDPLocationAddressWhat(o.Info[1])
+				info.Location.Address.CountryCode = string(o.Info[2:4])
+				data := o.Info[4:]
+				for len(data) > 1 {
+					aType := LLDPLocationAddressType(data[0])
+					aLen := int(data[1])
+					if len(data) >= aLen+2 {
+						info.Location.Address.AddressLines = append(info.Location.Address.AddressLines, LLDPLocationAddressLine{aType, string(data[2 : aLen+2])})
+						data = data[aLen+2:]
+					} else {
+						break
+					}
+				}
+			case LLDPLocationFormatECS:
+				info.Location.ECS.ELIN = string(o.Info)
+			}
+		case LLDPMediaTypePower:
+			if err = checkLLDPOrgSpecificLen(o, 3); err != nil {
+				return
+			}
+			info.PowerViaMDI.Type = LLDPPowerType((o.Info[0] & 0xc0) >> 6)
+			info.PowerViaMDI.Source = LLDPPowerSource((o.Info[0] & 0x30) >> 4)
+			if info.PowerViaMDI.Type == 1 || info.PowerViaMDI.Type == 3 {
+				info.PowerViaMDI.Source += 128 // For Stringify purposes
+			}
+			info.PowerViaMDI.Priority = LLDPPowerPriority(o.Info[0] & 0x0f)
+			info.PowerViaMDI.Value = binary.BigEndian.Uint16(o.Info[1:3]) * 100 // 0 to 102.3 w, 0.1W increments
+		case LLDPMediaTypeHardware:
+			info.HardwareRevision = string(o.Info)
+		case LLDPMediaTypeFirmware:
+			info.FirmwareRevision = string(o.Info)
+		case LLDPMediaTypeSoftware:
+			info.SoftwareRevision = string(o.Info)
+		case LLDPMediaTypeSerial:
+			info.SerialNumber = string(o.Info)
+		case LLDPMediaTypeManufacturer:
+			info.Manufacturer = string(o.Info)
+		case LLDPMediaTypeModel:
+			info.Model = string(o.Info)
+		case LLDPMediaTypeAssetID:
+			info.AssetID = string(o.Info)
+		}
+	}
+	return
+}
+
+func (l *LinkLayerDiscoveryInfo) DecodeCisco2() (info LLDPInfoCisco2, err error) {
+	for _, o := range l.OrgTLVs {
+		if o.OUI != IEEEOUICisco2 {
+			continue
+		}
+		switch LLDPCisco2Subtype(o.SubType) {
+		case LLDPCisco2PowerViaMDI:
+			if err = checkLLDPOrgSpecificLen(o, 1); err != nil {
+				return
+			}
+			info.PSEFourWirePoESupported = (o.Info[0] & LLDPCiscoPSESupport) > 0
+			info.PDSparePairArchitectureShared = (o.Info[0] & LLDPCiscoArchShared) > 0
+			info.PDRequestSparePairPoEOn = (o.Info[0] & LLDPCiscoPDSparePair) > 0
+			info.PSESparePairPoEOn = (o.Info[0] & LLDPCiscoPSESparePair) > 0
+		}
+	}
+	return
+}
+
+func (l *LinkLayerDiscoveryInfo) DecodeProfinet() (info LLDPInfoProfinet, err error) {
+	for _, o := range l.OrgTLVs {
+		if o.OUI != IEEEOUIProfinet {
+			continue
+		}
+		switch LLDPProfinetSubtype(o.SubType) {
+		case LLDPProfinetPNIODelay:
+			if err = checkLLDPOrgSpecificLen(o, 20); err != nil {
+				return
+			}
+			info.PNIODelay.RXLocal = binary.BigEndian.Uint32(o.Info[0:4])
+			info.PNIODelay.RXRemote = binary.BigEndian.Uint32(o.Info[4:8])
+			info.PNIODelay.TXLocal = binary.BigEndian.Uint32(o.Info[8:12])
+			info.PNIODelay.TXRemote = binary.BigEndian.Uint32(o.Info[12:16])
