D-Link DWS-1008 - AirPremier MobileLAN Switch Product Manual page 484

minimum data transmit rate - The lowest rate at which a DWL-8220AP access point can transmit data
to its associated mobile clients. If the data rate to a client drops below the minimum, the AP increases
power, if RF Auto-Tuning is enabled.
Mobility System Software™ (MSS™) - The Trapeze operating system, accessible through a
command-line interface (CLI), that enables D-link Mobility System products to operate as a single
system. Mobility System Software (MSS) performs authentication, authorization, and accounting (AAA)
functions; manages DWS-1008 switches and DWL-8220AP access points; and maintains the wireless
LAN (WLAN) by means of such network structures as virtual LANs (VLANs), tunnels, spanning trees,
and link aggregation.
MPDU - MAC protocol data unit. In IEEE 802.11 communications, the data unit (or frame) that two
peer media access control (MAC) service access points (SAPs) exchange through the services of the
Physical layer (PHY). An MPDU consists of MAC headers and a MAC service data unit (MSDU). See
also MSDU.
MS-CHAP-V2 - Microsoft Challenge Handshake Authentication Protocol version 2. Microsoft's extension
to CHAP. MS-CHAP-V2 is a mutual authentication protocol, defined in RFC 2759, that also permits a
single login in a Microsoft network environment. See also CHAP.
MSDU - MAC service data unit. In IEEE 802.11 communications, the data payload encapsulated within
a MAC protocol data unit (MPDU).
MTU - Maximum transmission unit. The size of the largest packet that can be transmitted over a
particular medium. Packets exceeding the MTU value in size are fragmented or segmented, and then
reassembled at the receiving end. If fragmentation is not supported or possible, a packet that exceeds
the MTU value is dropped.
NAT - Network address translation. The capability, defined in RFC 3022, of using one set of reusable IP
addresses for internal traffic on a LAN, and a second set of globally unique IP addresses for external
traffic.
network address translation - See NAT.
nonvolatile storage - A way of storing images and configurations so that they are maintained in a unit's
memory whether power to the unit is on or off.
Odyssey - An 802.1X security and access control application for wireless LANs (WLANs), developed
by Funk Software, Inc.
OFDM - Orthogonal frequency division multiplexing. A modulation technique that sends data across a
number of narrow subcarriers within a specified frequency band. The wireless networking standards
IEEE 802.11a and IEEE 802.11g are based on OFDM.
orthogonal frequency division multiplexing - See OFDM.
pairwise master key - See PMK.
D-Link DWS-1008 User Manual