18-45
Cisco ONS 15600 SDH Procedure Guide, R8.0
October 2007
Chapter18 DLPs F300 to F399
DLP- F342 MS-SPRing Switch Test
Step11 Clear the switch on the west port:
a. Right-click the west port of the MS-SPRing node where you invoked the Force Ring switch and
choose Set West Protection Operation.
b. In the Set West 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.
Step12 In 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.
Step13 Verify the MS-SPRing line status on each node:
a. From the View menu, choose Go to Node View.
a. Click the Maintenance > MS-SPRing tabs.
b. Verify that the line states are shown as Act/Stby on both the east and west sides of each node in the
ring.
Step14 Initiate a Force Ring switch on the east port:
a. Right-click the east port of MS-SPRing node and choose Set East Protection Operation.
b. In the Set East 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 working MS-SPRing channel where you invoked
the Force Ring switch. The MS-SPRing span lines are purple where the Force Ring switch was
invoked, and all span lines between other MS-SPRing nodes are green. The span lines might take a
few moments to change color.
Step15 Verify the conditions:
a. Click the Conditions tab.
b. Click Retrieve.
c. Verify that the following conditions are reported on the node where you invoked the Force Ring
switch on the east port:
•FORCE-REQ-RING—A Force Switch Request On Ring condition is reported against the span’s
working slot on the east side of the node.
•RING-SW-WEST—A Ring Switch Active on the west side condition is reported against the
working span on the east side of the node.
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.
d. Verify that the following conditions are reported on the node that is connected to the East line of the
node where you performed the switch:
•FE-FRCDWKSWPR-RING—A Far-End Working Facility Forced to Switch to Protection
condition is reported against the working span on the west side of the node.