Making E1 Connections - Cisco EF4116 Hardware Installation And Maintenance Manual

Making Network Connections

Making E1 Connections

If you installed a new CE1 module or if you want to change the configuration of an existing
controller, you must enter the configuration mode. If you replaced the CE1 that was previously
configured, the system will recognize the new CE1 and bring it up in the existing configuration.
After you verify that the new CE1 is recognized by the Cisco 4000, use the privileged-level
configure command to configure the new CE1 module. Be prepared with the information you will
need, such as the following:
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The following steps describe a basic E1 configuration. Press the Return key after each step.
Step 1
Step 2
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3-16 Cisco 4000 Series Hardware Installation and Maintenance
E1 information, for example line code, and framing type
Channel-group information and timeslot mapping
Protocols and encapsulations you plan to use on the new interfaces
Internet protocol (IP) addresses if you will configure the interfaces for IP routing
Whether the new interface will use bridging
At the privileged-mode prompt, enter the configuration mode and specify that the console
terminal will be the source of the configuration subcommands as follows:
Router# conf t
Enter configuration commands, one per line. End with CNTL/Z. Router(config)#
At the prompt, specify the controller to configure by entering the subcommand cont,
followed by e1, and unit number . The example that follows is for the CE1 module unit
number 1:
Router(config)# cont e1 1
At the prompt, specify the framing type.
Router(config-controller)# framing crc4
At the prompt, specify the channel-group modification command, channel-group and
timeslots to be mapped. The example shows channel-group 0 and timeslots 1, 3 through 5,
and 7 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)#
At the prompt, specify the interface, serial, unit number, and channel-group to modify.
Router(config-controller)# int serial 1:0
At the prompt, assign an IP address and subnet mask to the interface with the ip address
configuration subcommand as in the following example:
Router(config-if)# ip address 1.1.15.1 255.255.255.0
Router(config-if)#
Add any additional configuration subcommands required to enable routing protocols and
adjust the interface characteristics.
After including all of the configuration subcommands, to complete the configuration, enter
Ctrl-Z (hold down the Control key while you press Z) to exit the configuration mode.