Re: [trill] Question of TRILL header definition in "draft-ietf-fine-labeling-01"

Donald Eastlake <d3e3e3@gmail.com> Wed, 11 July 2012 01:44 UTC

Return-Path: <d3e3e3@gmail.com>
X-Original-To: trill@ietfa.amsl.com
Delivered-To: trill@ietfa.amsl.com
Received: from localhost (localhost [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id 2E57911E8079 for <trill@ietfa.amsl.com>; Tue, 10 Jul 2012 18:44:01 -0700 (PDT)
X-Virus-Scanned: amavisd-new at amsl.com
X-Spam-Flag: NO
X-Spam-Score: -102.746
X-Spam-Level:
X-Spam-Status: No, score=-102.746 tagged_above=-999 required=5 tests=[AWL=-0.710, BAYES_00=-2.599, HTML_IMAGE_ONLY_28=1.561, HTML_IMAGE_RATIO_06=0.001, HTML_MESSAGE=0.001, RCVD_IN_DNSWL_LOW=-1, USER_IN_WHITELIST=-100]
Received: from mail.ietf.org ([12.22.58.30]) by localhost (ietfa.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id PDMsZmf1cEPp for <trill@ietfa.amsl.com>; Tue, 10 Jul 2012 18:44:00 -0700 (PDT)
Received: from mail-yw0-f54.google.com (mail-yw0-f54.google.com [209.85.213.54]) by ietfa.amsl.com (Postfix) with ESMTP id 6234411E8072 for <trill@ietf.org>; Tue, 10 Jul 2012 18:44:00 -0700 (PDT)
Received: by yhfs35 with SMTP id s35so965209yhf.27 for <trill@ietf.org>; Tue, 10 Jul 2012 18:44:29 -0700 (PDT)
DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113; h=mime-version:in-reply-to:references:from:date:message-id:subject:to :cc:content-type; bh=0f4wcg/eh5VeoVw8BP8iVdLmmOJ2yqh2Lss3plulPtY=; b=FM+iuvtU7M6gMApJdfkfHbghb4vWb7koh0/Sr4U9oE3GPlHRHCt3nOAMyPSNEn8aex uqzQVgu6bZH4xRbgyw7PjUCZJ2tsMmfn0BPP2NUkBrqIEyDjozmoPFHOwH0JfQvTE4gp x4XZwBGui/JlPpC4u37wSEfBuRLhLXqipFprmqf0dtZrIO24FYa8EDP6I2T7KsC0yY0i iSn2SCrcVpenmGKOG9bpiMerBeYNzsDUehIq5F+ELkqkGcizaW5ZHTnq4qZvcwdzz4BE q9owRvE6REHyyG9dJesqiS+2ZA0adxrnGY8KaIFgE4lKFU/KsxCFvZ6w9+gqpGul+Brp pEiQ==
Received: by 10.50.173.5 with SMTP id bg5mr12851397igc.35.1341971068767; Tue, 10 Jul 2012 18:44:28 -0700 (PDT)
MIME-Version: 1.0
Received: by 10.64.16.227 with HTTP; Tue, 10 Jul 2012 18:44:07 -0700 (PDT)
In-Reply-To: <4A95BA014132FF49AE685FAB4B9F17F63C2DDEB3@dfweml505-mbx>
References: <4A95BA014132FF49AE685FAB4B9F17F63C2DDEB3@dfweml505-mbx>
From: Donald Eastlake <d3e3e3@gmail.com>
Date: Tue, 10 Jul 2012 21:44:07 -0400
Message-ID: <CAF4+nEFDsF6AjZ3GOKCgYDyB6CejLmDHyUYLUR7+uSDy+qScxg@mail.gmail.com>
To: Linda Dunbar <linda.dunbar@huawei.com>
Content-Type: multipart/related; boundary="e89a8f8391d5da4dd904c483fca3"
Cc: "trill@ietf.org" <trill@ietf.org>
Subject: Re: [trill] Question of TRILL header definition in "draft-ietf-fine-labeling-01"
X-BeenThere: trill@ietf.org
X-Mailman-Version: 2.1.12
Precedence: list
List-Id: "Developing a hybrid router/bridge." <trill.ietf.org>
List-Unsubscribe: <https://www.ietf.org/mailman/options/trill>, <mailto:trill-request@ietf.org?subject=unsubscribe>
List-Archive: <http://www.ietf.org/mail-archive/web/trill>
List-Post: <mailto:trill@ietf.org>
List-Help: <mailto:trill-request@ietf.org?subject=help>
List-Subscribe: <https://www.ietf.org/mailman/listinfo/trill>, <mailto:trill-request@ietf.org?subject=subscribe>
X-List-Received-Date: Wed, 11 Jul 2012 01:44:01 -0000

Hi Linda,

On Tue, Jul 10, 2012 at 3:38 PM, Linda Dunbar <linda.dunbar@huawei.com>wrote:

>  Donald, ****
>
> ** **
>
> The Figure 2  in RFC 6325 shows that “TRILL Header” and “Inner Ethernet
> Header” are two separate fields. The Figure 5 of RFC6325 continues the view
> with “TRILL Header”  only including the fields of:****
>
> ****
>
> ** **
>
> But on page 5 of  “draft-ietf-fine-labeling-01”, the TRILL frame figure
> implies that TRILL Header includes the “Inner.MacDA” and “Inner.MacSA”. **
> **
>
> ** **
>
> ** **
>
> does the “Native Payload” in this figure include “Inner MAC-DA” and “inner
> MAC-SA”?
>

No.

RFC 6325, the current IETF base protocol standard takes an IETF
"encapsulation" point of view. The current fine grained labeling draft
takes a more "sequence of tags" point of view. However, there is no
difference in the bits on the wire or behavior between the two. Just a
mental move of the end of the TRILL Header.

Thanks,
Donald
=============================
 Donald E. Eastlake 3rd   +1-508-333-2270 (cell)
 155 Beaver Street, Milford, MA 01757 USA
 d3e3e3@gmail.com


> Thanks, ****
>
> Linda Dunbar****
>