System software for managing power allocation to Ethernet ports in the absence of mutually exclusive detection and powering cycles in hardware
First Claim
1. A method comprising:
- pre-allocating a first configuration power to a first port of a switch, wherein the first configuration power defines a maximum power sourcing capacity of the first port;
determining that an available power pool of the switch is greater than the first configuration power;
thensubtracting the first configuration power from the available power pool of the switch;
thensupplying power from the available power pool to the first port and detecting whether a powered device is connected to the first port in a single indivisible operation.
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Accused Products
Abstract
A method of allocating power to ports in an Ethernet switch, including: (1) determining the available capacity of a power pool used to supply the ports, (2) assigning a configuration power to each of the ports, (3) selecting a port to be enabled, (4) determining whether the available capacity of the power pool exceeds the configuration power assigned to the selected port, and, if the available capacity of the power pool exceeds the configuration power assigned to the selected port, then (4) subtracting the configuration power assigned to the selected port from the available capacity of the power pool, (5) enabling and powering the selected port and simultaneously detecting whether the selected port is connected to a powered device, and (6) adding the configuration power assigned to the selected port to the available capacity of the power pool if the port is not connected to a powered device.
87 Citations
20 Claims
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1. A method comprising:
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pre-allocating a first configuration power to a first port of a switch, wherein the first configuration power defines a maximum power sourcing capacity of the first port; determining that an available power pool of the switch is greater than the first configuration power;
thensubtracting the first configuration power from the available power pool of the switch;
thensupplying power from the available power pool to the first port and detecting whether a powered device is connected to the first port in a single indivisible operation. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. A switch comprising:
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a first port; a processor configured to pre-allocate a first configuration power to the first port, wherein the first configuration power defines a maximum power sourcing capacity of the first port, the processor further configured to determine whether an available power pool of the switch is greater than the first configuration power and, if so, then subtract the first configuration power from the available power pool of the switch; and a port control circuit configured to supply power from the available power pool to the first port and detect whether a powered device is connected to the first port in a single indivisible operation. - View Dependent Claims (13, 14, 15, 16)
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17. A switch comprising:
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means for pre-allocating a first configuration power to a first port of a switch, wherein the first configuration power defines a maximum power sourcing capacity of the first port; means for determining that an available power pool of the switch is greater than the first configuration power; means for subtracting the first configuration power from the available power pool of the switch, after determining that the available power pool of the switch is greater than the first configuration power; means for supplying power from the available power pool to the first port and detecting whether a powered device is connected to the first port in a single indivisible operation, after subtracting the first configuration power from the available power pool. - View Dependent Claims (18, 19, 20)
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Specification