User Guide

Glossary 629
Nortel WLAN Security Switch 2300 Series Configuration Guide
type, length, and value See TLV.
U-NII Unlicensed National Information Infrastructure. Three unlicensed frequency bands of 100 MHz each
in the 5 GHz band, designated by the U.S. Federal Communications Commission (FCC) to provide high-speed
wireless networking. The three frequency bands—5.15 GHz through 5.25 GHz (for indoor use only),
5.25 GHz through 5.35 GHz, and 5.725 GHz through 5.825 GHz—were allocated in 1997.
Unlicensed National Information Infrastructure See U-NII.
user A person who uses a client. In a Nortel WLAN 2300 System, users are indexed by username and
associated with authorization attributes such as user group membership.
user wildcard A Nortel convention for matching fully qualified structured usernames or sets of
usernames during authentication by means of known characters plus two special “wildcard” characters.
Double asterisks (**) represent all usernames. A single asterisk (*) can appear either before or after the
delimiter in a user wildcard and can represent any number of characters up to the next delimiter. A delimiter
can be an at (@) sign or a dot (.). See also MAC address wildcard; VLAN wildcard.
user group A collection of users with the same authorization attributes.
vendor-specific attribute See VSA.
virtual LAN See VLAN.
VLAN Virtual LAN. A set of ports that share a single Layer 2 network. Because the ports that constitute a
VLAN can be on a single network device or multiple devices, VLANs enable you to partition a physical
network into logical networks that meet the needs of your organization. You can divide a single device into
multiple logical Layer 2 switches, with each VLAN operating as a separate switch, or make multiple devices
members of multiple logical Layer 2 networks. By default, all WLAN—Security Switch (WSS) switch ports
are members of VLAN 1, which is named default.
VLAN wildcard A Nortel convention for applying the authentication, authorization, and accounting
(AAA) attributes in the location policy on an WSS switch to one or more users, based on a virtual LAN
(VLAN) attribute. To specify all VLANs, use the double-asterisk (**) wildcard characters. To match any
number of characters up to, but not including a delimiter character in the wildcard, use the single-asterisk
wildcard. Valid VLAN wildcard delimiter characters are the at (@) sign and the dot (.). See also location
policy; MAC address wildcard; user wildcard.
Voice over IP See VoI P.
VoIP Voice over IP. The ability of an IP network to carry telephone voice signals as IP packets in
compliance with International Telecommunications Union Telecommunication Standardization Sector
(ITU-T) specification H.323. VoIP enables a router to transmit telephone calls and faxes over the Internet with
no loss in functionality, reliability, or voice quality.
VSA Vendor-specific attribute. A type of RADIUS attribute that enables a vendor to extend RADIUS
operations to fit its own products, without conflicting with existing RADIUS attributes or the VSAs of other
companies. Companies can create new authentication and accounting attributes as VSAs.
watch list A WLAN Management Software method for monitoring user location and activity. After
initially finding a user through WLAN Management Software , you can add the user to the watch list for
continued monitoring. WLAN Management Software tracks and displays such information as the Access
Point (AP) access port(s) that a user is associated with during a session, the server that authenticated the user,
and the session start and stop times.