User's Manual

Glossary
BreezeMAX Modular Base Station System Manual 279
CSMA/CD Carrier Sense Multiple Access with Collision Detection.
Media-access mechanisms wherein devices ready to transmit data
first check the channel for a carrier. If no carrier is sensed for a
specific period of time, a device can transmit. If two devices transmit
at once, a collision occurs and is detected by all colliding devices.
This collision subsequently delays retransmissions from those
devices for some random length of time. Ethernet and IEEE 802.3
use CSMA/CD access.
CT Committed Time. The time interval used for measuring average
information transfer rates.
DHCP Dynamic Host Configuration Protocol. A protocol for dynamically
assigning IP addresses from a pre-defined list to nodes on a network.
Using DHCP to manage IP addresses simplifies client configuration
and efficiently utilizes IP addresses.
DIP Switch A group of subminiature switches mounted in a Dual Inline Package
compatible with standard integrated-circuit sockets.
DL Down Link
DOS Disk Operating System
DRAP Dynamic Resources Allocation Protocol
DSCP Differentiated Service Code Point, AKA DiffServ: An alternate use for
the ToS byte in IP packets. Six bits of this byte are being reallocated
for use as the DSCP field where each DSCP specifies a particular
per-hop behavior that is applied to the packet.
DiffServ See DSCP
DLI Data Loss Indicator
EIR Excess Information Rate. Specifies the excess rate (above the
committed rate) of information that can be available to a user. The
EIR is used by the traffic policing mechanism to prevent users from
sending excess traffic to the network. (EIR = MIR-CIR).
EIRP Equavalent Isotropic Radiated Power. The apparent power
transmitted towards the receiver, if it is assumed that the signal is
radiated equally in all directions. The EIRP is equal to the power (in
dBm) at the antenna port, plus the power gained from the directivity
of the antenna (in dBi).