+			info.PNIODelay.CableLocal = binary.BigEndian.Uint32(o.Info[16:20])
+		case LLDPProfinetPNIOPortStatus:
+			if err = checkLLDPOrgSpecificLen(o, 4); err != nil {
+				return
+			}
+			info.PNIOPortStatus.Class2 = binary.BigEndian.Uint16(o.Info[0:2])
+			info.PNIOPortStatus.Class3 = binary.BigEndian.Uint16(o.Info[2:4])
+		case LLDPProfinetPNIOMRPPortStatus:
+			if err = checkLLDPOrgSpecificLen(o, 18); err != nil {
+				return
+			}
+			info.PNIOMRPPortStatus.UUID = o.Info[0:16]
+			info.PNIOMRPPortStatus.Status = binary.BigEndian.Uint16(o.Info[16:18])
+		case LLDPProfinetPNIOChassisMAC:
+			if err = checkLLDPOrgSpecificLen(o, 6); err != nil {
+				return
+			}
+			info.ChassisMAC = o.Info[0:6]
+		case LLDPProfinetPNIOPTCPStatus:
+			if err = checkLLDPOrgSpecificLen(o, 54); err != nil {
+				return
+			}
+			info.PNIOPTCPStatus.MasterAddress = o.Info[0:6]
+			info.PNIOPTCPStatus.SubdomainUUID = o.Info[6:22]
+			info.PNIOPTCPStatus.IRDataUUID = o.Info[22:38]
+			b := binary.BigEndian.Uint32(o.Info[38:42])
+			info.PNIOPTCPStatus.PeriodValid = (b & 0x80000000) > 0
+			info.PNIOPTCPStatus.PeriodLength = b & 0x7fffffff
+			b = binary.BigEndian.Uint32(o.Info[42:46])
+			info.PNIOPTCPStatus.RedPeriodValid = (b & 0x80000000) > 0
+			info.PNIOPTCPStatus.RedPeriodBegin = b & 0x7fffffff
+			b = binary.BigEndian.Uint32(o.Info[46:50])
+			info.PNIOPTCPStatus.OrangePeriodValid = (b & 0x80000000) > 0
+			info.PNIOPTCPStatus.OrangePeriodBegin = b & 0x7fffffff
+			b = binary.BigEndian.Uint32(o.Info[50:54])
+			info.PNIOPTCPStatus.GreenPeriodValid = (b & 0x80000000) > 0
+			info.PNIOPTCPStatus.GreenPeriodBegin = b & 0x7fffffff
+		}
+	}
+	return
+}
+
+// LayerType returns gopacket.LayerTypeLinkLayerDiscoveryInfo.
+func (c *LinkLayerDiscoveryInfo) LayerType() gopacket.LayerType {
+	return LayerTypeLinkLayerDiscoveryInfo
+}
+
+func getCapabilities(v uint16) (c LLDPCapabilities) {
+	c.Other = (v&LLDPCapsOther > 0)
+	c.Repeater = (v&LLDPCapsRepeater > 0)
+	c.Bridge = (v&LLDPCapsBridge > 0)
+	c.WLANAP = (v&LLDPCapsWLANAP > 0)
+	c.Router = (v&LLDPCapsRouter > 0)
+	c.Phone = (v&LLDPCapsPhone > 0)
+	c.DocSis = (v&LLDPCapsDocSis > 0)
+	c.StationOnly = (v&LLDPCapsStationOnly > 0)
+	c.CVLAN = (v&LLDPCapsCVLAN > 0)
+	c.SVLAN = (v&LLDPCapsSVLAN > 0)
+	c.TMPR = (v&LLDPCapsTmpr > 0)
+	return
+}
+
+func getEVBCapabilities(v uint16) (c LLDPEVBCapabilities) {
+	c.StandardBridging = (v & LLDPEVBCapsSTD) > 0
+	c.StandardBridging = (v & LLDPEVBCapsSTD) > 0
+	c.ReflectiveRelay = (v & LLDPEVBCapsRR) > 0
+	c.RetransmissionTimerExponent = (v & LLDPEVBCapsRTE) > 0
+	c.EdgeControlProtocol = (v & LLDPEVBCapsECP) > 0
+	c.VSIDiscoveryProtocol = (v & LLDPEVBCapsVDP) > 0
+	return
+}
+
+func (t LLDPTLVType) String() (s string) {
+	switch t {
+	case LLDPTLVEnd:
+		s = "TLV End"
