Date: Wed, 22 Sep 1999 15:58:12 -0400 From: Mitch Collinsworth <mkc@Graphics.Cornell.EDU> To: mike@sentex.net (Mike Tancsa) Cc: questions@freebsd.org Subject: Re: how to set fxp0 to half-duplex? [was: nfs tuning] Message-ID: <199909221958.AA276660293@broccoli.graphics.cornell.edu> In-Reply-To: Your message of "Wed, 22 Sep 1999 02:08:16 GMT." <37e83872.517261482@mail.sentex.net>
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>>I changed the switch port to half-duplex and the frame and CRC errors >>and rpc timeouts all stopped immediately. Then I rebooted the FBSD >>machine in order to get it to pick up the half-duplex setting from >>the switch. I'm not sure if this last step was necessary. Does it >>take a reboot? Is there some way to switch duplex setting on the fly? >>ifconfig mediaopts seems like the obvious place, but fxp(4) only lists >>full-duplex as an option, no half-duplex. > >ifconfig fxp0 media 10BaseT/UTP >ifconfig fxp0 media 10BaseT/UTP mediaopt full-duplex > >No reboot is needed. ackk! It's not auto-sensing! I've been ass_u_ming it was. Why, pray tell, isn't this documented? >I use lots of fxp cards on a couple of Cat 1900s in 10BaseT Full duplex >mode without any errors. Similarly on the 100BaseT ports in full duplex >Here is a sample in 100BaseT full duplex. > > >------------------------------------- >Total good frames 632711776 >Total octets >1834088214 >Broadcast/multicast frames 4108617 >Broadcast/multicast octets 498649470 >Good frames forwarded 632711776 >Frames filtered 0 >Runt frames 0 >No buffer discards 0 > >Errors: > FCS errors 0 > Alignment errors 2 > Giant frames 0 > Address violations 0 > > >------------------------------------- >Total frames 918936189 >Total octets > 943528760 >Broadcast/multicast frames 101871841 > Broadcast/multicast octets>2589699969 > Deferrals 0 > Single collisions 0 > Multiple collisions 0 > Excessive collisions 0 > Queue full discards 0 > Errors: >Late collisions 0 >Excessive deferrals 0 >Jabber errors 0 >Other transmit errors 0 Hey, ethernet counters! How do you get these? -Mitch To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-questions" in the body of the message
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