what about support wifi in bootloader?

Mike (mwester) mwester at dls.net
Thu Mar 19 14:42:29 CET 2009

Rask Ingemann Lambertsen wrote:
> On Tue, Mar 17, 2009 at 11:11:21AM -0500, Mike (mwester) wrote:
>> the only concern I
>> would have with wifi would be reliability -- probably best to either
>> implement your own checksumming mechanism to ensure a reliable download
>> if you use simple protocols like tftp, ftp, or http to download.
>    Please explain why he would need his own checksumming mechanism for
> reliable downloads over ftp or http.

I think you have a flawed assumption -- neither ftp or http are reliable.

Check the protocol docs for details on the extraordinarily-weak
packet-level checksum (not even CRC) that is provided by TCP.  And
assumes that all levels of the stack on the server  and client side
correctly handle error codes and statuses -- which is also something one
should not rely upon on any critical download.

Mike (mwester)

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