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US 9,521,094 B2Granted
Network switch for power saving
AssigneeHon Hai Precision Industry Co., Ltd.
InventorChao-Ying Chiu
Life of this patent
Estimating the term…
Abstract
A network switch includes a plurality of physical layer (PHY) chips and a processor. Each of the PHY chips includes a plurality of network interfaces configured to connect to external network devices. The processor includes a port information (PI) table configured to record a working state of each PHY chip and to record used network interfaces of each PHY chip. When there are one or more PHY chips which network interfaces are all not used, the processor controls the one or more PHY chips to work in a sleep state.
Claims12
A network switch, comprising:
- a plurality of physical layer (PHY) chips, each of the plurality of PHY chips comprising a plurality of network interfaces configured to connect to external network devices;
- and
- a processor comprising a port information (PI) table configured to record a working state of the each of the plurality of the PHY chips and to record used network interfaces of the each of the plurality of the PHY chips, the processor detecting if there is one or more PHY chip having network interfaces that are all not used according to the PI table, and controlling the detected one or more PHY chip with network interfaces that are all not used to work in a sleep state;
- wherein when the each of the plurality of the PHY chips which have one or more network interface is used, the processor detects whether a number of the all not used network interfaces of the plurality of the PHY chips exceeds a predetermined value, and outputs a corresponding notification, when it is detected that the number of the all not used network interfaces of the plurality of the PHY chips exceeds a predetermined value.
1 more element
Dependencies are inferred from the claim text.