Overview
Point-to-Point Protocol (PPP) provides a standard method for transporting multiprotocol datagrams over point-to-point links. PPP offers the following functions:
- A framing technique that defines the start and end of each frame and provides error detection
- A Link Control Protocol (LCP) for establishing, configuring, and testing the data link connection
- A family of Network Control Protocols (NCPs) for establishing and configuring different network-layer protocols
PPP is designed for simple links that transport packets directly between two peers. On an E-series device, it provides router-to-router and host-to-network synchronous connections and also provides a method for transmitting protocol datagrams at the data link layer over serial point-to-point links.