14-67
Cisco ONS 15327 User Documentation, R3.3
June 2002
Chapter 14 Alarm Troubleshooting
Alarm Procedures
14.4.93 PEER-NORESPONSE
•
Major, Non-Service-Affecting
The switch agent raises a peer card not responding (PEER-NORESPONSE) alarm if either traffic card
in a protection group does not receive a response to the peer-status request message. This is a software
failure and occurs at the task level, as opposed to a communication failure, which is a hardware failure
between peer cards.
Procedure: Clear the
PEER-NORESPONSE Alarm Reported on XTC or OC-N Card
Step 1
Right-click the card reporting the alarm.
Step 2
Click
Reset Card
and
OK
on the confirmation dialog.
Step 3
Wait for the card to reset.
Step 4
At reset, the green Act LED on the card is replaced on the CTC by a white Ldg LED. When the card
finishes resetting, the green Act LED reappears.
Step 5
Right-click the peer card of the card reporting the alarm.
Step 6
Click
Reset Card
and
OK
on the confirmation dialog.
14.4.94 PLM-P
•
Critical, Service-Affecting
A payload label mismatch path (PLM-P) alarm indicates an SLMF. An invalid C2 byte in the SONET
path overhead causes an SLMF. The C2 byte is the signal label byte. This byte tells the equipment what
the SONET payload envelope contains and how it is constructed. It enables a SONET device to transport
multiple types of services.
The ONS 15327 encounters an SLMF when the payload, such as a DS-3 signal, does not match what the
signal label is reporting. An AIS alarm often accompanies the PLM-P alarm. If the PLM-P is the only
alarm reported with the AIS, clearing the PLM-P alarm clears the AIS alarm.
Warning
Invisible laser radiation may be emitted from the aperture ports of the single-mode, fiber-optic
modules when no cable is connected. Avoid exposure and do not stare into open apertures.
Caution
Always use the supplied ESD wristband when working with a powered ONS 15327. Plug the wristband
cable into the ESD jack located on the lower-right outside edge of the shelf assembly.
Procedure: Clear the PLM-P Alarm Reported on the XTC Card
Step 1
Verify that all circuits terminating in the reporting card are active:
a.
Click the
Circuits
tab.
b.
Verify that the State column lists the port as ACTIVE.
Summary of Contents for ONS 15327
Page 22: ...Contents xxii Cisco ONS 15327 User Documentation June 2002 I N D E X ...
Page 30: ...Figures xxviii Cisco ONS 15327 User Documentation June 2002 ...
Page 44: ...Procedures xlii Cisco ONS 15454 Installation and Operations Guide R3 2 June 2002 ...
Page 540: ...Glossary GL 16 Cisco ONS 15327 User Documentation R3 3 June 2002 ...