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Cisco ONS 15454 SDH Procedure Guide, R7.0
78-17194-01
Chapter 14 Add and Remove Nodes
NTP- D353 Add an MS-SPRing Node
Step 20 Referring to the diagram created in Step 2, complete the “DLP-D303 Initiate an MS-SPRing Force Ring
Switch” task on page 20-3 on the node that will connect to the new node on its east line (port). In the
Figure 14-2 example, the MS-SPRing force ring would occur at Node 3, East line (Slots 12 and 13).
Step 21 Click the Alarms tab.
a. Verify that the alarm filter is not on. See the “DLP-D227 Disable Alarm Filtering” task on
page 19-25 as necessary.
b. Verify that no unexplained alarms appear on the network. If alarms appear, investigate and resolve
them before continuing. Refer to the Cisco ONS 15454 SDH Troubleshooting Guide for procedures.
Step 22 Following the diagram created in Step 2, remove the fiber connections from the two nodes that will
connect to the new node.
a. Remove the west fiber from the node that will connect to the east port of the new node. In the
Figure 14-1 example, this is Node 1, Slot 5, and in Figure 14-2 this is Node 3, Slots 5 and 6.
b. Remove the east fiber from the node that will connect to the west port of the new node. In the
Figure 14-1 example, this is Node 3, Slot 12, and in Figure 14-2 this is Node 1, Slots 12 and 13.
Step 23 Connect fibers from the adjacent nodes to the new node following the diagram created in Step 2. Connect
the west port to the east port and the east port to the west port. For four-fiber MS-SPRings, connect the
protect fibers.
Step 24 After the newly added node appears in network view, double-click it to display the node in node view.
Step 25 Click the Provisioning > MS-SPRing tabs.
Step 26 Click Ring Map. Verify that the new node appears on the Ring Map with the other MS-SPRing nodes,
then click OK.
Step 27 From the View menu, choose Go to Network View and check the following:
a. Click the Provisioning > MS-SPRing tabs. Verify that the new node appears in the Node column.
b. Click the Alarms tab. Verify that MS-SPRing alarms such as RING MISMATCH,
E-W MISMATCH, PRC-DUPID (duplicate node ID), and APSCDFLTK (default K) do not appear.
If the new node does not appear under the Node column, or if MS-SPRing alarms appear, log into the
new node and verify that the MS-SPRing is provisioned on it correctly with the information from
Steps 11 and 12. If the node still does not appear, or if alarms persist, refer to the Cisco ONS 15454 SDH
Troubleshooting Guide.
Step 28 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 29 In network view, right-click the new node and choose Update Circuits With The New Node from the
shortcut menu. Verify that the number of updated circuits that appear in the dialog box is correct.
Step 30 If incomplete circuits still appear, refer to the Cisco ONS 15454 SDH Troubleshooting Guide.
Step 31 Click the History tab. Verify that the MS-SPRing_RESYNC condition appears for every node in the
MS-SPRing.
Step 32 Complete the “DLP-D194 Clear an MS-SPRing Force Ring Switch” task on page 18-82 to remove the
ring switch from the east and west MS-SPRing lines.
Step 33 (Optional) Complete the “NTP-D341 Two-Fiber MS-SPRing Acceptance Test” procedure on page 5-14
or “NTP-D342 Four-Fiber MS-SPRing Acceptance Test” procedure on page 5-16.
Stop. You have completed this procedure.
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