Dlp-B295 Perform A Manual Span Upgrade On A Path Protection - Cisco ONS 15327 Procedure Manual

NTP-B95 Upgrade Optical Spans Manually
Install the new OC-N cards in both endpoints before attaching the fiber to the newly installed OC-N
Step 9
cards. Check that the receive signal falls within the acceptable range. Wait for the IMPROPRMVL alarm
to clear and the cards to become active.
When cards in both endpoint nodes have been successfully upgraded and all facility alarms (LOS, SD or
Step 10
SF) are cleared, complete the
endpoints.
The Force switch clears and traffic is running. If you have lost traffic, make sure the cabling is installed
properly. See the
the problem, perform a downgrade. The procedure for downgrading is the same as upgrading except that
you choose a lower-rate card in Step
Repeat this task for each span in the BLSR. When you are done with each span, the upgrade is complete.
Step 11
Return to your originating procedure (NTP).
Step 12

DLP-B295 Perform a Manual Span Upgrade on a Path Protection

Purpose
Tools/Equipment
Prerequisite Procedures
Required/As Needed
Onsite/Remote
Security Level
Warning Do not reach into a vacant slot or chassis while you install or remove a module or a fan. Exposed
circuitry could constitute an energy hazard.
Caution Do not perform any other maintenance operations or add any circuits during a span upgrade.
Note If any of the XTC cards reboot during the span upgrade, you must manually reset each one, once the span
upgrade procedure is complete for all the nodes in the ring. See the
CTC" procedure on page 14-23
Step 1 Ensure that no alarms or abnormal conditions (regardless of severity), including LOS, LOF, AIS-L, SF,
SD, and FORCED-REQ-RING are present on the span that you will upgrade. See the
the Network for Alarms and Conditions" task on page 12-3
Complete the
Step 2
you will upgrade at both endpoints.
Remove the fiber from both endpoint nodes in the span and ensure that traffic is still running.
Step 3
Cisco ONS 15327 Procedure Guide, R4.0
11-8
"DLP-B194 Clear a BLSR Force Ring Switch" task on page 13-8
"NTP-B221 Install Optical Cables" procedure on page
6 and install a lower-rate card in Step 9.
This task upgrades path protection spans to a higher optical speed.
Repeat the task to upgrade each span, and thus the entire ring, to the
higher optical rate.
Higher-rate cards
Compatible hardware necessary for the upgrade
DLP-B60 Log into CTC, page 2-23
As needed
Onsite
Provisioning or higher
for card reset procedures.
"DLP-B197 Initiate a Path Protection Force Switch" task on page 13-16
Chapter 11 Upgrade Cards and Spans
1-40. If this does not resolve
"NTP-B113 Reset the XTC Using
"DLP-B298 Check
for instructions.
at both
on the span that
March 2003