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Appendix D: Glossary
24-Port 10/100/1000 Gigabit Switch with Webview and PoE
LAN - The computers and networking products that make up your local network.
MAC (Media Access Control) Address - The unique address that a manufacturer assigns to each networking
device.
Mask - A filter that includes or excludes certain values, for example parts of an IP address.
Mbps (MegaBits Per Second) - One million bits per second; a unit of measurement for data transmission.
MD5 (Message Digest 5) - An algorithm that produces a 128-bit hash. MD5 is a variation of MD4, and increases
MD4 security. MD5 verifies the integrity of the communication and authenticates the origin of the communication.
MDI (Media Dependent Interface) A cable used for end stations.
MDIX (Media Dependent Interface with Crossover) - A cable used for hubs and switches.
MIB (Management Information Base) - MIBs contain information describing specific aspects of network
components.
Multicast - Transmits copies of a single packet to multiple ports.
Network - A series of computers or devices connected for the purpose of data sharing, storage, and/or
transmission between users.
NMS (Network Management System) - An interface that provides a method of managing a system.
OID (Object Identifier) - Used by SNMP to identify managed objects. In the SNMP Manager/Agent network
management paradigm, each managed object must have an OID to identify it.
Packet - A unit of data sent over a network.
Ping (Packet INternet Groper) - An Internet utility used to determine whether a particular IP address is online.
Policing - Determines if traffic levels are within a specified profile. Policing manages the maximum traffic rate
used to send or receive packets on an interface.
Port - The connection point on a computer or networking device used for plugging in cables or adapters.
Port Mirroring
- Monitors and mirrors network traffic by forwarding copies of incoming and outgoing packets
from one port to a monitoring port.
Power over Ethernet (PoE) - A technology enabling an Ethernet network cable to deliver both data and power.
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