Cisco Cisco ONS 15454 M2 Multiservice Transport Platform (MSTP)
Procedure
Step 1
Before you modify the CD value of the TDC-CC or TDC-FC card, run the APC. To run the APC, complete the “DLP-G430
Run Automatic Power Control” task in the
Run Automatic Power Control” task in the
document.
Step 2
Modify the CD value for the TDC-CC or TDC-FC Card. To modify the CD value, Complete the “DLP-G545 Modify the
Chromatic Dispersion Value for the TDC-CC and TDC-FC Cards” task in the chapter “Change DWDM Card Settings” of
the Cisco ONS 15454 DWDM Network Configuration Guide.
Chromatic Dispersion Value for the TDC-CC and TDC-FC Cards” task in the chapter “Change DWDM Card Settings” of
the Cisco ONS 15454 DWDM Network Configuration Guide.
Do not change the compensation value directly in one instance. In order to avoid traffic drops and alarms, it is
required to change the CD value in steps not too large. For example, if you want to change the CD value of a
TDC-CC from -880 to -1320 ps/nm, do not change the CD value in a single step, but in a couple of steps. Change
the CD value to an intermediate value of -1100 ps/nm and then to -1320 ps/nm. Change the CD value of the
TDC-CC by steps no larger than 330 ps/nm and the CD value of the TDC-FC by steps no larger than 270 ps/nm.
This approach of changing the CD value avoids misleading alarms and traffic drops.
required to change the CD value in steps not too large. For example, if you want to change the CD value of a
TDC-CC from -880 to -1320 ps/nm, do not change the CD value in a single step, but in a couple of steps. Change
the CD value to an intermediate value of -1100 ps/nm and then to -1320 ps/nm. Change the CD value of the
TDC-CC by steps no larger than 330 ps/nm and the CD value of the TDC-FC by steps no larger than 270 ps/nm.
This approach of changing the CD value avoids misleading alarms and traffic drops.
Note
Step 3
Run the APC. To run the APC, complete the “DLP-G430 Run Automatic Power Control” task in the
document.
Step 4
If the APC correction skipped alarm appears, then force the APC correction. Do the following:
a) Click the alarmed port.
b) Click the Maintenance tab.
c) Click the Force APC correction button.
b) Click the Maintenance tab.
c) Click the Force APC correction button.
Step 5
Repeat
Step 2, on page 37
and
Step 4, on page 37
until the CD target value is set.
Step 6
Return to your originating procedure (NTP).
Additional References
Related Documents
Use this document in conjunction with the other release-specific documentation listed in this table:
Description
Link
Provides quick access to publications of Cisco ONS releases.
Cisco ONS Documentation Roadmap
Provides background and reference material and procedures for
installation and configuration of control cards and node configuration
on Cisco ONS 15454 dense wavelength division multiplexing
(DWDM) systems.
installation and configuration of control cards and node configuration
on Cisco ONS 15454 dense wavelength division multiplexing
(DWDM) systems.
Cisco ONS 15454 DWDM Control Card and Node
Configuration Guide
Configuration Guide
Provides background and reference material and procedures for
installation and configuration of line cards on Cisco ONS 15454
dense wavelength division multiplexing (DWDM) systems.
installation and configuration of line cards on Cisco ONS 15454
dense wavelength division multiplexing (DWDM) systems.
Cisco ONS 15454 DWDM Line Card Configuration
Guide
Guide
Provides background and reference material, procedures for turn up,
provisioning, and maintenance of Cisco ONS 15454 dense wavelength
division multiplexing (DWDM) systems.
provisioning, and maintenance of Cisco ONS 15454 dense wavelength
division multiplexing (DWDM) systems.
Cisco ONS 15454 DWDM Network Configuration Guide
37