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Cisco ME-3600X-24CX Series Switch Chassis Configuration Guide
OL-27620-01
Chapter 2 Configuring T1/E1 Interfaces
Saving the Configuration
Saving the Configuration
To save your running configuration to nonvolatile random-access memory (NVRAM), use the following
command in privileged EXEC configuration mode:
For information about managing your system images and configuration files, refer to the Cisco IOS
Configuration Fundamentals Configuration Guide and Cisco IOS Configuration Fundamentals
Command Reference publications.
Troubleshooting E1 and T1 Controllers
You can use the following methods to troubleshoot the E1 and T1 controllers using Cisco IOS software:
•
Setting Loopbacks
•
Run Bit Error Rate Test
Setting Loopbacks
The following sections describe how to set loopbacks:
•
Setting a Loopback on the E1 Controller, page 2-10
•
Setting a Loopback on the T1 Controller, page 2-10
Command
Purpose
Step 1
Router# configure terminal
Enters global configuration mode.
Step 2
Router(config)# controller {t1 |
e1}0/number
Select the controller to configure and enter global
configuration mode.
•
number—Specifies the location of the controller.
The number range for T1 and E1 is 1 to 16.
Step 3
Router(config-controller)# no
channel-group t1 t1-number
Select the channel group you want to remove.
•
t1 t1-number—Channel-group number.
Step 4
Follow the steps in
Enabling the Interfaces
on the Controller, page 2-2
.
Creates a new channel group with the new configuration.
Command
Purpose
Router# copy running-config startup-config
Writes the new configuration to NVRAM.