Installation guide

5-16 Cisco 4000 Series Installation Guide

Additional Configuration Tasks

• IP addresses if you will conﬁgure the interfaces for IP routing

• Whether the new interface will use bridging

Take the following steps to complete a basic E1 conﬁguration.

Step 1 At the privileged-level prompt, enter the conﬁguration terminal command to

enter conﬁguration mode and specify that the console terminal will be the source

of the conﬁguration commands:

Router# conf t

Enter configuration commands, one per line. End with CNTL/Z.

Router(config)#

Step 2 Enter the controller e1 command to specify the unit number of the network

processor module you are conﬁguring. For more information on unit numbers,

refer to the section “Unit Numbering” in the chapter “Cable Connection.” For

example, if you are conﬁguring unit number 1, enter the following command:

Router(config)# cont e1 1

Step 3 Specify the framing type:

Router(config-controller)# framing crc4

Step 4 Specify the channel group and time slots to be mapped. The command shown

below sets the channel group to 0 and time slots 1, 3 through 5, and 7 are selected

for mapping:

Router(config-controller)# channel-group 0 timeslots 1,3-5,7

Router(config-controller)#

%LINEPROTO-5-UPDOWN: Line protocol on Interface Serial1:0, changed

state to down %LINEPROTO-5-UPDOWN: Line protocol on Interface

Serial1:0, changed state to up Router(config-controller)#

Router(config-controller)#

Step 5 Specify the serial interface, unit number, and channel group you want to modify:

Router(config-controller)# int serial 1:0

Step 6 Assign an IP address and subnet mask to the interface using the ip address

command as follows, substituting the appropriate IP address and subnet mask

for your site: