Cisco ONS 15454 Troubleshooting Manual page 389

Chapter 2 Alarm Troubleshooting
The switch agent raises a Peer Card Not Responding alarm if either traffic card in a protection group
does not receive a response to the peer status request message. PEER-NORESPONSE is a software
failure and occurs at the task level, as opposed to a communication failure, which is a hardware failure
between peer cards.
However, for ML-MR-10 cards, a peer card not responding alarm is raised if a CPP card that is active
does not receive any heartbeat response from its peer card. This happens under the following conditions:
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•
•
•
Clear the PEER-NORESPONSE Alarm
Complete the
Step 1
behavior, see the
Step 2 Verify that the reset is complete and error-free and that no new related alarms appear in CTC. Verify the
LED appearance: A green ACT/SBY LED indicates an active card. An amber ACT/SBY LED indicates
a standby card.
For ML-MR-10 card, ensure that the CPP peer card has not failed, the correct protection configuration
Step 3
is present on both CPP cards, and protection is not disabled on the CPP peer card.
Step 4 If the alarm does not clear, log into the Cisco Technical Support Website at
http://www.cisco.com/techsupport for more information or log into
http://www.cisco.com/warp/public/687/Directory/DirTAC.shtml to obtain a directory of toll-free
Technical Support numbers for your country.
2.7.318 PLM-P
A Payload Label Mismatch Path alarm indicates that signal does not match its label. The condition is
indicated by a problematic C2 byte value in the SONET path overhead. The alarm is raised if all of the
following conditions are met:
•
•
•
•
•
For example, on nodes equipped with CTC Software R4.1 and earlier, this alarm could occur when you
have a DS3XM-6 card connected to a DS-3 card instead of a DS-1 card. The DS3XM-6 card expects a
C2 label byte value of 01. A DS-1 card transmits this value, but a DS-3 card transmits a value of 04. The
mismatch between the sent and expected values causes the PLM-P alarm.
November 2009
Peer card is not present in the ONS 15454 chassis
Peer card is not configured for protection
Protection is disabled on the peer card
Peer card has reset.
"Reset a Traffic Card in CTC" procedure on page 2-270
"2.8.2 Typical Traffic Card LED Activity During Reset" section on page
Default Severity: Critical (CR), Service-Affecting (SA)
SONET Logical Objects: STSMON, STSTRM
The received C2 byte is not 0x00 (unequipped).
The received C2 byte is not a PDI value.
The received C2 does not match the expected C2.
The expected C2 byte is not 0x01 (equipped, unspecified).
The received C2 byte is not 0x01 (equipped, unspecified).
for the reporting card. For the LED
Cisco ONS 15454 Troubleshooting Guide, R8.5
2.7.318 PLM-P
2-260.
2-195