Re: [spring] WG Adoption Call for draft-dong-spring-sr-for-enhanced-vpn

Shunsuke Homma <shunsuke.homma.ietf@gmail.com> Mon, 08 February 2021 16:05 UTC

Return-Path: <shunsuke.homma.ietf@gmail.com>
X-Original-To: spring@ietfa.amsl.com
Delivered-To: spring@ietfa.amsl.com
Received: from localhost (localhost [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id A81FE3A1102; Mon, 8 Feb 2021 08:05:04 -0800 (PST)
X-Virus-Scanned: amavisd-new at amsl.com
X-Spam-Flag: NO
X-Spam-Score: -2.097
X-Spam-Level:
X-Spam-Status: No, score=-2.097 tagged_above=-999 required=5 tests=[BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, FREEMAIL_FROM=0.001, HTML_MESSAGE=0.001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001, URIBL_BLOCKED=0.001] autolearn=ham autolearn_force=no
Authentication-Results: ietfa.amsl.com (amavisd-new); dkim=pass (2048-bit key) header.d=gmail.com
Received: from mail.ietf.org ([4.31.198.44]) by localhost (ietfa.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id x9ktpD4vZsZ3; Mon, 8 Feb 2021 08:05:02 -0800 (PST)
Received: from mail-yb1-xb31.google.com (mail-yb1-xb31.google.com [IPv6:2607:f8b0:4864:20::b31]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by ietfa.amsl.com (Postfix) with ESMTPS id E5CFF3A1103; Mon, 8 Feb 2021 08:05:01 -0800 (PST)
Received: by mail-yb1-xb31.google.com with SMTP id y128so15033143ybf.10; Mon, 08 Feb 2021 08:05:01 -0800 (PST)
DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=mime-version:references:in-reply-to:from:date:message-id:subject:to :cc; bh=bvI8TNDe3LTUU2V5FRsSazs0R1MGYZn5NXxp10L/TFE=; b=fozMJktEVnGGmCOfgamzhryUK9h+Hvy0+xxUuffSjy0f/suQxGQxDxhTccOws6AOSl b4qgONCyfnYv8R/jByOULfD8VjRmnpruq2pyg8wByYIgF3bW6V5ukeqvGCO5HjHv0tV1 64zGsYzi9FIGs40DWVsUXYkRgNHnwqL2F/iWK2Zny52wLBEVNVisAZnhMr+r4bBlMci+ 20gjZXOW8gWJ24GV9Aj0Q22kNUCVUWDvLRXuGP+UCH/hpzaXG9BfN/fw1UnYaYa23vEt Rdo2b7juiESBXrEsOagnWBJK0LMXsSbXG+0X030ZZG5yTBt9bWnTS592YQ65XDehVn3t BTIg==
X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:mime-version:references:in-reply-to:from:date :message-id:subject:to:cc; bh=bvI8TNDe3LTUU2V5FRsSazs0R1MGYZn5NXxp10L/TFE=; b=c+GHR4fepPQjcSkOxzdl4raGjZv6ikgM012T7YoU64zN+UK27iayxA+M5lIGxXv0oy DLRsPGX/E7couI/jhpbPMZIqU86YzoOF9fK4zMC0dvQuktYeXi0sf3MqiMGPzsFLzyy2 4sdo8kvEg8kcaXq3fBJHLHc/F3dR4AMeq1gMpyjO3SleEITmRqPtp5PSTIJC0G6YW2yC ysB77XmsVdL+dPkbuurK3kCKNUUX/t43TB25iUYSH3LjgTAsQeEJiLFnfNRiA+XAIwSN 4IQK/AOS5Lj5UlLLskC6mRjTibQEhd78k8Ov0lm1DCHS2h4d6c/X15l4qb6qCh6fSovT b3oA==
X-Gm-Message-State: AOAM532G1RM1BksZNmRaycZ5hxxVTmQ1H3wD6JkJpUphUhe/reFAWIn2 czXPVqKVER/1lZ1taQkblZGlbbJtJvxLqfFJ1pY=
X-Google-Smtp-Source: ABdhPJxB1G5TDo5mCYVvYmYFT4PcPDBbuKfCyBEuY+ymadPoFnbKCPj5+IXsc9LlO2mlSfQfnjQdPuSJ0EiZ1jbSSVs=
X-Received: by 2002:a25:55c5:: with SMTP id j188mr25735669ybb.455.1612800301059; Mon, 08 Feb 2021 08:05:01 -0800 (PST)
MIME-Version: 1.0
References: <MN2PR13MB42061AD1E295598F1F2726BDD2BB9@MN2PR13MB4206.namprd13.prod.outlook.com>
In-Reply-To: <MN2PR13MB42061AD1E295598F1F2726BDD2BB9@MN2PR13MB4206.namprd13.prod.outlook.com>
From: Shunsuke Homma <shunsuke.homma.ietf@gmail.com>
Date: Tue, 9 Feb 2021 01:04:50 +0900
Message-ID: <CAKr2Fb-1oZMaSd=1t-nyWs_7NPyi4mmH5MwKqciN=8RhpyREbg@mail.gmail.com>
To: James Guichard <james.n.guichard@futurewei.com>
Cc: "spring@ietf.org" <spring@ietf.org>, "spring-chairs@ietf.org" <spring-chairs@ietf.org>
Content-Type: multipart/alternative; boundary="00000000000009d60505bad55517"
Archived-At: <https://mailarchive.ietf.org/arch/msg/spring/0V81UiNdTjSkZPwe_MnxlgUg-3k>
Subject: Re: [spring] WG Adoption Call for draft-dong-spring-sr-for-enhanced-vpn
X-BeenThere: spring@ietf.org
X-Mailman-Version: 2.1.29
Precedence: list
List-Id: "Source Packet Routing in NetworkinG \(SPRING\)" <spring.ietf.org>
List-Unsubscribe: <https://www.ietf.org/mailman/options/spring>, <mailto:spring-request@ietf.org?subject=unsubscribe>
List-Archive: <https://mailarchive.ietf.org/arch/browse/spring/>
List-Post: <mailto:spring@ietf.org>
List-Help: <mailto:spring-request@ietf.org?subject=help>
List-Subscribe: <https://www.ietf.org/mailman/listinfo/spring>, <mailto:spring-request@ietf.org?subject=subscribe>
X-List-Received-Date: Mon, 08 Feb 2021 16:05:05 -0000

