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
OL-26895-01
Chapter 18 Configuring MLPPP Backhaul
Configuring ATM IMA
Inverse multiplexing provides the capability to transmit and receive a single high-speed data stream over
multiple slower-speed physical links. In Inverse Multiplexing over ATM (IMA), the originating stream
of ATM cells is divided so that complete ATM cells are transmitted in round-robin order across the set
of ATM links. Follow these steps to configure ATM IMA on the Cisco MWR 2941.
Step 11
Router(config-if)# encapsulation
ppp
Enters the following command to configure PPP encapsulation.
Step 12
Router(config-if)# keepalive
[period [retries]]
Enables keepalive packets on the interface and specify the number of
times that keepalive packets will be sent without a response the interface
is brought down:
Step 13
exit
Example:
Router(config)# exit
Router#
Exits configuration mode.
Command Purpose
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)# card type e1 0 0
Specifies the slot and port number of the E1 or T1 interface.
Step 4
Router(config)# controller E1 0/4
Router(config-controller)#
Specifies the controller interface on which you want to enable IMA.
Step 5
Router(config-controller)# clock
source internal
Set sthe clock source to internal.
Step 6
Router(config-controller)#
ima-group 0 scrambling-payload
Assigns the interface to an IMA group, and set the scrambling-payload
parameter to randomize the ATM cell payload frames. This command
assigns the interface to IMA group 0.
Note This command automatically creates an ATM0/IMAx interface.
Step 7
To add another member link, repeat Step 3 to Step 6.
Step 8
Router(config-controller)# exit
Router(config)#
Exits the controller interface.