Re: [6lowpan] WG adoption of draft-patil-6lowpan-v6over-btle-01.txt

Appologies - I'm typing on a netbook keyboard and somehow hit the 'send'
shortcut by accident.

The line:
* You have a 16-bit PAN-ID (this isn't used in -hc anymore, but RFC4944

Should read (I wasn't done typing):
* You have a 16-bit PAN-ID (this isn't used in -hc anymore, but RFC4944
still references it in broadcast frames)

Regards,

  -Colin O'Flynn

-----Original Message-----
From: 6lowpan-bounces@ietf.org [mailto:6lowpan-bounces@ietf.org] On Behalf
Of Colin O'Flynn
Sent: April 5, 2011 7:47 AM
To: 'Benjamin A. Rolfe'
Cc: 6lowpan@ietf.org
Subject: Re: [6lowpan] WG adoption of draft-patil-6lowpan-v6over-btle-01.txt

Hello,

> Perhaps a more specific question is, what features of the PHYs > and MAC 
> does 6LoWPAN depend on to work?

Basically, zero. RFC4944 + 6lowpan-hc assumes/uses the following:

* You have a 16-bit short address
* You have a 64-bit long address (EUI)
* You have a 16-bit PAN-ID (this isn't used in -hc anymore, but RFC4944
* You have a 127 byte payload
* You have a 'broadcast' mode

It only uses data transmissions: there is no scanning, beaconing, etc etc.
All that 'extra stuff' is left up to another layer if you want to use it.

-----Original Message-----
From: 6lowpan-bounces@ietf.org [mailto:6lowpan-bounces@ietf.org] On Behalf
Of Benjamin A. Rolfe
Sent: April 4, 2011 10:14 PM
Cc: 6lowpan@ietf.org
Subject: Re: [6lowpan] WG adoption of draft-patil-6lowpan-v6over-btle-01.txt

Yes, a very interesting question!
The three approved amendments define new PHY layers. All of the 
currently defined PHYs share a maximum PSDU size of 127.
There are some added MAC features to support new PHY features but the 
basic MAC has not changed.
Perhaps a more specific question is, what features of the PHYs and MAC 
does 6LoWPAN depend on to work?
-B

> On Apr 4, 2011, at 21:40, Benjamin A. Rolfe wrote:
>
>> P802.15.4-2006 alone is not the current standard: There are three
approved amendments and so the current standard is P802.15.4-2006 plus the
three amendments approved (P802.15.4a-2007, P802.15.4c-2009 and
P802.15.4d-2009).  You need all 4 documents to know what is in the current
standard.
> So one interesting question would be -- does 6LoWPAN (RFC 4944 - HC1/2 +
HC + ND) work with all these?
>
> Gruesse, Carsten
>
>

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