IETF Logo Mail Archive

Re: [Dcrouting] [Lsvr] A comment on draft-keyupate-idr-bgp-spf

"Acee Lindem (acee)" <acee@cisco.com> Fri, 05 January 2018 17:39 UTC

Return-Path: <acee@cisco.com>
X-Original-To: dcrouting@ietfa.amsl.com
Delivered-To: dcrouting@ietfa.amsl.com
Received: from localhost (localhost [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id 2926A12708C; Fri, 5 Jan 2018 09:39:29 -0800 (PST)
X-Virus-Scanned: amavisd-new at amsl.com
X-Spam-Flag: NO
X-Spam-Score: -14.53
X-Spam-Level:
X-Spam-Status: No, score=-14.53 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_H4=-0.01, RCVD_IN_MSPIKE_WL=-0.01, SPF_PASS=-0.001, T_RP_MATCHES_RCVD=-0.01, URIBL_BLOCKED=0.001, 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 7yKif4XRnOsu; Fri, 5 Jan 2018 09:39:27 -0800 (PST)
Received: from alln-iport-1.cisco.com (alln-iport-1.cisco.com [173.37.142.88]) (using TLSv1.2 with cipher DHE-RSA-SEED-SHA (128/128 bits)) (No client certificate requested) by ietfa.amsl.com (Postfix) with ESMTPS id 04F76126BFD; Fri, 5 Jan 2018 09:39:26 -0800 (PST)
DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=cisco.com; i=@cisco.com; l=1988; q=dns/txt; s=iport; t=1515173967; x=1516383567; h=from:to:cc:subject:date:message-id:references: in-reply-to:content-id:content-transfer-encoding: mime-version; bh=gmuzNwp84igLTQhU/+ITevnFKeR6255ZkV/RqtLimnY=; b=A8R5J5lOAJVlibR2N1e3VKtlF6Z63g5NMUaqEVjpEnrBeQZ4+Z6W7laE u9pqStQp8+/mtnY+rMvWVdsT57abcsYCDMa2DLoAb1PQinCy5TE84rJJL 8tvVz/a6q0Le/RezgDqBUaKgSO07K1KSLM3w1CsZeuNZGKM8J09djrzFU I=;
X-IronPort-Anti-Spam-Filtered: true
X-IronPort-Anti-Spam-Result: A0CJAwCIt09a/4YNJK1dGQEBAQEBAQEBAQEBAQcBAQEBAYM+ZnQnB4QAmQ6CApk/ChgLhElPAhqEF0MUAQEBAQEBAQEBayiFJAEBAQMBASEROgsQAgEIGAICJgICAiULFRACBAENBYovELAugieKPwEBAQEBAQEBAQEBAQEBAQEBAQEBARgFgQ+DBYIVgz+DLoMvAYFugxeCZQWjXAKVOpQGlmYCERkBgTsBNiKBUG8VPYIqhFd4iESBFwEBAQ
X-IronPort-AV: E=Sophos;i="5.46,319,1511827200"; d="scan'208";a="52791289"
Received: from alln-core-12.cisco.com ([173.36.13.134]) by alln-iport-1.cisco.com with ESMTP/TLS/DHE-RSA-AES256-GCM-SHA384; 05 Jan 2018 17:39:26 +0000
Received: from XCH-RTP-011.cisco.com (xch-rtp-011.cisco.com [64.101.220.151]) by alln-core-12.cisco.com (8.14.5/8.14.5) with ESMTP id w05HdPr6018341 (version=TLSv1/SSLv3 cipher=AES256-SHA bits=256 verify=FAIL); Fri, 5 Jan 2018 17:39:25 GMT
Received: from xch-rtp-015.cisco.com (64.101.220.155) by XCH-RTP-011.cisco.com (64.101.220.151) with Microsoft SMTP Server (TLS) id 15.0.1320.4; Fri, 5 Jan 2018 12:39:24 -0500
Received: from xch-rtp-015.cisco.com ([64.101.220.155]) by XCH-RTP-015.cisco.com ([64.101.220.155]) with mapi id 15.00.1320.000; Fri, 5 Jan 2018 12:39:24 -0500
From: "Acee Lindem (acee)" <acee@cisco.com>
To: "Joel M. Halpern" <jmh@joelhalpern.com>, Randy Bush <randy@psg.com>, Keyur Patel <keyur@arrcus.com>
CC: Xuxiaohu <xuxiaohu@huawei.com>, "dcrouting@ietf.org" <dcrouting@ietf.org>, "lsvr@ietf.org" <lsvr@ietf.org>, Alvaro Retana <aretana.ietf@gmail.com>
Thread-Topic: [Dcrouting] [Lsvr] A comment on draft-keyupate-idr-bgp-spf
Thread-Index: AQHThKSXqqGIEB8ETEyTAt2rCKVfFqNljuKA
Date: Fri, 05 Jan 2018 17:39:24 +0000
Message-ID: <D6752221.E886A%acee@cisco.com>
References: <0DB89F21-8E32-46A7-A2B7-B79977948455@arrcus.com> <m2373nocer.wl-randy@psg.com> <D6723964.E82B2%acee@cisco.com> <dd81cd67-4aa8-c322-d447-532943abbe89@joelhalpern.com>
In-Reply-To: <dd81cd67-4aa8-c322-d447-532943abbe89@joelhalpern.com>
Accept-Language: en-US
Content-Language: en-US
X-MS-Has-Attach:
X-MS-TNEF-Correlator:
x-ms-exchange-messagesentrepresentingtype: 1
x-ms-exchange-transport-fromentityheader: Hosted
x-originating-ip: [10.116.152.198]
Content-Type: text/plain; charset="utf-8"
Content-ID: <04B134D51A26024F95A5B9A7412D6018@emea.cisco.com>
Content-Transfer-Encoding: base64
MIME-Version: 1.0
Archived-At: <https://mailarchive.ietf.org/arch/msg/dcrouting/j_OzBYPomJ2Oah_j2HWPF1QAqo4>
Subject: Re: [Dcrouting] [Lsvr] A comment on draft-keyupate-idr-bgp-spf
X-BeenThere: dcrouting@ietf.org
X-Mailman-Version: 2.1.22
Precedence: list
List-Id: "Routing in the Data Center: discussions about problems, requirements and potential solutions." <dcrouting.ietf.org>
List-Unsubscribe: <https://www.ietf.org/mailman/options/dcrouting>, <mailto:dcrouting-request@ietf.org?subject=unsubscribe>
List-Archive: <https://mailarchive.ietf.org/arch/browse/dcrouting/>
List-Post: <mailto:dcrouting@ietf.org>
List-Help: <mailto:dcrouting-request@ietf.org?subject=help>
List-Subscribe: <https://www.ietf.org/mailman/listinfo/dcrouting>, <mailto:dcrouting-request@ietf.org?subject=subscribe>
X-List-Received-Date: Fri, 05 Jan 2018 17:39:29 -0000

