Date: Sun, 31 Mar 2002 16:23:03 -0800 (PST) From: Tom Samplonius <tom@sdf.com> To: Peter Brezny <peter@skyrunner.net> Cc: freebsd-isp@freebsd.org Subject: Re: transmit underflow. Message-ID: <Pine.BSF.4.05.10203311612540.924-100000@misery.sdf.com> In-Reply-To: <NEBBIGLHNDFEJMMIEGOOEEDPEPAA.peter@skyrunner.net>
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On Sun, 31 Mar 2002, Peter Brezny wrote: > Hi everyone, > > I've got two digital 4 port Ethernet cards in a system acting as a router. > I get a lot of these after startup. What does all this mean? > > Mar 31 19:44:59 zeus /kernel: de0: abnormal interrupt: transmit underflow > (raising TX threshold to 128|512) See the archives. The cards are starving for transmit data, so the threshold is increased. You might want to use a motherboard with a better PCI implementation, or multiple PCI buses. Lots of server motherboards have two to three PCI buses. Or, use 64bit PCI motherboard and a single GigE card with VLANs instead. > I've also recently had a problem with 'too many stray IRQ's' Remove or disable the device that is doing that. > Which effectively took one of these interfaces down. These digital cards > run rather hot. Any suggestions on multiport network cards? Better cooling perhaps? 16 ethernet ports is going to generate heat no matter how you do it. > Thanks, > > Peter Brezny > Skyrunner.net > Tom To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-isp" in the body of the message
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