Date: Fri, 21 Oct 2011 10:28:22 +0200 From: Damien Fleuriot <ml@my.gd> To: freebsd-stable@freebsd.org Subject: Re: 8.1 xl + dual-speed Netgear hub = yoyo Message-ID: <4EA12D26.4020104@my.gd> In-Reply-To: <4ea18916.IBAr0lF5RCzEYn6G%perryh@pluto.rain.com> References: <4ea18916.IBAr0lF5RCzEYn6G%perryh@pluto.rain.com>
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On 10/21/11 5:00 PM, perryh@pluto.rain.com wrote: > I have an 8.1-RELEASE system with an xl on the mainboard: > > xl0: <3Com 3c905C-TX Fast Etherlink XL> port 0xdc80-0xdcff mem 0xf8fffc00-0xf8fffc7f irq 16 at device 4.0 on pci2 > miibus0: <MII bus> on xl0 > xlphy0: <3c905C 10/100 internal PHY> PHY 24 on miibus0 > xlphy0: 10baseT, 10baseT-FDX, 100baseTX, 100baseTX-FDX, auto > xl0: Ethernet address: 00:b0:d0:22:5a:14 > xl0: [ITHREAD] > > It has been working properly while connected to an old 10-BaseT hub, > but when I moved it to a (not as old) Netgear 10/100 dual-speed hub > the link started to yo-yo: > Pray tell, what's a "dual-speed hub" , marketing mumbo-jumbo ? If that's a hub that supports negotiation of different speeds (10 vs 100), then yes, I call that marketing mumbo-jumbo ;) > Oct 21 07:16:00 fbsd81 kernel: xl0: link state changed to DOWN > Oct 21 07:16:02 fbsd81 kernel: xl0: link state changed to UP > Oct 21 07:16:12 fbsd81 kernel: xl0: link state changed to DOWN [snip] > > Both connections were using the same (short) Cat5 cable, I tried two > different ports on the 10/100 hub, and other systems work OK on that > 10/100 hub. > > How do I get this interface to operate properly at 100MB? You change your faulty cable and enjoy ;) It is totally possible that your cable be the cause, and that it can operate just fine at 10MB but not at 100.
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