lkml.org 
[lkml]   [2001]   [Sep]   [26]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
SubjectRe: Ethernet Error Correction
Date
From
> there is a fog of course. But dropping a single bit in 1500 bytes makes a lot
> of mess. There is also unsused src and dest address (12 bytes) which is
> obvious and superfluous. What about kicking the address off and putting some
> error correction codes (like Hamming) into it and putting the cards into
> promisc mode? It would make the link work on bigger distance and on thicker
> mist. We could even dynamically change the ECC/data ratio for example with
> Reed Solomon Codes. Ethernet modulation is strong gainst sync dropouts so the
> bits usually remain their place, just some of them happen to flip. We could
> also kick the "lenght" field because end of packet is recognized by a pulse
> longer than 200ns, not neither by ECC nor by the length (am I right?).

You could do this by picking the right cards turning off CRC filtering and
doing a lot of work in software yes
-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@vger.kernel.org
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/

\
 
 \ /
  Last update: 2005-03-22 13:03    [W:0.099 / U:19.060 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site