[TRNSPRTPCE-452] PCE wrongly picks fixed grid mode instead of flex grid Created: 10/May/21  Updated: 13/Oct/21  Resolved: 29/Jun/21

Status: Verified
Project: transportpce
Component/s: None
Affects Version/s: None
Fix Version/s: Phosphorus

Type: Bug Priority: Highest
Reporter: Balagangadhar Bathula Assignee: Balagangadhar Bathula
Resolution: Done Votes: 0
Labels: None
Remaining Estimate: 0 minutes
Time Spent: 1 week, 1 day
Original Estimate: Not Specified

Priority: Highest

 Description   

Currently the PCE Algorithm validator assigns spectrum/wavelength, precision for frequency based on whether the slot-width-granularity of the device. If it is 50 GHz, then it assumes as fixed grid.

Currently port-mapping does not support mc-capabilities for XPDR node (only supports for RDM). If the first node in the PCE path is XPDR, then it uses default values to set slot-width-granularity as 50 GHz, which causes the mode as fixed grid.

Actions needed:

  • Change the port-mapping to include mc-capabilities for XPDR (7.1) devices.
  • Update the spectrum assignment code to check both slot-width-granularity and central-granularity to decide fixed vs flex grid mode.
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