IETF Logo Mail Archive

Re: [v6ops] I-D Action: draft-ietf-v6ops-ipv6-roaming-analysis-02.txt

Ross Chandler <ross@eircom.net> Wed, 06 August 2014 20:23 UTC

Return-Path: <ross@eircom.net>
X-Original-To: v6ops@ietfa.amsl.com
Delivered-To: v6ops@ietfa.amsl.com
Received: from localhost (ietfa.amsl.com [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id AD7A01A010C for <v6ops@ietfa.amsl.com>; Wed, 6 Aug 2014 13:23:41 -0700 (PDT)
X-Virus-Scanned: amavisd-new at amsl.com
X-Spam-Flag: NO
X-Spam-Score: -1.9
X-Spam-Level:
X-Spam-Status: No, score=-1.9 tagged_above=-999 required=5 tests=[BAYES_00=-1.9, FREEMAIL_FROM=0.001, RCVD_IN_DNSWL_NONE=-0.0001, RP_MATCHES_RCVD=-0.001] autolearn=ham
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 NwNXuX1Qf6Uv for <v6ops@ietfa.amsl.com>; Wed, 6 Aug 2014 13:23:36 -0700 (PDT)
Received: from mail05.svc.cra.dublin.eircom.net (mail05.svc.cra.dublin.eircom.net [159.134.118.21]) by ietfa.amsl.com (Postfix) with SMTP id 982101A00F2 for <v6ops@ietf.org>; Wed, 6 Aug 2014 13:23:36 -0700 (PDT)
Received: (qmail 26460 messnum 13270984 invoked from network[213.94.190.14/avas02.vendorsvc.cra.dublin.eircom.net]); 6 Aug 2014 20:23:34 -0000
Received: from avas02.vendorsvc.cra.dublin.eircom.net (213.94.190.14) by mail05.svc.cra.dublin.eircom.net (qp 26460) with SMTP; 6 Aug 2014 20:23:34 -0000
Received: from mac1.home.ross.net ([159.134.196.35]) by avas02.vendorsvc.cra.dublin.eircom.net with Cloudmark Gateway id bYPX1o00R0mJ9Tz01YPaAq; Wed, 06 Aug 2014 21:23:34 +0100
Content-Type: text/plain; charset="windows-1250"
Mime-Version: 1.0 (Mac OS X Mail 7.3 \(1878.6\))
From: Ross Chandler <ross@eircom.net>
In-Reply-To: <84A403BD-7E93-4D99-8C11-FB7F91B68154@eircom.net>
Date: Wed, 06 Aug 2014 21:23:30 +0100
Content-Transfer-Encoding: quoted-printable
Message-Id: <0CEE83E4-FA58-4D85-B753-1F218540C624@eircom.net>
References: <256EAE0B-5C11-42C7-BCA1-CEC7EE6713A7@cisco.com> <53DFD634.4020304@fud.no> <DE860EBC-171E-46E7-A3B6-5E8B79A453CC@cisco.com> <53DFEC6C.3010707@gmail.com> <CAD6AjGRUWxT5XiNxMi_S5VgYtGMLb_FVHXN-ZfGpcY=geix15g@mail.gmail.com> <53E06AC9.9010908@fud.no> <CAD6AjGTwt-20gXs=RUH5zbhT+g3HKrvXHX3FnShjF1srqU21Fw@mail.gmail.com> <94146541-768B-4853-A011-7558655C361C@eircom.net> <53E11795.7060305@fud.no> <alpine.DEB.2.02.1408060856080.7929@uplift.swm.pp.se> <53E1D951.8030200@fud.no> <3f59106bc21840dfb144c7933215294f@srvhk403.rdm.cz> <53E27522.4070901@fud.no> <84A403BD-7E93-4D99-8C11-FB7F91B68154@eircom.net>
To: IPv6 Ops WG <v6ops@ietf.org>
X-Mailer: Apple Mail (2.1878.6)
Archived-At: http://mailarchive.ietf.org/arch/msg/v6ops/4uYEehV5H0AlqWfJmcH_OMR7D2g
Subject: Re: [v6ops] I-D Action: draft-ietf-v6ops-ipv6-roaming-analysis-02.txt
X-BeenThere: v6ops@ietf.org
X-Mailman-Version: 2.1.15
Precedence: list
List-Id: v6ops discussion list <v6ops.ietf.org>
List-Unsubscribe: <https://www.ietf.org/mailman/options/v6ops>, <mailto:v6ops-request@ietf.org?subject=unsubscribe>
List-Archive: <http://www.ietf.org/mail-archive/web/v6ops/>
List-Post: <mailto:v6ops@ietf.org>
List-Help: <mailto:v6ops-request@ietf.org?subject=help>
List-Subscribe: <https://www.ietf.org/mailman/listinfo/v6ops>, <mailto:v6ops-request@ietf.org?subject=subscribe>
X-List-Received-Date: Wed, 06 Aug 2014 20:23:42 -0000

On 6 Aug 2014, at 20:46, Ross Chandler <ross@eircom.net> wrote:

> 
> It might be that when the UE visits a network that doesn’t allow IPv6 in the user-plane Android behaviour is kicking in.
> 
> I’ve been told that Android treats all APNs as “roughly equal”. 
> 
> If the new IPv6-only-without-IPv4-fallback APN fails then Android might be trying the IPv4 one.

If this is what’s going on in Telenor case the plus is it maximises the number of roaming partners that come up with IPv6 but at the possible cost of indeterminism on which APN the UE settles on using when it gets back home.

Ross

v2.23.0 | Report a Bug | By Email