 - PPP (Point-to-Point Protocol) is a protocol for communication between two computers using a serial interface, typically a personal computer connected by phone line to a server. For example, your Internet server provider may provide you with a PPP connection so that the provider's server can respond to your requests, pass them on to the Internet, and forward your requested Internet responses back to you. PPP uses the Internet protocol (IP) (and is designed to handle others). It is sometimes considered a member of the TCP/IP suite of protocols. Relative to the Open Systems Interconnection (OSI) reference model, PPP provides layer 2 (data-link layer) service. Essentially, it packages your computer's TCP/IP packets and forwards them to the server where they can actually be put on the Internet.
PPP is a full-duplex protocol that can be used on various physical media, including twisted pair or fiber optic lines or satellite transmission. It uses a variation of High Speed Data Link Control (HDLC) for packet encapsulation.
PPP is usually preferred over the earlier de facto standard Serial Line Internet Protocol (SLIP) because it can handle synchronous as well as asynchronous communication. PPP can share a line with other users and it has error detection that SLIP lacks. Where a choice is possible, PPP is preferred.
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Learn more about Working With Servers and Desktops |
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| Network administration guide: Network administration responsibilities, such as network design, troubleshooting, backup, documentation, security, and managing users are discussed in this guide. |
| Network administration: Help for designing, managing and troubleshooting your network: Helpful tips for network administration design, management and troubleshooting are presented in this guide. |
| Top five administrator tips of '05: This collection of our top five administrator tips focus on strategies for maximizing network uptime and efficiency while minimizing security risks and vulnerability. |
| LAST UPDATED: |
16 Apr 2007
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