IETF Logo Mail Archive

Re: [Ila] LISP for ILA

"Alberto Rodriguez Natal (natal)" <natal@cisco.com> Tue, 13 March 2018 19:37 UTC

Return-Path: <natal@cisco.com>
X-Original-To: ila@ietfa.amsl.com
Delivered-To: ila@ietfa.amsl.com
Received: from localhost (localhost [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id 5098812D7E5; Tue, 13 Mar 2018 12:37:26 -0700 (PDT)
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_H4=-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 nWlBHHwoFjNu; Tue, 13 Mar 2018 12:37:24 -0700 (PDT)
Received: from alln-iport-8.cisco.com (alln-iport-8.cisco.com [173.37.142.95]) (using TLSv1.2 with cipher DHE-RSA-SEED-SHA (128/128 bits)) (No client certificate requested) by ietfa.amsl.com (Postfix) with ESMTPS id 61682124207; Tue, 13 Mar 2018 12:37:24 -0700 (PDT)
DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=cisco.com; i=@cisco.com; l=1290; q=dns/txt; s=iport; t=1520969844; x=1522179444; h=from:to:cc:subject:date:message-id:references: in-reply-to:content-id:content-transfer-encoding: mime-version; bh=OJdUkcgKlKGwQfrIeiEqTKPW9FCwJq6q2u0xXBEDpko=; b=Vq0ES6wE9CvvABujFfVkTAoZlxCegxH/rpY6HW9l0W02VcFJim4PZVEE 5qgknXmvq31B/MlB7OPLLzhUtE0kLCewTwyfb2nNuRIdVVWZH9C4s1sR+ 2f3tnVgs97Sx6VkVU8FRlzG5NNIEHf1/wHP1Pex/gdtbuwbZIVcQ/hpOc Y=;
X-IronPort-Anti-Spam-Filtered: true
X-IronPort-Anti-Spam-Result: A0DnAABQKKha/51dJa1dGQEBAQEBAQEBAQEBAQcBAQEBAYNQgVUoCoNGih2NdIFbgT+HJI0NghUKhSUCGoMGITQYAQIBAQEBAQECayeFJAYjEUUQAgEIGgImAgICHxEVEAIEAQ0FhQADFawQgiaHJQ2BMIIKgQ2EKIIugzwpDIJ5gmqCN4MIMIIyBJolMQkCjSuDN4FjjH6HdYI+hnACERMBgSsBHjiBUnAVZAGCGIRHd44pgRgBAQE
X-IronPort-AV: E=Sophos;i="5.47,466,1515456000"; d="scan'208";a="83004651"
Received: from rcdn-core-6.cisco.com ([173.37.93.157]) by alln-iport-8.cisco.com with ESMTP/TLS/DHE-RSA-AES256-GCM-SHA384; 13 Mar 2018 19:37:23 +0000
Received: from XCH-ALN-019.cisco.com (xch-aln-019.cisco.com [173.36.7.29]) by rcdn-core-6.cisco.com (8.14.5/8.14.5) with ESMTP id w2DJbNoo024468 (version=TLSv1/SSLv3 cipher=AES256-SHA bits=256 verify=FAIL); Tue, 13 Mar 2018 19:37:23 GMT
Received: from xch-aln-005.cisco.com (173.36.7.15) by XCH-ALN-019.cisco.com (173.36.7.29) with Microsoft SMTP Server (TLS) id 15.0.1320.4; Tue, 13 Mar 2018 14:37:22 -0500
Received: from xch-aln-005.cisco.com ([173.36.7.15]) by XCH-ALN-005.cisco.com ([173.36.7.15]) with mapi id 15.00.1320.000; Tue, 13 Mar 2018 14:37:22 -0500
From: "Alberto Rodriguez Natal (natal)" <natal@cisco.com>
To: Dino Farinacci <farinacci@gmail.com>, Tom Herbert <tom@quantonium.net>
CC: "Fabio Maino (fmaino)" <fmaino@cisco.com>, "ila@ietf.org" <ila@ietf.org>, "lisp@ietf.org" <lisp@ietf.org>, Albert Cabellos <acabello@ac.upc.edu>, "Vina Ermagan (vermagan)" <vermagan@cisco.com>
Thread-Topic: [Ila] LISP for ILA
Thread-Index: AQHTs4N8SaQwoGnN/EueWlx2YLMdsaPCxXuAgAAE/oCAC7JiAA==
Date: Tue, 13 Mar 2018 19:37:22 +0000
Message-ID: <1D4F6CE9-AF74-4519-B51E-8395556D377F@cisco.com>
References: <F1093230-C087-4168-9C5F-8DA7AB677677@cisco.com> <CAPDqMer58nxEixtH=JuZh9WgM0xKkEQYEjwZ6zg3wTjD76gOHQ@mail.gmail.com> <CE270206-3436-4753-8CF5-E6E928C38238@gmail.com>
In-Reply-To: <CE270206-3436-4753-8CF5-E6E928C38238@gmail.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: [10.156.163.12]
Content-Type: text/plain; charset="utf-8"
Content-ID: <CD2EAEDE23AAD0488D35CE91C235018C@emea.cisco.com>
Content-Transfer-Encoding: base64
MIME-Version: 1.0
Archived-At: <https://mailarchive.ietf.org/arch/msg/ila/jTTseetX4j-RLOBMiHWqu-K9ixY>
Subject: Re: [Ila] LISP for ILA
X-BeenThere: ila@ietf.org
X-Mailman-Version: 2.1.22
Precedence: list
List-Id: Identifier Locator Addressing <ila.ietf.org>
List-Unsubscribe: <https://www.ietf.org/mailman/options/ila>, <mailto:ila-request@ietf.org?subject=unsubscribe>
List-Archive: <https://mailarchive.ietf.org/arch/browse/ila/>
List-Post: <mailto:ila@ietf.org>
List-Help: <mailto:ila-request@ietf.org?subject=help>
List-Subscribe: <https://www.ietf.org/mailman/listinfo/ila>, <mailto:ila-request@ietf.org?subject=subscribe>
X-List-Received-Date: Tue, 13 Mar 2018 19:37:26 -0000

Dino,

On 3/5/18, 5:00 PM, "Dino Farinacci" <farinacci@gmail.com> wrote:
    
    My comment about this spec is that you really don’t need a LCAF format to format the addresses. You can use AFI=2 and use IPv6 format. That will reduce the size.
    
Using IPv6 format is something we considered while writing the draft. We went the LCAF route to have an explicit way to (1) distinguish ILA Identifiers/Locators from other addresses in the Mapping System, (2) specify the Identifier/Locator length and (3) include metadata bits. However, for simple scenarios (only ILA domain, no overlapping with non-local addresses, no multiple SIR prefixes, fixed Identifier length, no need for metadata bits, etc) things could work with AFI=2 format. If the rough consensus from the WG(s) is that a plain AFI=2 format is sufficient, we can certainly update the draft. I would like to know the opinion of others on this. 

Alberto

v2.23.0 | Report a Bug | By Email