Re: [bess] Request for WG call for draft-sajassi-bess-evpn-vpws-fxc-02.txt

"Ali Sajassi (sajassi)" <sajassi@cisco.com> Fri, 16 February 2018 19:04 UTC

Return-Path: <sajassi@cisco.com>
X-Original-To: bess@ietfa.amsl.com
Delivered-To: bess@ietfa.amsl.com
Received: from localhost (localhost [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id 84A3E126CE8; Fri, 16 Feb 2018 11:04:06 -0800 (PST)
X-Virus-Scanned: amavisd-new at amsl.com
X-Spam-Flag: NO
X-Spam-Score: -14.531
X-Spam-Level:
X-Spam-Status: No, score=-14.531 tagged_above=-999 required=5 tests=[BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, RCVD_IN_DNSWL_HI=-5, RCVD_IN_MSPIKE_H3=-0.01, RCVD_IN_MSPIKE_WL=-0.01, SPF_PASS=-0.001, T_RP_MATCHES_RCVD=-0.01, USER_IN_DEF_DKIM_WL=-7.5] autolearn=ham autolearn_force=no
Authentication-Results: ietfa.amsl.com (amavisd-new); dkim=pass (1024-bit key) header.d=cisco.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 6fSEOK9AEhAY; Fri, 16 Feb 2018 11:04:04 -0800 (PST)
Received: from alln-iport-6.cisco.com (alln-iport-6.cisco.com [173.37.142.93]) (using TLSv1.2 with cipher DHE-RSA-SEED-SHA (128/128 bits)) (No client certificate requested) by ietfa.amsl.com (Postfix) with ESMTPS id 648EB126C2F; Fri, 16 Feb 2018 11:04:04 -0800 (PST)
DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=cisco.com; i=@cisco.com; l=3014; q=dns/txt; s=iport; t=1518807844; x=1520017444; h=from:to:cc:subject:date:message-id:references: in-reply-to:content-id:content-transfer-encoding: mime-version; bh=w9Cl0Yyslrhh2N+a1ugnpuEwpjyZy8Ss4qh5K47yCiE=; b=G/S4Px37UAC5WgDDpfimmAnWVKUIFPO656XMsn7zadpO66k82u4SDm4L dy3H7KUx314JuF+GoxUnmP6ZIrVz5+SADKqYCpznzrZYUvUYiCn/RToJd zvxbpuWw7VWOKZZKZxQdsAhNJwtJKbOyom525bVXbTzif8pJAJfFpYgWf c=;
X-IronPort-Anti-Spam-Filtered: true
X-IronPort-Anti-Spam-Result: A0AsAQDkKoda/5pdJa1cGQEBAQEBAQEBAQEBAQcBAQEBAYNPZnAoCoNKiiWOBYICgReWSYIWChgLhRgCGoIsVBgBAgEBAQEBAQJrKIUkAQEBAwEBGwYROgsQAgEIGAICJgICAiULFRACBA4FiiEQrSuCJ4h/ghMBAQEBAQEBAQEBAQEBAQEBAQEBAQEYBYEPg3iCKIM/KYMFgTCCAAEBggiDADGCNAWkNQkClgiCIIYqi35wiiaMXAIRGQGBOwEfOYFRcBU6KgGCGIR2eI0NgRkBAQE
X-IronPort-AV: E=Sophos;i="5.46,520,1511827200"; d="scan'208";a="71342700"
Received: from rcdn-core-3.cisco.com ([173.37.93.154]) by alln-iport-6.cisco.com with ESMTP/TLS/DHE-RSA-AES256-GCM-SHA384; 16 Feb 2018 19:03:50 +0000
Received: from XCH-RTP-003.cisco.com (xch-rtp-003.cisco.com [64.101.220.143]) by rcdn-core-3.cisco.com (8.14.5/8.14.5) with ESMTP id w1GJ3oVZ028426 (version=TLSv1/SSLv3 cipher=AES256-SHA bits=256 verify=FAIL); Fri, 16 Feb 2018 19:03:50 GMT
Received: from xch-rtp-005.cisco.com (64.101.220.145) by XCH-RTP-003.cisco.com (64.101.220.143) with Microsoft SMTP Server (TLS) id 15.0.1320.4; Fri, 16 Feb 2018 14:03:49 -0500
Received: from xch-rtp-005.cisco.com ([64.101.220.145]) by XCH-RTP-005.cisco.com ([64.101.220.145]) with mapi id 15.00.1320.000; Fri, 16 Feb 2018 14:03:49 -0500
From: "Ali Sajassi (sajassi)" <sajassi@cisco.com>
To: Marco Marzetti <marco@lamehost.it>
CC: Martin Vigoureux <martin.vigoureux@nokia.com>, "bess-chairs@ietf.org" <bess-chairs@ietf.org>, "bess@ietf.org" <bess@ietf.org>
Thread-Topic: [bess] Request for WG call for draft-sajassi-bess-evpn-vpws-fxc-02.txt
Thread-Index: AQHTpHVxeBXHa14yPUGQ8/9Un6WqbaOivMMA///GhACABK+EAIAAA78A
Date: Fri, 16 Feb 2018 19:03:49 +0000
Message-ID: <A5A666CE-29BF-4C37-BF00-2A8E136269A2@cisco.com>
References: <3DCA246E-C82D-42E1-847B-8EB4C4D5383B@cisco.com> <2bfef47c-4e07-4769-9151-3daa05817b2f@nokia.com> <DE6009DE-3B96-48D9-A77C-D72D278F9AC6@cisco.com> <CAO367rX0E4JU1tXoSOa3qC1MKLM-WNLMFX+YVpKwNr2pvZJgMg@mail.gmail.com>
In-Reply-To: <CAO367rX0E4JU1tXoSOa3qC1MKLM-WNLMFX+YVpKwNr2pvZJgMg@mail.gmail.com>
Accept-Language: en-US
Content-Language: en-US
X-MS-Has-Attach:
X-MS-TNEF-Correlator:
user-agent: Microsoft-MacOutlook/10.9.0.180116
x-ms-exchange-messagesentrepresentingtype: 1
x-ms-exchange-transport-fromentityheader: Hosted
x-originating-ip: [10.19.76.52]
Content-Type: text/plain; charset="utf-8"
Content-ID: <22CD4DD9F6B6CD4A968AAF85CFCCB44D@emea.cisco.com>
Content-Transfer-Encoding: base64
MIME-Version: 1.0
Archived-At: <https://mailarchive.ietf.org/arch/msg/bess/ykZjh1eAryFN2pURUui28CBEHSM>
Subject: Re: [bess] Request for WG call for draft-sajassi-bess-evpn-vpws-fxc-02.txt
X-BeenThere: bess@ietf.org
X-Mailman-Version: 2.1.22
Precedence: list
List-Id: BGP-Enabled ServiceS working group discussion list <bess.ietf.org>
List-Unsubscribe: <https://www.ietf.org/mailman/options/bess>, <mailto:bess-request@ietf.org?subject=unsubscribe>
List-Archive: <https://mailarchive.ietf.org/arch/browse/bess/>
List-Post: <mailto:bess@ietf.org>
List-Help: <mailto:bess-request@ietf.org?subject=help>
List-Subscribe: <https://www.ietf.org/mailman/listinfo/bess>, <mailto:bess-request@ietf.org?subject=subscribe>
X-List-Received-Date: Fri, 16 Feb 2018 19:04:07 -0000

