[Sussex] Embedded help - Is 802.11b an LLC standard under 802.3?

[Mark Harrison]

Iain,

OK - that makes sense. I'm revising stuff that I understood 10+ years ago,
but is now rusty.

The _real_ question is "how does one envelope an IP packet into 802.11x"...

... and the reason for wanting to know is that there's a need to make an
architectural decision between 802.11 and 802.15 for an embedded device, and
I want to understand whether the programmer's analysis of "work required" is
truth or blag :-)

M.

----- Original Message ----- 
From: "Iain Stevenson" <iain at iainstevenson.com>
To: "LUG email list for the Sussex Counties" <sussex at mailman.lug.org.uk>
Sent: Wednesday, December 17, 2003 8:05 PM
Subject: Re: [Sussex] Embedded help - Is 802.11b an LLC standard under
802.3?


>
> By design, the MAC layer addresses sit below the LLC layer - which is IEEE
> 802.2 - in all cases I know of.  IEEE has been pretty scrupulous in
> maintaining that.  LLC SAP addresses are independent of MAC.
>
>   Iain
>
>
>
> --On Wednesday, December 17, 2003 6:45 pm +0000 Mark Harrison
> <Mark at ascentium.co.uk> wrote:
>
> > Dumb question here...
> >
> > I understand 802.3 packets. Specifically, I understand how to frame an
IP,
> > ARP or RARP packet into 802.3 ethernet.
> >
> > My question is, how does that map to 802.11b?
> >
> > I've sort of implicitly been assuming that 802.11b is a sub-standard of
> > the Data level, and sits under 802.3 LLC... This assumption has served
me
> > to date, because I've been living up at the UDP / TCP levels and not
> > needed to worry....
> >
> > ... but the natural implication of this would be that 802.11b MAC
> > addresses are in a flat space together with 802.2. Is this actually
> > correct?
> >
> > The reason I ask is that I've got an interesting embedded system that
uses
> > embedded 802.11b chipsets to discuss tomorrow, and I want to ensure that
> > I'm keeping up with the lead architect :-)
> >
> > Regards,
> >
> > Mark
> >
> >
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> >
>
>
>
>
>
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