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Glossary–36
edge switch 2/24 service manual
Glossary
network management
The broad subject of managing computer networks. There exists a wide variety of software
and hardware products that help network system administrators manage a network. Network
management covers a wide area, including security, performance, and reliability.
never principal
The setting that prevents the product from becoming the principal switch for a fabric.
NIC
See
network interface card
.
nickname
Alternate name assigned to a world-wide name for a node, Director or Edge Switch in the
fabric.
node
In Fibre Channel protocol, an end device (server or storage device) that is or can be connected
to a switched fabric. See also
device
.
node port
N_Port. Physical interface within an end device that can connect to an fabric port (F_Port) on a
switched fabric or directly to another N_Port (in point-to-point communications). See also
bridge port
;
expansion port
;
fabric port
;
generic port
;
segmented expansion port
.
node port identifier
N_Port ID. In Fibre Channel protocol, a unique address identifier by which an N_Port is
uniquely known. It consists of a domain (most significant byte), an area, and a port, each 1
byte long. The N_Port ID is used in the source identifier (S_ID) and destination identifier
(D_ID) fields of a Fibre Channel frame.
nondisruptive maintenance
See
concurrent maintenance
.
nonvolatile random access memory
NV-RAM. RAM that retains its content when the device power is turned off.
N_Port
See
node port
.
N_Port ID
See
node port identifier
.
NV-RAM
See
nonvolatile random access memory
.