what is pp protocol
PPP was first proposed as a standard by the Internet Engineering Task Force (IETF) in 1989 and became a working standard in 1994. The IETF specification for PPP is RFC 1661. PPP is a protocol most widely used by Internet service providers (ISPs) to enable dial up connections to the Internet.s a tunneling protocol, PPPoE is used as an effective foundation for the transport of IP packets at the network layer. IP is overlaid over a PPP connection and uses PPP as a virtual dial up connection between points on the network.