1-63
Cisco ONS 15310-CL and Cisco ONS 15310-MA Troubleshooting Guide, R7.0
78-17235-01
Chapter 1 General Troubleshooting
1.10.4 Circuit Creation Error with VT1.5 Circuit
Clear AIS-V on Unused Controller Card VT Circuits
Step 1
Determine the affected port.
Step 2
Record the node ID, slot number, port number, and VT number.
Step 3
Create a unidirectional VT circuit from the affected port back to itself, such as
Source node/Slot 2/Port 2/VT 13 cross connected to Source node/Slot 2/Port 2/VT 13.
Step 4
Uncheck the Bidirectional check box in the circuit creation window.
Step 5
Give the unidirectional VT circuit an easily recognizable name, such as DeleteMe.
Step 6
Display the controller card (15310-CL-CTX or CTX2500) in CTC card view. Click the
Maintenance >
DS1
tabs.
Step 7
Locate the VT that is reporting the alarm (for example, DS3 #2, DS1 #13).
Step 8
From the Loopback Type list, choose
Facility
and click
Apply
.
Step 9
Click
Circuits
.
Step 10
Find the one-way circuit you created in
Step 3
. Select the circuit and click
Delete
.
Step 11
Click
Yes
in the Delete Confirmation dialog box.
Step 12
In node view, double-click the controller card (15310-CL-CTX or CTX2500). The card view appears.
Step 13
Click the
Maintenance
> DS1
tabs.
Step 14
Locate the VT in the Facility Loopback list.
Step 15
From the Loopback Type list, choose
None
and then click
Apply
.
Step 16
Click the
Alarm
tab and verify that the AIS-V alarms have cleared.
Step 17
Repeat this procedure for all the AIS-V alarms on the controller.
1.10.4 Circuit Creation Error with VT1.5 Circuit
Symptom
You might receive an “Error while finishing circuit creation. Unable to provision circuit.
Unable to create connection object at
node-name
” message when trying to create a VT1.5 circuit in CTC.
Table 1-23
describes the potential causes of the symptom and the solutions.
Table 1-22
AIS-V on Unused 15310-CL-CTX Card VT Circuits
Possible Problem
Solution
The port on the
reporting node is
in-service but a node
upstream on the circuit
does not have an OC-N
port in service.
An AIS-V indicates that an upstream failure occurred at the VT layer. AIS-V
alarms also occur on VT circuits that are not carrying traffic and on stranded
bandwidth.
Perform the
“Clear AIS-V on Unused Controller Card VT Circuits”
procedure on page 1-63
.
