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                                                       Network Service Header (NSH) Parameters

Created
        2017-11-08

Last Updated
        2023-11-21

Available Formats
        [IMG]
        XML [IMG]
        HTML [IMG]
        TXT

Registries Included Below

  • NSH Base Header Bits
  • NSH Version
  • NSH MD Types
  • NSH MD Class
  • NSH IETF-Assigned Optional Variable-Length Metadata Types
  • NSH Next Protocol
  • Forwarding Context Types
  • Flow ID Context Types

NSH Base Header Bits

Registration Procedure(s)

             Standards Action


Reference
        [RFC 8300]

Available Formats
        [IMG]
        CSV

 Bit  Description Reference
2     O (OAM) bit [RFC 8300]
3     Unassigned
16-19 Unassigned

NSH Version

Registration Procedure(s)

             Standards Action


Reference
        [RFC 8300]

Available Formats
        [IMG]
        CSV

Version            Description            Reference
00b     Protocol as defined by [RFC 8300] [RFC 8300]
01b     Reserved                          [RFC 8300]
10b     Unassigned
11b     Unassigned

NSH MD Types

Registration Procedure(s)

             IETF Review


Reference
        [RFC 8300]

Available Formats
        [IMG]
        CSV

MD Type   Description   Reference
0x0     Reserved        [RFC 8300]
0x1     NSH MD Type 1   [RFC 8300]
0x2     NSH MD Type 2   [RFC 8300]
0x3-0xE Unassigned
0xF     Experimentation [RFC 8300]

NSH MD Class

Expert(s)

             Carlos Pignataro, Joel Halpern, Jim Guichard


Reference
        [RFC 8300]

Available Formats
        [IMG]
        CSV

    Range     Registration Procedures
0x0000-0x01FF IETF Review
0x0200-0xFFF5 Expert Review

    Value              Meaning                            Reference                   Change Controller
0x0000        IETF Base NSH MD Class    [RFC 8300]
0x0001-0x01FF Unassigned
0x0200        BBF Specific NSH Metadata [https://www.broadband-forum.org/assignments] [Broadband_Forum]
0x0201-0xFFF5 Unassigned
0xFFF6-0xFFFE Experimental              [RFC 8300]
0xFFFF        Reserved                  [RFC 8300]

NSH IETF-Assigned Optional Variable-Length Metadata Types

Registration Procedure(s)

             Standards Action


Reference
        [RFC 8300]

Available Formats
        [IMG]
        CSV

  Value             Description            Reference
0x00      Subscriber Identifier            [RFC 8979]
0x01      Performance Policy Identifier    [RFC 8979]
0x02      MAC and Encrypted Metadata #1    [RFC 9145]
0x03      MAC and Encrypted Metadata #2    [RFC 9145]
0x04      Forwarding Context               [RFC 9263]
0x05      Tenant ID                        [RFC 9263]
0x06      Ingress Network Node ID          [RFC 9263]
0x07      Ingress Network Interface        [RFC 9263]
0x08      Flow ID                          [RFC 9263]
0x09      Source and/or Destination Groups [RFC 9263]
0x0A      Policy ID                        [RFC 9263]
0x0B-0xFF Unassigned

NSH Next Protocol

Registration Procedure(s)

             Expert Review


Expert(s)

             Carlos Pignataro, Joel Halpern, Jim Guichard


Reference
        [RFC 8300]

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
        [IMG]
        CSV

Next Protocol              Description               Reference
0x00          None                                   [RFC 8393]
0x01          IPv4                                   [RFC 8300]
0x02          IPv6                                   [RFC 8300]
0x03          Ethernet                               [RFC 8300]
0x04          NSH                                    [RFC 8300]
0x05          MPLS                                   [RFC 8300]
0x06          IOAM (Next protocol is an IOAM header) [RFC 9452]
0x07          SFC Active OAM                         [RFC 9516]
0x08-0xFD     Unassigned
0xFE          Experiment 1                           [RFC 8300]
0xFF          Experiment 2                           [RFC 8300]

Forwarding Context Types

Registration Procedure(s)

             IETF Review


Reference
        [RFC 9263]

Available Formats
        [IMG]
        CSV

 Value      Forwarding Context Header Types     Reference
0x0     12-bit VLAN identifier                  [RFC 9263]
0x1     24-bit double tagging identifiers       [RFC 9263]
0x2     20-bit MPLS VPN label                   [RFC 9263]
0x3     24-bit virtual network identifier (VNI) [RFC 9263]
0x4     32-bit Session ID                       [RFC 9263]
0x5-0xE Unassigned
0xF     Reserved                                [RFC 9263]

Flow ID Context Types

Registration Procedure(s)

             IETF Review


Reference
        [RFC 9263]

Available Formats
        [IMG]
        CSV

 Value        Flow ID Context Header Types       Reference
0x0     20-bit IPv6 Flow Label                   [RFC 9263]
0x1     20-bit entropy label in the MPLS network [RFC 9263]
0x2-0xE Unassigned
0xF     Reserved                                 [RFC 9263]

                                                                 Contact Information

       ID              Name                 Contact URI           Last Updated
[Broadband_Forum] Broadband Forum mailto:help&broadband-forum.org 2019-12-23

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