IETF Logo Mail Archive

[Pals] Continuing with my comments on draft-decraene-mpls-slid-encoded-entropy-label-id

Greg Mirsky <gregimirsky@gmail.com> Thu, 13 January 2022 22:41 UTC

Return-Path: <gregimirsky@gmail.com>
X-Original-To: pals@ietfa.amsl.com
Delivered-To: pals@ietfa.amsl.com
Received: from localhost (localhost [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id 578833A02F9; Thu, 13 Jan 2022 14:41:22 -0800 (PST)
X-Virus-Scanned: amavisd-new at amsl.com
X-Spam-Flag: NO
X-Spam-Score: -7.098
X-Spam-Level:
X-Spam-Status: No, score=-7.098 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, RCVD_IN_DNSWL_HI=-5, SPF_HELO_NONE=0.001, SPF_PASS=-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 LIrQwRYBnAc5; Thu, 13 Jan 2022 14:41:21 -0800 (PST)
Received: from mail-ed1-x529.google.com (mail-ed1-x529.google.com [IPv6:2a00:1450:4864:20::529]) (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 E73613A02C1; Thu, 13 Jan 2022 14:41:20 -0800 (PST)
Received: by mail-ed1-x529.google.com with SMTP id m4so28339710edb.10; Thu, 13 Jan 2022 14:41:20 -0800 (PST)
DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20210112; h=mime-version:from:date:message-id:subject:to; bh=Subqz+1zLd0wxvPwaavHGiW0HnUyEd24urh8CmTGA7s=; b=mvL1NpAoq3Q7+ReCTbNjebeMngfnYGT8bxFV2xVKdbMTBIiyc2iTxcGzkKe5aYx5oE q5U+JWy7Kvu0i4JBJFp7AcbPhCFckFPyKzIFIHKv/UXw3XzTUWrNvSaz5KxaEpDJJ7x8 8Prr3XCX0aL6uGaztxYUGuIBLBE2Rag7JiBkEuDqcfmqfRrAJO7GwloVw81dt3FtGkFq bOTOTW6UY8eZfgHql0e8FK87wo5b48cVfW94V1rdqhlAfTnd85fLhAgiLB0gR14EvbgR upg+g/c3q3uAa71VXLH7gE88kJnmlEz5HEmZ5sav7PN6+xFgHuTIMMm4quOj5pEeJ0Kn znfQ==
X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=x-gm-message-state:mime-version:from:date:message-id:subject:to; bh=Subqz+1zLd0wxvPwaavHGiW0HnUyEd24urh8CmTGA7s=; b=qufqZShdjJ4HlPJa0Drv3JkNp/fLlsCfN/VxlHwkdU39YviOR6BywdAxul7f5tpTk8 VoDRDzpZ+LKGQMc6+qwny6pVrwJtg/zx5gvN3cJTUpBgNI/erFGmD8l71kYxV7KGKwMy 6xRgOYnf3Jukef8O12qqkik5Ig46CiCqUMpiqf+PB1nfoh65dd1nxWrTHyEOqJ4sKhtJ k9Elj+/rRvxXva1vDW1IuRLqP5+RWKPHyMA+weWFr678tCBQtEp+WNMHpZS+rMiXsiRh RDIJrYBgqbjwR47lG7QEc+QjjUyQyDzmdBNhdqsbB0eAahPn92+V3+UAtBTDQR3l2Hkt l8ZA==
X-Gm-Message-State: AOAM532blWmNBfcJlCP0l4TxHZRdsAf+OkyHkJIEMgkPhWORTQdwpIo4 o3/wtYoXJLBamh+NlqYfkNqAL8sBUgZxUUbZey3nspRhr90=
X-Google-Smtp-Source: ABdhPJwsamZX8Kk4369nJzAkYwAwdrkRddkkXVTyyfQ7eePuzjNRfiXCcGdY8CNjc1rC726WhqyIqZ6oyd+C7ZnYvII=
X-Received: by 2002:a50:9e47:: with SMTP id z65mr6288213ede.328.1642113678037; Thu, 13 Jan 2022 14:41:18 -0800 (PST)
MIME-Version: 1.0
From: Greg Mirsky <gregimirsky@gmail.com>
Date: Thu, 13 Jan 2022 14:41:06 -0800
Message-ID: <CA+RyBmXiJeH+n583QnKMmUpDkgdUAaEEDxNDAskXrw1vyp4X5g@mail.gmail.com>
To: mpls <mpls@ietf.org>, pals@ietf.org, DetNet WG <detnet@ietf.org>
Content-Type: multipart/alternative; boundary="00000000000075d45a05d57e62e7"
Archived-At: <https://mailarchive.ietf.org/arch/msg/pals/824JXwKtbM8Wq7WkuVtMwleBzm0>
Subject: [Pals] Continuing with my comments on draft-decraene-mpls-slid-encoded-entropy-label-id
X-BeenThere: pals@ietf.org
X-Mailman-Version: 2.1.29
Precedence: list
List-Id: "Pseudowire And LDP-enabled Services dicussion list." <pals.ietf.org>
List-Unsubscribe: <https://www.ietf.org/mailman/options/pals>, <mailto:pals-request@ietf.org?subject=unsubscribe>
List-Archive: <https://mailarchive.ietf.org/arch/browse/pals/>
List-Post: <mailto:pals@ietf.org>
List-Help: <mailto:pals-request@ietf.org?subject=help>
List-Subscribe: <https://www.ietf.org/mailman/listinfo/pals>, <mailto:pals-request@ietf.org?subject=subscribe>
X-List-Received-Date: Thu, 13 Jan 2022 22:41:22 -0000

Hi Bruno, et al.
Thank you for presenting this work at the MPLS Open DT meeting today. Below
please find the summary of my comments and questions with the additional
thoughts that came after we've closed the call. I greatly appreciate the
consideration and opinions of the authors and the group.

   - Compatibility with nodes that support only RFC 6790.
      - If the proposed indicators are used to signal the presence of an
      ISD, that seems to create a problem for an RFC6790-only node as it might
      not be able to process the ISD.
      - If one of the indicators is to be used to signal the presence of
      the extension, that, similarly to the scenario above, might not be
      correctly processed by an RFC6790-only node.
   - Scaling
      - If the proposed method to signal the ancillary data is used in, for
      example, a strict explicit routing environment, the Entropy Label is not
      needed. If that is the case, using the indicators, as described in the
      draft, seems to waste 20 bits in a label element compared to the
mechanism
      proposed in draft-kompella-mpls-mspl4fa.

Regards,
Greg

v2.23.0 | Report a Bug | By Email