
114068 Rev. A 2-1
Chapter 2
PPP Concepts
This chapter describes PPP concepts that may help you decide how to customize
the PPP parameters for your system. This chapter also addresses special
configuration features of Bay Networks Point-to-Point Protocol (PPP) services. It
contains basic guidelines on configuring PPP interfaces.
PPP Overview
Point-to-Point Protocol (PPP) is a standard method of routing or bridging
datagrams between peer routers or other devices over serial point-to-point links
(
Figure 2-1).
Figure 2-1. Point-to-Point Network Connection
PPP serves three major functions:
• Data link layer connection and management
• Network layer connection and management
• Datagram encapsulation
LAN LAN
Router Router
Synchronous Line
PPP0001A
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