Hi Joel, 

Yes - this is one of the areas of complexity when implementing BGP SPF. It
is the reason why we allocate a separate SAFI from normal BGP-LS state
distribution. 

Thanks,
Acee 

On 1/3/18, 10:07 AM, "Dcrouting on behalf of Joel M. Halpern"
<dcrouting-bounces@ietf.org on behalf of jmh@joelhalpern.com> wrote:

>It seems to me that having two different BGP decision processes
>available is going to have significant impact on achieving consistency
>so taht routing actually converges. I suspect it willnot take much to
>define what choices are stable and effective.
>
>Leaving out any comments on how to make this (coexistence) work seems a
>mistake.
>
>Yours,
>Joel
>
>On 1/3/18 7:40 AM, Acee Lindem (acee) wrote:
>> Agreed. Thanks Randy!
>> 
>> Plan to refresh the draft this week.
>> 
>> Acee
>> 
>> On 1/2/18, 10:21 PM, "Randy Bush" <randy@psg.com> wrote:
>> 
>>>> Furthermore, we could chose to consider such an interaction as a
>>>> matter of local policy (implementation specific).
>>>
>>> pedantry: s/implementation/configuration/.  i.e. op chooses, not
>>>vendor.
>>>
>>> randy
>> 
>> _______________________________________________
>> Dcrouting mailing list
>> Dcrouting@ietf.org
>> https://www.ietf.org/mailman/listinfo/dcrouting
>> 
>
>_______________________________________________
>Dcrouting mailing list
>Dcrouting@ietf.org
>https://www.ietf.org/mailman/listinfo/dcrouting

v2.23.0 | Report a Bug | By Email