Dell Force10 S25N-S50N FTOS Configuration Guide FTOS 8.4.2.7 E-Series TeraScal - Page 787

Related Configuration Tasks • Manage Ports using Power Priority and the Power Budget on page 789 • Monitor the Power Budget on page 792 • Manage Power Priorities on page 792 • Recover from a Failed Power Supply on page 793 • Power Additional PoE Ports on the S-Series on page 794 Enabling PoE on a Port PoE is disabled by default. Enable PoE on a port from INTERFACE mode using the command power inline {auto [max_milliwatts] | static [max_milliwatts]}. • The power inline auto command allows the port to determine the amount of power that a connected Class 1-4 powered device requires, and supply it. See Table 36-1 on page 785. • The power inline static command without the qualifier guarantees 15.4W to the powered device. • You can limit the maximum amount of power (in milliwatts) available to a powered device with the command power inline auto max_milliwatts or with power inline static max_milliwatts • Disable PoE on a port using the no power inline command. Ports configured with power inline auto have a lower priority for access to power than those configured with power inline static. As a second layer of priority setting, use the [no] power inline priority command. Use the power inline static max_milliwatts command to avoid allocating more power than necessary to a port because allocated power is made unavailable to other ports regardless of whether it is consumed. Typical IP phones use 3-10 Watts. Figure 36-1. Enabling PoE R1(conf)# int range gi 0/1 R1(conf-if-gi-0/1)# power inline static R1(conf)# int range gi 1/1 R1(conf-if-gi-1/1)# power inline auto 1/1 0/1 1/0 R1(conf)# int range gi 1/0 R1(conf-if-gi-1/0)# power inline auto 4000 Power over Ethernet | 787