digital flow switch|minimax x4

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What is the difference between OpenFlow and Open vSwitch in SDN?

SDN stands for Software Control Network. The device that controls the network is the SDN controller, which is independent of the routers and switches in the network. The SDN controller communicates with other devices in the network to control them, such as writing routing tables. Other devices also report to the SDN controller, such as reporting the discovery of new network traffic. During this process, the communication protocol is OpenFlow, and the switch in the network supports this protocol. OpenVSwitch is a software (program component) that appears as a switch that supports the OpenFlow protocol in network simulation systems. OpenVSwitch is not hardware. Compared to physical switches that support OpenFlow, OpenVSwitch has these differences: the computing power (traffic throughput) of real-world switches is limited by hardware factors such as physical memory, processors, and bandwidth for Ethernet communication. OpenVSwitch is software that is controlled by the operating system during runtime. For some of the rough and empty protocol works of OpenFlow, their implementation details are not specified in the protocol standards, and the implementation details of OpenVSwitch may vary among different vendors.

2. The English word for "switch"

Switches have various expressions in English, depending on their application scenarios.

. The most basic expression is "switch", which can refer to an electrical switch, button, or switching device. For example, "electric switch" can be directly translated as "electric switch" or "electrical switch". In addition, there is an "on-off" switch, which refers to the state switching between "on" and digital flow switch

"off", commonly used to describe the control of household appliances or mechanical equipment. Stupid grip in specific technical fields, switches also have more professional terminology. For example, "main switch" or "power switch" can be translated as "main switch" or "power switch". And "on-off valve" or "switching tube" corresponds to "switching valve" or "switching tube". For situations where accurate flow control is required, "flow switches" or "on-off valves" can be used, which can be translated as "flow switches" or "valves". In cars or airplanes, in order to adjust the intensity of light, a "dimmer switch" is usually used, which is translated as "dim switch" or "dimmer control" in English. If it is necessary to disconnect the circuit, a "blocking switch" or "circuit breaker" can be used, which can be translated as "with a disconnecting switch" or "circuit breaker". In addition, there are some special types of switches. For example, the "foot switch" can be used for operating mechanical equipment, which is translated as "footswitch" in English. And "line selection switch" is a technology that controls equipment by selecting specific lines, corresponding to the English word "linear selection switch". In some mechanical devices, in order to achieve foot pedal control function, a "pedal switch" is used, which is translated as "foot pedal" in English. In audio devices, in order to achieve sound balance adjustment, a "equalizer switch" is used, which is translated as "equalizer switch" in English. These facilities play an indispensable role in their respective fields. In short, switches have a rich expression in English, depending on their application environment and technical requirements. Whether it is household appl

What is the difference between OpenFlow and Open vSwitch in SDN?

2. The English word for "switch"

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