Cisco ONS 15454 SDH - NTP- D211 Convert a Two-Fiber MS-Spring to a Four-Fiber MS-Spring Automatically

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Cisco ONS 15454 SDH Procedure Guide, R7.0
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Chapter 13 Convert Network Configurations
NTP- D211 Convert a Two-Fiber MS-SPRing to a Four-Fiber MS-SPRing Automatically
Note If you use source and drop cards that are already carrying traffic to upgrade a two-fiber MS-SPRing to
a four-fiber MS-SPRing, the APSC-IMP alarms will generate and remain outstanding.
Step 1 Complete the “DLP-D60 Log into CTC” task on page 17-49 at one of the two-fiber nodes that you want
to convert.
Step 2 Complete the “DLP-D298 Check the Network for Alarms and Conditions” task on page 19-83.
Step 3 Complete the “NTP-D16 Install STM-N Cards and Connectors” procedure on page 2-7 to install two
STM-16 or STM-64 cards at each MS-SPRing node. You must install the same STM-N card rate as the
two-fiber MS-SPRing.
Step 4 Connect the fiber to the new cards. Use the same east-west connection scheme that was used to create
the two-fiber connections. See the “DLP-D338 Install Fiber-Optic Cables for MS-SPRing
Configurations” task on page 20-37.
Step 5 Complete the “DLP-D214 Change the Service State for a Port” task on page 19-10 to put the ports in the
Unlocked-enabled service state on each new STM-N card.
Step 6 Test the new fiber connections using procedures standard for your site.
Step 7 Convert the MS-SPRing:
a. From the View menu, choose Go to Network View. Click the Provisioning > MS-SPRing tabs.
b. Choose the two-fiber MS-SPRing you want to convert, then click the Upgrade to 4 Fiber button.
c. In the Upgrade MS-SPRing dialog box, set the amount of time that will pass before the traffic reverts
to the original working path after the condition that caused the switch has been resolved. The default
is 5 minutes.
d. Click Next.
e. Assign the east and west protection ports:
• West Protect—Select the west MS-SPRing port that will connect to the west protect fiber from
the drop-down list.
• East Protect—Select the east MS-SPRing port that will connect to the east protect fiber from
the drop-down list.
f. Click Finish.
Step 8 Click the Alarms tab.
a. Verify that the alarm filter is not on. See the “DLP-D227 Disable Alarm Filtering” task on
page 19-25 as necessary.
b. Verify that no unexplained alarms appear on the network. If alarms appear, investigate and resolve
them before continuing. Refer to the Cisco ONS 15454 SDH Troubleshooting Guide for procedures.
Step 9 Complete the “NTP-D342 Four-Fiber MS-SPRing Acceptance Test” procedure on page 5-16.
Stop. You have completed this procedure.