D-Link DGS-1016D/DGS-1024D Unmanaged Gigabit Ethernet Switch
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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.
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.
Flow Control
– (IEEE 802.3z) A means of holding packets back at the transmit port of
the connected end station. Prevents packet loss at a congested switch port.
forwarding
– The process of sending a packet toward its destination by an
internetworking device.
full-duplex
– A system that allows packets to be transmitted and received at the same
time and, in effect, doubles the potential throughput of a link.
half-duplex
– A system that allows packets to be transmitted and received, but not at
the same time. Contrast with
full-duplex
.
IP address
– Internet Protocol address. A unique identifier for a device attached to a
network using TCP/IP. The address is written as four octets separated with full-stops
(periods), and is made up of a network section, an optional subnet section, and a host
section.
IPX
– Internetwork Packet Exchange. A protocol allowing communication in a
NetWare network.
LAN
– Local Area Network. A network of connected computing resources (such as
PCs, printers, servers) covering a relatively small geographic area (usually not larger
than a floor or building). Characterized by high data rates and low error rates.
latency
–
The delay between the time a device receives a packet and the time the packet
is forwarded out of the destination port.
line speed
– See
baud rate
.
main port
– The port in a resilient link that carries data traffic in normal operating
conditions.
MDI
–
Medium Dependent Interface. An Ethernet port connection where the
transmitter of one device is connected to the receiver of another device.
MDI-X
– Medium Dependent Interface Cross-over. An Ethernet port connection where
the internal transmit and receive lines are crossed.
MIB
– Management Information Base. Stores a device’s management characteristics
and parameters. MIBs are used by the Simple Network Management Protocol (SNMP)
to contain attributes of their managed systems. The Switch contains its own internal
MIB.
multicast
– Single packets copied to a specific subset of network addresses. These
addresses are specified in the destination-address field of the packet.
protocol
– A set of rules for communication between devices on a network. The rules
dictate format, timing, sequencing, and error control.
resilient link
– A pair of ports that can be configured so that one will take over data
transmission should the other fail. See also
main port
and
standby port
.
RJ-45
– Standard 8-wire connectors for IEEE 802.3 10BASE-T networks.
RMON
– Remote Monitoring. Subset of SNMP MIB II, which allows monitoring and
management capabilities by addressing up to ten different groups of information.
