3Com 3CBLSF26H manual Lan, Tcp/Ip

Item		Description
		Local Area Network. A network of end stations (such as PCs, printers,
LAN		servers) and network devices (hubs and switches) that cover a relatively
		small geographic area (usually not larger than a floor or building). LANs
		are characterized by high transmission speeds over short distances (up
		to 1000 meters).
		Data Link layer in the ISO 7-Layer Data Communications Protocol. This
Layer 2		is related directly to the hardware interface for the network devices and
		passes on traffic based on MAC addresses.
MAC		Media Access Control. A protocol specified by the IEEE for determining
		which devices have access to a network at any one time.
		Media Access Control Address. Also called the hardware, physical or
MAC Address		Ethernet address. A layer 2 address associated with a particular network
		device. Most devices that connect to a LAN have a MAC address
		assigned to them as they are used to identify other devices in a network.
		MAC addresses are 6 bytes long.
		A Network is a collection of computers and other computer equipment
Network		that are connected for the purpose of exchanging information or sharing
		resources. Networks vary in size, some are within a single room, others
		span continents.
		Packet Internet Groper. An Internet utility used to determine whether a
Ping		particular IP address is online. It is used to test and debug a network by
		sending out a packet and waiting for a response.
Protocol		A set of rules for communication between devices on a network. The
		rules dictate format, timing, sequencing and error control.
RJ-45		A standard connector used to connect Ethernet networks. The "RJ"
		stands for "registered jack."
		A computer in a network that is shared by multiple end stations. Servers
Server		provide end stations with access to shared network services such as
		computer files and printer queues.
		Small Form Factor Pluggable (SFP) Connectors are based on an open
SFP		standard that enables hot swapping of various types of fiber optic and
		copper-based transceivers into the host equipment.
Subnet Address		An extension of the IP addressing scheme that allows a site to use a
		single IP network address for multiple physical networks.
		A subnet mask, which may be a part of the TCP/IP information provided
Subnet Mask		by your ISP, is a set of four numbers configured like an IP address. It is
		used to create IP address numbers used only within a particular network
		(as opposed to valid IP address numbers recognized by the Internet,
		which must assigned by InterNIC).
Subnets	A network that is a component of a larger network.
		A device that interconnects several LANs to form a single logical LAN
Switch		that comprises of several LAN segments. Switches are similar to
		bridges, in that they connect LANs of a different type; however they
		connect more LANs than a bridge and are generally more sophisticated.
		Transmission Control Protocol/Internet Protocol. This is the name for
TCP/IP		two of the most well-known protocols developed for the interconnection
		of networks. Originally a UNIX standard, TCP/IP is now supported on
		almost all platforms, and is the protocol of the Internet.

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