Extreme Networks WM-4T1i manual Configuring PPP and Mlppp, Overview

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3Configuring PPP and MLPPP

This chapter covers the following topics:

•Multilink PPP and Multilink Groups on page 3-2

•Configuring a PPP/MLPPP Link on page 3-3

•Monitoring PPP/MLPPP Links on page 3-6

•PPP/MLPPP Configuration Examples on page 3-6

Overview

Point-to-Point Protocol (PPP) is used across the entire range of communication speeds and devices found on the internet. Typically, PPP uses Layer 3 to connect two broadcast networks, say two ethernet LANs, into a single WAN by transporting IP packets over a link. PPP can also use Layer 2 to bridge packets from one VLAN to another.

Multilink PPP (MLPPP) is a protocol for combining a number of PPP links into one bundle that transports traffic over the links in the bundle. A multilink group is just a bundle of individual PPP links that are configured to work together as a single link. With a multilink group configured, it is easy to add or remove additional PPP links to provide bandwidth as needed. The multilink group balances traffic among the individual PPP links and properly sequences packets across the multilink group.

Typically, you would add a multilink group to a VLAN, configure the multilink group by adding T1 ports and configuring PPP/MLPPP parameters, and finally, enable the multilink group.

WM-4T1i Module Installation and User Guide

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Contents WM-4T1i Module Installation and User Guide Page Contents Index Index of Commands Introduction PrefaceText Conventions ConventionsRelated Publications Viii WM-4T1i Module Installation and User Guide Overview Installing the WM-4T1i ModuleInstalling the WM-4T1i Module WM-4T1i Module LEDs Ports and ConnectorsLED 1WM-4T1i Module LEDsInstalling the WM-4T1i Module Software Use image primary secondary Configuring T1 Physical link Configuring the T1 Physical LinkCable length AlarmsClock Source Facility Data LinkFraming Inband Loopback DetectionLinecoding Yellow Alarms T1 Port Configuration Commands1T1 Port Configuration Commands Monitoring T1 Physical Link LoopbackData Data out Framer Data with framing Framer Data out Data Data out FramerFar-End Loopback Modes 6Remote payload loopback mode 5Remote line loopback mode2T1 Port Monitoring Commands T1 Port Monitoring Commands2T1 Port Monitoring Commands Configuring the T1 Physical Link Configuring PPP and Mlppp Multilink PPP and Multilink Groups Authentication Configuring a PPP/MLPPP LinkPPP User Accounts Encapsulation1PPP/MLPPP Configuration Commands PPP/MLPPP Configuration CommandsMonitoring PPP/MLPPP Links PPP/MLPPP Configuration ExamplesConfiguring a Bridged PPP/MLPPP Link Example 2PPP/MLPPP Show CommandsConfiguring a Routed PPP/MLPPP Link Example Switch #1Switch 2IPCP multilink example Numerics IndexPAP Index of Commands Ii Index of Commands
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