+	case LLDPTLVChassisID:
+		s = "Chassis ID"
+	case LLDPTLVPortID:
+		s = "Port ID"
+	case LLDPTLVTTL:
+		s = "TTL"
+	case LLDPTLVPortDescription:
+		s = "Port Description"
+	case LLDPTLVSysName:
+		s = "System Name"
+	case LLDPTLVSysDescription:
+		s = "System Description"
+	case LLDPTLVSysCapabilities:
+		s = "System Capabilities"
+	case LLDPTLVMgmtAddress:
+		s = "Management Address"
+	case LLDPTLVOrgSpecific:
+		s = "Organisation Specific"
+	default:
+		s = "Unknown"
+	}
+	return
+}
+
+func (t LLDPChassisIDSubType) String() (s string) {
+	switch t {
+	case LLDPChassisIDSubTypeReserved:
+		s = "Reserved"
+	case LLDPChassisIDSubTypeChassisComp:
+		s = "Chassis Component"
+	case LLDPChassisIDSubtypeIfaceAlias:
+		s = "Interface Alias"
+	case LLDPChassisIDSubTypePortComp:
+		s = "Port Component"
+	case LLDPChassisIDSubTypeMACAddr:
+		s = "MAC Address"
+	case LLDPChassisIDSubTypeNetworkAddr:
+		s = "Network Address"
+	case LLDPChassisIDSubtypeIfaceName:
+		s = "Interface Name"
+	case LLDPChassisIDSubTypeLocal:
+		s = "Local"
+	default:
+		s = "Unknown"
+	}
+	return
+}
+
+func (t LLDPPortIDSubType) String() (s string) {
+	switch t {
+	case LLDPPortIDSubtypeReserved:
+		s = "Reserved"
+	case LLDPPortIDSubtypeIfaceAlias:
+		s = "Interface Alias"
+	case LLDPPortIDSubtypePortComp:
+		s = "Port Component"
+	case LLDPPortIDSubtypeMACAddr:
+		s = "MAC Address"
+	case LLDPPortIDSubtypeNetworkAddr:
+		s = "Network Address"
+	case LLDPPortIDSubtypeIfaceName:
+		s = "Interface Name"
+	case LLDPPortIDSubtypeAgentCircuitID:
+		s = "Agent Circuit ID"
+	case LLDPPortIDSubtypeLocal:
+		s = "Local"
+	default:
+		s = "Unknown"
+	}
+	return
+}
+
+func (t IANAAddressFamily) String() (s string) {
+	switch t {
+	case IANAAddressFamilyReserved:
+		s = "Reserved"
+	case IANAAddressFamilyIPV4:
+		s = "IPv4"
+	case IANAAddressFamilyIPV6:
+		s = "IPv6"
+	case IANAAddressFamilyNSAP:
+		s = "NSAP"
+	case IANAAddressFamilyHDLC:
+		s = "HDLC"
+	case IANAAddressFamilyBBN1822:
+		s = "BBN 1822"
+	case IANAAddressFamily802:
+		s = "802 media plus Ethernet 'canonical format'"
+	case IANAAddressFamilyE163:
+		s = "E.163"
+	case IANAAddressFamilyE164:
+		s = "E.164 (SMDS, Frame Relay, ATM)"
+	case IANAAddressFamilyF69:
+		s = "F.69 (Telex)"
+	case IANAAddressFamilyX121:
+		s = "X.121, X.25, Frame Relay"
+	case IANAAddressFamilyIPX:
+		s = "IPX"
+	case IANAAddressFamilyAtalk:
+		s = "Appletalk"
+	case IANAAddressFamilyDecnet:
+		s = "Decnet IV"
+	case IANAAddressFamilyBanyan:
+		s = "Banyan Vines"
+	case IANAAddressFamilyE164NSAP:
+		s = "E.164 with NSAP format subaddress"
+	case IANAAddressFamilyDNS:
+		s = "DNS"
+	case IANAAddressFamilyDistname:
+		s = "Distinguished Name"
+	case IANAAddressFamilyASNumber:
+		s = "AS Number"
+	case IANAAddressFamilyXTPIPV4:
+		s = "XTP over IP version 4"
