[nvo3] a question about bundled service in draft-ietf-bess-evpn-overlay-08

Anoop Ghanwani <anoop@alumni.duke.edu> Wed, 19 July 2017 00:01 UTC

Return-Path: <ghanwani@gmail.com>
X-Original-To: nvo3@ietfa.amsl.com
Delivered-To: nvo3@ietfa.amsl.com
Received: from localhost (localhost [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id E52C1131B15 for <nvo3@ietfa.amsl.com>; Tue, 18 Jul 2017 17:01:27 -0700 (PDT)
X-Virus-Scanned: amavisd-new at amsl.com
X-Spam-Flag: NO
X-Spam-Score: -2.399
X-Spam-Level:
X-Spam-Status: No, score=-2.399 tagged_above=-999 required=5 tests=[BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, FREEMAIL_FORGED_FROMDOMAIN=0.199, FREEMAIL_FROM=0.001, HEADER_FROM_DIFFERENT_DOMAINS=0.001, HTML_MESSAGE=0.001, RCVD_IN_DNSWL_LOW=-0.7, 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 c7atk6fAmrY1 for <nvo3@ietfa.amsl.com>; Tue, 18 Jul 2017 17:01:26 -0700 (PDT)
Received: from mail-qk0-x232.google.com (mail-qk0-x232.google.com [IPv6:2607:f8b0:400d:c09::232]) (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 0CD80131B23 for <nvo3@ietf.org>; Tue, 18 Jul 2017 17:01:25 -0700 (PDT)
Received: by mail-qk0-x232.google.com with SMTP id t2so27233062qkc.1 for <nvo3@ietf.org>; Tue, 18 Jul 2017 17:01:25 -0700 (PDT)
DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=mime-version:sender:from:date:message-id:subject:to; bh=eIdnqtRD9Wv8PzYHEjc84EfBL0sjf9C6L13R1TSpc/U=; b=u/dnShdFEjChiuxP/0Fz3uAudb+ZEXGySLaSmxq6S7yeKzz0BsKVqeifgAVsnchPfW Ru4upniTo+U/3p1xHMqtaBWuGI0D/l0oiZ72PzKLoMCa4AOpSbYCPKpw682LbtVN0Icq oM11wx9LOrM2Pbt3V9ecBsUhkxCaGMbGPru0nZzrrWm/D6ZFk3hBCvxHxQgGNte9V1px vqsGrKAfv19cJDRUm/O2bYsQauTKpt9Q9WGZO0NP8UwJI10smPt2ck0pUAGwZoXLzJRD BvFTIHQaMK7aD44JYA/1SUpnQFywlvXTkEu2pHXD41BseeoqE4i4+N4tbi/kRHAD71mW KT7g==
X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:mime-version:sender:from:date:message-id:subject :to; bh=eIdnqtRD9Wv8PzYHEjc84EfBL0sjf9C6L13R1TSpc/U=; b=L1wzQDzH0NdKZfNywuTSWpUfEsMhU/c8MZiuDFFIF0zaCXXVI3/E4wQd2gGyyWnKZB rt98hlHfT3Kt+O9JRJT3ffotycQ1FJXDAmRnQ5PoZaMvkbpe8b6Q3Ujoo8gbRNaSPamO DG5ZJt8ooWE2EYCJK3JNwddAzYD3opzcXWkwK5kHRITGyzIi/qChiE9uPNsRa2wdlMDn JuEGia6dObsDA3pq1wS3d4n0gTQF4hZCyVkyQqYnhlziCYbhMK2Rz/QETNeF3rlsGaxe RN5g7Ao9DY01qhE9M84/8BplKFWGhKo0H9YQT8mjo+wRqFbbyI9+SGwp/4m7NDiqf34K mEzw==
X-Gm-Message-State: AIVw1134wek7a04gMnLPxhYv1w+AGGun/MUmWNSqcnHPUDiDTFoQrbYP cfA+O5MIXtmfWKY8mD6CREHHSrmD2hrk2c0=
X-Received: by 10.55.122.68 with SMTP id v65mr80169qkc.225.1500422483935; Tue, 18 Jul 2017 17:01:23 -0700 (PDT)
MIME-Version: 1.0
Sender: ghanwani@gmail.com
Received: by 10.200.57.225 with HTTP; Tue, 18 Jul 2017 17:01:22 -0700 (PDT)
From: Anoop Ghanwani <anoop@alumni.duke.edu>
Date: Tue, 18 Jul 2017 17:01:22 -0700
X-Google-Sender-Auth: kd_B0jfFyp1poRBMh-rkbiqjJ3E
Message-ID: <CA+-tSzyEyVZbRRvPepb_zn-yAfN_NM-D9W_zDOu0hb2EF5i+_Q@mail.gmail.com>
To: "nvo3@ietf.org" <nvo3@ietf.org>
Content-Type: multipart/alternative; boundary="94eb2c05de682b08b10554a055bd"
Archived-At: <https://mailarchive.ietf.org/arch/msg/nvo3/cd0hOfb966ROcL4t8JCrBD28bBg>
Subject: [nvo3] a question about bundled service in draft-ietf-bess-evpn-overlay-08
X-BeenThere: nvo3@ietf.org
X-Mailman-Version: 2.1.22
Precedence: list
List-Id: "Network Virtualization Overlays \(NVO3\) Working Group" <nvo3.ietf.org>
List-Unsubscribe: <https://www.ietf.org/mailman/options/nvo3>, <mailto:nvo3-request@ietf.org?subject=unsubscribe>
List-Archive: <https://mailarchive.ietf.org/arch/browse/nvo3/>
List-Post: <mailto:nvo3@ietf.org>
List-Help: <mailto:nvo3-request@ietf.org?subject=help>
List-Subscribe: <https://www.ietf.org/mailman/listinfo/nvo3>, <mailto:nvo3-request@ietf.org?subject=subscribe>
X-List-Received-Date: Wed, 19 Jul 2017 00:01:28 -0000

This is what the draft says about bundled service:
https://tools.ietf.org/html/draft-ietf-bess-evpn-overlay-08#section-4
>>>

8) When a 802.1Q interface is used between a CE and a PE, each of the
   VLAN ID (VID) on that interface can be mapped onto a bridge table
   (for upto 4094 such bridge tables). All these bridge tables may be
   mapped onto a single MAC-VRF (in case of VLAN-aware bundle service).

>>>

So it sounds like 1:1 is supported (that's the straightforward case where
the inner VLAD ID is stripped from the encap'ed packet) and All:1 is
supported (i.e. the service is blind to the incoming tag and just preserves
it as is, potentially with normalization if translation is required).

What about the case for n:1 where I want some subset of VLAN IDs coming in
on a port to map to VNID1, and another subset map to VNID2?  Is that
explicitly disallowed?  If so, why?

Thanks,
Anoop