NS3000/iX NMMGR Screens Reference Manual - Edition 9 (36922-90040)

297
R
RDBA Remotedata baseaccess.Anetwork
service that allows users to access data
bases on remote nodes.
reachable network A network that can
be accessed (with additional internet hops
possibly required) by a particular gateway.
remote connect device Anasynchronous
device that is indirectly connected to a DTC
through a modem and telephone hook-up or
through a PAD.
remote node Any network node that is
physically separate from the node you are
currently using or referring to.
retransmission count (N2) The
maximum number of times a frame will be
retransmitted following the expiration of
the Retransmission Timer, T1.
retransmission timer (T1) The length of
time that a transmitter will wait for an
acknowledgment from a destination
address before attempting to retransmit a
frame. When choosing this value, factors
like the line speed and maximum frame
size should be taken into account.
RFA Remote file access. A network service
that allows users to access file and devices
on remote nodes.
router network See point-to-point.
routing The path that packets or
fragments of a message take through a
network to reach a destination node.
RMP Remote Maintenance Protocol. HP
proprietary protocol used in DTC
management.
RPM Remote Process Management. A
network service that allows a process to
programmatically initiate and terminate
other processes throughout a network from
any node on the network.
RS-232-C The Electronic Industries
Association (EIA) Level 1 protocol
specification that defines electrical circuit
functions for 25 connector pins. HP
provides two implementations of this
standard: a 3-pin version for direct
connections up to a distance of 15 meters
(50 feet), and a version which makes use of
additional circuits and can be used for
either modem or direct connections.
RS-422 The Electronic Industries
Association (EIA) Level 1 protocol
specification implemented by HP in a 5-pin
version which can be used for direct device
connection up to a distance of 1500 meters
(4000 feet).
S
security string An alphanumeric
character string that functions as a
password for dial links. The security string
is used by the dial IP protocol.
serial device Any device that is attached
to and communicates with a computer by
means of a serial transmission interface.
Terminals, printers, and plotters are
among the devices that communicate
serially with HP e3000 computers.
serial transmission A method of
transferring data in which characters are
transmitted one bit at a time and received
one bit at a time in the order of
transmission. This transmission scheme is
employed by devices connected to the
system via the DTC.
session-accepting device A terminal or
personal computer running in terminal-
emulation mode that is able to establish an
interactive (conversational) session with an
HP e3000 computer. Also referred to as a
logon device.