User guide

432 Glossary
Backup Configuration Files
Contains a backup copy of the device configuration.
The Backup file changes when the Running
Configuration file or the Startup file is copied to the
Backup file.
Bandwidth
Bandwidth specifies the amount of data that can be
transmitted in a fixed amount of time. For digital
devices, bandwidth is defined in Bits per Second
(bps) or Bytes per Second.
Bandwidth Assignments
The amount of bandwidth assigned to a specific
application, user, and/or interface.
Baud
The number of signaling elements transmitted each
second.
Best Effort
Traffic is assigned to the lowest priority queue,
and packet delivery is not guaranteed.
Boot Version
The boot version.
BootP
Bootstrap Protocol. Enables a workstation to discover
its IP address, an IP address of a BootP server on a
network, or a configuration file loaded into the boot
of a device.
BPDU
Bridge Protocol Data Unit. Provide bridging
information in a message format. BPDUs are sent
across device information with in Spanning Tree
configuration. BPDU packets contain information
on ports, addresses, priorities, and forwarding costs.
Bridge
A device that connect two networks. Bridges are
hardware specific, however they are protocol
independent. Bridges operate at Layer 1 and Layer 2
levels.
Broadcast Domain
Devices sets that receive broadcast frames
originating from any device within a designated set.
Routers bind Broadcast domains, because routers do
not forward broadcast frames.
Broadcasting
A method of transmitting packets to all ports on a
network.
Broadcast Storm
An excessive amount of broadcast messages
simultaneously transmitted across a network by a
single port. Forwarded message responses are
heaped onto the network, overloading network
resources or causing the network to time out.
For more information about broadcast storms,
see "Configuring Load Balancing".