Re: [lisp] Capabilities Type LCAF - a proposal

Sander Steffann <sander@steffann.nl> Thu, 12 September 2013 22:06 UTC

Return-Path: <sander@steffann.nl>
X-Original-To: lisp@ietfa.amsl.com
Delivered-To: lisp@ietfa.amsl.com
Received: from localhost (localhost [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id C9C5521E81F4 for <lisp@ietfa.amsl.com>; Thu, 12 Sep 2013 15:06:02 -0700 (PDT)
X-Virus-Scanned: amavisd-new at amsl.com
X-Spam-Flag: NO
X-Spam-Score: -2.599
X-Spam-Level:
X-Spam-Status: No, score=-2.599 tagged_above=-999 required=5 tests=[BAYES_00=-2.599]
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 7ZLZIH7Za5Uq for <lisp@ietfa.amsl.com>; Thu, 12 Sep 2013 15:06:01 -0700 (PDT)
Received: from mail.sintact.nl (mail.sintact.nl [IPv6:2001:9e0:803::6]) by ietfa.amsl.com (Postfix) with ESMTP id A19A121E80DF for <lisp@ietf.org>; Thu, 12 Sep 2013 15:06:01 -0700 (PDT)
Received: from localhost (localhost [127.0.0.1]) by mail.sintact.nl (Postfix) with ESMTP id 9C4643A; Fri, 13 Sep 2013 00:05:59 +0200 (CEST)
X-Virus-Scanned: Debian amavisd-new at mail.sintact.nl
Received: from mail.sintact.nl ([127.0.0.1]) by localhost (mail.sintact.nl [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id 8Ch9FlAnLo9c; Fri, 13 Sep 2013 00:05:57 +0200 (CEST)
Received: from [127.0.0.1] (cypher.steffann.nl [94.142.242.216]) by mail.sintact.nl (Postfix) with ESMTPSA id 772E516; Fri, 13 Sep 2013 00:05:57 +0200 (CEST)
Content-Type: text/plain; charset="us-ascii"
Mime-Version: 1.0 (Mac OS X Mail 6.5 \(1508\))
From: Sander Steffann <sander@steffann.nl>
In-Reply-To: <5FB6E5C2-AF6A-415A-8DE4-5958961A6661@gmail.com>
Date: Fri, 13 Sep 2013 02:06:02 +0400
Content-Transfer-Encoding: quoted-printable
Message-Id: <7778D231-CF61-4BFE-8657-48CB1190224A@steffann.nl>
References: <5FB6E5C2-AF6A-415A-8DE4-5958961A6661@gmail.com>
To: Dino Farinacci <farinacci@gmail.com>
X-Mailer: Apple Mail (2.1508)
Cc: "lisp@ietf.org list" <lisp@ietf.org>
Subject: Re: [lisp] Capabilities Type LCAF - a proposal
X-BeenThere: lisp@ietf.org
X-Mailman-Version: 2.1.12
Precedence: list
List-Id: List for the discussion of the Locator/ID Separation Protocol <lisp.ietf.org>
List-Unsubscribe: <https://www.ietf.org/mailman/options/lisp>, <mailto:lisp-request@ietf.org?subject=unsubscribe>
List-Archive: <http://www.ietf.org/mail-archive/web/lisp>
List-Post: <mailto:lisp@ietf.org>
List-Help: <mailto:lisp-request@ietf.org?subject=help>
List-Subscribe: <https://www.ietf.org/mailman/listinfo/lisp>, <mailto:lisp-request@ietf.org?subject=subscribe>
X-List-Received-Date: Thu, 12 Sep 2013 22:06:02 -0000

Hi Dino,

> I would propose that the Capabilities Type LCAF be encoded as a bit-string. Where each bit position indicates the LCAF Type value. We would have 2 fields, an EID field and a RLOC field so it can be conveyed which Types are supported for EID encoded fields or RLOC encoded fields in any LISP control message.
> 
> [...]
> 
> Comments?

Will a bit string be able to provide enough detail? LCAF types can be combined in many ways...

> If people are interested I can draft up the details for the -03 version. Or if you think we should post the -03 version just with the current changes, I can do that.

I would like to see it in -03

> And also comment if you think we should go with the JSON Data Model Type for -03 or put it into -04 with perhaps this Capabilities LCAF.

Also for -03 I would say. This will very probably not be the final draft, so why publish -03 now when we know that this will be added to -04 :-)

Thanks,
Sander.