Re: TCP packet - are separate packets collected into one?

[James Sentman <james@sentman.com>]

On Feb 26, 2009, at 5:20 PM, Eric dLR wrote:

> > You need to account for all eventualities.
> Don't forget the case where data are dropped or altered. I always  
> include a checksum mechanism... just in case.

Isn't one of the points of TCP that it will return your data, properly  
and in the right order or it will return an error? All the  
checksumming should be built into the underlying TCP protocol and that  
part you shouldn't have to worry about. But it may come to your events  
in little bits or big bits that bear no resemblance to the blocks that  
it was written in.
Course, if you're using UDP or serial ports or wireless protocols then  
all that is up to you. But TCP will either return your data, or it  
will return an error if it cannot re-assemble the packets.

Thanks,
 James


James Sentman                       http://sentman.com          
http://MacHomeAutomation.com




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