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 N_Port.
SWL
short-wavelength. A type of fiber optic cabling that is based on 850 mm lasers and supports link
speeds up to 32 Gbps. May also refer to the type of transceiver.
T
throughput
The rate of data flow achieved within a cable, link, or system. Usually measured in bits per second.
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 character
A 10-bit character encoded according to the rules of the 8b/10b algorithm.
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
U
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
on page 42.
W
well-known address
With respect to FC, a logical address defined by the FC 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.
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