716 Dell PowerConnect 55xx Systems User Guide
FILE LOCATION:  C:\Users\gina\Desktop\Checkout_new\Maintenance Projects\Dell 
Contax\CxUGGlossary.fm
DELL CONFIDENTIAL – PRELIMINARY 9/11/12 - FOR PROOF ONLY
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
NA
Neighbor Advertisement.
ND
Neighbor Discovery.
NS
Neighbor Solicitation.
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