MPLS Network Actions

Created

  • 2026-03-05

Last Updated

  • 2026-08-26

Available Formats


Network Action Flags Without Ancillary Data

Reference

  • RFC 9994: MPLS Network Action (MNA) Sub-Stack Specification Including In-Stack Network Actions and Data
Range Registration Procedures
0-14 IETF Review
15-16 Experimental Use
17-19 Private Use
20-439 IETF Review
Bit Position Description Reference
No registrations at this time.

Network Action Opcodes

Reference

  • RFC 9994: MPLS Network Action (MNA) Sub-Stack Specification Including In-Stack Network Actions and Data
  • RFC-ietf-mpls-mna-ps-hdr-19: MPLS Network Action (MNA) Post-Stack Header Specification

Available Formats

Range Registration Procedures
1-110 IETF Review
111-114 Experimental Use
115-126 Private Use
127 IETF Review
Opcode Description Applicability Reference
0 Reserved Not Applicable RFC 9994
1 Flag-Based Network Action Indicators without AD In-Stack Only RFC 9994
2 No operation Opcode In-Stack and Post-Stack RFC 9994
3 13-bit NRP Selector In-Stack Only RFC-ietf-mpls-mna-nrp-selector-07
4 20-bit NRP Selector In-Stack Only RFC-ietf-mpls-mna-nrp-selector-07
5 20-bit Entropy and NRP Selector In-Stack Only RFC-ietf-mpls-mna-nrp-selector-07
6 Post-Stack MPLS Header Start Offset In-Stack Only RFC-ietf-mpls-mna-ps-hdr-19
7 Post-Stack MPLS Header End Offset In-Stack Only RFC-ietf-mpls-mna-ps-hdr-19
8-110 Unassigned In-Stack and Post-Stack
111-114 Reserved for Experimental Use In-Stack and Post-Stack RFC 9994
115-126 Reserved for Private Use In-Stack and Post-Stack RFC 9994
127 Opcode Range Extension Beyond 127 In-Stack and Post-Stack RFC 9994

Post-Stack MPLS Header Types

Reference

Available Formats

Range Registration Procedures
1-65520 IETF Review
65521-65524 Experimental Use
65525-65535 Private Use
Type Description Reference
0 Reserved RFC-ietf-mpls-mna-ps-hdr-19
1 MNA Post-Stack Header RFC-ietf-mpls-mna-ps-hdr-19
2-65520 Unassigned
65521-65524 Reserved for Experimental Use RFC-ietf-mpls-mna-ps-hdr-19
65525-65535 Reserved for Private Use RFC-ietf-mpls-mna-ps-hdr-19