Cisco Systems 3825

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Cisco 3825 Mobile Wireless Edge Router Software Configuration Guide

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Chapter 4 Configuring the Cisco 3825 Mobile Wireless Edge Router in a RAN-O Solution with the Command-Line

Configuration Sequence

• port—Specifies the port on the VWIC/HWIC previously assigned to the AIM for ATM card (Step 3

of the “Configuring UMTS Links” procedure on page 4-24).

For example, the following command configures the VWIC/HWIC in logical slot 0 (physical slot 0) port

1 located on the motherboard of the Cisco 3825 router to be used for ATM traffic:

Router(config)# interface ATM0/2/0

Router(config-if)#

Step 7 Disable the IP address configuration for the physical layer interface. This and other pr otocol parameters

should be configured on the IMA interface.

Router(config-if)# no ip address

Step 8 Disable the Interim Local Management Interface (ILMI ) keepalive parameters.

Router(config-if)# no atm ilmi-keepalive

Step 9 Specify the link that is included in an IMA group.

Router(config-if)# ima-group

group-number

Where group-number specifies the group number of the IMA group.

For example, the following command specifies the group number of the IM A group as 0:

Router(config-if)# ima-group 0

Step 10 Randomize the ATM cell payload frames.

Router(config-if)# scrambling-payload

Step 11 Specify the slot location and port of IMA interface group .

Router(config-if)# interface ATM

slot

/IMA

<group-number>

Where:

• slot—Specifies the slot location of the ATM IMA port adapter.

• group-number—Specifies the group number of the IMA group.

For example, the following command specifies the slot number as 0 and the group number as 0:

Router(config-if)# interface ATM0/IMA0

Note Should you desire, the optional ima group-id command can be used to explicitly configure the IMA

Group ID for the IMA interface. You cannot configure the same IMA Group ID on two different IMA

interfaces; therefore, if you configure an IMA Group ID with the system-selected default ID already

configured on an IMA interface, the system toggles the IMA interface to make the user-configured IMA

Group ID the effective IMA Group ID. At the same, the system toggles the original IMA interface to

select a different IMA Group ID.

Step 12 Create an ATM path on the UMTS Iub interface, enter the following command:

Router(config-if)# atm umts-iub

Step 13 Disable the ILMI keepalive parameters.

Router(config-if)# no atm ilmi-keepalive

Step 14 Create an ATM PVC:

Router(config-if)# pvc [

name

]

vpi/vci

[qsaal]