The NIC manifacturer are mostly not "so correct" in regards of timing and
usually also a 20cm cable will work but if you want to stay within the standard,
keep at least 2.5m between two nodes.
Anything else may work but does not have to.
Rolf Sommerhalder wrote:
> The cable between the WRAP and the switch is only 0.5 m long (where
> Frame Errors occur in manual 100/full), whereas the cable between the
> WRAP and the ISP's router is some 5 m long (never observing any Frame
> Error there in manual 100/full).
> Would it be possible that the fixes made in the sis driver regarding
> cable length maybe apply only to the auto negotiation mode, but for
> whatever reason do not work around the hardware bug in manual 100/full
> I'll go and replace the 0.5m cable by a 10 m cable, just to check if I
> can get rid of this weird problem. Also, I might have a look at the
> sources of the sis driver.