9-58
Cisco ONS 15454 DWDM Reference Manual, R8.5
78-18343-02
Chapter 9 Node Reference
9.6 Automatic Node Setup
• Target attenuation
• Target power
To allow you to modify ANS values based on your DWDM network requirements, provisioning
parameters are divided into two contributions:
• Reference Contribution—(Display only) This value is set by ANS.
• Calibration Contribution—This value can be set by the user.
To complete the equalization, ANS requires the following information:
• The order in which DWDM cards are connected together on the express paths.
• The number of channels that are add or dropped.
• The number of channels and/or bands that are configured as passthrough.
ANS assumes that every DWDM port is associated to one on the node side. The port-to-side association
is based on node layout deriving from provisioned (or automatically calculated) internal patchcords.
From CTC or TL1 you can:
• Calculate the default connections on the NE.
• Retrieve the list of existing connections.
• Retrieve the list of free ports.
• Create new connections or modify existing ones.
• Launch ANS.
After you launch ANS, one of the following statuses is provided for each ANS parameter:
• Success - Changed—The parameter setpoint was recalculated successfully.
• Success - Unchanged—The parameter setpoint did not need recalculation.
• Unchanged - Port in IS state—ANS could not modify the setpoint because the ports in an IS state.
• Not Applicable—The parameter setpoint does not apply to this node type.
• Fail - Out of Range—The calculated setpoint is outside the expected range.
• Fail - Missing Input Parameter—The parameter could not be calculated because the required
provisioning data is unknown or not available.
Optical patchcords are passive devices that are modeled by the two termination points, each with an
assigned slot and port. If user-provisioned optical patchcords exist, ANS checks that the new connection
is feasible (according to internal connection rules) and returns a denied message if the user connection
violates one of the rules. ANS requires the expected wavelength to be provisioned. When provisioning
the expected wavelength, the following rules apply:
• The card name is generically characterized by the card family, and not the particular wavelengths
supported (for example, AD-2C-xx.x for all two-channel OADMs).
• At the provisioning layer, you can provision a generic card for a specific slot using CTC or TL1.
• Wavelength assignment is done at the port level.
• An equipment mismatch alarm is raised when a mismatch between the identified and provisioned
value occurs. The default value for the provisioned attribute is AUTO.
ONS 15454 ANS parameters set the values required for the node to operate successfully.
Cisco TransportPlanner calculates the ANS parameters based on the requirements for a planned network.
Cisco TransportPlanner exports the parameters to an ASCII, NE Update file. The NE Update file can
To Next Page
Loading...
Need help?
General
