Hi,

I have been selected as the Operational Directorate (opsdir) reviewer for this Internet-Draft. 

The Operational Directorate reviews all operational and management-related Internet-Drafts to ensure alignment with operational best practices and that adequate operational considerations are covered.

A complete set of _"Guidelines for Considering Operations and Management in IETF Specifications"_ can be found at https://datatracker.ietf.org/doc/draft-ietf-opsawg-rfc5706bis/.

While these comments are primarily for the Operations and Management Area Directors (Ops ADs), the authors should consider them alongside other feedback received.


- Document: [draft-ietf-intarea-v4-via-v6-07]

- Reviewer: [Thomas Graf]

- Review Date: [13-04-2026]

- Intended Status: [Proposed Status, e.g., Standards Track] 

 
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## Summary 

Choose one: 

- Has Issues: I have some minor concerns about this document that I think should be resolved before publication.
 

## General Operational Comments Alignment with RFC 5706bis 

I welcome that the document has an operational consideration section. However, besides traceroute other OAM considerations such as for IPFIX should be considered as well.

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## Minor Issues 

I suggest to adjust the second paragraph in the operational considerations section as following to:

Just like any other extension to an already deployed technology, it requires changes how it is being operated as well. Even though v4-via-v6 routes are similar in structure to traditional next-hop routes, some monitoring protocols and management tools require adjustment. To take IPFIX [RFC7011] as example for monitoring forward and data plane. Each IPFIX data and template record for IPv4 flows should contain IE62 ipNextHopIPv6Address to describe IPv6 next hop. Deployment of v4-via-v6 routing in a network requires testing and potentially updating of all tools and scripts that manipulate or examine routes.

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## Nits 

For anything else, please consider the nits described in here:

DOCX: https://github.com/network-analytics/ietf-network-analytics-document-status/blob/main/document-review/draft-ietf-intarea-v4-via-v6-07.pdf
PDF: https://github.com/network-analytics/ietf-network-analytics-document-status/blob/main/document-review/draft-ietf-intarea-v4-via-v6-07.docx


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