3Com 3C985B-SX, 3C986-T, 710026, 710011, 710024, 710025 manual Installing the NIC Software

	2	Installing the NIC Software
NIC Configuration Parameters (continued)
Parameter	Description
Duplex	When you disable link negotiation while installing a 1000Base-SX or
	10/100/1000Base-T NIC, you can select either half-duplex or
	full-duplex operation. If you select this field and press <Enter>, you
	are prompted to choose between “full” and “half” settings:
	■ When “full” is selected, full-duplex signaling is enabled (default).
	■ When “half” is selected, half-duplex signaling is used.
Speed	If link negotiation has been disabled, you can select port speed to
	be either 10Mbps, 100Mbps, or 1Gbps.
RxFlowControl	When you select this field and press <Enter>, you are prompted to
	choose between “allow” and “off” settings:
	■ When “allow” is selected, and link parameter is set to “auto,”
	the NIC negotiates 802.3x receive flow control with the device
	at the other end of the link. If the other device supports 802.3x
	flow control, Rx flow control is enabled.
	■ When “off” is selected, or link parameter is “off,” receive flow
	control is disabled.
TxFlowControl	When you select this field and press <Enter>, you are prompted to
	choose between “allow” and “off” settings.
	■ When “allow” is selected, and link parameter is set to “auto,”
	the NIC negotiates 802.3x transmit flow control with the device
	at the other end of the link. If the other device supports 802.3x
	flow control, Tx flow control is enabled.
	■ When “off” is selected, or link parameter is “off,” transmit flow
	control is disabled.
FDRFiltering	When you select this field and press <Enter>, you are prompted to
	choose between “on” and “off” settings:
	■ Use “on” if the NIC is attached to a full-duplex repeater.
	■ Use “off” or leave the field blank if the NIC is not connected to
	a full-duplex repeater.
	NOTE: FDRFiltering is ignored on NIC models 710011 and 710012.
	This parameter is included to maintain driver compatibility with
	earlier models.

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