3Com WX4400 3CRWX440095A, WXR100 3CRWXR10095A, WX1200 3CRWX120695A, WX2200 3CRWX220095A Nii, Vlan

GLOSSARY 701

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	See U-NII.
Information
Infrastructure
user	A person who uses a client. In a 3Com Mobility System, users are
	indexed by username and associated with authorization attributes such
	as user group membership.
user glob	A 3Com 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 glob 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 glob; VLAN glob.
user group	A collection of users with the same authorization attributes.
vendor-specific	See VSA.
attribute
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 Wireless
	Switch (WX) ports are members of VLAN 1, which is named default.