Cisco ONS 15454 Troubleshooting Manual page 270

2.7.72 DATA-CRC
2.7.72 DATA-CRC
The data cyclic redundancy check (CRC) Bad Packet Count Exceeds Threshold alarm indicates that
Cisco proprietary ring-wrapping (RPR) has been triggered for an ML-Series card in high-level data link
(HDLC) mode, but no SONET or data-level alarm is raised along with the
to indicate the failure.
In a typical scenario that triggers Cisco proprietary RPR protection, the errored node raises RPRW, and
SONET or data errors such as the
however, a packet-over-SONET (POS) port is placed in down administrative state, the card will raise an
RPRW without raising any SONET B3 bit alarms or data alarms. The DATA-CRC alarm accompanies
this instance of RPRW to indicate the signal interruption.
Clear the DATA-CRC Alarm
Determine whether the
Step 1
appropriate trouble-clearing procedure in this chapter.
If the DATA-CRC alarm does not clear, check whether the alarmed card POS port is in the Down
Step 2
administrative state:
a.
b.
c.
If the alarm does not clear, log into the Technical Support Website at http://www.cisco.com/techsupport
Step 3
for more information or call Cisco TAC 1 800 553-2447 in order to report a Service-Affecting (SA)
problem.
2.7.73 DATAFLT
The Software Data Integrity Fault alarm occurs when the TCC2/TCC2P exceeds its flash memory
capacity.
When the system reboots, the last configuration entered is not saved.
Caution
Clear the DATAFLT Alarm
Complete the
Step 1
page
Cisco ONS 15454 Troubleshooting Guide, R8.5
2-76
Default Severity: Major (MJ), Service-Affecting (SA)
SONET Logical Objects: CE100T, ML100T, ML1000, MLFX
"RPRW" alarm on page
Double-click the ML-Series card to display the card view.
Click the Provisioning > POS Ports tabs.
View the port's setting in the Admin State column. If it is Down, verify that both POS ports are
properly configured. Refer to the Cisco ONS 15454 and Cisco ONS 15454 SDH Ethernet Card
Software Feature and Configuration Guide for configuration information.
Default Severity: Minor (MN), Non-Service-Affecting (NSA)
SONET Logical Object: NE
"Reset an Active TCC2/TCC2P Card and Activate the Standby Card" procedure on
2-270.
"TPTFAIL (ML100T, ML1000, MLFX)" alarm on page
2-215, is raised on the ring. If so, clear it using the
Chapter 2 Alarm Troubleshooting
"RPRW" alarm on page 2-215
2-249. If,
November 2009