Linksys SRW224G4P User Manual Download Page 61

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Glossary

24-Port 10/100 + 4-Port Ggabt Swtch wth WebVew and Power over Ethernet

Appendx B

CoS (Class of Servce) -

The 802 .1p priority scheme .

CoS provides a method for tagging packets with priority
information . A CoS value between 0-7 is added to the
Layer II header of packets, where zero is the lowest priority
and seven is the highest .

DDNS (Dynamc Doman Name System) -

Allows the

hosting of a website, FTP server, or e-mail server with a
fixed domain name (e .g ., www .xyz .com) and a dynamic IP
address .

Default Gateway -

A device that forwards Internet traffic

from your local area network .

DHCP (Dynamc Host Confguraton Protocol) -

networking protocol that allows administrators to assign
temporary IP addresses to network computers by “leasing”
an IP address to a user for a limited amount of time, instead
of assigning permanent IP addresses .

DHCP Clents -

An Internet host using DHCP to obtain

configuration parameters, such as a network address .

DHCP Server -

An Internet host that returns configuration

parameters to DHCP clients .

DNS (Doman Name Server) -

The IP address of your

ISP’s server, which translates the names of websites into
IP addresses .

Doman -

A specific name for a network of computers .

Download -

To receive a file transmitted over a network .

DSL (Dgtal Subscrber Lne) -

An always-on broadband

connection over traditional phone lines .

DSCP (DffServ Code Pont) -

Provides a method of

tagging IP packets with QoS priority information .

Dynamc IP Address -

A temporary IP address assigned

by a DHCP server .

EIGRP (Enhanced Interor Gateway Routng Protocol)
-

Provides fast convergence, support for variable-length

subnet mask, and supports multiple network layer
protocols .

Encrypton -

Encoding data transmitted in a network .

Ethernet -

IEEE standard network protocol that specifies

how data is placed on and retrieved from a common
transmission medium .

Frmware -

The programming code that runs a networking

device .

Flow Control -

Enables lower speed devices to

communicate with higher speed devices . This is
implemented by the higher speed device refraining from
sending packets .

FTP (Fle Transfer Protocol) -

A protocol used to transfer

files over a TCP/IP network .

Full Duplex -

The ability of a networking device to receive

and transmit data simultaneously .

GARP (General Attrbutes Regstraton Protocol) -

Registers client stations into a multicast domain .

Gateway -

A device that interconnects networks with

different, incompatible communications protocols .

GBIC (GgaBt Interface Converter) -

A hardware module

used to attach network devices to fiber-based transmission
systems . GBIC converts the serial electrical signals to serial
optical signals and vice versa .

GVRP (GARP VLAN Regstraton Protocol) -

Registers

client stations into a VLANs .

Half Duplex -

Data transmission that can occur in two

directions over a single line, but only one direction at a
time .

HTTP (HyperText Transport Protocol) -

The

communications protocol used to connect to servers on
the World Wide Web .

HTTPS (HyperText Transport Protocol Secure) -

extension to the standard HTTP protocol that provides
confidentiality by encrypting the traffic from the website .
By default this protocol uses TCP port 443 .

ICMP (Internet Control Message Protocol) -

Allows the

gateway or destination host to communicate with the
source host . For example, to report a processing error .

IGMP (Internet Group Management Protocol) -

Allows

hosts to notify their local switch or router that they want
to receive transmissions assigned to a specific multicast
group .

IP (Internet Protocol) -

A protocol used to send data over

a network .

IP Address -

The address used to identify a computer or

device on a network .