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Bidirectional Line Switched Rings
Figure 5-16 A BLSR with a newly-added fourth node
West
West
Log out of CTC and then log back into any node in the BLSR.
Step 11
Step 12
In node view, select the Provisioning > Ring tabs and click Ring Map.
On the BLSR Map Ring Change dialog box, click Yes.
Step 13
On the BLSR Ring Map dialog box, verify that the new node is added. If it is, click Accept. If it does
Step 14
not appear, log into the new node. Verify that the BLSR is provisioned correctly according to the
"Provision the BLSR" procedure on page
appear, repeat the steps in the procedure making sure that no errors were made.
Step 15
From the Go To menu, select Network View. Click the Circuits tab. Wait until all the circuits are
discovered. The circuits that pass through the new node will be shown as incomplete.
Step 16
In network view, right-click the new node and select Update Circuits With The New Node from the
shortcut menu. Verify that the number of updated circuits displayed in the dialog box is correct.
Step 17
Select the Circuits tab and verify that no incomplete circuits are present.
Clear the protection switch for the node that is using its east port to connect to the new node, and for the
Step 18
node that is using its west port to connect to the new node.
To clear the protection switch from the east port, display the Maintenance > Ring tabs. From the
a.
East Switch list choose CLEAR. Click Apply.
To clear the protection switch from the west port, choose CLEAR from the West Switch list. Click
b.
Apply.
Cisco ONS 15454 Installation and Operations Guide
5-20
Tx
Tx
Rx
Rx
East
Slot 5
Slot 12
Node 1
Node 1 Fiber
connected to
Slot 12 (East)
Tx
Tx
Rx
Rx
East
Slot 5
Slot 12
Node 3
West
Slot 5
Tx
Rx
West
Slot 5
Node 4 Fiber
connected to
Slot 5 (West)
5-14, then repeat Steps 12 – 13. If the node still does not
Chapter 5
SONET Topologies
Tx
Tx
Rx
Rx
East
Slot 12
Node 2
Tx
Rx
East
Slot 12
Node 4
78-13453-01
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