[Tinyos-help] Is Drip a one-to-many or a many-to-many protocol?

[Philip Levis]

On Aug 4, 2008, at 5:26 PM, John Hendrie wrote:

> Thanks for the explanation.
>
> I have another question about sequence numbers. What happens when  
> the sequence number overflows? I can't see anything in the code that  
> deals with wrapping. Does Drip assume that the sequence number will  
> never wrap?

Yes, it does. You can only change a variable 65,535 times. If this is  
an issue, you can use 32-bit sequence numbers, at which point it will  
take 248 days (at 200 packets per second) to even increment across all  
32 bits. But this would cost an extra 2 bytes/variable, and we thought  
65,535 was sufficient for almost all reasonable cases.

Phil