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Cisco ASR 1000 Configuration Guide

Cisco ASR 1000
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20-16
Cisco ASR 1000 Series Aggregation Services Routers SIP and SPA Software Configuration Guide
OL-14127-08
Chapter 20 Troubleshooting the Serial SPAs
Using Bit Error Rate Tests
Table 20-8 provides information about some additiona BERT patterns supported by some of the
channelized SPAs on the Cisco ASR 1000 Series Routers:
Both the total number of error bits received and the total number of bits received are available for
analysis. You can set the testing period from 1 minute to 14,400 minutes (240 hours), and you can also
retrieve the error statistics anytime during the BER test.
When running a BER test, your system expects to receive the same pattern that it is transmitting. To help
ensure this:
Use a loopback at a location of your choice in the link or network. To see how to configure a
loopback, go to the
“Using loopback Commands” section on page 20-18.
Configure remote testing equipment to transmit the same BER test pattern at the same time.
Configuring a BER Test
To send a BER test pattern on an interface, use the bert pattern command. For more information, see
Chapter 19, “Configuring the 1-Port Channelized OC-3/STM-1 SPA and 1-Port Channelized
OC-12/STM-4 SPA.
Viewing a BER Test
You can view the results of a BER test with the show controllers command.
You can view the results of a BER test at the following times:
After you terminate the test using the no bert command.
After the test runs completely.
Anytime during the test (in real time).
Ta b l e 20-8 Additional BERT Pattern Support on the Channelized SPAs
Pattern
1-Port Channelized
OC-3/STM-1 SPA
1-Port Channelized
OC-12/STM-4 SPA
2-Port and 4-Port Channelized T3
SPA
1-in-8 Yes Yes Yes
3-in-24 Yes Yes Ye s
2^9 Yes Yes Yes
2^11 Yes Yes Yes
2^15-inverted Yes Yes Ye s
2^20-QRSS Yes Yes Ye s
2^23-inverted Yes Yes Ye s
55Octet Yes No Yes
55Daly Yes No Yes
DS0-1, DS0-2, DS0-3, and
DS0-4
Yes No Yes
Single Bit Error Injection No Yes No

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Cisco ASR 1000 Specifications

General IconGeneral
Operating SystemCisco IOS XE
Interfaces10 Gigabit Ethernet
Power SupplyAC or DC
Number of Total Expansion SlotsVaries by model
Management PortConsole
Redundant Power Supply SupportedYes
Width17.5 inches
MemoryVaries by model
StorageVaries by model
Dimensions (H x W x D)Varies by model
WeightVaries by model
Operating Temperature32°F to 104°F (0°C to 40°C)
Humidity5% to 95% non-condensing
MTBFVaries by model
RedundancyRedundant power supplies, fans, and route processors (depending on model)

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