After upgrading the PoE firmware to 6.2.0.8.0 on EX4000 platforms, IEEE-compliant Powered Devices are incorrectly reported as "Legacy PD Detected" in the show poe interface output.

The issue is limited to the CLI display and does not affect power delivery, device operation, or PoE negotiation.

On previous PoE firmware versions (for example, 6.0.0.12.0), the same devices are correctly identified as IEEE-compliant PDs.

IEEE compliant PDs are incorrectly displayed as Legacy PDs in PoE CLI output.

Example:

root@device> show poe interface ge-X/X/X 
PoE interface status:
PoE interface                : ge-X/X/X
Administrative status        : Enabled
Operational status           :   ON
Operational status detail    : Legacy PD Detected 
FourPair status              : Disabled
Power limit on the interface : 15.4W
Priority                     : Low
Power consumed               : 4.1W
Class of power device        : 3

The fix is awaited as part of PR-1959172

Kindly do not upgrade the PoE firmware from 6.0.0.12.0 to 6.2.0.8.0 until the fixed version is available 

V1

https://gnats.juniper.net/web/default/1959172#external_tab