Nortel 2300 Series Configuration Manual page 620

620 Glossary
IGMP snooping
(VLAN) and forwards the multicast traffic through a path to only the clients that want to receive it. A Wireless
Security Switch (WSS) switch uses IGMP snooping to monitor the Internet Group Management Protocol
(IGMP) conversation between hosts and routers. When the WSS 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 WSS removes the port number from the group list.
Industry Canada
information element
infrastructure 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 port,
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 Nortel WLAN 2300 System is an infrastructure network. Compare ad hoc network.
initialization vector (IV)
Institute of Electrical and Electronic Engineers
integrity check value
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 Organization for Standardization
Internet Authentication Service
Internet Group Management Protocol
Interswitch Link
ISL
Interswitch Link. A proprietary Cisco protocol for interconnecting multiple switches and maintaining
virtual LAN (VLAN) information as traffic travels between switches. Working in a way similar to VLAN
trunking, described in the IEEE 802.1Q standard, ISL provides VLAN capabilities while maintaining full
wire-speed performance on Ethernet links in full-duplex or half-duplex mode. ISL operates in a point-to-point
environment and supports up to 1000 VLANs.
ISO
International Organization for Standardization. An international organization of national standards
bodies from many countries. ISO has defined a number of computer standards, including the Open Systems
Interconnection (OSI) standardized architecture for network design.
IV
See initialization vector (IV).
jumbo frame
LAWN
See WLAN.
320657-A
A feature that prevents the flow of multicast stream packets within a virtual LAN
See IC.
See WPA IE.
One of two IEEE 802.11 network frameworks. In an infrastructure network,
In encryption, random data used to make a message unique.
See ICV.
See ISL.
In an Ethernet network, a frame whose data field exceeds 1500 bytes.
See IEEE.
See ISO.
See IAS.
See IGMP.