Cisco ONS 15327 Procedure Manual page 372

NTP-B95 Upgrade Optical Spans Manually
In this context the word "span" represents the optical path between two nodes. The words "span
Note
endpoint" represent the nodes on each end of a span.
If any of the XTC cards reboot during the span upgrade, you must manually reset each one when the span
Note
upgrade procedure is complete for all the nodes in the ring. See the
CTC" procedure on page 14-23
Determine the type of span you need to upgrade and make sure you have the necessary cards. Valid span
Step 1
upgrades include:
OC-12 to OC-48
•
OC-12 IR to OC-12 LR
•
OC-48 IR to OC-48 LR
•
Complete the
Step 2
already logged in, continue with Step 3.
Ensure that no alarms or abnormal conditions (regardless of severity), including LOS, LOF, AIS-L, SF,
Step 3
SD, and FORCED-REQ-RING are present. See the
Conditions" task on page 12-3
Note
Complete a manual upgrade task if you need to perform error recovery for the Span Upgrade Wizard or
Step 4
back out of a span upgrade (downgrade):
Complete the
•
page 11-7
Complete the
•
to upgrade an optical span manually within a path protection.
• Complete the
page 11-9
• Complete the
page 11-11
Note
Note
Cisco ONS 15327 Procedure Guide, R4.0
11-6
for card reset procedures.
"DLP-B60 Log into CTC" task on page
for instructions.
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
BLSR Out-of-Sync, 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.
Allow extra time for a large BLSR to clear all of the Out-of-Sync alarms.
"DLP-B293 Perform a Manual Span Upgrade on a Two-Fiber BLSR" task on
to upgrade an optical span manually within a two-fiber BLSR.
"DLP-B295 Perform a Manual Span Upgrade on a Path Protection" task on page 11-8
"DLP-B296 Perform a Manual Span Upgrade on a 1+1 Protection Group" task on
to upgrade an optical span manually within a 1+1 protection group.
"DLP-B297 Perform a Manual Span Upgrade on an Unprotected Span" task on
to upgrade an unprotected optical span manually.
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.
Span upgrades do not upgrade SONET topologies; for example, 1+1 protection group to a
two-fiber BLSR.
Chapter 11
"NTP-B113 Reset the XTC Using
2-23. The node (default) view appears. If you are
"DLP-B298 Check the Network for Alarms and
Upgrade Cards and Spans
March 2003