RFC 8960, "A YANG Data Model for MPLS Base", December 2020

Errata ID: 7944
Status: Reported
Type: Technical
Publication Format(s) : TEXT
Reported By: Erik Kline
Date Reported: 2024-05-19

Section 2.5 says:

  grouping nhlfe-single-contents {
    description
      "A grouping that describes a single Next Hop Label Forwarding
       Entry (NHLFE) and its associated parameters as described in
       the MPLS architecture.  This grouping is specific to the case
       when a single next hop is associated with the route.";
    uses rt-types:mpls-label-stack;
  }

It should say:

  grouping nhlfe-single-contents {
    description
      "A grouping that describes a single Next Hop Label Forwarding
       Entry (NHLFE) and its associated parameters as described in
       the MPLS architecture.  This grouping is specific to the case
       when a single next hop is associated with the route.";
    <some reference to an mpls-operations-type>
    uses rt-types:mpls-label-stack;
  }

Notes:

Section 2.2 states that the NHLFE contains the packet's next hop and "[t]he operation to perform on the packet's label stack."

Section 2.5 defines an mpls-operations-type typedef, but then it is never referenced by anything else in the YANG module.

I *think* it should be associated with nhlfe-single-contents, alongside the rt-types:mpls-label-stack used there. My YANG skills are too poor to craft any plausibly correct syntax, though.

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