Hi Aijun,

Les is on vacation, so you’ll pardon while I pinch-hit.

Your opinions are duly noted.

Thank you very much for your comments.

Regards,
Tony


> On Sep 6, 2024, at 6:46 AM, Aijun Wang - wangaijun at tsinghua.org.cn 
> <[email protected]> wrote:
> 
> Hi, Les:
>  
> I have reviewed again this revised draft, and contrary to your declaration 
> that "it addressed all the comments/issues", IT IS NOT. 
> Here are my analysis:
>  
> 1) The document states in several places that the key is necessary for the 
> right process of MP-TLV, and gives two examples for the TLV 22 and TLV 135, 
> their respective key definitions, but, there is no key definition for other 
> code points.
>  
> 2) If you think it is impossible to define the key definition for all the 
> MP-TLV applicable TLV that you list in the sec 8.1(IANA consideration) in 
> your document, then this is the WRONG direction to solve the MP-TLV related 
> problem.
>   If you can't define such key information, the interoperability problem will 
> be arose within the operator network.
>  
> 3) Such consideration is same for the MP-TLV Capability Advertisement. In 
> your solution, MP-TLV capability advertisement is not per-codepoint basis, 
> then how you require the operator "diligence is still required on the part of 
> the operator to ensure that configurations which require the sending of 
> MP-TLV for a given codepoint are not introduced on any node in the network 
> until all nodes in the network support MP-TLV for the relevant codepoints." ? 
> By manual? By other OOB methods?
>  
> 4) Based on the above comments, I think your draft should be renamed as 
> "MP-TLV Key Definition for IS-IS TLV 22 and TLV 135", it is far to be 
> evaluated as one general solution for MP-TLV problem.
>  
> I can't see other values except the key definition of TLV 22 and TLV 135 from 
> the current version.
> Following such direction, the operator will be busy to coordinate the 
> vendors, the deployment for the opened Pandora's box
>  
>  
> Best Regards
>  
> Aijun Wang
> China Telecom
>  
> -----邮件原件-----
> 发件人: [email protected] <mailto:[email protected]> 
> [mailto:[email protected]] 代表 [email protected] 
> <mailto:[email protected]>
> 发送时间: 2024年9月6日 1:57
> 收件人: [email protected] <mailto:[email protected]>
> 抄送: [email protected] <mailto:[email protected]>
> 主题: [Lsr] I-D Action: draft-ietf-lsr-multi-tlv-05.txt
>  
> Internet-Draft draft-ietf-lsr-multi-tlv-05.txt is now available. It is a work 
> item of the Link State Routing (LSR) WG of the IETF.
>  
>    Title:   Multi-part TLVs in IS-IS
>    Authors: Parag Kaneriya
>             Tony Li
>             Antoni Przygienda
>             Shraddha Hegde
>             Les Ginsberg
>    Name:    draft-ietf-lsr-multi-tlv-05.txt
>    Pages:   27
>    Dates:   2024-09-05
>  
> Abstract:
>  
>    New technologies are adding new information into IS-IS while
>    deployment scales are simultaneously increasing, causing the contents
>    of many critical TLVs to exceed the currently supported limit of 255
>    octets.  Extensions exist that require significant IS-IS changes that
>    could help address the problem, but a less drastic solution would be
>    beneficial.  This document codifies the common mechanism of extending
>    the TLV content space through multiple TLVs.
>  
> The IETF datatracker status page for this Internet-Draft is:
> https://datatracker.ietf.org/doc/draft-ietf-lsr-multi-tlv/
>  
> There is also an HTMLized version available at:
> https://datatracker.ietf.org/doc/html/draft-ietf-lsr-multi-tlv-05
>  
> A diff from the previous version is available at:
> https://author-tools.ietf.org/iddiff?url2=draft-ietf-lsr-multi-tlv-05
>  
> Internet-Drafts are also available by rsync at:
> rsync.ietf.org <http://rsync.ietf.org/>::internet-drafts
>  
>  
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