Summary of PoE Features
  
    The ExtremeXOS implementation of PoE supports
      the following features:
    
      - Configuration and control of the power distribution for PoE at the
        system, slot, and port levels
 
      - Real-time discovery and classification of IEEE 802.3af-compliant PDs
        and many legacy devices
 
      - Support for IEEE 802.3at-compliant PDs on PoE+ devices
 
      - Support for IEEE 802.3bt
        compliant PDs on PoE++ devices
 
      - Monitor and control of port PoE fault conditions including exceeding
        configured class limits and power limits and short-circuit detection
 
      - Support for configuring and monitoring PoE status at the system, slot,
        and port levels
 
      - Management of an over-subscribed power budget
 
      - Port LED control for indicating the link state
 
      - Support for hitless failover in a SummitStack with a master and backup
        node. 
        
      
 
      - (Fast PoE) Ability to provide
        PoE power when the switch is powered on without waiting for boot up based on last saved PoE
        state (ExtremeSwitching
        X435;
         and X465 (per port) series switches only).
 
      - (Perpetual PoE) Preserve PoE
        power delivery to devices during reboot (ExtremeSwitching X465 and X435 series switches only).