Power over Ethernet | 793You can augment the default prioritization using the command [no] power inline priority {critical | high |low}, where critical is the highest priority, and low is the lowest. FTOS ignores any LLDP-MED priority onthis port if you configure a priority with this command. If you do not configure a port priority with thiscommand, FTOS honors any LLDP-MED priority.In general, priority is assigned in this order:1. power inline [static | auto] setting: power inline static ports have a higher priority than power inline autoports2. power inline priority {critical | high | low} setting or LLDP-MED TLV, if power inline priority is notconfigured3. slot ID4. port IDRecover from a Failed Power SupplyIf ports are PoE-enabled, and a PSU fails, power might be terminated on some ports to compensate for thepower loss. This does not affect PoE individual port configurations.For C-Series, use the show power supply command to display PSU status (Figure 36-4).For S-Series, see the Power over Ethernet (PoE) chapter in the FTOS Command Reference for the S-Seriesfor an example of the output of the show power inline output and its field descriptions.Figure 36-4. show power supply Command ExampleIf power must be terminated for some ports, the order in which ports are affected is based on priority. Portswith the lowest priority are terminated first (see Manage Power Priorities on page 792).R1#show power supplyPower ModelSupply Number Type Status------------------------------------------------PS0 -- -- AbsentPS1 CC-C300-PWR-AC AC ActivePS2 CC-C300-PWR-AC AC FailPS3 CC-C300-PWR-AC AC Remote OffPS4 -- -- AbsentPS5 -- -- AbsentPS6 -- -- AbsentPS7 -- -- Absent
