Apsmm - Cisco ONS 15327 User Documentation
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Also See for ONS 15327:
- Procedure manual (478 pages) ,
- Manual (42 pages) ,
- Reference manual (166 pages)
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Chapter 14
Alarm Troubleshooting
If two nodes have the same node ID number, change the ID number of one node so that each node has a
Step 2
unique node ID:
a.
b.
c.
d.
If the alarm does not clear, lockout a span on the ring and then clear the lockout:
Step 3
a.
b.
c.
d.
e.
f.
g.
14.4.11 APSMM
•
An APS mode mismatch failure (APSMM) alarm occurs when there is a mismatch of the
protection-switching schemes at the two ends of the span. If one node is provisioned for bidirectional
switching, the node at the other end of the span must also be provisioned for bidirectional switching. If
one end is provisioned for bidirectional and the other is provisioned for unidirectional, an APSMM alarm
occurs in the ONS node that is provisioned for bidirectional. This alarm occurs in a 1+1 configuration.
Procedure: Clear the APSMM Alarm in 1+1 Mode
For the reporting ONS 15327, display the CTC node view and click the Provisioning > Protection tabs.
Step 1
Step 2
Choose the 1+1 protection group configured for the OC-N cards.
This is the protection group optically connected (with DCC connectivity) to the far end.
Record whether the bidirectional switching box is checked.
Step 3
June 2002
Display the network view.
Login to one of the nodes that uses the repeated node ID recorded in Step 1.
If the node names shown on the network view do not correlate with the node IDs, login to
Note
each node and click the Provisioning > Ring tabs. This window displays the node ID of the
node you are logged into.
Click the Node ID table cell to reveal a drop-down menu.
Select a unique node ID from the drop-down menu and click Apply.
Locking out and clearing the lockout on a span causes the ONS 15327 to generate a new K
Note
byte. The APSCNMIS alarm clears when the node receives a K byte containing the correct
node ID.
Click the Ring > Maintenance tabs.
Click the table cell under the West Switch heading to reveal the drop-down menu.
Select LOCKOUT SPAN and click Apply.
Click OK on the BLSR Operations dialog box.
Click the same table cell under the West Switch heading to reveal the drop-down menu.
Select CLEAR and click Apply.
Click OK on the BLSR Operations dialog box.
Minor, Non-Service-Affecting
Cisco ONS 15327 User Documentation, R3.3
Alarm Procedures
14-15
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