Dell PowerConnect 3424 User Manual page 394

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, authenticates the origin of the communication.
MDI
Media Dependent Interface. A cable used for end stations.
MDIX
Media Dependent Interface with Crossover (MDIX). 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.
N
NMS
Network Management System. An interface that provides a method of managing a system.
Node
A network connection endpoint or a common junction for multiple network lines. Nodes include:
• Processors
• Controllers
• Workstations
O
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.
P
Packets
Blocks of information for transmission in packet switched systems.
PDU
Protocol Data Unit. A data unit specified in a layer protocol consisting of protocol control information and layer
user data.
394 Glossary