EMC Connectrix B Series Hardware Reference Manual page 103

Glossary
N
N_Port Node port. A port on a node that can connect to a Fibre Channel port
or to another N_Port in a point-to-point connection. See also NL_Port
and Nx_Port.
Name Server The term frequently used to indicate Simple Name Server. See also
SNS.
NDMP Network Data Management Protocol. Used for tape backup without
using server resources.
Negotiate See Auto-Negotiate Speed and Autosense.
NL_Port Node loop port. A node port that has arbitrated loop capabilities.
Used to connect an equipment port to the fabric in a loop
configuration through an FL_Port. See also N_Port and Nx_Port.
Node A Fibre Channel device that contains an N_Port or NL_Port.
Node Count The number of nodes attached to a fabric.
node name The unique identifier for a node, communicated during login and
port discovery.
Nonparticipating A mode in which an L_Port in a loop is inactive and cannot arbitrate
Mode or send frames, but can retransmit any received transmissions. This
mode is entered if there are more than 127 devices in a loop and an
AL_PA cannot be acquired. See also L_Port and Participating Mode.
NOS Not operational. The NOS primitive sequence is transmitted to
indicate that the FC_Port transmitting the NOS has detected a link
failure or is offline, waiting for the offline sequence (OLS) to be
received.
NS Name Server. The service provided by a fabric switch that stores
names, addresses, and attributes related to Fibre Channel objects. Can
cache information for up to 15 minutes. Also known as "Simple Name
Server" or as a "directory service." See also Simple Name Server (SNS).
NSCAM Name Server Cache Manager. Updates the Name Server (NS)
databases across switches as a background task.
Nx_Port A node port that can operate as either an N_Port or NL_Port.
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EMC Connectrix B Series DS-8B3 and DS-16B3 Hardware Reference Manual