D-Link AirPremier DWL-2210AP Manual page 174

Glossary
• The Broadcast Address
192.168.2.255).
There are a finite number of IP addresses that can exist. Therefore, a local area network typically
uses one of the IANA-designated address ranges for use in private networks. These address
ranges are:
10.0.0.0 to 10.255.255.255
172.16.0.0 to 172.31.255.255
192.168.0.0 to 192.168.255.255
A Dynamic IP Address
or similar mechanism. It is called dynamic because you may be assigned a different IP address
each time you establish a connection.
A Static IP Address
usually required for any host that is running a server, for example, a Web server.
IPSec
IP Security (IPSec) is a set of protocols to support the secure exchange of packets at the
It uses shared public keys. There are two encryption modes: Transport and Tunnel.
• Transport mode encrypts only the data portion (payload) of each packet, but leaves the headers
untouched.
• The more secure Tunnel mode encrypts both the header and the payload.
ISP
An Internet Service Provider (ISP) is a company that provides access to the Internet to individuals
and companies. It may provide related services such as virtual hosting, network consulting, Web
design, etc.
Jitter
Jitter is the difference between the latency (or delay) in packet transmission from one node to
another across a network. If packets are not transmitted at a consistent rate (including Latency),
QoS for some types of data can be affected. For example, inconsistent transmission rates can
cause distortion in VoIP and streaming media.
factors that can impact network performance.
Latency
Latency, also known as delay, is the amount of time it takes to transmit a
receiver. Latency can occur when data is transmitted from the access point to a client and vice
versa. It can also occur when data is transmitted from access point to the Internet and vice versa.
Latency is caused by fixed network factors such as the time it takes to encode and decode a
packet, and also by variable network factors such as a busy or overloaded network.
are designed to minimize latency for high priority network traffic.
LAN
A Local Area Network (LAN) is a communications network covering a limited area, for example,
the computers in your home that you want to network together or a couple of floors in a building.
A LAN
consists of a host number that is all ones (for example,
is an IP address that is automatically assigned to a host by a
is an IP address that is hard-wired for a specific host. A static address is
QoS is designed to reduce jitter along with other
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DHCP server
IP layer.
Packet from sender to
QoS features