Expand Configuration and Management Manual (H06.21+, J06.10+)

Glossary
Expand Configuration and Management Manual — 529522-013
Glossary - 10
profile modifier
WAN subsystem (ADD DEVICE and ALTER DEVICE commands). Profiles are
provided on NonStop NS-series servers only.
profile modifier. A configuration modifier in a profile. See also profile.
PU. See physical unit (PU).
PVC. See persistence.
QIO. A mechanism for transferring data between processes through a shared memory
segment. The QIO subsystem is preconfigured and started during the system load
sequence.
QIOMON. The QIO Monitor process. QIOMON is responsible for creating a shared data
segment, monitoring clients that use the segment (such as Expand line-handler
processes), and performing functions needed for segment management.
rebalancing algorithm. An algorithm that is run by $NCP that reconsiders pairings of
Expand line-handler processes on each multi-CPU path. If the load is unbalanced,
$NCP changes some Expand line-handler process pairs. The goal of the rebalancing
algorithm is to make the average load factors (LFs) of all the paths in the multi-CPU
path close to equal. See also multipacket frame, Expand line-handler process pair, and
load balancing
REMOTEPASSWORD command. A TACL command that is used to create remote
passwords. You must create one remote password for the local system and one
remote password for each remote system on which a user has an account.
remote system. A term used to refer to the systems in your network other than your local
system. See also local system.
reverse pairing table (RPT). An entry in the multiple path table (MPT). When data is
transmitted to a non-neighbor node over a multi-CPU path, the RPT is used to direct
traffic from the remote node to the Expand line-handler process from which a
connection initiation was received. See also multipacket frame and multiple path table
(MPT).
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.