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Cisco ONS 15327 Troubleshooting Guide, R3.4
April 2003
Chapter 1 General Troubleshooting
Circuits and Timing
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 “delete me.”
Step 6 Display the XTC-28-3 card 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 (line) 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 Display the XTC-28-3 card in CTC card view. Click Maintenance > DS1.
Step 13 Locate the VT in Facility (line) Loopback list.
Step 14 From the Loopback Type list, choose None and then click Apply.
Step 15 Click the Alarm tab and verify that the AIS-V alarms have cleared.
Step 16 Repeat this procedure for all the AIS-V alarms on the XTC-28-3 cards.
1.7.3 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 1-27 describes the potential cause(s) of the symptom and the solution(s).
1.7.4 DS3 Card Does Not Report AIS-P From External Equipment
Symptom A DS-3 card does not report STS AIS-P from the external equipment/line side.
Table 1-28 describes the potential cause of the symptom and the solution.
Table 1-27 Circuit Creation Error with VT1.5 Circuit
Possible Problem Solution
You might have run out
of bandwidth on the VT
cross-connect matrix at
the ONS 15327
indicated in the error
message.
The matrix has a maximum capacity of 336 bidirectional VT1.5
cross-connects. Certain configurations exhaust VT capacity with less than
336 bidirectional VT1.5s in a BLSR or less than 224 bidirectional VT1.5s in
a UPSR or 1+1 protection group. Refer to the Cisco ONS 15327 Reference
Manual for more information.