IBM AA-RWF3A-TE the fabric. See also Eport, Fport, GPort, be called a management station or host

	them as required to other devices in the fabric. May also be
	referred to as a directory service.
switch	Hardware that routes frames according to FC protocol and is
	controlled by software.
switch port	A port on a switch. Switch ports can be E_Ports, F_Ports, or
	FL_Ports.
SWL	Short wavelength. A type of fiber optic cabling that is based
	on 850 mm lasers and supports link speeds up to 2 Gb/s.
	May also refer to the type of transceiver.
throughput	The rate of data flow achieved within a cable, link, or system.
	Usually measured in bits per second (b/s).
topology	With respect to FC, the configuration of the FC network and
	the resulting communication paths allowed. There are three
	possible topologies:
	• Point-to-point: A direct link between two communication
	ports
	• Switched fabric: Multiple N_Ports linked to a switch by
	F_Ports
	• Arbitrated loop: Multiple NL_Ports connected in a loop
transmission word	A group of transmission characters.
trap (SNMP)	The message sent by an SNMP agent to inform the SNMP
	management station of a critical error. See also SNMP.
U_Port	Universal port. A switch port that can operate as a G_Port,
	E_Port, F_Port, or FL_Port. A port is defined as a U_Port when it
	is not connected or has not yet assumed a specific function in
	the fabric. See also E_port, F_port, G_Port.
well-known ad-	With respect to FC, a logical address defined by the FC
dress	standards as assigned to a specific function and stored on the
	switch.
workstation	A computer used to access and manage the fabric. May also
	be called a management station or host.
WWN	World wide name. An identifier that is unique worldwide.
	Each entity in a fabric has a distinct WWN.
zone	A set of devices and hosts attached to the same fabric and
	configured as being in the same zone. Devices and hosts
	within the same zone have access permission to others in the

154Glossary