Re: CRC-16 or CRC-32

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On Wed, 2010-04-21 at 10:10, Jan Just Keijser wrote:
> ppp_async includes some CRC support BUT it only supports
> 'crc_ccitt_byte' which is a 16bit CRC. The problem now is, which
> CRC32 needs to be suppported? according to

CCITT versions according to the RFC1570.

>  http://en.wikipedia.org/wiki/Cyclic_redundancy_check
> 
> "there are three polynomials reported for CRC-12, thirteen
> conflicting definitions of CRC-16, and six of CRC-32"
> 
> the second problem is: if you want to add CRC32 support then you'd
> have to get it into the linux kernel . that will take *quite* some
> time (unless you can live with patched linux kernels).

It wouldn't be so hard to push it to the kernel because Paul Mackerras
is/was on this list and he is the ppp driver maintainer, I hope ;)

-- 
Kind regards,  Milan
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