With FXC, VLANs from different ports are muxed onto a single service tunnel (e.g., single PW). So, VLANs from one port on one PE can be spread on different ports on the remote PE. Furthermore, only some of the the VLANs from different ports on remote PE are multiplexed onto that service tunnel. So, for FXC, when there is a failure on the local port, you cannot take down the corresponding ports on the remote PE.

Cheers,
Ali

On 2/16/18, 2:50 AM, "Marco Marzetti" <marco@lamehost.it> wrote:

    Hello,
    
    This question is not strictly related to this draft, but to VPWS in
    general and may sound naive.
    So *please* pardon me.
    
    Shouldn't the port on the remote PE be turned down when its
    equivalents on local PEs do the same?
    
    This is something you can find on L2VPN VPWS signaled by LDP.
    When local AC goes down the event is signaled via LDP to the other end
    which in turn soft-shut the port.
    
    I wonder if the same behavior could be replicated by EVPN VPWS.
    In that case remote PE(s) would have to react to BGP prefix withdrawals.
    
    Thank you
    
    Regards
    
    On Tue, Feb 13, 2018 at 8:17 PM, Ali Sajassi (sajassi)
    <sajassi@cisco.com> wrote:
    >
    > It has already been updated and the rev02 has been checked in.
    >
    > Regards,
    > Ali
    >
    > On 2/13/18, 6:43 AM, "Martin Vigoureux" <martin.vigoureux@nokia.com> wrote:
    >
    >     ok, let us know when you've updated it, we'll call it for adoption fater
    >     that.
    >
    >     -m
    >
    >     Le 2018-02-13 à 3:50, Ali Sajassi (sajassi) a écrit :
    >     > Hi Martin, Stephane:
    >     >
    >     > This is one of the draft in my plate that I needed to update and ask for
    >     > a WG call. It has already been implemented by number of vendors and has
    >     > had pretty good consensus.
    >     >
    >     > Regards,
    >     >
    >     > Ali
    >     >
    >
    >
    > _______________________________________________
    > BESS mailing list
    > BESS@ietf.org
    > https://www.ietf.org/mailman/listinfo/bess
    
    
    
    -- 
    Marco