PPP LCP Features:
|Looped link detection
|Detects if the link is looped, and disables the interface, allowing rerouting over a working route.
|Link Quality Monitoring (LQM)
|Disables an interface that exceeds an error percentage threshold, allowing rerouting over better routes.
|Load-balances traffic over multiple parallel links
|PAP and CHAP
|Exchanges names and passwords so that each device can verify the identity of the device on the other end of the link.