DGS-3024 Gigabit Ethernet Switch Manual
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.
GBIC – Gigabit interface converter, a transceiver that converts serial electric signals to serial optical signals and vice versa. In networking, a GBIC is used to interface a fiber optic system with an Ethernet system, such as Fiber Channel and Gigabit Ethernet.
A GBIC allows designers to design one type of device that can be adapted for either optical or copper applications. GBICs also are
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
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.
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
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.
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. 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
stack – A group of network devices that are integrated to form a single logical device.
standby port – The port in a resilient link that will take over data transmission if the main port in the link fails.
147