+	case IANAAddressFamilyXTPIPV6:
+		s = "XTP over IP version 6"
+	case IANAAddressFamilyXTP:
+		s = "XTP native mode XTP"
+	case IANAAddressFamilyFcWWPN:
+		s = "Fibre Channel World-Wide Port Name"
+	case IANAAddressFamilyFcWWNN:
+		s = "Fibre Channel World-Wide Node Name"
+	case IANAAddressFamilyGWID:
+		s = "GWID"
+	case IANAAddressFamilyL2VPN:
+		s = "AFI for Layer 2 VPN"
+	default:
+		s = "Unknown"
+	}
+	return
+}
+
+func (t LLDPInterfaceSubtype) String() (s string) {
+	switch t {
+	case LLDPInterfaceSubtypeUnknown:
+		s = "Unknown"
+	case LLDPInterfaceSubtypeifIndex:
+		s = "IfIndex"
+	case LLDPInterfaceSubtypeSysPort:
+		s = "System Port Number"
+	default:
+		s = "Unknown"
+	}
+	return
+}
+
+func (t LLDPPowerType) String() (s string) {
+	switch t {
+	case 0:
+		s = "Type 2 PSE Device"
+	case 1:
+		s = "Type 2 PD Device"
+	case 2:
+		s = "Type 1 PSE Device"
+	case 3:
+		s = "Type 1 PD Device"
+	default:
+		s = "Unknown"
+	}
+	return
+}
+
+func (t LLDPPowerSource) String() (s string) {
+	switch t {
+	// PD Device
+	case 0:
+		s = "Unknown"
+	case 1:
+		s = "PSE"
+	case 2:
+		s = "Local"
+	case 3:
+		s = "PSE and Local"
+	// PSE Device  (Actual value  + 128)
+	case 128:
+		s = "Unknown"
+	case 129:
+		s = "Primary Power Source"
+	case 130:
+		s = "Backup Power Source"
+	default:
+		s = "Unknown"
+	}
+	return
+}
+
+func (t LLDPPowerPriority) String() (s string) {
+	switch t {
+	case 0:
+		s = "Unknown"
+	case 1:
+		s = "Critical"
+	case 2:
+		s = "High"
+	case 3:
+		s = "Low"
+	default:
+		s = "Unknown"
+	}
+	return
+}
+
+func (t LLDPMediaSubtype) String() (s string) {
+	switch t {
+	case LLDPMediaTypeCapabilities:
+		s = "Media Capabilities "
+	case LLDPMediaTypeNetwork:
+		s = "Network Policy"
+	case LLDPMediaTypeLocation:
+		s = "Location Identification"
+	case LLDPMediaTypePower:
+		s = "Extended Power-via-MDI"
+	case LLDPMediaTypeHardware:
+		s = "Hardware Revision"
+	case LLDPMediaTypeFirmware:
+		s = "Firmware Revision"
+	case LLDPMediaTypeSoftware:
+		s = "Software Revision"
+	case LLDPMediaTypeSerial:
+		s = "Serial Number"
+	case LLDPMediaTypeManufacturer:
+		s = "Manufacturer"
+	case LLDPMediaTypeModel:
+		s = "Model"
+	case LLDPMediaTypeAssetID:
+		s = "Asset ID"
+	default:
+		s = "Unknown"
+	}
+	return
+}
+
+func (t LLDPMediaClass) String() (s string) {
+	switch t {
+	case LLDPMediaClassUndefined:
+		s = "Undefined"
+	case LLDPMediaClassEndpointI:
+		s = "Endpoint Class I"
+	case LLDPMediaClassEndpointII:
+		s = "Endpoint Class II"
+	case LLDPMediaClassEndpointIII:
+		s = "Endpoint Class III"
+	case LLDPMediaClassNetwork:
+		s = "Network connectivity "
+	default:
+		s = "Unknown"
+	}
+	return
+}
+
+func (t LLDPApplicationType) String() (s string) {
+	switch t {
+	case LLDPAppTypeReserved:
+		s = "Reserved"
+	case LLDPAppTypeVoice:
