3Com iCV-08, iCV-01a, iCV-03a user manual Appendix D Glossary, Term Definition

Appendix D: Glossary

Appendix D: Glossary

The Glossary section defines the terms used in this User Manual

Term	Definition
Ethernet	Local Area Network technology, originally developed by 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 manufacturers use Ethernet protocol;
	their products may not be compatible.
Gateway	A computer that attaches to a number of networks and routes packets
	between them. The packets can be different protocols at the higher
	levels.
IP	Internet Protocol – The TCP/IP standard protocol defines the IP
	datagram as the unit of information passed across a network.
IP Address	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.
MAC	Medium Access Control - The network layer between the physical and
	the data link layers. Specifically, the physical (hardware) address
	exists in this layer.
MIB	Management Information Base – The database, i.e. set of variables
	maintained by a gateway running SNMP
NMS	Network Management Station
OID	Object Identifier – The variables defined in a MIB
Router	A computer that manages traffic between different network segments
	or different network topologies. It directs the destination IP address.
	The network media can be different, but the higher-level protocols
	must be the same.
SNMP	Simple Network Management Protocol – A standard protocol used to
	monitor IP hosts, networks, and gateways. SNMP defines a set of
	simple operations that can be performed on the OIDs of the MIBs
	managed by the monitored Agents. It employs the UDP/IP transport
	layer to move its object between the Agents and the NMS
TCP/IP	Transmission Control Protocol/ Internet Protocol – A protocol suite
	used by more than 15 million users with a UNIX association and
	widely used to link computers of different kinds.

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