3com 3CRWE52196 User Guide

Page of 120
108
G
LOSSARY
SSID
Service Set Identifier. Some vendors of wireless products use SSID 
interchangeably with ESSID.
Subnet Address
An extension of the IP addressing scheme that allows a site to use a single 
IP network address for multiple physical networks. 
Subnet mask
A subnet mask, which may be a part of the TCP/IP information provided 
by your ISP, is a set of four numbers configured like an IP address. It is 
used to create IP address numbers used only within a particular network 
(as opposed to valid IP address numbers recognized by the Internet, 
which must assigned by InterNIC).
Subnets
A network that is a component of a larger network. 
Switch
A device that interconnects several LANs to form a single logical LAN that 
comprises of several LAN segments. Switches are similar to bridges, in 
that they connect LANs of a different type; however they connect more 
LANs than a bridge and are generally more sophisticated.
TCP/IP
Transmission Control Protocol/Internet Protocol. This is the name for two 
of the most well-known protocols developed for the interconnection of 
networks. Originally a UNIX standard, TCP/IP is now supported on almost 
all platforms, and is the protocol of the Internet.
TCP relates to the content of the data travelling through a network — 
ensuring that the information sent arrives in one piece when it reaches its 
destination. IP relates to the address of the end station to which data is 
being sent, as well as the address of the destination network. 
Traffic
The movement of data packets on a network. 
WAN
Wide Area Network. A network that connects computers located in 
geographically separate areas (for example, different buildings, cities, or 
countries). The Internet is an example of a wide area network. 
WECA
Wireless Ethernet Compatibility Alliance. An industry group formed to 
certify cross vendor interoperability and compatibility of 802.11b wireless 
networking products and to promote the standard for enterprise, small 
business and home environments. (see also 802.11b, Wi-Fi)