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Alex Afanasyev, 10/26/2021 02:00 PM

Name Component Type Assignment¶

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

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	33 (0x21)	NonNegativeInteger	Segment number	`seg=<dec>`	NDN naming conventions
ByteOffsetNameComponent	34 (0x22)	NonNegativeInteger	Byte offset	`off=<dec>`	NDN naming conventions
VersionNameComponent	35 (0x23)	NonNegativeInteger	Version number	`v=<dec>`	NDN naming conventions
TimestampNameComponent	36 (0x24)	NonNegativeInteger	Unix timestamp in microseconds	`t=<dec>`	NDN naming conventions
SequenceNumNameComponent	37 (0x25)	NonNegativeInteger	Sequence number	`seq=<dec>`	NDN naming conventions

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

TBD

Type (dec)	Description
3-7, 9-31	Reserved
38-200	Unassigned (1-byte encoding)
201-252	For experimental use (1-byte encoding)
253-3200	Unassigned (3-byte encoding)
3201-65535	For experimental use (3-byte encoding)
65536+	Invalid values (5+-byte encoding)

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