Date: Wed, 16 Jan 2002 13:37:39 -0800 From: "Kevin Oberman" <oberman@ptavv.es.net> To: mdavis@cts.com Cc: freebsd-stable@freebsd.org, "'Richard Shaw'" <Richard.Shaw@mondus.com> Subject: Re: PCI Wavelan cards under 4.4 Message-ID: <20020116213739.AE4025D13@ptavv.es.net> In-Reply-To: Your message of "Wed, 16 Jan 2002 12:16:52 PST." <001b01c19eca$bcac85d0$b617a3cd@ctsd2>
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> From: "Morgan Davis" <morgan.davis@hosting.com> > Date: Wed, 16 Jan 2002 12:16:52 -0800 > Sender: owner-freebsd-stable@FreeBSD.ORG > > I have one of these working with 4.5-PRERELEASE: > > http://www.addtron.com/products/awa100.htm > > I bought it only because it said it was compatible with Linux, and was > thrilled to see that it worked with FreeBSD. I'm getting about 5+ Mbps > over it. > > The only problem, which I reported here a couple weeks ago, is that I > regularly get kernel messages on the console about "oversized packets". > Other than annoying, it doesn't seem to be a problem. Does anyone know > if those messages indicate a real error situation that can be fixed on > my end, is this just debug output, or what? Oversized packets are usually from on of two sources: 1. Duplex mis-match. (This should also produce CRC and framing errors). Auto-negotiation of duplex often fails. We always lock our ports down if they are permanently connected to a device. Speed detection is quite reliable. 2. 802.1q VLAN trunking. The VLAN header expands the packet by 2 octets which exceeds the old 802.3 limit on frame size for full 1500 byte packets. Lowering the MTU by 2 on the sending systems might fix this, but the header is normally removed by the last switch to process the frame. This might indicate a mis-configured switch. R. Kevin Oberman, Network Engineer Energy Sciences Network (ESnet) Ernest O. Lawrence Berkeley National Laboratory (Berkeley Lab) E-mail: oberman@es.net Phone: +1 510 486-8634 To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-stable" in the body of the message
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