Dell Force10 S55T S55 Configuration Guide FTOS 8.3.5.3 - Page 520

www.dell.com | support.dell.com Recover from a Failed Power Supply If ports are PoE-enabled, and a PSU fails, power might be terminated on some ports to compensate for the power loss. This does not affect PoE individual port configurations. For C-Series, use the show power supply command to display PSU status (Figure 27-4). For S-Series, see the Power over Ethernet (PoE) chapter in the FTOS Command Reference for the S-Series for an example of the output of the show power inline output and its field descriptions. Figure 27-4. show power supply Command Example R1#show power supply Power Model Supply Number Type Status PS0 -- -- Absent PS1 CC-C300-PWR-AC AC Active PS2 CC-C300-PWR-AC AC Fail PS3 CC-C300-PWR-AC AC Remote Off PS4 -- -- Absent PS5 -- -- Absent PS6 -- -- Absent PS7 -- -- Absent If power must be terminated for some ports, the order in which ports are affected is based on priority. Ports with the lowest priority are terminated first (see Manage Power Priorities on page 519). Figure 27-5. Order of PoE Termination 0 1 2 Terminate PoE For the configuration in Figure 27-2: • Power for ports 7/1 and 7/2 is terminated first because it is configured with inline power auto. • Power for port 7/2 is terminated before PoE for port 7/1 because port 7/1 has a lower port number. • Power for port 7/0 is terminated last because it is configured with inline power static. When a failed PSU is replaced and there is sufficient power for PoE, power is automatically re-supplied for previously configured PoE ports, and power is supplied first to ports with the highest priority. 520 | Power over Ethernet