LevelOne GSW-2600TXM manual Switch Link Partner Flow Control

		The 100BASE-FX, 1000BASE-SX/LX and 1000BASE-T
		modules are all fixed at the indicated speed and duplex mode.
		All media types can auto-negotiate flow control.
Default Type	10HDX	If auto-negotiation is disabled, the port will be set to the
	(except	indicated speed and duplex mode.
	100FX)
Current Type		Indicates the current speed and duplex mode.
Flow Control	Off	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.
		When enabled, back pressure is used for half duplex and
		IEEE 802.3x for full duplex. Note that flow control should not
		be used if a port is connected to a hub. For the Gigabit
		modules the options for flow control are set out below:
		Switch	Link Partner	Flow Control
		Rcv/BothWay	SendOnly	Switch can only receive pause
				frames, link partner can only
				send pause frames.
		Rcv/BothWay	BothWay	Both switch and link partner can
				send and receive pause frames.
Jack Type		Shows the jack type for each port.
		Ports 1-11, 13-23: RJ-45.
		Ports 12, 24: either RJ-45 or FIBER.
		Ports 25-26: RJ-45, FIBER

The gigabit ports (25 and 26) are optional. They are provided as slide-in module. Each port can be empty (unplugged), copper (type 1GBaseT), or fiber (type 1GSX/LX). The user can change the gigabit modules after the switch is off. The Switch will automatically detect the changes and update the information as soon as the power is up again. Note that the speed of the gigabit module is fixed at 1G.

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