D-Link DES-3326S Command Line Interface Reference Manual page 318

D-Link DES-3326S Layer 3 Switch CLI Reference
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LOSSARY
100BASE-FX: 100Mbps Ethernet implementation over fiber.
100BASE-TX: 100Mbps Ethernet implementation over Category 5 and Type 1 Twisted Pair cabling.
10BASE-T: The IEEE 802.3 specification for Ethernet over Unshielded Twisted Pair (UTP) cabling.
ageing: The automatic removal of dynamic entries from the Switch Database which have timed-out
and are no longer valid.
ATM: Asynchronous Transfer Mode. A connection oriented transmission protocol based on fixed
length cells (packets). ATM is designed to carry a complete range of user traffic, including voice, data,
and video signals.
auto-negotiation: A feature on a port that allows it to advertise its capabilities for speed, duplex, and
flow control. When connected to an end station that also supports auto-negotiation, the link can self-
detect its optimum operating setup.
backbone port: A port that does not learn device addresses, and which receives all frames with an
unknown address. Backbone ports are normally used to connect the Switch to the backbone of your
network. Note that backbone ports were formerly known as designated downlink ports.
Backbone: The part of a network used as the primary path for transporting traffic between network
segments.
bandwidth: Information capacity, measured in bits per second, that a channel can transmit. The
bandwidth of Ethernet is 10Mbps, the bandwidth of Fast Ethernet is 100Mbps.
baud rate: The Switching speed of a line. Also known as line speed.
BOOTP: The BOOTP protocol allows you to automatically map an IP address to a given MAC address
each time a device is started. In addition, the protocol can assign the subnet mask and default
gateway to a device.
bridge: A device that interconnects local or remote networks no matter what higher level protocols are
involved. Bridges form a single logical network, centralizing network administration.
broadcast: A message sent to all destination devices on the network.
broadcast storm: Multiple simultaneous broadcasts that typically absorb available network bandwidth
and can cause network failure.
console port: The port on the Switch accepting a terminal or modem connector. It changes the parallel
arrangement of data within computers to the serial form used on data transmission links. This port is
most often used for dedicated local management.
CSMA/CD: Channel access method used by Ethernet and IEEE 802.3 standards in which devices
transmit only after finding the data channel clear for some period of time. When two devices transmit
simultaneously, a collision occurs and the colliding devices delay their retransmissions for a random
amount of time.
data center Switching: The point of aggregation within a corporate network where a Switch provides
high-performance access to server farms, a high-speed backbone connection, and a control point for
network management and security.
edge port: A configurable designation for RSTP operations. It defines a port that is directly connected
to a segment where a loop cannot exist. For example, a port connected to a server with a single
Ethernet connection. Edge ports transition to a forwarding state more quickly where RSTP is used.
Ethernet: A LAN specification developed jointly by Xerox, Intel, and Digital Equipment Corporation.
Ethernet networks operate at 10Mbps using CSMA/CD to run over cabling.
Fast Ethernet: 100Mbps technology based on the Ethernet/CD network access method.
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