Specifications

1-80
Cisco ONS 15454 Troubleshooting and Maintenance Guide
November 2001
Chapter 1 Alarm Troubleshooting
Step 4 If Steps 1 – 3 do not clear the alarm, replace the transmit cable,.
1.3.122 UNEQ-P
• Major, Service affecting
An Unequipped Path Alarm occurs when the path does not have a valid sender. The UNEQ-P indicator
is carried in the C2 signal path byte in the SONET overhead. The source of the problem is the node that
is transmitting the signal into the node reporting the UNEQ-P.
UNEQ-P occurs in the node that terminates a path. The path layer is the segment between the originating
equipment and the terminating equipment. This segment can encompass several consecutive line
segments. The originating equipment puts bits together into a SONET payload and the terminating
equipment breaks the bits apart again. SONET multiplexers, such as the ONS 15454, often perform the
origination and termination tasks of the SONET payload.
A UNEQ-P error message on the ONS 15454 indicates that the node reporting the RFI-P is the
terminating node on that path segment.
Note If you have created a new circuit but it has no signal, an UNEQ-P alarm is reported on the OC-N cards
and an AIS-P alarm is reported on the terminating cards. These alarms clear when the circuit carries
a signal.
Caution Deleting a circuit affects traffic.
Caution Always use the supplied electrostatic discharge wristband when working with a powered ONS 15454.
Plug the wristband cable into the ESD jack located on the lower-right outside edge of the shelf
assembly.
Procedure: Clear the UNEQ-P Alarm on the Line Card
Step 1 Display the network view and right-click the span reporting SLMF.
Step 2 Select Circuits from the menu.
Step 3 If the specified circuit is a VT tunnel, check for VTs assigned to the VT tunnel.
Step 4 If the VT tunnel has no assigned VTs, delete the VT tunnel from the list of circuits.
Step 5 If you have complete visibility to all nodes, check for incomplete circuits such as stranded bandwidth
from circuits that were not deleted completely.
Step 6 If you find incomplete circuits, verify whether they are working circuits and if they are still passing
traffic.
Step 7 If the incomplete circuits are not needed or are not passing traffic, delete them and log out of CTC. Log
back in and check for incomplete circuits again. Recreate any needed circuits.
Step 8 Verify that all circuits terminating in the reporting card are active:
a. Click the Circuits tab.