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Cisco ONS 15600 SDH Procedure Guide, R8.0
October 2007
Chapter18 DLPs F300 to F399
DLP- F342 MS-SPRing Switch Test
If you do not see any MS-SPRing exercise conditions, click the Filter button and verify that filtering is
not turned on. Also, check that alarms and conditions are not suppressed for a node or MS-SPRing drop
cards. See the “NTP-F195 Suppress and Restore Alarm Reporting” procedure on page9-7 for more
information.
Step7 Click the Alarms tab.
a. Verify that the alarm filter is not on. See the “DLP-F288 Disable Alarm Filtering” task on
page 17-78 for instructions.
b. Verify that no unexplained alarms appear on the network. If unexplained alarms appear, resolve
them before continuing. Refer to the Cisco ONS 15600 Troubleshooting Guide for alarm clearing
procedures.
Step8 From the File menu, choose Close to close the MS-SPRing window.
Step9 Return to your originating procedure (NTP).
DLP-F342 MS-SPRing Switch Test
Step1 From the View menu, choose Go to Network View.
Step2 Click the Provisioning > MS-SPRing tabs.
Step3 Click the row of the MS-SPRing you will switch, then click Edit.
Step4 Initiate a Force Ring switch on the west port:
a. Right-click any MS-SPRing node west port and choose Set West Protection Operation. (To move
a graphic icon, click it, then press Ctrl while you drag and drop it to a new location.)
Note For two-fiber MS-SPRings, the squares on the node icons represent the MS-SPRing working
and protect channels. You can right-click either channel.
b. In the Set West Protection Operation dialog box, choose FORCE RING from the drop-down list.
c. Click OK.
d. 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
Ring switch. The MS-SPRing span lines turn purple where the switch was invoked, and all span lines
between other MS-SPRing nodes turn green.
Purpose This task verifies that protection switching is working correctly in an
MS-SPRing.
Tools/Equipment None
Prerequisite Procedures DLP-F181 Log into CTC, page 16-34
Required/As Needed Required
Onsite/Remote Onsite
Security Level Provisioning or higher