Asus SL1200 User Manual

Page 172

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Chapter 15 - Glossary

ASUS SL1200

Monitor

Also called “Roving Analysis”, allow you to attach a net-

work analyzer to one port and use it to monitor the traffics

of other ports on the switch.

network

mask

A network mask is a sequence of bits applied to an IP

address to select the network ID while ignoring the host

ID. Bits set to 1 mean “select this bit” while bits set to 0

mean “ignore this bit.” For example, if the network mask

255.255.255.0 is applied to the IP address 100.10.50.1,

the network ID is 100.10.50, and the host ID is 1. See also

binary, IP address, subnet, “IP Addresses Explained” sec-

tion.

NIC

Network Interface Card
An adapter card that plugs into your computer and pro-

vides the physical interface to your network cabling, which

for Ethernet NICs is typically an RJ-45 connector. See

Ethernet, RJ-45.

packet

Data transmitted on a network consists of units called

packets. Each packet contains a payload (the data), plus

overhead information such as where it came from (source

address) and where it should go (destination address).

ping

Packet Internet (or Inter-Network) Groper
A program used to verify whether the host associated with

an IP address is online. It can also be used to reveal the IP

address for a given domain name.

port

A physical access point to a device such as a computer or

router, through which data flows into and out of the device.

protocol

A set of rules governing the transmission of data. In order

for a data transmission to work, both ends of the connec-

tion have to follow the rules of the protocol.

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