Cisco ONS 15454 Series Procedure Manual page 504

DLP-A93 Four-Fiber BLSR Span Switching Test
Verify that a SPAN-SW-WEST (Span Switch West) condition is reported on the node where you
c.
invoked the Force Span switch, and a SPAN-SW-EAST (Span Switch East) 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. Click the Node column to sort conditions by node.
Step 6 Click the Alarms tab.
Verify that the alarm filter is not on. See the
a.
page 19-17
Verify that no unexplained alarms appear on the network. If unexplained alarms appear, resolve
b.
them before continuing. Refer to the Cisco ONS 15454 Troubleshooting Guide if necessary.
Step 7 Display the BLSR window where you invoked the Force Span switch (the window might be hidden by
the CTC window).
Step 8 Clear the west switch:
Right-click the west port of the BLSR node where you invoked the Force Span switch and choose
a.
Set West Protection Operation.
b. In the Set West Protection Operation dialog box, choose CLEAR from the drop-down list.
Click OK.
c.
Click Yes in the Confirm BLSR Operation dialog box.
d.
On the network view graphic, the Force Span switch is removed, the F disappears, and the span lines
between BLSR nodes will be purple and green. The span lines might take a few moments to change
color.
Switch the east span:
Step 9
Right-click the east port of BLSR node and choose Set East Protection Operation.
a.
In the Set East Protection Operation dialog box, choose FORCE SPAN from the drop-down list.
b.
Click OK.
c.
Click Yes in the two Confirm BLSR Operation dialog boxes that appear.
d.
On the network view graphic, an F appears on the BLSR channel where you invoked the Force Span
switch. The BLSR span lines are purple where the Force Span switch was invoked, and all span lines
between other BLSR nodes are green. The span lines might take a few moments to change color.
Verify the conditions:
Step 10
Click the Conditions tab.
a.
b. Click Retrieve.
Verify that a SPAN-SW-EAST condition is reported on the node where you invoked the Force Span
c.
switch, and a SPAN-SW-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.
Click the Alarms tab.
Step 11
a. Verify that the alarm filter is not on. See the
page 19-17
Verify that no unexplained alarms appear on the network. If unexplained alarms appear, resolve
b.
them before continuing. Refer to the Cisco ONS 15454 Troubleshooting Guide if necessary.
Display the BLSR window where you invoked the Force Span switch (the window might be hidden by
Step 12
the CTC window).
Cisco ONS 15454 Procedure Guide, R5.0
17-94
as necessary.
as necessary.
"DLP-A227 Disable Alarm Filtering" task on
"DLP-A227 Disable Alarm Filtering" task on
Chapter 17 DLPs A1 to A99
March 2005