For B1, the bit interleaved parity (BIP) error report is calculated by comparing the BIP-8 code with the BIP-8
code that is extracted from the B1 byte of the following frame. Differences indicate that section-level bit errors
have occurred.
For B2, the BIP error report is calculated by comparing the BIP-8/24 code with the BIP-8 code that is extracted
from the B2 byte of the following frame. Differences indicate that line-level bit errors have occurred.
Signal failure BER and signal degrade BER are sourced from B2 BIP-8 error counts (as is B2-TCA). The
b1-tca and b2-tca keywords print only a log message to the console (if reports for them are enabled).
To determine the BER thresholds configured on the controller, use the show controllers sonet command.
Task ID
OperationsTask ID
read, writesonet-sdh
Examples
The following example shows how to configure thresholds on the SONET controller:
RP/0/RSP0/CPU0:router(config)# controller sonet 0/2/0/2
RP/0/RSP0/CPU0:router(config-sonet)# threshold sd-ber 8
RP/0/RSP0/CPU0:router(config-sonet)# threshold sf-ber 4
RP/0/RSP0/CPU0:router(config-sonet)# threshold b1-tca 4
Related Commands
DescriptionCommand
Permits selected SONET alarms to be logged to the console for
a SONET controller.
report (SONET), on page 886
Displays information about the operational status of SONET
layers.
show controllers sonet, on page 906
Cisco ASR 9000 Series Aggregation Services Router Interface and Hardware Component Command Reference,
Release 5.3.x
924
SONET Controller Commands on the Cisco ASR 9000 Series Router
threshold (SONET)
To Next Page
Loading...
Need help?
General
