(ONS
15454 SDH only) Use the Provisioning subtab to view wavelength division multiplexing (WDM) parameters calculated by the ONS 15454 SDH DWDM automatic node setup (ANS) function. ANS is a TCC2/TCC2P function that adjusts values of the variable optical attenuators (VOAs) on the DWDM channel paths to equalize the per channel power at the amplifier input. This power equalization means that when the ONS 15454 SDH DWDM network is launched, all the channels have the same amplifier power level, independent from the input signal on the client interface and independent from the path crossed by the signal inside the node.
On the Provisioning subtab, you can view, edit, and export all ONS 15454
SDH DWDM parameters. You can also export the parameters to a text file, where they can be imported to other nodes, and you can import parameters that are stored in a text file. All parameters can be edited with CTC, either through the WDM-ANS > Provisioning tab or through the Provisioning tab in card view.
ONS 15454 SDH ANS parameters set the values required for the node to operate successfully.
Parameters include amplifier tilt, channel power, and working mode; add and drop input and output power; and within amplifier working mode, tilt, channel power, and OSC and channel LOS thresholds, as well as other values necessary for successful node operation within a particular DWDM metro core network. ANS parameters are calculated in one of two ways:
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Cisco Transport Planner calculates the ANS parameters based on the requirements for a planned network. Cisco Transport Planner can export the parameters to an ASCII NE Update file. You can use CTC to import the NE Update file to automatically provision the node for the network. |
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For standard DWDM networks, ANS parameters can be calculated without the Cisco Transport Planner NE Update file using the Calculate without Cisco Transport Planner function. This function calculates ANS input parameters automatically using input data coming from the far end nodes. |
ANS assumes that every DWDM port has a line direction parameter that is either Side A to Side B or
Side B to Side A. ANS automatically configures the mandatory optical connections according to following rules:
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Cards equipped in Slots 1 to 6 have a drop section facing Side A. |
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Cards equipped in Slots 12 to 17 have a drop section facing Side B for DWDM nodes in non-mesh networks. |
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Nodes in DWDM mesh networks have sides A, B, C, D, E, F, G, or H. |
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Metro-Core: Channels are equalized. |
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Metro-Access: Channels are not equalized (minimizes the number of amplifiers needed in the ring). |
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Not-DWDM: An SDH or hybrid network. |
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Displays the DWDM network components in a tree structure. Choosing a component displays its parameters and parameter values.
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Lists the DWDM parameters in a notational string form.
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Sets the value of the parameter. You can change the value using the drop-down list or typing in the field.
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Displays how the value was calculated:
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Automatic —Indicates that the value has been calculated using the Raman provisioning wizard. |
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Imported —Indicates that the value is set by Cisco Transport Planner XML file. |
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Provisioned —Indicates that the value was user provisioned. |
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If the Parameter value is "Unknown", the automatic calculation has failed. The Note field displays the failure reason.
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Applies any changes that were made to DWDM node parameters.
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Cancels changes and returns the fields to their last-saved settings.
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Displays context-sensitive help.
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