Peter –

Thanx for doing this.
The changes look good to me.

   Les


From: Peter Psenak <[email protected]>
Sent: Tuesday, January 28, 2025 5:28 AM
To: Acee Lindem <[email protected]>; lsr <[email protected]>; Shraddha Hegde 
<[email protected]>; Yingzhen Qu <[email protected]>; Les Ginsberg 
(ginsberg) <[email protected]>
Cc: [email protected]
Subject: Re: Working Group Last Call of "IGP Flexible Algorithms Reverse 
Affinity Constraint" - draft-ietf-lsr-igp-flex-algo-reverse-affinity-03

Hi Acee, Shraddha, Yingzhen, Les,

I have incorporated all your comments and published the new version of the 
draft.

thanks,
Peter

On 17/01/2025 17:24, Acee Lindem wrote:
Speaking as WG member:

I support publication. Flex algorithm has been successfully implemented and 
deployed and it is great that we are extending it to additional uses cases.

I do have a couple comments:

   1. The concept of “reverse” is well known to those very familiar with the 
IGPs. In this draft, it is represented both in terms of the SPF computation and 
the traffic flows. I believe it should only be the former. I’ve tried to 
correct this in the attached diff. It would be nice to have short definition of 
the term but I won’t make you do that.
   2. The Abstract and Introduction should provide more information than 
“additional constraints”. I’ve provided an alternative - feel free to edit.
   3. The OSPF Sub-TLVs should not refer to the IS-IS Sub-TLVs (especially when 
the Sub-TLV behavior is so brief). RFC 7752 was the worst case of this (where 
OSPF specifications pointed IS-IS encodings that weren’t the same) and that was 
the most poorly written routing specification in the history of poorly written 
routing specifications.
   4. Define the behavior the MUST contains are violated, e.g., log and ignore 
the Sub-TLV. Gunter will certainly ask for this.
   4. Indicate in IANA section that the code points have been allocated via the 
early allocation process. Change the text to “IANA has assigned the following” 
rather than “This document registers following”

   5. Remove the reference to I-D.ietf-lsr-flex-algo-bw-con as it is not 
referenced.


Thanks,
Acee


.


On Jan 16, 2025, at 14:02, Acee Lindem 
<[email protected]><mailto:[email protected]> wrote:

LSR WG,


This email begins a 3 week WG Last Call for the following draft: "IGP Flexible 
Algorithms Reverse Affinity Constraint" - 
draft-ietf-lsr-igp-flex-algo-reverse-affinity-03"

Please review the document and indicate your support or objections by February 
7th, 2025. The extra week is to account for the Lunar New Year holiday.

Thanks,
Acee



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