From owner-freebsd-questions@FreeBSD.ORG  Tue Jun  8 07:56:39 2010
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Date: Tue, 08 Jun 2010 09:56:37 +0200
From: Frank Bonnet <f.bonnet@esiee.fr>
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Subject: Boosting up gigabit interface ?
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Hello

Does some anyone could give me a path to boost up the flow
between a server and a Cisco 3750 switch if possible  (jumbo frames ? ) ?

The server is an IBM X3650 ( 7.2-RELEASE) with two Broadcom gigabit
interfaces.

ifconfig give that parameters :

bce0: flags=8843<UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST> metric 0 mtu 1500
options=1bb<RXCSUM,TXCSUM,VLAN_MTU,VLAN_HWTAGGING,JUMBO_MTU,VLAN_HWCSUM,TSO4>
	ether 00:14:5e:dc:44:8e
	inet 147.215.1.3 netmask 0xffffff00 broadcast 147.215.1.255
	media: Ethernet autoselect (1000baseTX <full-duplex>)
	status: active

the server is directly attached to the Cisco switch

Thank you