Cisco ONS 15310-MA SDH Procedure Manual page 244

Before You Begin
Optical card transmit and receive levels should be in their acceptable range as shown in the specifications
Note
for each card in
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.
Note If any of the cross-connect cards reboot during the span upgrade, you must reset each one when the span
upgrade procedure is complete for all the nodes in the ring.
Step 1 Determine the span upgrade you need to perform. Valid span upgrades include:
• STM-1 to STM-4
o STM-4 to STM-16
•
Complete the
Step 2
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
Conditions" task on page 17-56
Note
Complete the appropriate task:
Step 4
DLP-H292 Perform a Manual Span Upgrade on an SNCP, page 18-89
•
DLP-H293 Perform a Manual Span Upgrade on a 1+1 Protection Group, page 18-90
•
DLP-H294 Perform a Manual Span Upgrade on an Unprotected Span, page 18-91
•
Note
Note
Stop. You have completed this procedure.
Cisco ONS 15310-MA SDH Procedure Guide, Release 9.1 and Release 9.2
11-6
Table 1-2 on page
"DLP-H29 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. If any other
service-affecting alarms occur, Cisco recommends backing out of the procedure.
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 SDH topologies; for example, 1+1 protection group to a SNCP.
1-30.
16-43. If you are already logged in, continue with
the"DLP-H163 Check the Network for Alarms and
Chapter 11 Upgrade Cards and Spans
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