18-46
Cisco ONS 15600 SDH Procedure Guide, R8.0
October 2007
Chapter18 DLPs F300 to F399
DLP- F342 MS-SPRing Switch Test
•RING-SW-EAST—A Ring Switch Active on the east side condition is reported against the
working span on the west side of the node.
Step16 (Optional) If you remapped the K3 byte to run an ONS15600 SDH MS-SPRing through third-party
equipment, verify a FULLPASSTHR-BI condition reported on other nodes that are not connected to the
west side of the node where you invoked the Force Ring switch.
Step17 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. 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.
Step18 From the View menu, choose Go To Network View.
Step19 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 procedures.
Step20 Display the MS-SPRing window where you invoked the Force Ring switch (the window might be hidden
by the CTC window).
Step21 Clear the switch on the east port:
a. Right-click the east 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.
Step22 From 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.
Step23 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 that the line states are shown as Act/Stby on both the east and west sides of each node in the
ring.
Step24 From the File menu, choose Close to close the MS-SPRing window.
Step25 Return to your originating procedure (NTP).