14-9
Cisco ONS 15454 SDH Procedure Guide, R7.0
78-17194-01
Chapter 14 Add and Remove Nodes
NTP- D213 Remove an MS-SPRing Node
Step 15 If the two nodes that will be connected after the MS-SPRing node is removed have OC48/STM16 AS
trunk (span) cards and their K3 bytes were remapped, complete the “DLP-D388 Verify MS-SPRing
Extension Byte Mapping” task on page 20-81. If not, continue with Step 16.
Step 16 Reconnect the fiber of the two neighboring nodes directly, west port to east port. For example, in
Figure 14-3, you would connect the east port of Node 3 (Slot 12) to the west port of Node 1 (Slot 5).
Step 17 Complete the following substeps:
a. From the View menu, choose Go to Other Node. Choose one of the newly connected nodes and
click OK.
b. Click the Provisioning > MS-SP Ring tabs.
c. Choose the MS-SPRing that originally contained the removed node, and then click Ring Map.
d. Wait until the removed node is no longer listed.
e. Repeat steps a through d for the other newly connected node in the MS-SPRing.
Step 18 Complete the “DLP-D196 Delete an MS-SPRing from a Single Node” task on page 18-83.
Step 19 Click the History tab. Verify that the MSSPR_RESYNC condition appears for every node in the
MS-SPRing.
Step 20 Complete the “DLP-D194 Clear an MS-SPRing Force Ring Switch” task on page 18-82 to remove the
Force protection switches.
Step 21 According to local site practice, complete the “NTP-D341 Two-Fiber MS-SPRing Acceptance Test”
procedure on page 5-14.
Step 22 Complete the “DLP-D79 Remove Pass-through Connections” task on page 17-71.
Step 23 Log back into a node on the reduced ring. In the CTC Login dialog box, uncheck the Disable Network
Discovery check box.
Note The deleted node will appear in network view until all RS-DCC terminations are deleted. To
delete RS-DCC terminations, complete the “DLP-D360 Delete a Regenerator-Section DCC
Termination” task on page 20-66.
Step 24 Click the Circuits tab and verify that no incomplete circuits are present. If incomplete circuits appear,
repeat Steps 22 and 23.
Step 25 If you delete a node that was in a login node group, you will see incomplete circuits for that node in the
CTC network view. Although it is no longer part of the ring, the removed node still reports to CTC until
it is no longer in a login node group. If necessary, complete the “DLP-D54 Delete a Node from a
Specified Login Node Group” task on page 17-47.
Step 26 To remove another node from a MS-SPRing, repeat this procedure for that node.
Step 27 (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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