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switch
switch port
SWL
throughput
topology
transmission word
trap (SNMP)
U_Port
well-known ad-
dress
workstation
WWN
zone
154
Glossary
them as required to other devices in the fabric. May also be
referred to as a directory service.
Hardware that routes frames according to FC protocol and is
controlled by software.
A port on a switch. Switch ports can be E_Ports, F_Ports, or
FL_Ports.
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.
The rate of data flow achieved within a cable, link, or system.
Usually measured in bits per second (b/s).
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
A group of transmission characters.
The message sent by an SNMP agent to inform the SNMP
management station of a critical error. See also SNMP.
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.
With respect to FC, a logical address defined by the FC
standards as assigned to a specific function and stored on the
switch.
A computer used to access and manage the fabric. May also
be called a management station or host.
World wide name. An identifier that is unique worldwide.
Each entity in a fabric has a distinct WWN.
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
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