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Re: [ippm] Enhanced Alternate Marking draft-zhou-ippm-enhanced-alternate-marking-07

Haoyu Song <haoyu.song@futurewei.com> Fri, 22 October 2021 17:59 UTC

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From: Haoyu Song <haoyu.song@futurewei.com>
To: Tianran Zhou <zhoutianran@huawei.com>, "IETF IPPM WG (ippm@ietf.org)" <ippm@ietf.org>
Thread-Topic: Enhanced Alternate Marking draft-zhou-ippm-enhanced-alternate-marking-07
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Date: Fri, 22 Oct 2021 17:59:19 +0000
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Archived-At: <https://mailarchive.ietf.org/arch/msg/ippm/KYowCC4KRYYatbzAu9RHXNBy7bs>
Subject: Re: [ippm] Enhanced Alternate Marking draft-zhou-ippm-enhanced-alternate-marking-07
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Hi Tianran,

I'm interested in this work but I think the draft needs to be expanded to clarify several points


  1.  The meaning and usage of the flag bits need to be further explained. For example, what's the true meaning of "flow direction"?
  2.  The use of meta info is not explained.
  3.  The capability description is too terse for me to catch the real impact of the enhancement. For example, what's the thicker loss measurement and more dense delay measurement? How does the new enhancement help to achieve the goal and how much can it help?

Thanks,
Haoyu

From: ippm <ippm-bounces@ietf.org> On Behalf Of Tianran Zhou
Sent: Thursday, October 21, 2021 11:27 PM
To: IETF IPPM WG (ippm@ietf.org) <ippm@ietf.org>
Subject: [ippm] Enhanced Alternate Marking draft-zhou-ippm-enhanced-alternate-marking-07

Hi WG,

There are many interests in this working group working on the alternate marking, RFC8321 and RFC8889.
As you may have seen, we applied this method in IPv6, and the draft is in IESG review.
https://datatracker.ietf.org/doc/draft-ietf-6man-ipv6-alt-mark/<https://nam11.safelinks.protection.outlook.com/?url=https%3A%2F%2Fdatatracker.ietf.org%2Fdoc%2Fdraft-ietf-6man-ipv6-alt-mark%2F&data=04%7C01%7Chaoyu.song%40futurewei.com%7C4c8f62b3f93a4cda92d908d9952517cc%7C0fee8ff2a3b240189c753a1d5591fedc%7C1%7C0%7C637704808830897476%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C1000&sdata=sg4Lo2JNBtmnAHkjIyry5Y4uaPzOEsGGKWCbWZ9pYDQ%3D&reserved=0>

Based on the above draft, and the comments/suggestions we received, we produced an Enhanced Alternate Marking Method.
https://datatracker.ietf.org/doc/draft-zhou-ippm-enhanced-alternate-marking/<https://nam11.safelinks.protection.outlook.com/?url=https%3A%2F%2Fdatatracker.ietf.org%2Fdoc%2Fdraft-zhou-ippm-enhanced-alternate-marking%2F&data=04%7C01%7Chaoyu.song%40futurewei.com%7C4c8f62b3f93a4cda92d908d9952517cc%7C0fee8ff2a3b240189c753a1d5591fedc%7C1%7C0%7C637704808830907402%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C1000&sdata=EV9y8%2FfV1Oe8MgcSC15uF4CC7qnLKKRXFVhyQ7q10lw%3D&reserved=0>

This document extends the IPv6 Alternate Marking Option,  to provide the enhanced capabilities and allow advanced functionalities.

We hope you like this idea.
Any comments are welcome.

Thanks,
Tianran

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