Ntp-B95 Upgrade Optical Spans Manually - Cisco ONS 15327 Procedure Manual
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Also See for ONS 15327:
- User documentation (559 pages) ,
- Manual (42 pages) ,
- Reference manual (166 pages)
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Chapter 11
Upgrade Cards and Spans
Note
Repeat Steps
Step 6
Note
Note
Note
Note
Stop. You have completed this procedure.
NTP-B95 Upgrade Optical Spans Manually
Purpose
Tools/Equipment
Prerequisite Procedures
Required/As Needed
Onsite/Remote
Security Level
Note
Optical card transmit and receive levels should be in their acceptable range as shown in the specifications
section for each card in the Cisco ONS 15327 Reference Manual.
March 2003
Remember to attach the fiber after installing the OC-N cards.
2
through
5
for additional spans in the ring.
Optical transmit and receive levels should be in their acceptable range as shown in the
specifications section for each card in the Cisco ONS 15327 Reference Manual.
The span upgrade process resets the line CV-L threshold to the 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.
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.
Extra time may be required to clear all of the Out of Sync alarms depending on the size of the
BLSR.
This procedure upgrades OC-N speeds within BLSRs, path protection,
and 1+1 protection groups by upgrading OC-N cards. Upgrading a span
is non-service affecting and will cause no more than three switches, each
of which is less than 50 ms in duration.
Replacement cards
The manual span upgrade procedure requires at least two technicians
(one at each end of the span) who can communicate with each other
during the upgrade.
As needed
Onsite
Provisioning or higher
NTP-B95 Upgrade Optical Spans Manually
Cisco ONS 15327 Procedure Guide, R4.0
11-5
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