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Cisco ONS 15454 Procedure Guide, R5.0
September 2005
Chapter 19 DLPs A200 to A299
DLP-A217 BLSR Exercise Ring Test
Step 4 Exercise the west port:
a. Right-click the west port of any BLSR node and choose Set West Protection Operation.
Figure 19-2 shows an example. (To move a graphic icon, press Ctrl while you drag and drop it to a
new location.)
Note For two-fiber BLSRs, the squares on the node icons represent the BLSR working and protect
channels. You can right-click either channel. For four-fiber BLSRs, the squares represent
ports. Right-click either working or protect ports.
Figure 19-2 Protection Operation on a Three-Node BLSR
b.
In the Set West Protection Operation dialog box, choose EXERCISE RING from the drop-down
list.
c. Click OK.
d. In the Confirm BLSR Operation dialog box, click Ye s.
On the network view graphic, an E appears on the working BLSR channel where you invoked the
protection switch. The E will appear for 10 to 15 seconds, then disappear.
Step 5 Exercise the east port:
a. Right-click the east port of any BLSR node and choose Set East Protection Operation.
Note For two-fiber BLSRs, the squares on the node icons represent the BLSR working and protect
channels. You can right-click either channel. For four-fiber BLSRs, the squares represent
ports. Right-click either working or protect ports.
b. In the Set East Protection Operation dialog box, choose EXERCISE RING from the drop-down list.
c. Click OK.
d. In the Confirm BLSR Operation dialog box, click Ye s.
On the network view graphic, an E appears on the BLSR channel where you invoked the exercise.
The E will appear for 10 to 15 seconds, then disappear.
Step 6 In the CTC window, click the History tab. Verify that an Exercising Ring Successfully
(EXERCISE-RING) condition appears for the node where you exercised the ring. Other conditions that
appear include EXERCISE-RING-REQ, KB-PASSTHR, and FE-EXERCISING-RING.
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