TLV Type Registry

Assigned numbers

Type

Assigned number (decimal)

Assigned number (hexadecimal)

Packet types

Interest

5

0x05

Data

6

0x06

Common fields

Name

7

0x07

Name components

GenericNameComponent

8

0x08

ImplicitSha256DigestComponent

1

0x01

ParametersSha256DigestComponent

2

0x02

KeywordNameComponent

32 (non-critical)

0x20

SegmentNameComponent

50 (non-critical)

0x32

ByteOffsetNameComponent

52 (non-critical)

0x34

VersionNameComponent

54 (non-critical)

0x36

TimestampNameComponent

56 (non-critical)

0x38

SequenceNumNameComponent

58 (non-critical)

0x3a

Interest packet

CanBePrefix

33

0x21

MustBeFresh

18

0x12

ForwardingHint

30

0x1e

Nonce

10

0x0a

InterestLifetime

12

0x0c

HopLimit

34 (non-critical)

0x22

ApplicationParameters

36 (non-critical)

0x24

InterestSignatureInfo

44 (non-critical)

0x2c

InterestSignatureValue

46 (non-critical)

0x2e

Data packet

MetaInfo

20

0x14

Content

21

0x15

SignatureInfo

22

0x16

SignatureValue

23

0x17

MetaInfo

ContentType

24

0x18

FreshnessPeriod

25

0x19

FinalBlockId

26

0x1a

Signature

SignatureType

27

0x1b

KeyLocator

28

0x1c

KeyDigest

29

0x1d

SignatureNonce

38 (non-critical)

0x26

SignatureTime

40 (non-critical)

0x28

SignatureSeqNum

42 (non-critical)

0x2a

Certificate

ValidityPeriod

253

0xfd

NotBefore

254

0xfe

NotAfter

255

0xff

AdditionalDescription

258 (non-critical)

0x0102

DescriptionEntry

512

0x0200

DescriptionKey

513

0x0201

DescriptionValue

514

0x0202

Note

The ABNF grammar of this specification denotes the TLV-TYPE of element X as X-TYPE. For example, INTEREST-TYPE means %x05, the TLV-TYPE of Interest encoded in VAR-NUMBER-1 format.

Reserved ranges

Number range

Designation

9

Reserved, formerly Selectors

11

Reserved, formerly Scope

13

Reserved, formerly MinSuffixComponents

14

Reserved, formerly MaxSuffixComponents

15

Reserved, formerly PublisherPublicKeyLocator

16

Reserved, formerly Exclude

17

Reserved, formerly ChildSelector

19

Reserved, formerly Any

31

Reserved, formerly Delegation

126

Reserved, TLV element must be ignored during processing

[80, 100]

Reserved for assignments related to local-link data processing, e.g., NDNLP (1-byte encoding)

all other numbers in [1, 127]

Reserved for future assignments (1-byte encoding)

[128, 252]

For application use (1-byte encoding)

[800, 1000]

Reserved for assignments related to local-link data processing, e.g., NDNLP (3-byte encoding)

all other numbers in [253, 32767]

Reserved for future assignments (3-byte encoding)

>32767

For application use (3-byte or 5-byte encoding)