Expand Configuration and Management Manual (H06.03+)

Glossary
Expand Configuration and Management Manual—529522-002
Glossary-16
route
route. The sequence of paths that data follows when traveling between source and
destination nodes. There is only one active route at a time between communicating
nodes. See also path and best-path route.
RPT. See reverse pairing table (RPT).
satellite-connect line-handler process. An Expand line-handler process that implements
the satellite-efficient version of the High-Level Data Link Control (HDLC) protocol,
HDLC Extended Mode. This type of Expand line-handler process is provided for use
with satellite connections but can also be used to manage terrestrial lines.
SCF. See Subsystem Control Facility (SCF)..
SCP. See Subsystem Control Point (SCP).
selector byte. The last (rightmost) byte in an Asynchronous Transfer Mode (ATM) address.
The selector byte is used to route incoming call requests to the correct ATM subsystem
client.
sensitive command. A command that can only be issued by a user or program that has
super group capabilities. Compare nonsensitive command.
ServerNet adapter. A customer-replaceable unit (CRU) that connects peripheral devices to
the rest of the system through a ServerNet bus interface (SBI).
ServerNet cluster. ServerNet clusters enable multiple NonStop NS-series servers to work
together and appear to client applications as one large processing entity. ServerNet
clusters extend the ServerNet X and Y fabrics outside the system boundary and allow
the ServerNet protocol to be used for intersystem messaging.
ServerNet cluster monitor process. The manager process, called $ZZSCL, for the
ServerNet cluster subsystem on NonStop NS-series servers. $ZZSCL is responsible
for maintaining configuration information about a ServerNet cluster.
ServerNet LAN systems access (SLSA) subsystem. A subsystem of the HP NonStop™
Kernel operating system for configuration and management of ServerNet local area
network (LAN) objects in G-series RVUs. The SLSA subsystem enables the protocol
input-output (I/O) processes (IOPs) and drivers to access the ServerNet adapters.
ServerNet system area network (ServerNet SAN). A wormhole-routed, full-duplex,
packet-switched, point-to-point network designed with special attention to reducing
latency and ensuring reliability. The ServerNet SAN provides the communications path
used for interprocessor messages and for communication between processors and
input/output (I/O) devices.
ServerNet wide area network (SWAN) concentrator. An HP data communications
peripheral that provides connectivity to a NonStop NS-series server. The SWAN
concentrator supports both synchronous and asynchronous data over RS-232, RS-
449, X.21, and V.35 electrical and physical interfaces.