OCPBUGS-54739: Clarify MTU default for localnet NAD

[jab-rh]

• https://issues.redhat.com/browse/OCPBUGS-54739

Version(s): 4.17+

Issue:

Link to docs preview:

QE review:

• QE has approved this change.

Additional information:

4.17 is the first version w/ the new navigation. Would need different PR for earlier versions.

[openshift-ci-robot]

@jab-rh: This pull request references Jira Issue OCPBUGS-54739, which is invalid:

• expected the bug to target the "4.20.0" version, but no target version was set

Comment /jira refresh to re-evaluate validity if changes to the Jira bug are made, or edit the title of this pull request to link to a different bug.

The bug has been updated to refer to the pull request using the external bug tracker.

In response to this:

• https://issues.redhat.com/browse/OCPBUGS-54739

Version(s): 4.17+

Issue:

Link to docs preview:

QE review:

• QE has approved this change.

Additional information:

4.17 is the first version w/ the new navigation. Would need different PR for earlier versions.

Instructions for interacting with me using PR comments are available here. If you have questions or suggestions related to my behavior, please file an issue against the openshift-eng/jira-lifecycle-plugin repository.

[ocpdocs-previewbot]

🤖 Thu Aug 21 19:08:47 - Prow CI generated the docs preview:

https://97943--ocpdocs-pr.netlify.app/
https://97943--ocpdocs-pr.netlify.app/openshift-enterprise/latest/networking/multiple_networks/secondary_networks/creating-secondary-nwt-ovnk.html

[openshift-ci]

@jab-rh: all tests passed!

Full PR test history. Your PR dashboard.

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[bergerhoffer]

The branch/enterprise-4.21 label has been added to this PR.

This is because your PR targets the main branch and is labeled for enterprise-4.20. And any PR going into main must also target the latest version branch (enterprise-4.21).

If the update in your PR does NOT apply to version 4.21 onward, please re-target this PR to go directly into the appropriate version branch or branches (enterprise-4.x) instead of main.

[openshift-merge-robot]

PR needs rebase.

Instructions for interacting with me using PR comments are available here. If you have questions or suggestions related to my behavior, please file an issue against the kubernetes-sigs/prow repository.