12-16
Cisco ONS 15454 Procedure Guide, R5.0
January 2005
Chapter 12 Upgrade Cards and Spans
NTP-A95 Upgrade OC-N Spans Manually
• Four-port OC-3 to eight-port OC-3
• Single-port OC-12 to four-port OC-12
• Single-port OC-12 to OC-48
• Single-port OC-12 to OC-192
• OC-48 to OC-192
Caution You cannot upgrade a four-port OC-12 span. If the ring contains any OC-12-4 cards and you need to
upgrade all the spans in the ring, you will need to downgrade the OC-12-4 card to a single-port OC-12
card (which is not possible unless only one port on the OC12-4 card is being used).
Step 2 Complete the “DLP-A60 Log into CTC” task on page 17-66. If you are already logged in, continue with
Step 3.
Step 3 According to local site practice, complete the “NTP-A108 Back Up the Database” procedure on
page 15-4.
Step 4 Ensure that no alarms or abnormal conditions (regardless of severity), including LOS, LOF, AIS-L, SF,
SD, and FORCED-REQ-RING are present. See the “DLP-A298 Check the Network for Alarms and
Conditions” task on page 19-63 for instructions.
Note During the upgrade/downgrade some minor alarms and conditions display and then clear
automatically. No service-affecting alarms (SA, Major, or Critical) should occur other than
BLSROSYNC, which will clear when the upgrade/downgrade of all nodes is complete. If any
other service-affecting alarms occur, Cisco recommends backing out of the procedure.
A four-node BLSR can take up to five minutes to clear all of the BLSROSYNC alarms. Allow
extra time for a large BLSR to clear all of the BLSROSYNC alarms. Refer to the Cisco ONS
15454 Troubleshooting Guide for information about alarms.
Step 5 Complete the appropriate task:
• DLP-A293 Perform a Manual Span Upgrade on a Two-Fiber BLSR, page 19-57
• DLP-A294 Perform a Manual Span Upgrade on a Four-Fiber BLSR, page 19-58
• DLP-A295 Perform a Manual Span Upgrade on a Path Protection, page 19-60
• DLP-A296 Perform a Manual Span Upgrade on a 1+1 Protection Group, page 19-61
• DLP-A297 Perform a Manual Span Upgrade on an Unprotected Span, page 19-62
Note The span upgrade process resets the line’s CV-L threshold to factory default. The CV-L threshold
is reset because the threshold is dependent on line rate.
Note The Span Upgrade option will only be visible and available if the hardware necessary for the
upgrade is present; for example, no upgrade is possible from an OC48 span unless XC10G cards
are installed in the nodes at both ends of the span.
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