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RFC 8542, "A YANG Data Model for Fabric Topology in Data-Center Networks", March 2019

Source of RFC: i2rs (rtg)

Errata ID: 7056
Status: Held for Document Update
Type: Technical
Publication Format(s) : TEXT

Reported By: Jan Lindblad
Date Reported: 2022-07-29
Held for Document Update by: Alvaro Retana
Date Held: 2022-09-07

Section 4 says:

augment "/nw:networks/nw:network/nw:node/nt:termination-point" {
  when '/nw:networks/nw:network/nw:network-types/'
     + 'fabric:fabric-network' {
    description
      "Augmentation parameters apply only for networks
       with fabric topology";
  }

It should say:

augment "/nw:networks/nw:network/nw:node/nt:termination-point" {
  when '../../nw:network-types/fabric:fabric-network' {
    description
      "Augmentation parameters apply only for networks
       with fabric topology";
  }

Notes:

The original YANG statements make the augmentation apply to all nw:networks as soon as there is at least one nw:network that is of fabric:fabric-network topo. This is clearly not the author's intent, as proven by the text in the description statement.

The corrected YANG statements make the augmentation only apply to the specific nw:networks that are of fabric topology. There are also other ways to fix this issue.

===
[AD Note] I believe that the original intent was as shown in the corrected text. However, the resolution is not straightforward, and an update may require further consideration in light of the current rules (rfc7950). Therefore, I am marking this report as "Hold for Document Update" [1].

[1] https://www.ietf.org/about/groups/iesg/statements/processing-errata-ietf-stream/

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