Netgear 05200007 User Manual

4

Glossary

The process of screening a packet for certain characteristics, such as source address, destination address, or 
protocol. Filtering is used to determine whether traffic is to be forwarded, and can also prevent unauthorized 
access to a network or network devices.

When a frame is received on an input port on a switch, the address is checked against the lookup table. If the 
lookup table has recorded the destination address, the frame is automatically forwarded on an output port.

A fully qualified domain name consists of a host and domain name, including top-level domain. For 
example, www.netgear.com is a fully qualified domain name. www is the host, netgear is the second-level 
domain, and.com is the top level domain. A FQDN always starts with a host name and continues all the way 
up to the top-level domain name, so www.parc.xerox.com is also a FQDN. Routers can use FQDN to 
uniquely identify their address on the Internet rather than an IP address.

A local device, usually a router, that connects hosts on a local network to other networks.

Institute of Electrical and Electronics Engineers. This American organization was founded in 1963 and sets 
standards for computers and communications. 

Internet Engineering Task Force. An organization responsible for providing engineering solutions for TCP/
IP networks. In the network management area, this group is responsible for the development of the SNMP 
protocol.