Hi WG,

I think that this document is good enough as starting point for the WG, and
I support the adoption. There are many drafts related to network slice with
SR (e.g., SR + Flex-algo, draft-bestbar-spring-scalable-ns, etc.) and I
hope it will be clarified which is the best in future work.

The following are my comments to the draft.
- The example describes three isolated VTNs. I assume (hard) isolation will
cause split loss, and oversubscription will be sometimes needed. Hence, it
may be better to allow a resource-aware SID to belong to multiple VTNs.

- From network slicing (i.e., NaaS model) perspective, I assume visibility
will be especially important. As one more important requirement, network
operators want to provide only information of the VTN whose customer uses
to that customer. For example, if a customer gets VTN information with
BGP-LS, some mechanisms to prevent to leak other VTNs information in BGP-LS
would be needed.

- There is a typo in figure2. The adj-SID of the link from 203 to 204 in
green VTN should be 2002.

Regards,

Shunsuke

On Wed, Jan 27, 2021 at 8:47 PM James Guichard <
james.n.guichard@futurewei.com> wrote:

> Dear WG:
>
>
>
> This message starts a 2 week WG adoption call for
> https://datatracker.ietf.org/doc/draft-dong-spring-sr-for-enhanced-vpn/
> ending February 10th 2021.
>
>
>
> After review of the document please indicate support (or not) for WG
> adoption to the mailing list and if you are willing to work on the
> document, please state this explicitly. This gives the chairs an indication
> of the energy level of people in the working group willing to work on this
> document. Please also provide comments/reasons for your support (or lack
> thereof) as this is a stronger way to indicate your (non) support as this
> is not a vote.
>
>
>
> Thanks!
>
>
>
> Jim, Bruno & Joel
>
>
>
>
>
>
> _______________________________________________
> spring mailing list
> spring@ietf.org
> https://www.ietf.org/mailman/listinfo/spring
>