Re: [mpls] New Version Notification for draft-andersson-mpls-mna-fwk-02.txt

Tony Li <tony.li@tony.li> Tue, 31 May 2022 23:42 UTC

Return-Path: <tony1athome@gmail.com>
X-Original-To: mpls@ietfa.amsl.com
Delivered-To: mpls@ietfa.amsl.com
Received: from localhost (localhost [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id AFF29C15BFFB for <mpls@ietfa.amsl.com>; Tue, 31 May 2022 16:42:40 -0700 (PDT)
X-Virus-Scanned: amavisd-new at amsl.com
X-Spam-Flag: NO
X-Spam-Score: -6.507
X-Spam-Level:
X-Spam-Status: No, score=-6.507 tagged_above=-999 required=5 tests=[BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_EF=-0.1, FREEMAIL_FORGED_FROMDOMAIN=0.25, FREEMAIL_FROM=0.001, HEADER_FROM_DIFFERENT_DOMAINS=0.25, HTML_MESSAGE=0.001, RCVD_IN_DNSWL_HI=-5, RCVD_IN_ZEN_BLOCKED_OPENDNS=0.001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001, T_SCC_BODY_TEXT_LINE=-0.01] 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 ([50.223.129.194]) by localhost (ietfa.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id jxePf2S9Mh6B for <mpls@ietfa.amsl.com>; Tue, 31 May 2022 16:42:39 -0700 (PDT)
Received: from mail-pj1-x1030.google.com (mail-pj1-x1030.google.com [IPv6:2607:f8b0:4864:20::1030]) (using TLSv1.3 with cipher TLS_AES_128_GCM_SHA256 (128/128 bits) key-exchange X25519 server-signature RSA-PSS (2048 bits) server-digest SHA256) (No client certificate requested) by ietfa.amsl.com (Postfix) with ESMTPS id 60750C15AAFA for <mpls@ietf.org>; Tue, 31 May 2022 16:42:39 -0700 (PDT)
Received: by mail-pj1-x1030.google.com with SMTP id w2-20020a17090ac98200b001e0519fe5a8so373672pjt.4 for <mpls@ietf.org>; Tue, 31 May 2022 16:42:39 -0700 (PDT)
DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20210112; h=sender:from:message-id:mime-version:subject:date:in-reply-to:cc:to :references; bh=tAV5SfF6hjFXWozQaLBhscFmb8JmDXdAh5rVeEzACRs=; b=lCVfT3vqOxNLd54J+aXuSZCoAISQVGhaaH8JOJbEo7MouDC//t7l2Oe2HUquoxfQvZ Zb8pwU7l7nYBPcmGFag/D/+1nHzhYiptFWCve0tpYL3sTzfgUKk45Hd3XNU5gJlcbh4x S55g/A0XTTBZThvEdIATE7fdsm8oSsKQ0Hl2FbF1Ljg5ch057ukMuoDujV5Q+Fx8Lghd pCsQzQwtR+EzOu9FYzXZxpzODCmOnwQwXcKmCf3cWBf+ABCdKOWB41Z5p78AHSDVX+Zi VRCbzIEx3QyJPeAdQOqHRYghc1cchsXKGDGNhi662lToqzlL8+/cpW/PN5U42X5479Xn csAg==
X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=x-gm-message-state:sender:from:message-id:mime-version:subject:date :in-reply-to:cc:to:references; bh=tAV5SfF6hjFXWozQaLBhscFmb8JmDXdAh5rVeEzACRs=; b=dL+bbApCtQaa38yFnPhdFE9d6y36RJpYYp+jDycE9mqf2zVx+zKsS/zFG1Mj1N1f8Y kRbWwr37kmiUY5hd5E1FNyR8lSW4cmoGYaOntsN5OXrmqAyluJS7YEKgenRyXiEDOK8R zRqsWJ+PB4xBVtWviqFhvp5LMAemEC/ZA8rOjA1jnMezwpz9tfcMXbDL+ZOIO5jw/aCZ fpqkjFj7L4dBKCd8eWy+Snr+CIiQ2aBCgzN8wL2JGnoKx701e6JVUVVF96X8v+LnuqQz SKijJeFbtsHIhR5xppjdB4BKYkbDK2k+CkIj2p7ZjQLHS7via6lmLxBbyIR3jMVIcptc aV6w==
X-Gm-Message-State: AOAM530QwxUVApvNxjjDcqNiuCLzlBn73C3VXjScJOuA7dAk3z3GSyGR qDURlrm5iOFU1yyA/RtFaTXNlPjqxAg=
