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SUSE9.1 Peculiar Gigabit Lan performance.

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Operating Systems Linux SUSE9.1 Peculiar Gigabit Lan performance.
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Old 01-08-2005
SUSE9.1 Peculiar Gigabit Lan performance.
I'm having some peculiar performance issues with my Gigabit Lan.

I have some 100Mb devices so I can't do the necessary "jumbo Frame" tweaks for absolute optimum performance as I'd prevent them access.

I'm getting appauling transfer rates sending files to the linux machine, around 10 Mbps 3% utilization (off the top of my head). However, the second I download from the internet using the Linux machine whilst simultaneously sending files to it I get a very heathy 200mbps+.

Every time I have some files to transfer I now find that I have to set the Linux machine downloading a huge file off the net just so I can get the increased local network performance.

Anyone know how I can get this performance increase without connecting to the net?

Thanks for any pointers,

Mark.
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LEARN ABOUT NETBSD

stge

STGE(4) 						   BSD Kernel Interfaces Manual 						   STGE(4)

NAME

     stge -- Sundance/Tamarack TC9021 Gigabit Ethernet driver

SYNOPSIS

     stge* at pci? dev ? function ?

     Configuration of PHYs or Ten-bit interfaces may also be necessary.  See mii(4).

DESCRIPTION

     The stge device driver supports the Sundance/Tamarack TC9021 Gigabit Ethernet chip.

     The Sundance/Tamarack TC9021 is found on the D-Link DGE-550T, and the Antares Microsystems Gigabit Ethernet board.  It uses an external PHY
     or an external 10-bit interface.

     The TC9021 supports IPv4/TCP/UDP checksumming in hardware.  The stge driver supports this feature of the chip.  See ifconfig(8) for informa-
     tion on how to enable this feature.

SEE ALSO

     arp(4), ifmedia(4), mii(4), netintro(4), pci(4), ifconfig(8)

HISTORY

     The stge driver first appeared in NetBSD 1.6.

AUTHORS

     The stge driver was written by Jason R. Thorpe <thorpej@NetBSD.org>.

BUGS

     The stge driver does not support the VLAN tag insertion/removal feature of the TC9021 chip.  This is primarily because the TC9021's VLAN do
     not have a useful programming interface.

     The stge driver does not yet support jumbo Ethernet frames.

     The stge driver does not yet function properly with 1000BASE-T fitted boards.  Currently, only 1000BASE-SX boards work.

BSD
								   July 24, 2001							       BSD