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Internet Assigned Numbers Authority

Network Service Header (NSH) Parameters

Created
2017-11-08
Last Updated
2023-11-21
Available Formats

XML
HTML
Plain text

Registries Included Below

NSH Base Header Bits

Registration Procedure(s)
Standards Action
Reference
[RFC8300]
Available Formats

CSV
BitDescriptionReference
2O (OAM) bit[RFC8300]
3Unassigned
16-19Unassigned

NSH Version

Registration Procedure(s)
Standards Action
Reference
[RFC8300]
Available Formats

CSV
VersionDescriptionReference
00bProtocol as defined by [RFC8300][RFC8300]
01bReserved[RFC8300]
10bUnassigned
11bUnassigned

NSH MD Types

Registration Procedure(s)
IETF Review
Reference
[RFC8300]
Available Formats

CSV
MD TypeDescriptionReference
0x0Reserved[RFC8300]
0x1NSH MD Type 1[RFC8300]
0x2NSH MD Type 2[RFC8300]
0x3-0xEUnassigned
0xFExperimentation[RFC8300]

NSH MD Class

Expert(s)
Carlos Pignataro, Joel Halpern, Jim Guichard
Reference
[RFC8300]
Available Formats

CSV
RangeRegistration Procedures
0x0000-0x01FFIETF Review
0x0200-0xFFF5Expert Review
ValueMeaningReferenceChange Controller
0x0000IETF Base NSH MD Class[RFC8300]
0x0001-0x01FFUnassigned
0x0200BBF Specific NSH Metadata[https://www.broadband-forum.org/assignments][Broadband_Forum]
0x0201-0xFFF5Unassigned
0xFFF6-0xFFFEExperimental[RFC8300]
0xFFFFReserved[RFC8300]

NSH IETF-Assigned Optional Variable-Length Metadata Types

Registration Procedure(s)
Standards Action
Reference
[RFC8300]
Available Formats

CSV
ValueDescriptionReference
0x00Subscriber Identifier[RFC8979]
0x01Performance Policy Identifier[RFC8979]
0x02MAC and Encrypted Metadata #1[RFC9145]
0x03MAC and Encrypted Metadata #2[RFC9145]
0x04Forwarding Context[RFC9263]
0x05Tenant ID[RFC9263]
0x06Ingress Network Node ID[RFC9263]
0x07Ingress Network Interface[RFC9263]
0x08Flow ID[RFC9263]
0x09Source and/or Destination Groups[RFC9263]
0x0APolicy ID[RFC9263]
0x0B-0xFFUnassigned

NSH Next Protocol

Registration Procedure(s)
Expert Review
Expert(s)
Carlos Pignataro, Joel Halpern, Jim Guichard
Reference
[RFC8300]
Note
If the actual assignment of the Next Protocol field allocation reaches half of the range (that is, when there are 128 unassigned values), IANA needs to alert the IESG. At that point, a new more strict allocation policy SHOULD be considered.
Available Formats

CSV
Next ProtocolDescriptionReference
0x00None[RFC8393]
0x01IPv4[RFC8300]
0x02IPv6[RFC8300]
0x03Ethernet[RFC8300]
0x04NSH[RFC8300]
0x05MPLS[RFC8300]
0x06IOAM (Next protocol is an IOAM header)[RFC9452]
0x07SFC Active OAM[RFC9516]
0x08-0xFDUnassigned
0xFEExperiment 1[RFC8300]
0xFFExperiment 2[RFC8300]

Forwarding Context Types

Registration Procedure(s)
IETF Review
Reference
[RFC9263]
Available Formats

CSV
ValueForwarding Context Header TypesReference
0x012-bit VLAN identifier[RFC9263]
0x124-bit double tagging identifiers[RFC9263]
0x220-bit MPLS VPN label[RFC9263]
0x324-bit virtual network identifier (VNI)[RFC9263]
0x432-bit Session ID[RFC9263]
0x5-0xEUnassigned
0xFReserved[RFC9263]

Flow ID Context Types

Registration Procedure(s)
IETF Review
Reference
[RFC9263]
Available Formats

CSV
ValueFlow ID Context Header TypesReference
0x020-bit IPv6 Flow Label[RFC9263]
0x120-bit entropy label in the MPLS network[RFC9263]
0x2-0xEUnassigned
0xFReserved[RFC9263]

Contact Information

IDNameContact URILast Updated
[Broadband_Forum]Broadband Forummailto:help&broadband-forum.org2019-12-23
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