User`s manual

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DWS-1008 User’s Manual
D-Link Systems, Inc.
Appendix D - Glossary
IEEE
Institute of Electrical and Electronic Engineers. An American professional society whose
standards for the computer and electronics industry often become national or international
standards. In particular, the IEEE 802 standards for LANs are widely followed.
IGMP
Internet Group Management Protocol. An Internet protocol, dened in RFC 2236, that enables
an Internet computer to report its multicast group membership to neighboring multicast
routers. Multicasting allows a computer on the Internet to send content to other computers
that have identied themselves as interested in receiving it.
IGMP snooping
A feature that prevents the ow of multicast stream packets within a virtual LAN (VLAN)
and forwards the multicast trafc through a path to only the clients that want to receive it. A
DWS-1008 switch uses IGMP snooping to monitor the Internet Group Management Protocol
(IGMP) conversation between hosts and routers. When the switch 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 switch removes the port number from the
group list.
Industry Canada
See IC.
information element
See WPA IE.
infrastructure network
One of two IEEE 802.11 network frameworks. In an 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 dened 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 le servers and printers, a
D-Link Mobility System is an infrastructure network. Compare ad hoc network.
initialization vector (IV)
In encryption, random data used to make a message unique.
Institute of Electrical and Electronic Engineers
See IEEE.