Service manual

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Intrepid® 6140 Director Installation and Service Manual
Glossary
multimode optical
fiber
A graded-index or step-index optical fiber that allows more than one
mode (light path) to propagate. Contrast with singlemode optical fiber.
N
name server In Fibre Channel protocol, a server that allows N_Ports to register
information. This allows devices to obtain information about other
fabric-attached devices by sending queries to the name server.
nickname An alternate name assigned with a WWN to a director, switch, or
other device in a switched fabric.
NL_Port See node loop port.
node In Fibre Channel protocol, a device (server, storage device, or other
peripheral) that is connected to a switched fabric.
node loop port In Fibre Channel protocol, a connectivity port on an FC-AL device.
An NL_Port communicates with a switched fabric through a director
or switch fabric loop port (FL_Port). See also fabricloop port.
node port In Fibre Channel protocol, a connectivity port on a Fibre Channel
device. An N_Port communicates with a switched fabric through a
director or switch fabric port (F_Port). See also fabric port.
nondisruptive
maintenance
See concurrent maintenance.
N_Port See node port.
O
offline sequence A Fibre Channel primitive sequence transmitted by a port to indicate
it is going offline.
OLS See offline sequence.
open-systems
interconnection
A model that represents a network as a hierarchical structure of
functional layers. Each layer provides a set of functions that can be
accessed and used by the layer above. Layers are independent, and