Example: Configuring Fragmentation and Reassembly for Static MLPPP

This example shows you how to configure fragmentation and reassembly for static MLPPP.

• Requirements
• Overview
• Configuring Fragmentation and Reassembly for Static MLPPP

Requirements

Before you begin configuring static MLPPP, you must configure the individual interfaces on which you want to enable MLPPP. See the following:

• Configuring Channelized T3 Interfaces in JunosE Physical Layer Configuration Guide
• Configuring T3 and E3 Interfaces in JunosE Physical Layer Configuration Guide
• Configuring Channelized OCx/STMx Interfaces in JunosE Physical Layer Configuration Guide

Overview

To configure fragmentation and reassembly for a static MLPPP interface you must specify the individual link interfaces on which you want to configure fragmentation and reassembly. The ppp fragmentation command and ppp reassembly command then enable fragmentation and reassembly for the static MLPPP interface. Once the link interfaces are created, you must add them to the MLPPP bundle using the member-interface command.

Configuring Fragmentation and Reassembly for Static MLPPP

Step-by-Step Procedure

1. From Global Configuration mode, specify the individual link interface on which you want to configure fragmentation and reassembly.
   host1(config)#interface atm 2/0 host1(config-if)#interface atm 2/0.2 host1(config-subif)#atm pvc 42 0 42 aal5snap
2. Specify MLPPP as the encapsulation method on the link interface.
   host1(config-subif)#encapsulation mlppp
3. Enable fragmentation, reassembly, and authentication on the link interface.
   host1(config-subif)#ppp fragmentation host1(config-subif)#ppp reassembly 1400 host1(config-subif)#ppp authentication pap chap host1(config-subif)#exit
4. You must similarly configure all additional link interfaces on which you want to configure fragmentation and reassembly.
   host1(config)#interface atm 2/0.3 host1(config-subif)#atm pvc 43 0 43 aal5snap host1(config-subif)#encapsulation mlppp host1(config-subif)#ppp fragmentation host1(config-subif)#ppp reassembly 1600 host1(config-subif)#ppp authentication pap chap host1(config-subif)#exit
5. Define the MLPPP bundle.
   host1(config)#interface mlppp client1
6. Add the link interfaces as member links to the bundle.
   host1(config-if)#member-interface atm 2/0.2 host1(config-if)#member-interface atm 2/0.3
7. Assign an IP address to the MLPPP bundle.
   host1(config-if)#ip address 10.10.200.1 255.255.255.0

Related Documentation

• Configuring Fragmentation and Reassembly for Dynamic MLPPP
• MLPPP Fragmentation and Reassembly Overview