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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
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
Summary of Contents for ONS 15454 SDH
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