P314 Broadband Sharing Gateway with
| Glossary of Terms |
10BaseT | The |
| cabling (Category 3 or 5): one pair for transmitting data and the other for receiving |
| data. |
ARP | Address Resolution Protocol is a protocol for mapping an Internet Protocol address (IP |
| address) to a physical machine address that is recognized in the local network. |
Authenticity | Proof that the information came from the person or location that reportedly sent it. One |
| example of authenticating software is through digital signatures. |
Backbone | A |
| network. |
Bandwidth | This is the capacity on a link usually measured in |
Bit | (Binary Digit) |
| The smallest unit of computerized data. |
Byte | A set of bits that represent a single character. There are 8 bits in a Byte. |
CDR | Call Detail Record. This is a name used by telephone companies for call related |
| information. |
CHAP | Challenge Handshake Authentication Protocol is an alternative protocol that avoids |
| sending passwords over the wire by using a challenge/response technique. |
Client | A software program that is used to contact and obtain data from a Server software |
| program on another computer. Each Client program is designed to work with one or |
| more specific kinds of Server programs and each Server requires a specific kind of |
| Client. A Web Browser is a specific kind of Client. |
Crossover | A cable that wires a pin to its opposite pin, for example, RX+ is wired to TX+. This |
Ethernet cable | cable connects two similar devices, for example, two data terminal equipment (DTE) or |
| data communications equipment (DCE) devices. |
CSU/DSU | Channel Service Unit/Data Service Unit. CSUs (channel service units) and DSUs (data |
| service units) are actually two separate devices, but they are used in conjunction and |
| often combined into the same box. The devices are part of the hardware you need to |
| connect computer equipment to digital transmission lines. The Channel Service Unit |
| device connects with the digital communication line and provides a termination for the |
| digital signal. The Data Service Unit device, sometimes called a digital service unit, is |
| the hardware component you need to transmit digital data over the hardware channel. |
| The device converts signals from bridges, routers, and multiplexors into the bipolar |
| digital signals used by the digital lines. Multiplexors mix voice signals and data on the |
| same line. |
DCE | Data Communications Equipment is typically a modem or other type of communication |
| device. The DCE sits between the DTE (data terminal equipment) and a transmission |
| circuit such as a phone line. |
DHCP | Dynamic Host Configuration Protocol automatically assigns IP addresses to clients |
| when they log on. DHCP centralizes IP address management on central computers |
H | Glossary of Terms |