Hi Mallory,

Many thanks for your review. Please see replies inline with Jie>:

-----Original Message-----
From: Mallory Knodel via Datatracker <[email protected]> 
Sent: Wednesday, June 17, 2026 8:40 AM
To: [email protected]
Cc: [email protected]; [email protected]; [email protected]
Subject: draft-ietf-idr-sr-policy-nrp-11 ietf last call Genart review

Document: draft-ietf-idr-sr-policy-nrp
Title: BGP SR Policy Extensions for Network Resource Partition
Reviewer: Mallory Knodel
Review result: Ready

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Document: draft-ietf-idr-sr-policy-nrp-??
Reviewer: Mallory Knodel
Review Date: 2026-06-16
IETF LC End Date: 2026-06-15
IESG Telechat date: 2026-07-02

Summary: I am not a domain expert and am reviewing for readability and 
comprehension. The document is clear, complete, architecturally aligned for 
someone outside IDR, so thanks for writing it. It extends BGP segment routing 
policy signaling so that a path can be explicitly associated with a specific 
Network Resource Partition (NRP).

Major issues: None.

Minor issues:

 * It seems that there is a missing architectural overview of this  
specification that could be elaborated in the introduction. For example, there  
is no mention of "inter-domain" anywhere in the document. It leaves a  
non-expert like me wondering what this looks like across various domains or  
ASes. Perhaps such a paragraph could also contain an example of inter-domain  
coordination.

Jie> The architectural overview is provided in an accompanying document: draft- 
ietf-spring-sr-policy-nrp, which is referenced by this draft. 
Jie> Although BGP was initially designed for inter-domain routing, in the 
context of BGP based SR Policy signaling, it is mainly used within a single 
domain, or several domains which are under the same administration. Thus 
inter-domain coordination is considered out of the scope of this document.

 * Under the procedures section validity is mentioned, "...a BGP speaker  
determines if it is valid and usable according to ... RFC9830," but there is  
no direct mention of an "invalid" or "unusable" NRP ID sub-TLV. Perhaps this  
is what is meant in the second paragraph of the section on Error Handling, but  
then the language could be harmonized.

Jie> You are right that the description of valid and usable is related to the 
validation of an SR Policy candidate path, while the error handling section is 
about the syntactic check of the NRP ID sub-TLV. They are arranged in different 
sections on purpose. 

 * The first paragraph should summarize the security considerations cited, not  
just giving the citation. The second paragraph in security considerations  
points to an I-D, not an RFC so I would suggest bringing those relevant  
sections' full text into this document if it is published first.

Jie> Thanks for your suggestion, we will add summary of the security 
considerations in the cited documents. 


Nits/editorial comments:

 * Second paragraph in the introduction has some clumsy wording, "... NRP-based 
 enhanced VPN services based on VPN..."

 * Right after that "Traffic Engineering (TE)" defines the acronym "TE" but it  
is never used again so suggesting dropping this.

 * The acronyms "SAFI" and "NLRI" are never expanded.

 * Make consistent the use of singular/plural "NRP/NRPs".

 *

Jie> Thanks, we will fix these nits in next revision..

Best regards,
Jie
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