D-Link DES-3326S Command Line Interface Reference Manual page 319

D-Link DES-3326S Layer 3 Switch CLI Reference
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.
RJ-45: Standard 8-wire connectors for IEEE 802.3 10BASE-T networks.
RMON: Remote Monitoring. Subset of SNMP MIB II that allows monitoring and management
capabilities by addressing up to ten different groups of information.
RPS: Redundant Power System. A device that provides a backup source of power when connected to
the Switch.
RSTP: Rapid Spanning Tree Protocol as defined by IEEE 802.1w.
server farm: A cluster of servers in a centralized location serving a large user population.
SLIP: Serial Line Internet Protocol. A protocol that allows IP to run over a serial line connection.
SNMP: Simple Network Management Protocol. A protocol originally designed to be used in managing
TCP/IP internets. SNMP is presently implemented on a wide range of computers and networking
equipment and may be used to manage many aspects of network and end station operation.
Spanning Tree Protocol: (STP) A bridge-based system for providing fault tolerance on networks. STP
works by allowing you to implement parallel paths for network traffic, and ensure that redundant paths
are disabled when the main paths are operational and enabled if the main paths fail. The IEEE
standard 802.1d describes how the protocol.
stack: A group of network devices that are integrated to form a single logical device.
Switch: A device which filters, forwards, and floods packets based on the packet's destination address.
The Switch learns the addresses associated with each Switch port and builds tables based on this
information to be used for the Switching decision.
TCP/IP: A layered set of communications protocols providing Telnet terminal emulation, FTP file
transfer, and other services for communication among a wide range of computer equipment.
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