PPP Related: Chapter Notes - Ch 8 - Communication and Network Concepts, Computer Science, Class 12 Explain in details.

PPP stands for Point-to-Point Protocol. It is a data link protocol used to establish a direct connection between two nodes in a network. PPP is commonly used to connect a computer to the Internet using a phone line and a modem. In this article, we will discuss PPP and how it works.

Working of PPP
PPP is a protocol used to establish a direct connection between two nodes in a network. It works by encapsulating data packets in a standardized format and transmitting them over the network. PPP is typically used to connect a computer to the Internet using a phone line and a modem.

PPP Frame Format
PPP uses a standardized frame format to encapsulate data packets. The frame format includes a header, data, and a trailer. The header includes information about the source and destination nodes, as well as the type of data being transmitted. The data section includes the actual data being transmitted, and the trailer includes error checking information.

PPP Security
PPP supports several security protocols, including Password Authentication Protocol (PAP) and Challenge Handshake Authentication Protocol (CHAP). These protocols are used to authenticate users and ensure that only authorized users can access the network.

PPP Advantages
PPP has several advantages over other data link protocols. These include:

- Support for multiple network protocols, including IP, IPX, and AppleTalk.
- Support for multiple physical media, including serial lines, ISDN, and Frame Relay.
- Advanced error detection and correction capabilities, which ensure that data is transmitted reliably.

Conclusion
PPP is an important data link protocol used to establish a direct connection between two nodes in a network. It is commonly used to connect a computer to the Internet using a phone line and a modem. PPP has several advantages over other data link protocols, including support for multiple network protocols and physical media, and advanced error detection and correction capabilities.