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Internetwork Packet Exchange Control Protocol (IPXCP) OSI Network Layer Control Protocol (OSINLCP) Internet Protocol Control Protocol (IPCP) For every higher-layer protocol supported by PPP, one NCP is there. Network Control Protocols (NCPs) − These protocols are used for negotiating the parameters and facilities for the network layer. The two authentication protocols of PPP are −Ĭhallenge Handshake Authentication Protocol (CHAP) It also imparts negotiation for set up of options and use of features by the two endpoints of the links.Īuthentication Protocols (AP) − These protocols authenticate endpoints for use of services. Link Control Protocol (LCP) − It is responsible for establishing, configuring, testing, maintaining and terminating links for transmission. Point - to - Point Protocol is a layered protocol having three components −Įncapsulation Component − It encapsulates the datagram so that it can be transmitted over the specified physical layer. Supporting a variety of network layer protocols by providing a range os services. Providing connections over multiple links. Providing address for network communication. Stating authentication rules of the communicating devices.
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Stating the method of encapsulation of network layer data in the frame. The main services provided by Point - to - Point Protocol are −ĭefining the frame format of the data to be transmitted.ĭefining the procedure of establishing link between two points and exchange of data. Since it is a data link layer protocol, data is transmitted in frames. It is a byte - oriented protocol that is widely used in broadband communications having heavy loads and high speeds. Point - to - Point Protocol (PPP) is a communication protocol of the data link layer that is used to transmit multiprotocol data between two directly connected (point-to-point) computers.