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Glossary
Table 35. Glossary
AL_PA or Arbitrated
Loop Physical Address
Arbitration
Close (CLS)
Current Fill Word
Duplex Cable
Fiber Optics
Fibre Channel
LED
Gb/s
Node
Open (OPN)
Protocol
SCSI
SFP
Topology
Transceiver
© Copyright IBM Corp. 2004
A one-byte value used to identify a port in an Arbitrated
Loop topology. The value of the AL_PA corresponds to bits
7:0 of the 24-bit Native Address Identifier.
The process of selecting one respondent from a group
requesting service at the same time.
An Arbitrated Loop protocol used to terminate a loop
circuit.
The fill word that the Loop Port State Machine uses when
a fill word is to be transmitted.
Two fibers in one cable suitable for duplex transmission.
Light transmission through optical fibers for
communication or signaling.
Fibre Channel is a data transfer interface technology that
maps several common transport protocols including IP
and SCSI, allowing it to merge high-speed I/O and
networking functionality in a single connectivity
technology. Fibre channel is an open standard as defined
by ANSI and OSI standards and operates over copper and
fiber optic cabling at distances of up to 10 kilometers. It is
unique in its support of multiple interoperable topologies
including point-to-point, arbitrated-loop and switching and
it offers several qualities of service for network
optimization. With its large packet sizes, Fibre Channel is
ideal for storage, video, graphic and mass data transfer
applications.
Light-emitting diode. A status indicator on a switch.
Gigabits per second.
An entity with one or more N_Ports or NL_Ports.
An Arbitrated Loop protocol used to establish a loop
circuit.
A data transmission convention which may include timing,
control, formatting, error detection with correction and
data representation.
Small computer system interface. Standard interface for
storage modules.
Small form-factor pluggable transceiver. These
transceivers are fully compliant with FC-PI and MSA
standards and occupy less than half the board space of
the existing GBIC products.
The logical and/or physical arrangement of stations on a
network. Fibre Channel topologies include point-to-point,
Arbitrated Loop, and switched fabric.
A device that converts one form of signaling to another for
both transmission and reception. SFPs and GBICs are
transceivers.
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