Re: [Idr] Fw: Re: New Version Notification for draft-xie-idr-mpbgp-extention-4map6-00.txt

[Chongfeng Xie <[e-mail]>]

Hi Gyan,
Thank you for your comments and suggestions, my feedback inline please.
 
From: Gyan Mishra
Date: 2023-01-19 13:10
To: Chongfeng Xie
CC: donggz; idr; idr-chairs; xing
Subject: Re: [Idr] Fw: Re: New Version Notification for draft-xie-idr-mpbgp-extention-4map6-00.txt


Hi Chongfeng

 I read the draft and it’s a quite an interesting solution ipv4aas service offering.
[Chongfeng]: Thank you!

As this relates to ipv4aas as I think it maybe a good idea to run by 6MAN and v6OPS and compare with to existing 4to6 Nat translation solutions such as 464XLAT, DSLITE etc.
[Chongfeng]: The approach in this new draft provides IPv4aaS mainly at the transit core which may be composed of multiple ASes, it does not compete with 464XLAT or DS-List，but can work with these technologies to form an overall end-to-end IPv4 aaS solution.

Also comparatively how from a complexity and state maintenance and management overhead perspective to IPv4AAS solutions.
[Chongfeng]:  I agree with you, this comparative analysis should be valuable, it can be done later.

For the translation database on the PE nodes would that be 1-1 host entires?  I did not understand the translation or encapsulation which are different method used by the draft. 
[Chongfeng]:   This draft is about extention to MP-BGP for IPv4 delivery over multi-domain IPv6-only networks, the core of approach is IPv4/IPv6 adderss mapping with the granuality of IPv4 address block, and the ratio of IPv4 to IPv6 is 1:1.  Although encapsulation and translation are different mechanisms, they can share the same rule-based address mapping algorithm, the only difference lies in the packet format, the egress PE can recover IPv6 packets to IPv4 one based on the next header value.  Of course, this is out of the scope of an IDR draft.

This draft is doing a 1-1 4to6 mapping I believe which is not really translation or encapsulation.  Maybe it’s not clear to me.
[Chongfeng]:   My feedback is the same as above.

Kind Regards

Gyan

Thank you again for your comments and questions.

Best regards
Chongfeng

On Tue, Jan 17, 2023 at 6:37 AM Chongfeng Xie <[e-mail]> wrote:

Hello, everyone, 
We have just submitted a new draft, which is about MP-BGP extension for multi-domain IPv6-only neworking. Since this is its first submission, there must be many defects in it, we look forward to receiving more comments, suggestions and even criticism.

Best regards
Chongfeng

From: Chongfeng Xie
Date: 2023-01-17 19:33
To: internet-drafts
CC: donggz; xing; idr-chairs
Subject: Re: New Version Notification for draft-xie-idr-mpbgp-extention-4map6-00.txt

Hello, everyone, 
We have just submitted a new draft, which is about MP-BGP extension for multi-domain IPv6-only neworking. Since this is its first submission, there must be many defects in it, we look forward to receiving more comments, suggestions and even criticism.

Best regards
Chongfeng

 
From: internet-drafts
Date: 2023-01-17 19:17
To: Chongfeng Xie; Guozhen; Guozhen Dong; Xing Li
Subject: New Version Notification for draft-xie-idr-mpbgp-extention-4map6-00.txt
 
A new version of I-D, draft-xie-idr-mpbgp-extention-4map6-00.txt
has been successfully submitted by Chongfeng Xie and posted to the
IETF repository.
 
Name: draft-xie-idr-mpbgp-extention-4map6
Revision: 00
Title: MP-BGP Extension and the Procedures for IPv4/IPv6 Mapping Advertisement
Document date: 2023-01-15
Group: Individual Submission
Pages: 13
URL:            https://www.ietf.org/archive/id/draft-xie-idr-mpbgp-extention-4map6-00.txt
Status:         https://datatracker.ietf.org/doc/draft-xie-idr-mpbgp-extention-4map6/
Htmlized:       https://datatracker.ietf.org/doc/html/draft-xie-idr-mpbgp-extention-4map6
 
 
Abstract:
   This document defines NLRI with specific AFI/SAFI combination, a new
   BGP path attribute known as the "4map6" and a set of related
   procedures, which can be used for transferring IPv4/IPv6 address
   mapping rule to support IPv4 service delivery in multi-domain
   IPv6-only underlay networks.
 
                                                                                  
 
 
The IETF Secretariat
 
 
 
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Gyan Mishra
Network Solutions Architect 
Email [e-mail]
M 301 502-1347