PPP (Point-to-Point Protocol) workflow and features

PPP (Point-to-Point Protocol) workflow and features PPP (Point-to-Point Protocol) workflow: when a user dials an ISP, the modem of the router confirms the dial and a physical connection occurs. The PC sends a series of LCP groups (encapsulated into multiple PPP frames) to the router ). These groups and their responses select some PPP parameters and work with the network layer. NCP assigns a temporary IP address to the newly accessed PC so that the PC machine becomes a host on the Internet. When the communication ends, NCP releases the network layer connection and revokes the allocated IP address. Subsequently, LCP releases the data link layer connection. The last release is the physical layer connection. The most important difference between PPP and HDLC is that PPP is character-oriented and HDLC is bit-oriented. PPP (Point-to-Point Protocol) is a point-to-point serial communication protocol. PPP has the functions of dealing with illegal detection, supporting multiple protocols, approving consultation on IP addresses at connection times, and approving identity authentication, among others. PPP provides three types of functions: frame formation, link blocking protocol LCP, and network blocking protocol NCP. Www.2cto.com a. Important observations are Carrier Phase B. Fine satellite orbit and clock Data Approval c. Approval of mixed model PPP positioning accuracy: Sub-meter level. PPP: global high-precision measurement and satellite orbit determination. PPP utilization scope: PPP is a multi-protocol frame mechanism that is applicable to modem, HDLC bit sequence lines, SONET, and other physical layers. It supports free-of-charge detection, option-based consultation, head shrinking, and reliable transmission using HDLC frame styles (optional. Author's soil sunshine k