Dell C9000 Line Cards Networking Configuration Guide for the C9000 Series Vers - Page 814

1. Ports with low priority are shut down first. 2. Ports with a high priority are shut down second. 3. Ports with a critical priority are shut down third. NOTE: When you configure the ports with the same priority levels, the port number determines which port has the highest priority (port 1 has the highest priority; port 48 has the lowest priority). The ports with the higher interface numbers for inline power disable first. The ports with the lower interface numbers have the highest priority. For example, if you configure ports 1, 2, 47, and 48 with a low priority and the inline power available becomes less, PoE is disabled on the ports in the following order: a. port 48 b. port 47 c. port 2 d. port 1 NOTE: Avoid allocating more power than necessary to a port because allocated power is made unavailable to other ports regardless of whether it is consumed when using the power inline max_milliwatts command. Typical IP phones use 3 to 10 Watts. The power inline command has the following parameters: • max_milliwatts - (OPTIONAL) Specify the maximum inline power that is allocated to a powered device connected to the interface. The range if from 440 to 30000 mW. When you do not configure a power value, the system uses the default value (30000 mW). NOTE: The max_milliwatts option only works when you use Static Management mode. When you enable Class mode, the max_milliwatts option has no effect on the interface. For information about Class Power Management mode, see Configuring Power Management Mode - Class and Static Mode. • priority - Enter the keyword priority to configure the powered device to connect to the interface. • critical - Enter the keyword critical to set the PoE priority level as critical. • high - Enter the keyword high to set the PoE priority level as high. • low - Enter the keyword low to set the PoE priority level as low. By default, all ports are set to low priority. • Configure the maximum power allocation and priority for the powered device connected to a port extender interface. Interface Mode power inline {[max_milliwatts] | priority {critical | high | low}} The following example sets the maximum allocated power to interface peGigE 255/0/1 3000 mW. Example of Setting the Maximum Allocated Power to an Interface Dell(conf)#interface peGigE ? PE-ID/UNIT/PORT PE Gigabit Ethernet interface number Dell(conf)#int peGigE 0/0/1 Dell(conf-if-pegi-255/0/1)#power inline ? Max milliwatts (default = 30000) priority Configure poe priority Dell(conf-if-pegi-0/0/1)#power inline 30000 Example of Setting the Priority to Critical 814 Power over Ethernet (PoE)