User guide

3-22 Packet Over SONET Module Installation and User Guide
Configuring the PoS Module
Configuring and Monitoring PPP Functions
In addition to the ExtremeWare commands for configuring slot and port behavior that
are described in the ExtremeWare Software User Guide, this section describes the
commands you use to configure PPP attributes for PoS module ports.
This section provides information on the following topics:
• PPP Background Information on page 3-22
• Commands for Configuring and Monitoring PPP Functions on page 3-26
• Configuring the PoS Checksum on page 3-27
• Configuring PoS Scrambling on page 3-27
• Configuring Link Maintenance on page 3-28
• Configuring PPP Link Quality Monitoring on page 3-29
• Configuring PPP Authentication on page 3-30
• Configuring the Name and Password for the Port on page 3-30
• Creating an Authentication Database Entry on page 3-31
• Configuring the Network Control Protocol on page 3-33
• Configuring the MPLS Control Protocol on page 3-34
• Configuring the Delayed-Down-Time Interval on page 3-35
• Displaying PPP Information on page 3-36
• Resetting PPP Configuration Parameter Values on page 3-37
Table 3-5 on page 3-26 describes the ExtremeWare commands you use to configure and
monitor PPP functions.
PPP Background Information
The Point-to-Point Protocol (PPP) encompasses a suite of protocols designed to provide
standard methods for transporting datagrams over point-to-point links. The use of PPP
over SONET links is commonly referred to as Packet over SONET, or PoS. The Extreme
Networks implementation of PPP for the PoS module provides support for the
following protocols in the PPP suite:
• Link Control Protocol (LCP)
• Link Quality Report (LQR) Protocol