Abstract:
A port auto-negotiation method and a device are used for implementing port auto-negotiation between high-speed Ethernet devices. The method performed by a first device includes: configuring a first port of the first device as four subports, where each of the four subports includes a differential transceiver channel; determining from the four subports, at least one subport whose differential transceiver channel operates normally, and selecting some or all of the at least one subport as a normal subport; sending capability information of the first port to a second device by using the normal subport, and receiving, by using the normal subport, capability information of a second port of the second device; and determining operating statuses of the four subports based on the capability information of the first port and of the second port.
Abstract:
The application provides a network device, which includes: a main control board and a service board, where the main control board includes a processor and a switching chip, and the service board includes a physical layer component. The switching chip is connected to the physical layer component by using a system bus. The system bus consists of a SerDes link, and is configured to transmit service data and control information of a port of the physical layer component. The processor controls the port of the physical layer component by using the control information of the port of the physical layer component. The network device transmits the service data and the control information by using the system bus, so that the service board does not need to set a CPU processing the control information, thereby expanding an interface flexibly, and reducing device complexity and hardware costs.
Abstract:
Embodiments of the present disclosure provide a method and an apparatus for achieving energy saving of a data switching device. The apparatus acquires a working model, where the working model includes correspondence between a working mode and time within a working cycle of the data switching device, the working mode can identify a bandwidth capacity in the working mode, and controls a data processing module in the data switching device to work according to the working model, so that the data processing module works under a bandwidth capacity identified by a corresponding working mode at the time. In the technical solutions of the embodiments of the present disclosure, the power consumption of the data processing module in the data switching device can be reduced in the idle time period, thereby effectively achieving energy saving.
Abstract:
Embodiments of the present invention disclose a device information backup method, device, and system for information backup between a first device and a second device. The first device and the second device are directly connected through a cable, and the first device acquires, from the second device through the cable, information to be backed up and back up the information to be backed up. In this way, information backup can be completed quickly and simply, and shortcomings of a poor reliability and a poor security of a pluggable storage medium are avoided.