Dell PowerConnect 2808 User Manual page 175

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.
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.
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.
Verifies if a specific IP
Q
QoS
Quality of Service.
QoS allows network managers to
decide how and what network traffic is forwarded
according to priorities, application types, and source
and destination addresses.
Query
Extracts information from a database and presents
the information for use.
R
RADIUS
Remote Authentication Dial-In User Service
method for authenticating system users, and
tracking connection time.
RMON
Remote Monitoring
. Provides network information
to be collected from a single workstation.
Router
A device that connects to separate networks.
Routers forward packets between two or more
networks. Routers operate at a Layer 3 level.
RSTP
Rapid Spanning Tree Protocol
network topologies that allow a faster convergence
of the spanning tree, without creating forwarding
loops.
. A
. Detects and uses
175