30-3
Cisco ASR 901 Series Aggregation Services Router Software Configuration Guide
OL-23826-09
Chapter 30 Bit Error Rate Testing
How to Configure BERT
• Terminating BERT on a T1/E1 Controller, page 30-3 (Required)
• Verifying BERT on a T1/E1 Controller, page 30-4 (Optional)
Performing BERT on a T1/E1 Line
To enable BERT pattern on a T1 or E1 controller, perform the following steps.
SUMMARY STEPS
1. enable
2. configure terminal
3. controller {t1 | e1} slot/port
4. bert pattern pattern interval time
DETAILED STEPS
Terminating BERT on a T1/E1 Controller
SUMMARY STEPS
1. enable
2. configure terminal
3. controller {t1 | e1} slot/port
Command Purpose
Step 1
enable
Example:
Router> enable
Enables privileged EXEC mode.
• Enter your password if prompted.
Step 2
configure terminal
Example:
Router# configure terminal
Enters global configuration mode.
Step 3
controller {t1 | e1}
slot/port
Example:
Router(config)# controller T1 0/5
Selects a T1 or E1 controller and enters controller configuration
mode.
Step 4
bert pattern
pattern
interval
time
Example:
Router(config-controller)# bert pattern 0s
interval 30
Sends a BERT pattern through the T1 or E1 line for the specified
time interval.
• pattern—Length of the repeating BERT test pattern. See
Table 30-1 for allowed values.
• interval—Specifies the duration of the BERT test, in minutes.
The interval can be a value from 1 to 14400.