3Com WX1200 3CRWX120695A Igmp snooping, Industry Canada, Information element, Infrastructure

686GLOSSARY

IGMP snooping	A feature that prevents the flow of multicast stream packets within a
	virtual LAN (VLAN) and forwards the multicast traffic through a path to
	only the clients that want to receive it. A Wireless Switch (WX) uses
	IGMP snooping to monitor the Internet Group Management Protocol
	(IGMP) conversation between hosts and routers. When the WX detects
	an IGMP report from a host for a given multicast group, it adds the
	host’s port number to the list for that group. When it detects an IGMP
	host leaving a group, the WX removes the port number from the group
	list.
Industry Canada	See IC.
information element	See WPA IE.
infrastructure	One of two IEEE 802.11 network frameworks. In an infrastructure
network	network, all communications are relayed through an access point (AP).
	Wireless devices can communicate with each other or with a wired
	network. The network is defined by the distance of mobile stations
	from the access point, but no restriction is placed on the distance
	between stations. Stations must request association with the access
	point to obtain network services, which the access point can grant or
	deny based on the contents of the association request. Like most
	corporate wireless LANs (WLANs), which must access a wired LAN for
	file servers and printers, a 3Com Mobility System is an infrastructure
	network. Compare ad hoc network.
initialization vector	In encryption, random data used to make a message unique.
(IV)
Institute of Electrical	See IEEE.
and Electronic
Engineers
integrity check value	See ICV.
interface	A place at which independent systems meet and act on or
	communicate with each other, or the means by which the interaction
	or communication is accomplished.
International	See ISO.
Organization for
Standardization