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Cisco ONS 15454 Installation and Operations Guide
November 2001
Chapter5 SONET Topologies
Bidirectional Line Switched Rings
When you perform a manual switch, a manual switch request equipment alarm (MANUAL-REA) is
generated. This is normal.
Caution Traffic is unprotected during a protection switch.
c. Log into the node that is connected through its west port to the node where the trunk card will be
moved. (In the Figure 5-17 example, this is Node 3.) Click the Maintenance > Ring tabs.
d. From the West Switch list, choose FORCE RING. Click Apply.
Step 3 Log into the node where the trunk card you will move is installed.
Step 4 Click the Circuits tab (Figure5-19). Write down the circuit information or, from the File menu, select
Print or Export to print or export the information; you will need it to restore the circuits later. See the
“Printing and Exporting CTC Data” section on page 2-26 for more information.
Figure5-19 Deleting circuits from a BLSR trunk card
Step 5 Delete the circuits on the card you are removing:
a. Highlight the circuit(s). To select multiple circuits, press the Shift or Ctrl key.
b. Click Delete.
c. On the Delete Circuit dialog box, click Yes .
Step 6 Delete the SONET DCC termination on the card you are removing:
a. Click the Provisioning > Sonet DCC tabs.
b. From the SDCC Terminations list, click the SONET DCC you need to delete and click Delete.