On 7/20/06, Philip Levis <[EMAIL PROTECTED]> wrote:
You can totally write an IP stack -- even a TCP stack -- on sensor
nodes today, admittedly the ones that have the biggest
microcontrollers you can buy (atmega128L, MSP430F1611, etc.). The TCP
stack might not have a lot of RAM for windowing and high performance,
but that's rarely the goal. You can do it.
I don't think the requirements the document implies are unrealistic
or onerous. As I said, you have to cut the line somewhere. My comment
was just that they *do* preclude smaller nodes whose storage cannot
hold a complete IPv6 packet, and it might be useful to note as such,
since the document is defining the problem statement, and therefore
the problem scope.
Your point is valid. Though IMHO, drawing a strict line on non-applicability
on low RAM devices may not be wise. But I do agree that having a few lines
of text about the issues on having low RAM or tiny micro-controllers would be
useful to discuss. It will actually help the implementors make the
right decision
on optimization on their implementation, if possible, in case they decide to use
6lowpan stack on those low-capability HW devices.
Regards,
-Samita
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