et0: transmit: no carrier messages to console?

Brendan Eich brendan at illyria.wpd.sgi.com
Sat May 25 09:04:53 AEST 1991


In article <106109 at sgi.sgi.com>, vjs at rhyolite.wpd.sgi.com (Vernon Schryver) writes:
> 
> "no carrier" usually means the ethernet cable is not connected or loose.
> 
> "late collision" means a long packet suffered a collision after the 1st
> 	64 bytes, which in turn means that your ethernet is mis-configured.
> 	A late collision means the distance between distant parts of the
> 	network is more than 64-byte times.  The most common error is
> 	using excessively long drop cables.  With at least some twisted
> 	pair transceivers, you're limited to 10 or 20 feet.  It is also
> 	easy to break thick net by using three or more 75 meter 
> 	drop cables.

By the way, ethernet(7) describes these and other error messages.  In 4.0,
the "no carrier" message reads "no carrier: check Ethernet cable".

/be



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