D-Link DWL-2200AP [174/192] Jitter

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Glossary
• The Broadcast Address consists of a host number that is all ones (for example,
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 is an IP address that is automatically assigned to a host by a DHCP
server 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 is an IP address that is hard-wired for a specific host. A static address is
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 IP
layer. 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. QoS is designed to reduce jitter
along with other factors that can impact network performance.
Latency
Latency, also known as delay, is the amount of time it takes to transmit a Packet from sender
to 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.
QoS features 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

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