Specifications

1-15
Cisco ONS 15454 Troubleshooting and Maintenance Guide
November 2001
Chapter 1 Alarm Troubleshooting
Procedure: Clear the BLSROSYNC Alarm
Step 1 Prior to accepting a new mapping table, verify that each node has a unique node ID number:
a. Log into a node on the ring.
b. Click the Provisioning > Ring tabs.
c. Record the Node ID number.
d. Repeat steps a – c for all nodes in the ring.
e. If two nodes have the same node ID number, change one node’s ring ID number.
f. Click Apply.
Step 2 Verify that each node has a ring ID that matches the other node ring IDs:
a. Log into the next node on the ring.
b. Click the Provisioning > Ring tabs.
c. Record the Ring ID number.
d. Repeat steps a – b for all nodes in the ring.
e. If a node has a ring ID number that does not match the other nodes, change one node’s ID.
f. Click Apply.
Step 3 Verify correct configuration of the east port and west port optical fibers (see the “E-W-MISMATCH”
section on page 1-30.)
Step 4 If the east-to-west configuration changes, click Apply.
The BLSR Ring Map Change screen appears.
Step 5 Click Yes to accept the Ring Map.
Step 6 If the alarm does not clear, check the ring map for each ONS 15454 in the network and verify that each
node is visible to the other nodes.
Step 7 If nodes are not visible, ensure that SDCC terminations exist on each node.
a. Click the Provisioning > SONET DCC tabs.
b. Click Create.
c. Click the OC-N card that links to the adjacent node.
d. Click OK.
Step 8 If alarms are raised when the DCCs are turned on, follow the troubleshooting procedure in the “EOC”
section on page 1-28.
Step 9 If the alarm still does not clear, log on to http://www.cisco.com/tac for more information or call the Cisco
Technical Assistance Center to report a service-affecting problem (1-877-323-7368).
1.3.23 CARLOSS
• Major, Service affecting