Tripp Lite SNMP Solo MT-SE-37/02 User Manual

Appendix

33

The Glossary section defines the terms used in the SNMP Solo
environment.

Implemented SNMP applications in network elements

(hosts). Agents perform the network management’s
functions as requested by the network administrator from
an NMS.

Non-powered contact type inputs—switch, relay contact,

open-collector.

Form C dry-contact outputs which are common, normally

open, or normally closed.

Local Area Network technology, originally developed by the

Xerox Corporation, can link up to 1,024 nodes in a bus
network. EtherNet provides raw data transfer in a rate of
10 megabits/sec. with actual throughputs in 2 to 3
megabits/sec. using a baseband (single-channel)
communication technique. EtherNet uses carrier sense
multiple access collision detection (CSMA/CD) that
prevents network failures when two devices attempt to
access the network at the same time. LAN hardware
manufactures use EtherNet protocol; their products may
not be compatible.

A computer that attaches to a number of networks and

routes packets between them. The packets can be
different protocols at the higher levels.

Internet Protocol—The TCP/IP standard protocol defines

the IP datagram as the unit of information passed across
a network.

Internet Protocol Address—A 32-bit address assigned to

hosts participating in a TCP/IP network. The IP address
consists of network and host portions. It is assigned to
an interconnection of a host to a physical network.

Medium Access Control—The network layer between the

physical and the datalink layers. Specifically, the physical
(hardware) address exists in this layer.

Management Information Base—The database, i.e., set of

variables maintained by a gateway running SNMP.

Normally Closed —Refers to a contact switch that is

normally closed.

Network Interface Controller—The hardware interface to

the physical connection to the network.