From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-wg0-f52.google.com ([74.125.82.52]:48657 "EHLO mail-wg0-f52.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751368AbaKFRIh (ORCPT ); Thu, 6 Nov 2014 12:08:37 -0500 Received: by mail-wg0-f52.google.com with SMTP id b13so1699589wgh.25 for ; Thu, 06 Nov 2014 09:08:36 -0800 (PST) Date: Thu, 6 Nov 2014 18:08:33 +0100 From: Alexander Aring Subject: Re: 6lowpan with external radio Message-ID: <20141106170830.GB32499@omega> References: <20141106165425.GA32499@omega> MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Disposition: inline In-Reply-To: Sender: linux-wpan-owner@vger.kernel.org List-ID: To: Henning Rogge Cc: Marcel Holtmann , linux-wpan@vger.kernel.org Hi, On Thu, Nov 06, 2014 at 06:00:49PM +0100, Henning Rogge wrote: > On Thu, Nov 6, 2014 at 5:54 PM, Alexander Aring wrote: > > Hi, > > > > On Thu, Nov 06, 2014 at 05:33:51PM +0100, Henning Rogge wrote: > >> I had a look at the fakelb driver, > >> > >> if I understand it right it just "connect" the raw-frame side of > >> multiple 6lowpan interfaces with each other, right? So it might be > >> part of the solution... > >> > >> the other part should be similar to the tun.c driver... unfortunately > >> the tun driver got quite complex from what I can see. > >> > > > > do you use a 802.15.4 radio? Then maybe the serial driver is something > > like that what you searching for. > > No, its not a 802.15.4 radio... its mostly layer 1 and some "listen > before talk/ALOHA" media access. I can send it raw frames (with a few > header fields) and get everything the radio receives via serial port. > > A friend of mine suggested looking into 6lowpan instead of writing my > own fragmentation/IP-compression/... scheme. The radio is very slow, > so I need something efficient. > don't know how you can run 6LoWPAN on it. There exist 802.15.4 6LoWPAN [0] and BTLE 6LoWPAN [1]. You need many L2 informations at 6LoWPAN level for exmaple running IPv6 compression mechanism. - Alex [0] https://tools.ietf.org/html/rfc4944 - also see 6282 and 6775 [1] http://tools.ietf.org/html/draft-ietf-6lo-btle-03 (hope this is the newest one)