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List:       opensuse
Subject:    Re: [opensuse] configure jumbo frames
From:       Dave Feustel <dfeustel () mindspring ! com>
Date:       2009-04-23 16:13:27
Message-ID: 20090423161327.375D2889EE () mx2 ! suse ! de
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On Thu, Apr 23, 2009 at 05:38:34PM +0200, Per Jessen wrote:
> Dave Feustel wrote:
> 
> > On Thu, Apr 23, 2009 at 03:24:29PM +0200, Per Jessen wrote:
> >> Dave Feustel wrote:
> >> 
> >> > F9 and Suse are running on different versions of MSI K9N
> >> > motherboards (v1,v3) with builtin 1G nics. The v3 motherboard has a
> >> > dual processor.
> >> > 
> >> > The Netgear card is plugged into a 10-year-old Dell.
> >> 
> >> I suspect what you have is this:
> >> 
> >> 1) MSI K9N v1 - NICs support jumbo frames
> >> 2) MSI K9N v3 - NICs do not support jumbo frames
> > 
> > The v3 motherboard has a Realtek RTL8111b nic chip.
> > I found the data sheet (RTL8111B_8168B_Registers_DataSheet_1.0.pdf)
> > and the Jumbo frame support goes to 7552 bytes. Why Suse doesn't
> > support the Jumbo setting is a mystery.
> 
> According to the kernel source, the latest driver version supports
> only "baby" jumbo frames, size <= 7200.  (assuming the driver is
> r8169).

That worked! Thanks!
 
> >> 3) Netgear - does not support jumbo frames
> > 
> > Netgear GA311 supports jumbo frames to 7500.
> > http://kb.netgear.com/app/answers/detail/a_id/222
> > 
> > Netgear strongly advises setting jumbo frames on all adapters to the
> > same value.
> 
> Yeah :-)
> 
> 
> /Per
> 
> 
> -- 
> Per Jessen, Zürich (13.4°C)
> 
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