Cisco ASR 1000 Series

Table 27: DS3/T3/E3 BERT Patterns
DescriptionPattern
All 0’s in the test pattern (...000...).
0s
All 1’s in the test pattern (...111...).
1s
Pseudorandom 1 O.151 test pattern that is 32,768 bits
in length.
2^15
Pseudorandom 1 O.153 test pattern that is 1,048,575
bits in length.
2^20
Pseudorandom 1 O.151 test pattern that is 8,388,607
bits in length.
2^23
Repeating test pattern of alternating 0’s and 1’s
(...01010...).
alt-0-1
To configure a BERT pattern for DS1/T1/E1, use one of the following commands:
PurposeCommand
Sends a BERT pattern on a line, where:
• channel-number—Number identifying the
specific T1 channel where you want to run
BERT.
• e1-number —Number identifying the specific
E1 channel where you want to run BERT.
• pattern—Specifies the type of repeating BERT
test pattern. Supported values are 0s, 1s, 1-in-8,
2^11, 2^15, 2^15-inverted, 2^20- O.153,
2^20-QRSS, 2^23, 2^23-inverted, 2^9, 3-in-24,
and alt-0-1.
• interval time —Specifies the duration of the
BERT test, in minutes. The range is 1 to 14400.
Router(config-controller)# t1 channel-number bert
pattern pattern interval time
or
Router(config-ctrlr-sts1)# e1 e1-number bert pattern
pattern interval time
To configure a BERT pattern for DS3/T3/E3, use the following command in controller configuration mode:
Cisco ASR 1000 Series Aggregation Services Routers SIP and SPA Software Configuration Guide, Cisco IOS XE
Everest 16.5
OL-14127-17 317
Configuring the 1-Port Channelized OC-3/STM-1 SPA and 1-Port Channelized OC-12/STM-4 SPA
Optional Configurations