Fluke Network Tester Full-Duplex, Half-Duplex, Icmp Internet Control and Message Protocol, Hops

NetTool

Users Manual

Full-Duplex

10Base-T and 100Base-TX network operation using a switching Hub to establish a point-to-point connection between LAN nodes that allows simultaneous sending and receiving of data packets. Full-duplex performance is twice that of half-duplex performance. A 10Base-T full- duplex network is capable of 20 Mb/s data throughput, while a full-duplex 100Base-TX network is capable of 200 Mb/s throughput.

Half-Duplex

Network operation is one direction at a time only; either sending or receiving data packets, but not both at the same time.

ICMP (Internet Control and Message Protocol)

A communication protocol used by every device that uses IP. ICMP reports errors that occur during the delivery of packets on the network.

IP (Internet Protocol)

IP is the network layer protocol for the TCP/IP suite.

IP Address

An IP address is a series of four numbers separated by dots (“.”), each of which is between 0 and 255. An IP address must be unique to a machine or the network will not be able to properly deliver network information to that machine. The address is made up of a network number, a subnet number, and a node number.

Hops

Most commonly defined as the number of routers traveled by a frame to reach its destination.

IP Network Number

The network number consists of the first two numbers of a device IP address on a network.

Hub (Repeater)

Today, most often referred to in 10BASE-T networks. A 10BASE-T Hub is essentially a multiport repeater Hub with each segment dedicated to a single 10BASE-T connection.

IPX (Internetwork Packet Exchange)

IPX is the network layer protocol for Novell’s NetWare protocol suite.

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