LevelOne GSW-2600TXM manual Using a Port Mirror for Analysis

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. 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: FIBER or RJ-45
		Ports 25-26: RJ-45, FIBER

3.6.2.2.Using a Port Mirror for Analysis

You can mirror traffic from any source port to a target port for real-time analysis. You can then attach a logic analyzer or RMON probe to the target port and study the traffic crossing the source port in a completely unobtrusive manner. When mirroring port traffic, note that the target port must be included in the same VLAN as the source port. (See “VLAN Table Configuration” on chapter 3.)

You can use the Mirror Configuration screen to mirror one or more ports to the monitor port as shown below.

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