Cisco ONS 15454 SDH - Page 501

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Cisco ONS 15454 SDH Procedure Guide, R7.0
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Chapter 17 DLPs D1 to D99
DLP- D91 MS-SPRing Switch Test
Step 20 (Optional) If you remapped the K3 byte to run an ONS 15454 SDH MS-SPRing through third-party
equipment, verify a KBYTE-PASSTHRU condition reported on other nodes that are not connected to the
west side of the node where you invoked the Force Ring switch.
Step 21 Verify the MS-SPRing line status on each node:
a. From the View menu, choose Go to Node View.
b. Click the Maintenance > MS-SPRing tabs.
c. Verify the following:
• The line states are shown as Stby/Stby on the east side of the node and Act/Act on the west side
of the node where you invoked the Force Ring switch.
• The line states are shown as Stby/Stby on the west side of the node and Act/Act on the east side
of the node that is connected to the east line of the node where you invoked the Force Ring
switch.
• The line states are shown as Act/Act on both east and west sides of the remaining nodes in the
ring.
Step 22 From the View menu, choose Go to Network View.
Step 23 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 unexplained alarms appear, resolve
them before continuing. Refer to the Cisco ONS 15454 SDH Troubleshooting Guide.
Step 24 Display the MS-SPRing window where you invoked the Force Ring switch (the window might be hidden
by the CTC window).
Step 25 Clear the Force Ring switch on the east port:
a. Right-click the west port of the MS-SPRing node where you invoked the Force Ring switch and
choose Set East Protection Operation.
b. In the Set East Protection Operation dialog box, choose CLEAR from the drop-down list.
c. Click OK.
d. Click Yes in the Confirm MS-SPRing Operation dialog box.
On the network view graphic, the Force Ring switch is removed, the F indicating the switch is
removed, and the span lines between MS-SPRing nodes will be purple and green. The span lines
might take a few moments to change color.
Step 26 In network view, click the Conditions tab. Verify that all conditions raised in this procedure are cleared
from the network. If unexplained conditions appear, resolve them before continuing.
Step 27 Verify the MS-SPRing line status on each node:
a. From the View menu, choose Go to Node View.
a. Click the Maintenance > MS-SPRing tabs.
b. Verify that the line states are shown as Act/Stby on both the east and west sides of each node in the
ring.
Step 28 From the File menu, choose Close to close the MS-SPRing window.
Step 29 Return to your originating procedure (NTP).