Cisco ONS 15454 SDH - DLP- D94 SNCP Protection Switching Test

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Cisco ONS 15454 SDH Procedure Guide, R7.0
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Chapter 17 DLPs D1 to D99
DLP- D94 SNCP Protection Switching Test
b. In the Set East Protection Operation dialog box, choose FORCE SPAN from the drop-down list.
Click OK.
c. Click Yes in the two Confirm MS-SPRing Operation dialog boxes that appear.
On the network view graphic, an F appears on the MS-SPRing channel where you invoked the Force
Span switch. The MS-SPRing span lines are purple where the Force was invoked, and all span lines
between other MS-SPRing nodes are green. The span lines might take a few moments to change
color.
Step 10 Click the Conditions tab.
a. Click Retrieve.
b. Verify that a SPAN-SW-EAST (Span Switch East) condition is reported on the node where you
invoked the Force switch, and a SPAN-SW-WEST (Span Switch West) condition is reported on the
node connected to the west line of the node where you performed the switch. Make sure the Filter
button in the lower right corner of window is off.
Step 11 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 if necessary.
Step 12 Display the MS-SPRing window where you invoked the Force Span switch (the window might be hidden
by the CTC window).
Step 13 Clear the switch on the east span:
a. Right-click the east port of the MS-SPRing node where you invoked the Force Span switch and
choose Set East Protection Operation.
b. In the Set East Protection Operation dialog box, choose CLEAR from the drop-down list. Click OK.
c. Click Yes in the Confirm MS-SPRing Operation dialog box.
On the network view graphic, the Force Span 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 14 From the File menu, choose Close to close the MS-SPRing window.
Step 15 Return to your originating procedure (NTP).
DLP-D94 SNCP Protection Switching Test
Purpose This task verifies that an SNCP span is switching correctly.
Tools/Equipment None
Prerequisite Procedures DLP-D60 Log into CTC, page 17-49
Required/As Needed Required
Onsite/Remote Onsite
Security Level Provisioning or higher