[6lowpan] nd-18 NCE

Tom <my.mailing.acc@gmail.com> Tue, 07 February 2012 11:04 UTC

Return-Path: <my.mailing.acc@gmail.com>
X-Original-To: 6lowpan@ietfa.amsl.com
Delivered-To: 6lowpan@ietfa.amsl.com
Received: from localhost (localhost []) by ietfa.amsl.com (Postfix) with ESMTP id 7377A21F86D9 for <6lowpan@ietfa.amsl.com>; Tue, 7 Feb 2012 03:04:37 -0800 (PST)
X-Virus-Scanned: amavisd-new at amsl.com
X-Spam-Flag: NO
X-Spam-Score: -1.215
X-Spam-Status: No, score=-1.215 tagged_above=-999 required=5 tests=[AWL=-1.076, BAYES_20=-0.74, HTML_MESSAGE=0.001, J_CHICKENPOX_55=0.6]
Received: from mail.ietf.org ([]) by localhost (ietfa.amsl.com []) (amavisd-new, port 10024) with ESMTP id zs2i6xi8Utm5 for <6lowpan@ietfa.amsl.com>; Tue, 7 Feb 2012 03:04:37 -0800 (PST)
Received: from mail-lpp01m020-f172.google.com (mail-lpp01m020-f172.google.com []) by ietfa.amsl.com (Postfix) with ESMTP id AC76621F853E for <6lowpan@ietf.org>; Tue, 7 Feb 2012 03:04:35 -0800 (PST)
Received: by lbbgk8 with SMTP id gk8so1716533lbb.31 for <6lowpan@ietf.org>; Tue, 07 Feb 2012 03:04:34 -0800 (PST)
DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=gamma; h=mime-version:date:message-id:subject:from:to:content-type; bh=eGiAMRbHFqGWni8N8eWW6M/+fRbtX8SYklapBKpEZFA=; b=awM3j8qTUP3zNogePduz2izIokdJxkL0xOpQpUAu1u2DLM2FsUlFYhe0h8/3Qfzz/7 LGmQgnOKQeIz+rK0xXvK3GxKlW6v8oRTSoTpqc+UQ7mre4+IhBnT2VxQpUMaZiTwZWNq +omK9WFczFLkNxSX3u8k3dGVRrYhEjWoM53Vc=
MIME-Version: 1.0
Received: by with SMTP id p8mr5974678lbk.79.1328612674642; Tue, 07 Feb 2012 03:04:34 -0800 (PST)
Received: by with HTTP; Tue, 7 Feb 2012 03:04:34 -0800 (PST)
Date: Tue, 7 Feb 2012 16:34:34 +0530
Message-ID: <CAHoqu_qMbL7aicOoZSG8mcKEeo1TzdhX0c02nD99X7KSDGJTYg@mail.gmail.com>
From: Tom <my.mailing.acc@gmail.com>
To: 6lowpan@ietf.org
Content-Type: multipart/alternative; boundary=bcaec539653284234004b85dbe5d
Subject: [6lowpan] nd-18 NCE
X-BeenThere: 6lowpan@ietf.org
X-Mailman-Version: 2.1.12
Precedence: list
List-Id: Working group discussion for IPv6 over LowPan networks <6lowpan.ietf.org>
List-Unsubscribe: <https://www.ietf.org/mailman/options/6lowpan>, <mailto:6lowpan-request@ietf.org?subject=unsubscribe>
List-Archive: <http://www.ietf.org/mail-archive/web/6lowpan>
List-Post: <mailto:6lowpan@ietf.org>
List-Help: <mailto:6lowpan-request@ietf.org?subject=help>
List-Subscribe: <https://www.ietf.org/mailman/listinfo/6lowpan>, <mailto:6lowpan-request@ietf.org?subject=subscribe>
X-List-Received-Date: Tue, 07 Feb 2012 11:04:37 -0000

Hi All,

Is there any state transition diagram available for the NCE maintenance in

Also, kindly clarify what does "A renewed ARO should mark the cache entry
as STALE" .

Is it to say that the first time a ARO is received the NCE becomes
REGISTERED and for all the subsequent received AROs from the same node the
NCE is set to STALE, but not grabage-collected and treated as REGISTERED.

Or is that a NCE now has two state variables (4861 state = probe,stale etc
and ND-18 state - registered or tentative).

Thomas Chacko