NameComponentType » History » Version 27
Davide Pesavento, 10/29/2021 03:48 PM
| 1 | 1 | Alex Afanasyev | # Name Component Type Assignment |
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| 2 | |||
| 3 | 17 | Davide Pesavento | This document lists the assigned Name Component types as well as the reserves ranges of types for experimentation purposes. |
| 4 | 2 | Alex Afanasyev | |
| 5 | ## Assigned types |
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| 6 | |||
| 7 | 16 | Davide Pesavento | Component Type | TLV-TYPE | TLV-VALUE Format | Description | Alternate URI Format | Reference |
| 8 | -------------------------------------|--------------|--------------------|---------------------------------------|-----------------------|---------- |
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| 9 | 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) |
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| 10 | 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) |
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| 11 | 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) |
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| 12 | GenericNameComponent | 8 (0x08) | *OCTET | Generic name component | "`8=`" prefix omitted | [NDN packet spec](https://named-data.net/doc/NDN-packet-spec/current/name.html) |
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| 13 | 20 | Alex Afanasyev | KeywordNameComponent | 48 (0x30) | *OCTET | Well-known keyword | (not defined) | |
| 14 | 22 | Alex Afanasyev | SegmentNameComponent | 50 (0x32) | NonNegativeInteger | Segment number | `seg=<dec>` | [NDN naming conventions](https://named-data.net/publications/techreports/ndn-tr-22-3-ndn-memo-naming-conventions/) |
| 15 | ByteOffsetNameComponent | 52 (0x34) | NonNegativeInteger | Byte offset | `off=<dec>` | [NDN naming conventions](https://named-data.net/publications/techreports/ndn-tr-22-3-ndn-memo-naming-conventions/) |
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| 16 | VersionNameComponent | 54 (0x36) | NonNegativeInteger | Version number | `v=<dec>` | [NDN naming conventions](https://named-data.net/publications/techreports/ndn-tr-22-3-ndn-memo-naming-conventions/) |
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| 17 | TimestampNameComponent | 56 (0x38) | NonNegativeInteger | Unix timestamp in microseconds | `t=<dec>` | [NDN naming conventions](https://named-data.net/publications/techreports/ndn-tr-22-3-ndn-memo-naming-conventions/) |
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| 18 | SequenceNumNameComponent | 58 (0x3a) | NonNegativeInteger | Sequence number | `seq=<dec>` | [NDN naming conventions](https://named-data.net/publications/techreports/ndn-tr-22-3-ndn-memo-naming-conventions/) |
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| 19 | 19 | Alex Afanasyev | |
| 20 | 9 | Davide Pesavento | ## Reserved ranges |
| 21 | 10 | Junxiao Shi | |
| 22 | 24 | Davide Pesavento | The reserved ranges are a superset of the TLV-TYPE 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: |
| 23 | 9 | Davide Pesavento | |
| 24 | 26 | Davide Pesavento | Type (dec) | Description |
| 25 | ---------------|---------------------------------------------------------------------------------------- |
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| 26 | [128, 252] | For future assignment (1-byte encoding, application range in NDN packet spec) |
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| 27 | [32768, 65535] | For future assignment (3-byte or 5-byte encoding, application range in NDN packet spec) |
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| 28 | >65535 | Invalid values (5-byte encoding) |
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| 29 | 17 | Davide Pesavento | |
| 30 | ## References |
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| 31 | |||
| 32 | https://named-data.net/doc/NDN-packet-spec/current/name.html |
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| 33 | 27 | Davide Pesavento | https://named-data.net/doc/NDN-packet-spec/current/types.html |