+		s = "Voice"
+	case LLDPappTypeVoiceSignaling:
+		s = "Voice Signaling"
+	case LLDPappTypeGuestVoice:
+		s = "Guest Voice"
+	case LLDPappTypeGuestVoiceSignaling:
+		s = "Guest Voice Signaling"
+	case LLDPappTypeSoftphoneVoice:
+		s = "Softphone Voice"
+	case LLDPappTypeVideoConferencing:
+		s = "Video Conferencing"
+	case LLDPappTypeStreamingVideo:
+		s = "Streaming Video"
+	case LLDPappTypeVideoSignaling:
+		s = "Video Signaling"
+	default:
+		s = "Unknown"
+	}
+	return
+}
+
+func (t LLDPLocationFormat) String() (s string) {
+	switch t {
+	case LLDPLocationFormatInvalid:
+		s = "Invalid"
+	case LLDPLocationFormatCoordinate:
+		s = "Coordinate-based LCI"
+	case LLDPLocationFormatAddress:
+		s = "Address-based LCO"
+	case LLDPLocationFormatECS:
+		s = "ECS ELIN"
+	default:
+		s = "Unknown"
+	}
+	return
+}
+
+func (t LLDPLocationAddressType) String() (s string) {
+	switch t {
+	case LLDPLocationAddressTypeLanguage:
+		s = "Language"
+	case LLDPLocationAddressTypeNational:
+		s = "National subdivisions (province, state, etc)"
+	case LLDPLocationAddressTypeCounty:
+		s = "County, parish, district"
+	case LLDPLocationAddressTypeCity:
+		s = "City, township"
+	case LLDPLocationAddressTypeCityDivision:
+		s = "City division, borough, ward"
+	case LLDPLocationAddressTypeNeighborhood:
+		s = "Neighborhood, block"
+	case LLDPLocationAddressTypeStreet:
+		s = "Street"
+	case LLDPLocationAddressTypeLeadingStreet:
+		s = "Leading street direction"
+	case LLDPLocationAddressTypeTrailingStreet:
+		s = "Trailing street suffix"
+	case LLDPLocationAddressTypeStreetSuffix:
+		s = "Street suffix"
+	case LLDPLocationAddressTypeHouseNum:
+		s = "House number"
+	case LLDPLocationAddressTypeHouseSuffix:
+		s = "House number suffix"
+	case LLDPLocationAddressTypeLandmark:
+		s = "Landmark or vanity address"
+	case LLDPLocationAddressTypeAdditional:
+		s = "Additional location information"
+	case LLDPLocationAddressTypeName:
+		s = "Name"
+	case LLDPLocationAddressTypePostal:
+		s = "Postal/ZIP code"
+	case LLDPLocationAddressTypeBuilding:
+		s = "Building"
+	case LLDPLocationAddressTypeUnit:
+		s = "Unit"
+	case LLDPLocationAddressTypeFloor:
+		s = "Floor"
+	case LLDPLocationAddressTypeRoom:
+		s = "Room number"
+	case LLDPLocationAddressTypePlace:
+		s = "Place type"
+	case LLDPLocationAddressTypeScript:
+		s = "Script"
+	default:
+		s = "Unknown"
+	}
+	return
+}
+
+func checkLLDPTLVLen(v LinkLayerDiscoveryValue, l int) (err error) {
+	if len(v.Value) < l {
+		err = fmt.Errorf("Invalid TLV %v length %d (wanted mimimum %v", v.Type, len(v.Value), l)
+	}
+	return
+}
+
+func checkLLDPOrgSpecificLen(o LLDPOrgSpecificTLV, l int) (err error) {
+	if len(o.Info) < l {
+		err = fmt.Errorf("Invalid Org Specific TLV %v length %d (wanted minimum %v)", o.SubType, len(o.Info), l)
+	}
+	return
+}