Specifications

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Cisco MWR 2941 Mobile Wireless Edge Router Release 3.5 Software Configuration Guide, Cisco IOS Release 15.1(3)MR
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Chapter 18 Configuring MLPPP Backhaul
Configuring a Multilink Backhaul Interface
A multilink interface is a virtual interface that represents a multilink PPP bundle. The multilink interface
coordinates the configuration of the bundled link, and presents a single object for the aggregate links.
However, the individual PPP links that are aggregated must also be configured. Therefore, to enable
multilink PPP on multiple serial interfaces, you first need to set up the multilink interface, and then
configure each of the serial interfaces and add them to the same multilink interface.
Note In the following procedure, press the Return key after each step unless otherwise noted. At any time,
you can exit the privileged level and return to the user level by entering disable at the Router# prompt.
The Cisco MWR 2941 router can support up to 16 E1/T1 connections through the multilink interface,
ranging from 12 bundles of 1 E1/T1 each to a single bundle containing 16 E1/T1 bundles.
Complete the following tasks to configure a multilink backhaul interface.
• Creating a Multilink Bundle
• Configuring PFC and ACFC, page 18-11
• Enabling Multilink and Identifying the Multilink Interface, page 18-13
• Enabling Real-Time Transport Protocol (RTP) Header Compression On a Multilink Inteface,
page 18-15
• Enabling Distributed IPHC Offload on a Multilink Interface, page 18-15
Creating a Multilink Bundle
To create a multilink bundle, follow these steps while in the global configuration mode:
Command Purpose
Step 1
enable
Example:
Router> enable
Enables privileged EXEC mode.
• Enter your password if prompted.
Step 2
configure terminal
Example:
Router# configure terminal
Enters global configuration mode.
Step 3
Router(config)# interface multilink
group-number
Example:
Router(config)# interface
multilink5
Router(config-if)#
Creates a multilink bundle and enter the interface configuration mode:
• group-number—Number of the multilink bundle.
The example creates a multilink bundle 5.
To remove a multilink bundle, use the no form of this command.
Note To see a list of the configuration commands available to you,
enter ? at the prompt or press the Help key while in the
configuration mode.