NonStop S-Series Planning and Configuration Guide (G06.25+)

Glossary
HP NonStop S-Series Planning and Configuration Guide—523303-015
Glossary-65
network routing table (NRT)
network routing table (NRT). A table that resides in each processor in each system in a
network. The NRT associates each destination system with the logical device (LDEV)
number of the best-path route Expand line-handler process to use to send messages
to that system. See also network control process
.
network topology. The physical layout of components that define a system, a local area
network (LAN), or a wide area network (WAN).
neutral. (1) The conductor used as the primary return for current during normal operation of
electrical equipment. (2) The junction of the legs in a wye circuit. See also wye
.
NIS. See Network Information Service (NIS).
nld utility. (1) The utility that collects, links, and modifies code and data blocks from one or
more object files to produce a target TNS/R native object file. The
nld utility is similar
to the Binder program used in the TNS development environment. (2) The native link
editor invoked during system generation to build the TSYSCLR and TSYSDP2 files.
NNA. See node-numbering agent (NNA).
NNA PIC. See node-numbering agent (NNA) plug-in card (PIC).
node. (1) A uniquely identified computer system connected to one or more other computer
systems in a network. See also Expand node
and ServerNet node. (2) An endpoint in a
ServerNet fabric, such as a processor or ServerNet addressable controller (SAC).
node number. A number used to identify a member system in a network. The node number
is usually unique for each system in the network. See also node
and ServerNet node
number.
node-numbering agent (NNA). A field-programmable gate array (FPGA) in a single-mode
fiber-optic (SMF) plug-in card (PIC) that translates the node number of each ServerNet
packet entering or exiting the external ServerNet fabrics.
node-numbering agent (NNA) plug-in card (PIC). A plug-in card (PIC) for the modular
ServerNet expansion board (MSEB) that supports the node-numbering agent (NNA)
interface.
node routing ID. See ServerNet node routing ID.
noncanonical input mode. For an Open System Services (OSS) process, a terminal input
mode in which data is made available to the process when a timer expires or when a
certain number of characters have been entered. Noncanonical data is not grouped
into logical lines of input. This mode is sometimes called block mode or transparent
mode. Contrast with canonical input mode
.
nonclustered. Lacking the quality of belonging to a cluster.