Dell PowerConnect 54 Series, User Manual

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Glossary
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Spanning Tree Protocol
Prevents loops in network traffic. The Spanning Tree
Protocol (STP) provides tree topography for any
arrangement of bridges. STP provides one path
between end stations on a network, eliminating loops.
SSH
Secure Shell . Logs into a remote computer via a
network, executes commands, and to transfers files
from one computer to another.
Startup Configuration
Retains the exact device configuration when the
device is powered down or rebooted.
Subnet
Sub-network. Subnets are portions of a network that
share a common address component. On TCP/IP
networks, devices that share a prefix are part of the
same subnet. For example, all devices with a prefix of
157.100.100.100 are part of the same subnet.
Subnet Mask
Used to mask all or part of an IP address used in a
subnet address.
Switch
Filters and forwards packets between LAN segments.
Switches support any packet protocol type.
T
TCP/IP
Transmissions Control Protocol . Enables two hosts to
communicate and exchange data streams. TCP
guarantees packet delivery, and guarantees packets
are transmitted and received in the order their sent.
Telnet
Terminal Emulation Protocol. Enables system users to
log in and use resources on remote networks.
TFTP
Trivial File Transfer Protocol . Uses User Data
Protocol (UDP) without security features to transfer
files.
Trap
A message sent by the SNMP that indicates that
system event has occurred.
Trunking
Link Aggregation. Optimizes port usage by linking a
group of ports together to form a single trunk
(aggregated groups).
U
UDP
User Data Protocol. Transmits packets but does not
guarantee their delivery.
Unicast
A form of routing that transmits one packet to one
user.