Re: [Roll] [roll] #88: Data option and ULP
Mukul Goyal <mukul@uwm.edu> Sun, 08 April 2012 15:59 UTC
Return-Path: <prvs=4385599de=mukul@uwm.edu>
X-Original-To: roll@ietfa.amsl.com
Delivered-To: roll@ietfa.amsl.com
Received: from localhost (localhost [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id 0D5A721F85B4 for <roll@ietfa.amsl.com>; Sun, 8 Apr 2012 08:59:13 -0700 (PDT)
X-Virus-Scanned: amavisd-new at amsl.com
X-Spam-Flag: NO
X-Spam-Score: -5.99
X-Spam-Level:
X-Spam-Status: No, score=-5.99 tagged_above=-999 required=5 tests=[AWL=0.609, BAYES_00=-2.599, RCVD_IN_DNSWL_MED=-4]
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 EQLLF53xW50M for <roll@ietfa.amsl.com>; Sun, 8 Apr 2012 08:59:12 -0700 (PDT)
Received: from ip2mta.uwm.edu (ip2mta.uwm.edu [129.89.7.20]) by ietfa.amsl.com (Postfix) with ESMTP id 619C421F851E for <roll@ietf.org>; Sun, 8 Apr 2012 08:59:12 -0700 (PDT)
X-IronPort-Anti-Spam-Filtered: true
X-IronPort-Anti-Spam-Result: Ap0EAIO1gU9/AAAB/2dsb2JhbABEhWa2TwEBBSNWDA8RBAEBAwINGQJRCBmIDgunQIh1iQmBL4wHggyBGASIWo0SgRGPJYMF
Received: from localhost (localhost.localdomain [127.0.0.1]) by mta01.pantherlink.uwm.edu (Postfix) with ESMTP id 63B63E6AAC; Sun, 8 Apr 2012 10:58:00 -0500 (CDT)
X-Virus-Scanned: amavisd-new at mta01.pantherlink.uwm.edu
Received: from mta01.pantherlink.uwm.edu ([127.0.0.1]) by localhost (mta01.pantherlink.uwm.edu [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id EX0o98URK9oq; Sun, 8 Apr 2012 10:57:59 -0500 (CDT)
Received: from mail17.pantherlink.uwm.edu (mail17.pantherlink.uwm.edu [129.89.7.177]) by mta01.pantherlink.uwm.edu (Postfix) with ESMTP id 3FBD1E6A72; Sun, 8 Apr 2012 10:57:59 -0500 (CDT)
Date: Sun, 08 Apr 2012 10:57:59 -0500
From: Mukul Goyal <mukul@uwm.edu>
To: roll@ietf.org
Message-ID: <984808904.1851138.1333900679203.JavaMail.root@mail17.pantherlink.uwm.edu>
In-Reply-To: <055.6ee5f9af0660881f34d198ae081e0ce4@trac.tools.ietf.org>
MIME-Version: 1.0
Content-Type: text/plain; charset="utf-8"
Content-Transfer-Encoding: quoted-printable
X-Originating-IP: [129.89.7.91]
X-Mailer: Zimbra 6.0.13_GA_2918 (ZimbraWebClient - IE8 (Win)/6.0.13_GA_2918)
X-Authenticated-User: mukul@uwm.edu
Subject: Re: [Roll] [roll] #88: Data option and ULP
X-BeenThere: roll@ietf.org
X-Mailman-Version: 2.1.12
Precedence: list
List-Id: Routing Over Low power and Lossy networks <roll.ietf.org>
List-Unsubscribe: <https://www.ietf.org/mailman/options/roll>, <mailto:roll-request@ietf.org?subject=unsubscribe>
List-Archive: <http://www.ietf.org/mail-archive/web/roll>
List-Post: <mailto:roll@ietf.org>
List-Help: <mailto:roll-request@ietf.org?subject=help>
List-Subscribe: <https://www.ietf.org/mailman/listinfo/roll>, <mailto:roll-request@ietf.org?subject=subscribe>
X-List-Received-Date: Sun, 08 Apr 2012 15:59:13 -0000
Hi JP, Richard Please mark this ticket as closed. Or would it be done when I submit the new version of the draft with this change in? Thanks Mukul ----- Original Message ----- From: "roll issue tracker" <trac+roll@trac.tools.ietf.org> To: mukul@UWM.EDU, jpv@cisco.com Cc: roll@ietf.org Sent: Wednesday, April 4, 2012 8:10:34 AM Subject: [roll] #88: Data option and ULP #88: Data option and ULP Problem (proposed resolution exists) ------------------------------ An option exists for carrying payload. The use of the option (tunnel, transport?) is not described properly. Proposed resolution ------------------------ Add a next header and a sequence to the data option so upper layers can be determined. Discussion ------------- [Pascal] Can the data option be different from one DIO to the next? [Mukul] The contents of the data option are specified by the origin (for the DIO) or the target (for the DRO). In theory, an origin can send different data options in different DIOs it generates for a particular route discovery (assuming that it does generate multiple DIOs; it is very much possible that the origin generates just one DIO and then sits silent). But, then the origin is taking the risk that some of the data options would never each the target(s). I guess the origin might do this if the data sent earlier is now stale and the origin would like the target(s) to receive newer data. [Pascal2] This should be discussed in the draft. You need to set the expectation for the upper layer(s). Is there a way to differentiate different data sets? Eg instance or sequence nb? My suggestion so far is that the data should have 3 bits of next header and 5 bits of sequence. [Mukul2] This sounds good to me. I will incorporate this in the draft unless I hear a better proposal. [Pascal3] Cool. Please make that another LC issue and the proposed resolution, see if there is anyone adding anything to it. [Mukul3] Actually, I would like the next header to be 4 bits and the sequence number to be 4 bits. 4-bit sequence number will still allow up to 16 different messages to be sent during a P2P-RPL discovery. 4 bit next header will allow 16 different possibilities. We can have so many different ways to compress UDP/TCP headers. I think 3 bit next header may not be sufficient. [Pascal4] Cool. Let's use that as the proposed resolution [Mukul4] OK. Pascal -- -----------------------------------+--------------------- Reporter: jpv@… | Owner: mukul@… Type: defect | Status: new Priority: major | Milestone: Component: p2p-rpl | Version: Severity: Submitted WG Document | Keywords: -----------------------------------+--------------------- Ticket URL: <https://svn.tools.ietf.org/wg/roll/trac/ticket/88> roll <http://tools.ietf.org/wg/roll/>
- [Roll] [roll] #88: Data option and ULP roll issue tracker
- Re: [Roll] [roll] #88: Data option and ULP Mukul Goyal
- [Roll] Closure text for ticket #88 Mukul Goyal
- Re: [Roll] Closure text for ticket #88 Pascal Thubert (pthubert)
- Re: [Roll] [roll] #88: Data option and ULP roll issue tracker
- Re: [Roll] [roll] #88: Data option and ULP roll issue tracker
- Re: [Roll] [roll] #88: Data option and ULP roll issue tracker
- Re: [Roll] [roll] #88: Data option and ULP Mukul Goyal
- Re: [Roll] [roll] #88: Data option and ULP roll issue tracker