Gigax series l2 managed switch user guide – Asus GigaX2048 User Manual

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GigaX Series L2 Managed Switch User Guide

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" section.

NIC

Network Interface Card

An adapter card that plugs into your computer and provides 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 connection have to

follow the rules of the protocol.

QoS Quality of Service.

Defined in 802.1Q. For datacommunication network

performance, QoS characteristics are bandwidth, delay, and

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