Chapter 25 Configuring MLPPP

Configuring MLPPP Backhaul

DETAILED STEPS

 

Command

 

Purpose

Step 1

 

 

 

enable

 

Enables privileged EXEC mode.

 

 

 

Enter your password if prompted.

 

Example:

 

 

 

Router> enable

 

Step 2

 

 

configure terminal

Enters global configuration mode.

 

Example:

 

 

 

Router# configure terminal

 

Step 3

 

 

Router(config)# interface multilink

Creates a multilink bundle and enters the interface configuration mode:

 

group-number

group-number—Number of the multilink bundle.

 

 

 

 

Example:

 

The example creates a multilink bundle 5.

 

 

To remove a multilink bundle, use the no form of this command.

 

Router(config)# interface

 

multilink5

 

 

Step 4

 

 

Router(config-if)# ip address

Assigns an IP address to the multilink interface.

 

address [subnet mask]

address— IP address.

 

 

 

 

Example:

 

subnet mask—Network mask of IP address.

 

 

 

 

Router(config-if)# ip address

The example configures an IP address and subnet mask.

 

10.10.10.2

255.255.255.0

 

Step 5

 

 

Router(config-if)# exit

Exits configuration mode.

 

Example:

 

 

 

Router(config-if)# exit

 

 

 

 

 

Configuring MRRU

You should configure the local maximum received reconstructed unit (MRRU) of the multilink bundle to a value greater than or equal to 1508 bytes(or equal to the maximum packet length expected on the bundle at any point in time). The maximum MTU supported on the Cisco ASR 901 router is 1536, and MTU drops occur when the packet length is more than 1536.

Complete the following steps to configure MRRU:

SUMMARY STEPS

1.enable

2.configure terminal

3.interface multilink group-number

4.ppp multilink mru local bytes

5.end

 

 

Cisco ASR 901 Series Aggregation Services Router Software Configuration Guide

 

 

 

 

 

 

OL-23826-09

 

 

25-7

 

 

 

 

 

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Cisco Systems A9014CFD manual Configuring Mrru, Example creates a multilink bundle, 25-7