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Re: [Rdma-cc-interest] Side meeting plans at IETF-106

"Zhuangyan (Yan)" <zhuangyan.zhuang@huawei.com> Wed, 13 November 2019 19:10 UTC

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From: "Zhuangyan (Yan)" <zhuangyan.zhuang@huawei.com>
To: Lars Eggert <lars@eggert.org>
CC: "rdma-cc-interest@ietf.org" <rdma-cc-interest@ietf.org>, "Black, David" <David.Black@dell.com>, Paul Congdon <paul.congdon@tallac.com>
Thread-Topic: [Rdma-cc-interest] Side meeting plans at IETF-106
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Date: Wed, 13 Nov 2019 19:09:50 +0000
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Subject: Re: [Rdma-cc-interest] Side meeting plans at IETF-106
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Thank you, Lars. Sure, totally understand the concern.

It would be risky to work on a protocol that could be changed by others sometime, although in existing defintion there might be some possible ways to improve.


We will indicate this in the draft and try tcp traffics to see how this idea fits.


Thank you for your comments.


Yan


________________________________
From: Rdma-cc-interest <rdma-cc-interest-bounces@ietf.org> on behalf of Lars Eggert <lars@eggert.org>
Sent: Wednesday, November 13, 2019 4:21 PM
To: Zhuangyan (Yan)
Cc: rdma-cc-interest@ietf.org; Black, David; Paul Congdon
Subject: Re: [Rdma-cc-interest] Side meeting plans at IETF-106

On 2019-11-13, at 10:13, Zhuangyan (Yan) <zhuangyan.zhuang@huawei.com> wrote:
> Since this practice asks for no change of roce, roce also uses ECN defined by IETF as its congestion marking and network management (like netconf/yang et al.) might be used for informaiton collection.

RoCE might at the moment *react to* ECN as defined by the IETF, but *how* it reacts is *not* defined by the IETF and can change at any time.

It's therefore pointless to try and cater to RoCE, since IBTA/Mellanox can change it at any time however they see fit.

Lars
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