User`s guide

Glossary
GL-5
6700-A2-GY31-70
July 1999
A device operating on a private line where no dialing is necessary to make the connection.
A dial device can be configured to run on a leased line. Some local leased-line devices
can be switched over to dial mode while attached to a leased line.
Local Loopback. A diagnostic test in which data is looped through data communications
equipment from the DTE interface and back to the DTE.
A test in which the modem’s transmit voice frequency (VF) signal is looped to its receiver.
A device installed in the carrier(s) connected to the PC.
An analog loopback test that connects the device’s transmitter output back into the
device’s receiver input. The local loopback test is disruptive and will disconnect the local
device from a remote device. The remote device remains disconnected from the local
device after the test.
Line Signal Detect. A signal between the DTE and the device indicating energy exists on
the transmission circuit.
An NMS alert that is a higher priority than Minor and a lower priority than Critical.
A condition indicating that the device is holding the dial line busy to prevent receiving calls.
Megabyte or megabytes. A unit of memory measurement equal to approximately one
million bytes (typically 1,048,576 bytes).
MultiChannel MultiPoint. A circuit card that enables the support of up to six independent
applications over a single multipoint digital facility. The MCMP capability can support up to
40 tributary DSUs, each optioned with an MCMP card.
Management Information Base. A database of managed objects used by SNMP to provide
network management information and device control.
The lowest priority alert reported by NMS.
Microcom Networking Protocol. Levels 2-4 of this protocol, similar to ITU V.42, detect and
correct data errors caused by telephone line noise and signal distortion. Level 5, similar to
ITU V.42bis, includes data compression.
Modem Sharing Device. Allows from 2 to 4 physical ports to share a communication
channel.
A unique number associated with a host that identifies it to other hosts during network
transactions. This is the network portion of an IP address. In the Internet, assigned
network addresses are globally unique.
Composed of two windows displaying the condition of all or part of the network. The
Geographic Map window displays the geographic location of the network elements. The
Network Hierarchy window displays the hierarchical organization of the devices at each
site. Access the Network Map by selecting the Displays menu via the Main Menu.
A connection or switching point on the network.
A condition indicating that the threshold for the number of non-answered calls per sample
has been exceeded.
A condition indicating that NMS is receiving no response from a local control device.
The state of a telephone or modem that is connected to the network.
Object IDentifier. Used in SNMP.
The state of a modem that is connected to and communicating with another modem.
leased
LL
local analog loopback
local device
local loopback test
LSD
major alert
make busy mode
MB
MCMP
MIB
minor alert
MNP
MSD
network address
network map
node
non-answering
modem
no response
off-hook
OID
online