Dell PowerConnect 5500 Series System User's Manual page 708

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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 switch module.
BPDU
Bridge Protocol Data Unit
. Provide bridging information in a message format.
BPDUs are sent across switch module 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
device 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 "LACP Parameters" on
page 512.
C
CDB
Configuration Data Base.
A file containing a device's configuration
information.
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Dell PowerConnect 55xx Systems User Guide