SMC Networks 1000BASE-X manual Is used for full duplex. Note that flow control should

		CONFIGURING THE SWITCH
Parameter	Default	Description
Flow Control	Disabled	Used to enable or disable flow control. Flow control
		can eliminate frame loss by “blocking” traffic from
		end stations or segments connected directly to the
		switch when its buffers fill. IEEE 802.3x flow control
		is used for full duplex. Note that flow control should
		not be used if a port is connected to a hub.
Speed and	100_FULL	Used to set the current port speed and duplex mode.
Duplex		The MT-RJ ports have a default setting of 100_FULL.
		Auto-negotiation is the default setting for
		1000BASE-T, 1000BASE-SX and 1000BASE-LX;
		but is not available for 100BASE-FX.

Note: MT-RJ ports operate at 100 Mbps and support full- and half-duplex mode. 100BASE-FX module ports operate at

100Mbps, full-duplex only. 1000BASE-SX and 1000BASE-LX ports are fixed at 1000 Mbps, but auto-negotiate duplex mode and flow control. 1000BASE-T ports auto-negotiate speed (1000/100/10 Mbps), duplex mode and flow control.

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