NameComponentType » History » Revision 21
Revision 20 (Alex Afanasyev, 10/26/2021 02:32 PM) → Revision 21/29 (Alex Afanasyev, 10/26/2021 02:35 PM)
# 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](https://named-data.net/doc/NDN-packet-spec/current/name.html) ImplicitSha256DigestComponent | 1 (0x01) | 32OCTET | Implicit SHA-256 digest component | `sha256digest=<hex>` | [NDN packet spec](https://named-data.net/doc/NDN-packet-spec/current/name.html) ParametersSha256DigestComponent | 2 (0x02) | 32OCTET | SHA-256 digest of Interest Parameters | `params-sha256=<hex>` | [NDN packet spec](https://named-data.net/doc/NDN-packet-spec/current/name.html) GenericNameComponent | 8 (0x08) | *OCTET | Generic name component | "`8=`" prefix omitted | [NDN packet spec](https://named-data.net/doc/NDN-packet-spec/current/name.html) KeywordNameComponent | 48 (0x30) | *OCTET | Well-known keyword | (not defined) | SegmentNameComponent | 50 (0x32) | NonNegativeInteger | Segment number | `seg=<dec>` | [NDN naming conventions](https://named-data.net/publications/techreports/ndn-tr-22-2-ndn-memo-naming-conventions/) ByteOffsetNameComponent | 52 (0x34) | NonNegativeInteger | Byte offset | `off=<dec>` | [NDN naming conventions](https://named-data.net/publications/techreports/ndn-tr-22-2-ndn-memo-naming-conventions/) VersionNameComponent | 54 (0x36) | NonNegativeInteger | Version number | `v=<dec>` | [NDN naming conventions](https://named-data.net/publications/techreports/ndn-tr-22-2-ndn-memo-naming-conventions/) TimestampNameComponent | 56 (0x38) | NonNegativeInteger | Unix timestamp in microseconds | `t=<dec>` | [NDN naming conventions](https://named-data.net/publications/techreports/ndn-tr-22-2-ndn-memo-naming-conventions/) SequenceNumNameComponent | 58 (0x3a) | NonNegativeInteger | Sequence number | `seq=<dec>` | [NDN naming conventions](https://named-data.net/publications/techreports/ndn-tr-22-2-ndn-memo-naming-conventions/) ## Reserved ranges The reserved ranges are superset of TLV code reservations of the [NDN packet specification](https://named-data.net/doc/NDN-packet-spec/current/types.html#tlv-type-number-reservations) with the following additions: Type (dec) | Description ------------|---------------------------------------------------------------------------------------- [128, 252] | For future assignment (1-byte encoding, application range in NDN packet spec) >32767 | For future assignment (3-byte or 5-byte encoding, application range in NDN packet spec) ------------|--------------------------------------- 65536+ | Invalid values (5+-byte encoding) ## References https://named-data.net/doc/NDN-packet-spec/current/name.html