Re: [Rift] I-D Action: draft-ietf-rift-applicability-01.txt

Hi Melchior,

Thank you! Please find my comments inline start with "Wei>>>>"

Best Regards,

Yuehua Wei

ZTE Corporation

南京市软件大道50号/No.50, Software Avenue, Nanjing, 210012, P. R. China

M: +86 13851460269 E: wei.yuehua@zte.com.cn

原始邮件

发件人：MelchiorAelmans
收件人：魏月华00019655;
抄送人：draft-wei-rift-applicability@ietf.org;rift@ietf.org;
日 期 ：2020年10月16日 04:08
主 题 ：Re: [Rift] I-D Action: draft-ietf-rift-applicability-01.txt

Thanks for taking into account my suggestions.

I'm rereading the draft again and section 4.10 "Dual Homing Servers" doesn't really make it clear to me what the benefits are for dual homing servers to a RIFT fabric.

First, in this specific section you start using Spine and ToR to refer to this level where in other places in the draft you only refer to this as Spine. For easier reading I would suggest picking Spine.
Wei>>>> I am using ToR1&ToR2 and SV(1, ...,n) to describe an example of a fat-tree structure in a data center scenario for a more intuitive understanding. The SVs are leaves.Second, although I agree that the loss of a Spine results in more specifics would they in this example hit the server? From the server perspective the default still points to the Leaf. The Leaf would indeed need to have more specifics in order to avoid the blakhole at Spine level but I'm not sure they are propagated to the servers.
Wei>>>> In this figure, the SVs are leaves.Also, it might be interesting to emphasize little more on the advantages of multi-homing servers to a RIFT fabric especially when they partake in RIFT; the avoidance of L2 in between Leaf and server, easier IP mobility, etc.

Looking forward to hearing what you think.

If you are interested I'm willing to (re)write something for this section.
Wei>>>>comments are welcome.

Cheers,
Melchior

On Tue, Oct 13, 2020 at 10:58 AM <wei.yuehua@zte.com.cn> wrote:

Hi

Will reflect the correction to version -03.

Thank you so much!

Best Regards,

Yuehua Wei

ZTE Corporation

南京市软件大道50号/No.50, Software Avenue, Nanjing, 210012, P. R. China

M: +86 13851460269 E: wei.yuehua@zte.com.cn

原始邮件

发件人：MelchiorAelmans
收件人：draft-wei-rift-applicability@ietf.org;
抄送人：rift@ietf.org;
日 期 ：2020年10月12日 21:38
主 题 ：Re: [Rift] I-D Action: draft-ietf-rift-applicability-01.txt

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Hi,

I don't believe the below was corrected in the -02 version as it still reads "more a specific" instead of "a more specific".

Cheers,
Melchior

On Sun, May 3, 2020 at 9:37 PM Melchior Aelmans <melchior@aelmans.eu> wrote:

Dear authors,

I've spotted a small typo in section 4.6. Positive vs. Negative Disaggregation:

Disaggregation is the procedure whereby [RIFT] advertises more a specific route Southwards as an exception to the aggregated fabric-default North.

I think you are trying to say "advertises a more sepcific".

Cheers,

Melchior

On Fri, Apr 3, 2020 at 10:54 AM <internet-drafts@ietf.org> wrote:

A New Internet-Draft is available from the on-line Internet-Drafts directories.
This draft is a work item of the Routing In Fat Trees WG of the IETF.

        Title           : RIFT Applicability
        Authors         : Yuehua Wei
                          Zheng Zhang
                          Dmitry Afanasiev
                          Tom Verhaeg
                          Jaroslaw Kowalczyk
                          Pascal Thubert
        Filename        : draft-ietf-rift-applicability-01.txt
        Pages           : 29
        Date            : 2020-04-03

Abstract:
   This document discusses the properties, applicability and operational
   considerations of RIFT in different network scenarios.  It intends to
   provide a rough guide how RIFT can be deployed to simplify routing
   operations in Clos topologies and their variations.

The IETF datatracker status page for this draft is:
https://datatracker.ietf.org/doc/draft-ietf-rift-applicability/

There are also htmlized versions available at:
https://tools.ietf.org/html/draft-ietf-rift-applicability-01
https://datatracker.ietf.org/doc/html/draft-ietf-rift-applicability-01

A diff from the previous version is available at:
https://www.ietf.org/rfcdiff?url2=draft-ietf-rift-applicability-01

Please note that it may take a couple of minutes from the time of submission
until the htmlized version and diff are available at tools.ietf.org.

Internet-Drafts are also available by anonymous FTP at:
ftp://ftp.ietf.org/internet-drafts/

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