Linux IEEE 802.15.4 and 6LoWPAN development
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From: Alexander Aring <alex.aring@gmail.com>
To: Baptiste Clenet <bapclenet@gmail.com>
Cc: linux-wpan@vger.kernel.org
Subject: Re: What is SAM value? "ieee802154 phy0 wpan0: SAM value 0x3 not supported"
Date: Fri, 24 Jul 2015 10:31:10 +0200	[thread overview]
Message-ID: <20150724083106.GA2655@omega> (raw)
In-Reply-To: <CAPpUg6PNNipdf-kXvy9EOo6_8HtauGXMR0WAjXG_gY82DQEY_g@mail.gmail.com>

Hi,

On Fri, Jul 24, 2015 at 09:56:49AM +0200, Baptiste Clenet wrote:
> Hi,
> 
> What is SAM value? I got "ieee802154 phy0 wpan0: SAM value 0x3 not
> supported" when I receive a ping from another board.
> 

I think you hit [0]. You got that because we received some 6LoWPAN frame
with context based address compression (the source address). See also [1].

Your options are:

 - That the other board use stateless (means SAC = 0, see [1]) address
   compression.

 - Implement context based address compression, there was recently a
   RFC patch series which implemented it. This maybe depends also for
   handling 6CO field correctly.

- Alex

[0] http://lxr.free-electrons.com/source/net/6lowpan/iphc.c#L147
[1] https://tools.ietf.org/html/rfc6282#section-3.1

  reply	other threads:[~2015-07-24  8:31 UTC|newest]

Thread overview: 39+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2015-07-24  7:56 What is SAM value? "ieee802154 phy0 wpan0: SAM value 0x3 not supported" Baptiste Clenet
2015-07-24  8:31 ` Alexander Aring [this message]
2015-07-24  8:47   ` Baptiste Clenet
2015-07-24  9:02     ` Baptiste Clenet
2015-07-24  9:45       ` Baptiste Clenet
2015-07-24  9:53         ` Alexander Aring
2015-07-24  9:48       ` Alexander Aring
2015-07-24  9:56         ` Baptiste Clenet
2015-07-24 10:18           ` Alexander Aring
2015-07-24 12:03             ` Baptiste Clenet
2015-07-24 12:13               ` Alexander Aring
2015-07-24 12:53                 ` Baptiste Clenet
2015-07-24 13:07                   ` Alexander Aring
2015-07-24 14:45                     ` Baptiste Clenet
2015-07-24 14:51                       ` Stefan Schmidt
2015-07-24 15:14                         ` Baptiste Clenet
2015-07-24 16:24                           ` Stefan Schmidt
2015-07-26 21:03                             ` Baptiste Clenet
2015-07-27  8:03                           ` Baptiste Clenet
2015-07-27  8:06                             ` Baptiste Clenet
2015-07-27  8:32                             ` Alexander Aring
2015-07-27  8:58                               ` Baptiste Clenet
2015-07-27  9:05                                 ` Baptiste Clenet
2015-07-27  9:30                                   ` Alexander Aring
2015-07-27 10:08                                     ` Baptiste Clenet
2015-07-27 10:21                                       ` Alexander Aring
2015-07-27 10:31                                         ` Baptiste Clenet
2015-07-27 10:38                                           ` Alexander Aring
2015-07-27 10:52                                             ` Baptiste Clenet
2015-07-27 11:30                                               ` Alexander Aring
2015-07-27 12:29                                                 ` Baptiste Clenet
2015-07-27 12:42                                                   ` Alexander Aring
2015-07-27 12:45                                                     ` Baptiste Clenet
2015-07-27 15:13                                                       ` Baptiste Clenet
2015-07-27 15:55                                                         ` Baptiste Clenet
2015-07-27 16:35                                                           ` Alexander Aring
2015-07-27 17:28                                                           ` Alexander Aring
2015-07-27 17:43                                                             ` Baptiste Clenet
2015-07-27 19:10                                                               ` Alexander Aring

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