Dell PowerConnect 54 Series, User Manual

Page: 409 / 416

Glossary
409
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.
PING
Packet Internet Groper. Verifies if a specific IP
address is available. A packet is sent to another IP
address and waits for a reply.
Port
Physical ports provide connecting components that
allow microprocessors to communicate with
peripheral equipment.
Port Mirroring
Monitors and mirrors network traffic by forwarding
copies of incoming and outgoing packets from one
port to a monitoring port.
For more information on port mirroring, see
Defining
Port Mirroring Sessions
.
Port Speed
Indicates port speed of the port. Port speeds include:
• Ethernet 10 Mbps
• Fast Ethernet 100Mbps
• Gigabit Ethernet 1000 Mbps
Protocol
A set of rules that governs how devices exchange
information across networks.