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LifeGuard Networks
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Hudson, MA 01749


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Glossary IP Solutions
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Patch Panel Patch panels contain 8, 12 or 24 jacks within a strip for easy connection to solid cables. You can attach the patch panel to the wall, insert the solid cables, and then insert the patch cables on the other side – leading to your hub – for safe and effective wiring of your network.

Path Defines the complete location of a folder or file, such as C:\Windows\Program files. A network path begins with two backslashes, to identify the path as a network path, such as \\Sue\My Documents.

Peer-to-Peer Network A network in which all computers on the network have an equal rank; all share their resources – including files, folders, drives, printers and so on – with all others on the network. See also work-group network.

Permissions Similar to rights, permissions are characteristics given to users of a network to allow or prevent access to files and other resources on the network.

PING The PING command sends TCP/IP packets to the designated computer. If PING is successful, TCP/IP sends the packets back. Use PING to verify that the TCP/IP configuration is correct, that local computers are communicating with each other, and that remote computers are communicating with local computers.

POP (Point of Presence) The e-mail host name. The host is the server that holds the e-mail messages for you until you log on and get your messages.

Port The device that enables data to transfer to and from a computer or other piece of equipment. A parallel port, for example, enables the computer to send printing data across a cable to the printer. A serial port enables information to travel to a modem or other device.

Port (TCP) In TCP/IP and UDP networks, a port is an endpoint to a logical connection and the way a client program specifies a specific server program on a computer in a network. Some common ports are HTTP at Port 80 and FTP ports at 20 (Data) and 21 (Control). Some ports have numbers that are pre-assigned to them by the IANA.

Power Line Network In a power line network, you use electrical outlets in your home to attach computers for sharing files, printers, internet accounts, and peripherals. It’s important to note that the transmission speeds for power line networks are slow. Data transmission speeds are around 350 Kbps.

PPP (Point-to Point Protocol) This protocol is often used with remote access, because it enables computers to load other protocols – such as TCP/IP, NetBEUI, and so on – in addition to the PPP.

PRI (Primary Rate Interface) PRI lines are a type of ISDN line that are more expensive than BRI because of a higher bandwidth connections. PRI supplies speeds up to 1.5 Mbps.

Protocol Part of software is a language that computers can use to communicate, called a protocol. Windows contains three such protocols from which you can choose.

Proxy Server These servers control what the user can and cannot access on the Internet. Proxy servers also might reduce user wait times by relieving bandwidth congestion, offer network security features, log events, and so on. Some proxy server software is installed on a dedicated computer that acts as a gateway and barrier between the LAN and the Internet.

QOS Short for quality of service. QoS is the term for giving selected network traffic a higher or lower priority based on a set of rules. An administrator can set higher and lower priorities on a network using the Quos settings.

RAM (Random Access Memory) Temporary memory in a computer. The memory stores the data related to a task that the processor is currently dealing with.