Configuring Triggers For Crc Errors - Cisco ONS 15454 SDH Configuration Manual

Chapter 26 Configuring IEEE 802.17b Resilient Packet Ring
Command
Step 4
Router(config)# end
Step 5
Router# copy running-config startup-config

Configuring Triggers for CRC Errors

You can configure a span shutdown when the ML-Series card receives CRC errors at a rate that exceeds
the configured threshold and configured soak time.
To enable and configure the triggers for CRC errors, perform the following procedure, beginning in
global configuration mode:
Command
Step 1
Router(config)# interface rpr-ieee 0
Step 2
Router(config-if)# trigger crc-error
threshold crc-error-rate {east | west |
<cr>}
Cisco ONS 15454 and Cisco ONS 15454 SDH Ethernet Card Software Feature and Configuration Guide, R8.0
Configuring Triggers for CRC Errors
Purpose
Returns to privileged EXEC mode.
(Optional) Saves configuration changes to the
TCC2/TCC2P flash database.
Purpose
Activates interface configuration mode to
configure the RPR-IEEE interface.
Configures the threshold for the CRC errors on the
RPR-IEEE span. The threshold is the percentage
of received, continuously CRC-errored frames
required during the delay period (soak time).
When the threshold is crossed, the excessive crc
alarm is declared. This also triggers the CRC error
action, if one is configured.
For specify the CRC packet
crc-error-rate,
error rate variable in the range from 2 to 4. The
error rate variable corresponds to the CRC error
rate as a percentage of traffic.
• 2 is 10e-2 or 1% of traffic (1 CRC error in100
frames).
• 3 is 10e-3 or 0.1% of traffic. (1 CRC error
in1000 frames).
4 is 10e-4 or 0.01% of traffic (1 CRC error
•
in10000 frames).
The default threshold is 3.
(Optional) You can also specify the east or west
ringlet.
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