the protocol allow a host to inform its local router, using Host

 

Membership Reports that it wants to receive messages addressed to

 

a specific multicast group. All hosts conforming to level 2 of the IP

 

multicasting specification require IGMP.

IEEE

It is the Institute of Electrical and Electronic Engineers. The IEEE is a

 

professional technical body promoting the development and

 

application of technology.

IP Address

At the moment, IP address is a 32-bit binary digit that defines each

 

sender or receiver of information across an IP network.

IPSec

Internet Protocol Security. It is a suite of protocols used to implement

 

secure exchange of packets at the IP layer.

ISP

Internet Service Provider. It is a company that provides individuals or

 

corporations with Internet access and other related services.

LAN

Local Area Network is a group of computers and devices sharing a

 

common communication medium within a small geographical area.

Latency

Latency is a time-delay.

MAC Address

MAC is the abbreviation for Media Access Control. The MAC address

 

is a unique number assigned by the manufacturer to any Ethernet

 

networking device, such as a network adapter or router that allows a

 

network to identify the hardware. Unlike IP addresses, this number is

 

permanent and is therefore a valuable identifier.

Mbps

Mega bits per second. It is a unit of measurement for data

 

transmission indicating a million bits per second.

MDI

Medium Dependent Interface. On a network hub/switch, a MDI port

 

(uplink port) connects to another hub/switch using a straight cable.

 

To connect a MDI port to a computer, a crossover cable is used.

MDI-X

Medium Dependent Interface Crossed. On a network hub/switch, a

 

MDI-X port connects to a computer using a straight cable. To

Multicast

connect a MDI-X port to another hub/switch, use a crossover cable.

A multicast is a packet that is sent to a subset of end stations in a

 

LAN, or VLAN that belong to a multicast group. If the network is set up

 

correctly, a multicast can only be sent to an end station if it has

 

joined the relevant group.

NAT

Network Address Translations multiplexes multiple private IP addresses

 

on the LAN to a single public IP address on the Internet.

OFDM

Orthogonal Frequency Division Multiplexing. It is a modulation

 

scheme employed by the IEEE 802.11g standard, which combines

 

numerous signals of different frequencies to form a single signal for

 

transmission over a medium.

Packet Filtering

This is a means of discarding unwanted network traffic based on its

 

originating addresses or the type of data transmitted.

 

 

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