D-Link DWS-1008 User Manual page 434

DWS-1008 User's Manual
plenum
A compartment or chamber to which one or more air ducts are connected.
plenum-rated cable
A type of cable approved by an independent test laboratory for installation in ducts, plenums,
and other air-handling spaces.
PMK
Pairwise master key. A code derived from a master secret and used as an encryption key
for IEEE 802.11 encryption algorithms. A PMK is also used to derive a pairwise transient key
(PTK) for IEEE 802.11i robust security. See also master secret; PTK.
PoE
Power over Ethernet. A technology, defined in the developing IEEE 802.3af standard, to
deliver DC power over twisted-pair Ethernet data cables rather than power cords. The
electrical current, which enters the data cable at the power-supply end and comes out at the
device end, is kept separate from the data signal so neither interferes with the other.
policy
A formal set of statements that define the way a network's resources are allocated among
its clients—individual users, departments, host computers, or applications. Resources are
statically or dynamically allocated by such factors as time of day, client authorization priorities,
and availability of resources.
Policy Manager
A RingMaster feature that allows you to apply a collection of configuration settings known
as a domain policy, or part of the policy, to one or more DWS-1008 switches. With Policy
Manager, you can also merge some or all of the configuration changes you make to a single
switch into a domain policy. See also domain policy.
port address translation
See PAT.
Power over Ethernet
See PoE.
pre-master secret
A key generated during the handshake process in Transport Layer Security (TLS) protocol
negotiations and used to derive a master secret.
preshared key
See PSK.
D-Link Systems, Inc.
Appendix D - Glossary
429