given packet is given to all hosts attached to the network. Example: Ethernet.
CO
Central Office. Refers to equipment located at a Telco or service provider's office.
CPE
Customer Premises Equipment located in a user's premises
DHCP (Dynamic Host Configuration Protocol)
DHCP is software that automatically assigns IP addresses to client stations logging onto a TCP/IP network. DHCP eliminates having to manually assign permanent IP addresses to every device on your network. DHCP software typically runs in servers and is also found in network devices such as Routers.
DMT
Discrete
Downstream rate
The line rate for return messages or data transfers from the network machine to the user's premises machine.
DSLAM
Digital Subscriber Line Access Multiplex
Dynamic IP Addresses
A dynamic IP address is an IP address that is automatically assigned to a client station (computer, printer, etc.) in a TCP/IP network. Dynamic IP addresses are typically assigned by a DHCP server, which can be a computer on the network or another piece of hardware, such as the Router. A dynamic IP address may change every time your computer connects to the network.
Encapsulation
The technique used by layered protocols in which a layer adds header information to the protocol data unit (PDU) from the layer above. As an example, in Internet terminology, a packet would contain a header from the physical layer, followed by a header from the network layer (IP), followed by a header from the transport layer (TCP), followed by the application protocol data.
Ethernet
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