Name Component Type Assignment¶

This document lists the assigned Name Component types as well as the reserves ranges of types for experimentation purposes.

Assigned types¶

Component Type	TLV-TYPE	TLV-VALUE Format	Description	Alternate URI Format	Reference
Invalid	0 (0x00)	N/A	Invalid name component type	N/A	NDN packet spec
ImplicitSha256DigestComponent	1 (0x01)	32OCTET	Implicit SHA-256 digest component	`sha256digest=<hex>`	NDN packet spec
ParametersSha256DigestComponent	2 (0x02)	32OCTET	SHA-256 digest of Interest Parameters	`params-sha256=<hex>`	NDN packet spec
GenericNameComponent	8 (0x08)	*OCTET	Generic name component	"`8=`" prefix omitted	NDN packet spec
KeywordNameComponent	32 (0x20)	*OCTET	Well-known keyword	(not defined)
SegmentNameComponent	50 (0x32)	NonNegativeInteger	Segment number	`seg=<dec>`	NDN naming conventions
ByteOffsetNameComponent	52 (0x34)	NonNegativeInteger	Byte offset	`off=<dec>`	NDN naming conventions
VersionNameComponent	54 (0x36)	NonNegativeInteger	Version number	`v=<dec>`	NDN naming conventions
TimestampNameComponent	56 (0x38)	NonNegativeInteger	Unix timestamp in microseconds	`t=<dec>`	NDN naming conventions
SequenceNumNameComponent	58 (0x3a)	NonNegativeInteger	Sequence number	`seq=<dec>`	NDN naming conventions

The reserved ranges are a superset of the TLV-TYPE reservations of the NDN packet specification with the following additions:

Type (dec)	Description
[128, 252]	For future assignment (1-byte encoding, application range in NDN packet spec)
[32768, 65535]	For future assignment (3-byte or 5-byte encoding, application range in NDN packet spec)
>65535	Invalid values (5-byte encoding)

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