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Cisco ONS 15454 SDH Procedure Guide, R7.0
78-17194-01
Chapter 17 DLPs D1 to D99
DLP- D92 Four-Fiber MS-SPRing Exercise Span Test
DLP-D92 Four-Fiber MS-SPRing Exercise Span Test
Step 1 From the View menu, choose Go to Network View.
Step 2 Click the Provisioning > MS-SPRing tabs.
Step 3 Click the MS-SPRing you will exercise, then click Edit.
Step 4 Exercise the west span:
a. Right-click the west port of the four-fiber MS-SPRing node that you want to exercise and choose
Set West Protection Operation. (To move a graphic icon, press Ctrl while you drag and drop it to
a new location.)
Note The squares on the network map represent ports. Right-click a working port.
b. In the Set West Protection Operation dialog box, choose EXERCISE SPAN from the drop-down
list. Click OK.
c. In the Confirm MS-SPRing Operation dialog box, click Yes .
On the network view graphic, an E appears on the MS-SPRing channel where you invoked the
exercise. The E will appear for 10 to 15 seconds, then disappear.
Step 5 Click the Conditions tab, then click Retrieve.
Step 6 Verify the following conditions:
• EXERCISING-SPAN—An Exercise Ring Successful condition is reported on the node where the
span was exercised.
• FE-EX-SPAN—A Far-End Exercise Span Request condition is reported against the east span of the
node connected to the west side of the node where you exercised the span.
• KB-PASSTHR—If applicable, a K Byte Pass Though Active condition is reported.
Note Make sure the Filter button in the lower right corner of the window is off. Click the Node column
to sort conditions by node.
Step 7 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.
Purpose This task exercises a four-fiber MS-SPRing span. Ring exercise conditions
(including the K-byte pass-through) are reported and cleared within 10 to
15 seconds.
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
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