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https://bugs.launchpad.net/bugs/1929185

Title:
  [21.10 FEAT] RoCE: Predictable Interface Names (kernel)

Status in Ubuntu on IBM z Systems:
  Fix Released
Status in linux package in Ubuntu:
  Fix Released

Bug description:
  Feature Description:  
  - Interface names for RoCE Express adapters are currently very hard to 
predict, causing problems with the installer which requires knowledge of the 
interface name
  - Interface names can change between re-boots, invalidating any previously 
stored network card configuration
  To fix this requires changes in the Linux kernel to indicate whether UIDs are 
unique (and therefore usable), and in systemd to generate an interface name 
based on UIDs all the time.

  Business Case:        
  Increase usability, lower service efforts.

  Available with kernel 5.13

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