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

Configuration Sequence

With a Cisco 2-port T1/E1-RAN interface card located in the Cisco 3825 router slot 0 (physical slot HWIC0), for example, the following command specifies the E1 controller as the first port of the Cisco 2-port T1/E1-RAN interface card located in the Cisco 3825 router slot 0 (physical slot HWIC0):

Router(config)# controller e1 0/1/0

Router(config-controller)#

Step 3 Enter the clocking source (see Clocking Requirements for Cisco 3825 Router, page 4-2for more information).

Router(config-controller)#clock source {line [primary] internal}

Where:

line—Specifies the E1 line from which the clocking is taken.

internal—Specifies internal clocking.

primary—Primary clock source.

For example, the following command configures the clock source for the E1 controller:

Router(config-controller)# clock source internal

Note When you are using the clock source {line [primary] internal} command to change the configuration of an installed card, you must enter the no clock source {line [primary] internal} command first. Then enter the clock source {line {primary] internal} command for the new configuration information.

Step 4 Specify the channel-group and time slots to be mapped. Once you configure a channel-group, the serial interface is automatically created.

Router(config-controller)#channel-group channel-notimeslots timeslot-listspeed {64}

Where:

channel-no—ID number to identify the channel group. The valid range is 0 to 30.

timeslot-list—Timeslots (DS0s) to include in this channel group. The valid timeslots are 1 to 31.

speed {64}—The speed of the DS0: 64 kbps.

For example, the following command configures the channel-group and time slots for the E1 controller:

Router(config-controller)#channel-group 0 timeslots 1-31 speed 64

Note When you are using the channel-groupchannel-notimeslots timeslot-list{64} command to change the

configuration of an installed card, you must enter the no channel-groupchannel-notimeslots timeslot-listspeed {64} command first. Then enter the channel-groupchannel-notimeslots timeslot-list{64} command for the new configuration information.

Step 5 Exit back to global configuration mode.

Router(config-controller)# exit

Step 6 To Configure the GSM-Abis interface, first specify the serial interface that you want to configure by entering the interface configuration mode.

Router(config)# interface serial slot/subslot/port:channel-group

Where:

slot—Number of the slot being configured.

subslot—Number of the subslot being configured.

 

Cisco 3825 Mobile Wireless Edge Router Software Configuration Guide

4-22

OL-15667-03

Page 80
Image 80
Cisco Systems 3825 manual Routerconfig# controller e1 0/1/0, Routerconfig-controller# clock source internal