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gateway. Hardware that connects incompatible networks by providing the necessary translation for both hardware
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and software.
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GBIC. Gigabit Interface Converter. A removable serial transceiver module designed to provide gigabaud capability for
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fibre channel (FC) and other products that use the same physical layer.
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Gbps. Gigabits per second.
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GBps. Gigabytes per second.
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gigabit. A unit of information equal to one billion bits.
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hardware translative mode. Method for achieving address translation. The following two hardware translative modes
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are available to a QuickLoop enabled switch:
v Standard Translative Mode: Allows public devices to communicate with private devices across the fabric.
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v QuickLoop Mode: Allows private devices to communicate with other private devices across the fabric.
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HBA. Host bus adapter
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ID. Identification.
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interswitch link (ISL). A fibre link between two switches.
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IP. Internet protocol
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ISL. Interswitch link. A fibre link between two switches.
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isolated E_port. A port that is online but not operational between switches due to overlapping domain ID or
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nonidentical parameters such as E_D_TOVs.
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IT. Information technology.
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JBOD. Just a bunch of drives.
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L_port. A loop capable fabric port or node.
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LAN. See local area network .
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LED. See light-emitting diode .
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light-emitting diode. A semiconductor chip that gives off visible or infrared light when activated.
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LIP. Loop initialization procedure.
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LLI. Low level interface.
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local area network (LAN). A computer network located on a user's premises within a limited geographic area.
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loop. A configuration of devices (for example, JBODS) connected to the fabric by way of an FL_port interface card.
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loopback test. A test in which signals are looped from a test center through a data set or loopback switch and back
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to the test center for measurement. See also loop .
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LWL. Long wavelength
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MAP. Maintenance action plan
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MIB. Management information base. The information that is on an agent. It is an abstraction of configuration and
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status information.
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multicast. Multicast is used when multiple copies of data need to be sent to designated multiple destinations.
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N_port. The N_port is the designation of an equipment port connected to the fabric.
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NL_port. The NL_port is the designation of an equipment port connected to the fabric in a loop configuration using
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an FL_port.
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Glossary
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