X-Google-Smtp-Source: ABdhPJxcB75tk2ddSQ4MB6hibuoq/dSHX/ijkFseCdwFYBMKjQEUJIMHlk0viGUdV7Wyw7m5kjkUAw==
X-Received: by 2002:a17:903:11c9:b0:154:be2d:eb9 with SMTP id q9-20020a17090311c900b00154be2d0eb9mr62360901plh.91.1654040558610; Tue, 31 May 2022 16:42:38 -0700 (PDT)
Received: from smtpclient.apple (c-67-169-103-239.hsd1.ca.comcast.net. [67.169.103.239]) by smtp.gmail.com with ESMTPSA id t7-20020a17090a4e4700b001df4b919937sm2586615pjl.16.2022.05.31.16.42.38 (version=TLS1_2 cipher=ECDHE-ECDSA-AES128-GCM-SHA256 bits=128/128); Tue, 31 May 2022 16:42:38 -0700 (PDT)
Sender: Tony Li <tony1athome@gmail.com>
From: Tony Li <tony.li@tony.li>
Message-Id: <46809A5F-2E05-43C4-94F6-4A18420773BC@tony.li>
Content-Type: multipart/alternative; boundary="Apple-Mail=_FBCFB460-CAC3-432D-84DC-8F6FC4A19650"
Mime-Version: 1.0 (Mac OS X Mail 15.0 \(3693.60.0.1.1\))
Date: Tue, 31 May 2022 16:42:37 -0700
In-Reply-To: <BY3PR13MB47878D442A198F5401EAEB0B9ADC9@BY3PR13MB4787.namprd13.prod.outlook.com>
Cc: mpls <mpls@ietf.org>
To: Haoyu Song <haoyu.song@futurewei.com>
References: <165359458885.5953.10887862533048781678@ietfa.amsl.com> <9FB9114D-7745-4216-8663-676EDC8245C7@tony.li> <BY3PR13MB4787A48A7749109040ABEB2F9ADC9@BY3PR13MB4787.namprd13.prod.outlook.com> <8678A4E7-447D-4C0F-99FF-B5A07270A450@tony.li> <BY3PR13MB47878D442A198F5401EAEB0B9ADC9@BY3PR13MB4787.namprd13.prod.outlook.com>
X-Mailer: Apple Mail (2.3693.60.0.1.1)
Archived-At: <https://mailarchive.ietf.org/arch/msg/mpls/eIiwZ1zyKcM9vbQv3EBoJto0ywk>
Subject: Re: [mpls] New Version Notification for draft-andersson-mpls-mna-fwk-02.txt
X-BeenThere: mpls@ietf.org
X-Mailman-Version: 2.1.34
Precedence: list
List-Id: Multi-Protocol Label Switching WG <mpls.ietf.org>
List-Unsubscribe: <https://www.ietf.org/mailman/options/mpls>, <mailto:mpls-request@ietf.org?subject=unsubscribe>
List-Archive: <https://mailarchive.ietf.org/arch/browse/mpls/>
List-Post: <mailto:mpls@ietf.org>
List-Help: <mailto:mpls-request@ietf.org?subject=help>
List-Subscribe: <https://www.ietf.org/mailman/listinfo/mpls>, <mailto:mpls-request@ietf.org?subject=subscribe>
X-List-Received-Date: Tue, 31 May 2022 23:42:40 -0000

Hi Haoyu,

> Thanks for the explanation. I think such explanation is exactly what’s needed in the document for clarification.


I’m glad it helps.  Again, the framework document is NOT supposed to be an analysis document.

 
> My understanding is that: If there is only PSD, then the so-called sub stack only contains a single label as indicator


Agreed.


> If there is also ISD, then the ISD will follow this indicator. Is that right?


If a solution specifies both ISD and PSD, then ISD would be part of the NAS.


> Doesn’t this imply a specific solution?


No. We currently have two solutions that would already fall into that class.

Tony