link quality monitoring
CCNA
PPP Configuration: A Complete Cisco IOS Guide
Remember that HDLC is the default encapsulation protocol on Cisco router serial interfaces. If PPP configuration isn’t explicitly applied, the default HDLC encapsulation remains in use. To set PPP as the encapsulation method on a serial interface, PPP must be configured directly on that interface. Consider a simple topology: two routers, Router1 and Router2, connected...
CCNA
PPP Overview: The Point-to-Point Protocol Explained
PPP (Point-to-Point Protocol) is a WAN encapsulation protocol developed in the early 1990s as a successor to the older Serial Line Internet Protocol (SLIP). It’s an open standard, meaning the protocol can be used consistently across equipment from different vendors — a significant advantage over proprietary alternatives. PPP can run over a remarkably wide range...