RU190103U1 - Ethernet switch - Google Patents

Abstract

The utility model relates to data transmission systems, in particular, to a modular, scalable structure for building fast Ethernet switchboards accessing a common data distribution bus, and to the method of frame distribution on an Ethernet network in the store-and-forward mode (store- and-forward) .1. Ethernet switch containing control processor, switching module connected to the control processor bus, N queuing buffers, the first outputs of which are connected to the corresponding inputs of the switching module, and the second inputs are connected to the control processor by the bus, N ports whose first inputs are connected to the corresponding the outputs of the control processor, the second inputs are connected to the corresponding outputs of the switching module, and the outputs are connected to the first inputs of buffers for queuing, a block of MAC addresses and port numbers connected bus with processor control; a power supply unit, characterized in that a transponder is additionally inserted in it, as part of a microcontroller, of the first information input / output port, the first input / output of which is connected to the first input / output of the control processor, and the output via the address and data bus with the microcontroller; dust sensor, display unit, read-only memory (ROM), random access memory (RAM) are connected to the microcontroller via the address and data bus; Ethernet module, the first input / output of which is connected to the microcontroller via the address and data bus, and the second input / output to the input / output of the IP network; 2. The device according to claim 1, characterized in that all its elements are made using digital technology.

Description

The utility model relates to data transmission systems, in particular, to a modular, scalable structure for building fast Ethernet switchboards accessing a common data distribution bus, and to the method of frame distribution on an Ethernet network in the store-and-forward mode (store- and-forward).

The closest technical solution is the device described in http://www.fiberman.ru/articles/fast-gigabit-ethemet/ethemet/switch/ - the prototype.

This switch contains a control processor, a switching module connected to the control processor bus, N queue buffers, the first outputs of which are connected to the corresponding inputs of the switching module, and the second inputs are connected to the control processor by the bus, N ports whose first inputs are connected to the corresponding outputs control processor, the second inputs are connected to the corresponding outputs of the switching module, and the outputs - with the first inputs of buffers for queuing, a block of MAC addresses and port numbers, connected with a control processor; Power Supply.

The purpose of the utility model is to notify the switch Ethernet signal of the critical dustiness.

This goal is achieved by the fact that the device containing the control processor, the switching module connected to the control processor bus, N buffers for queuing, the first outputs of which are connected to the corresponding inputs of the switching module, and the second inputs are connected to the control processor bus, N ports, the first inputs of which are connected to the corresponding outputs of the monitoring processor, the second inputs are connected to the corresponding outputs of the switching module, and the outputs to the first inputs of buffers for queuing, MAC block addresses and port numbers associated with the control processor bus; the power supply unit, additionally entered a transponder, as part of the microcontroller, the first information input / output port, the first input / output of which is connected to the first input / output of the control processor, and the output - via the address and data bus with the microcontroller; dust sensor, display unit, read-only memory (ROM), random access memory (RAM) are connected to the microcontroller via the address and data bus; Ethernet module, the first input / output of which is connected to the microcontroller via the address and data bus, and the second input / output to the input / output of the IP network.

Comparison with the prototype shows that the proposed device is characterized by the presence of new units and their connections between them. Thus, the proposed device meets the criterion of "novelty."

Comparison of the proposed solution with other technical solutions shows that the listed elements used in the blocks are known, but their introduction in this connection with the rest of the elements leads to the solution of a new task of monitoring the status of the switch informing about the need for timely maintenance of the device if the dust threshold is exceeded security This confirms the compliance of the technical solution with the criterion of "significant differences".

FIG. 1 shows the general block diagram of the proposed device, which consists of Ethernet switch (prototype) 1, transponder 2, data transmission medium (IP Network) 3.

FIG. 2 shows the selected prototype of the device, containing the control processor 1-1, the switching module 1-2, N buffers for queuing 1-3, N data input / output ports 1-4, table of MAC addresses and port numbers 1-5, power supply 1-6.

FIG. 3 shows the implementation of the transponder 2, containing the microcontroller 2-1, the first information input port 2-2, the display unit 2-4, Ethernet module 2-9, read-only memory (ROM) 2-6, random access memory (RAM) 2- 7, the second port input / output information 2-10, the address and data bus 2-5, dust sensor 2-3.

The device works as follows.

Switchboard - multiport bridge. The switch operates on the second link layer of the OSI model. The main purpose of the switch is to provide network unloading by localizing traffic within individual segments.

The key element of the switch is non-blocking architecture, which allows multiple Ethernet connections to be established between different pairs of ports at the same time, and no frames are lost during the switching process. Traffic itself between interacting network devices remains localized. Localization is carried out using address tables that establish the connection of each port with the addresses of network devices belonging to a segment of this port; FIG. 2

RJ-45 ports of switches usually make MDI-X type. Modern switches have many additional features, including: filtering by MAC addresses, building virtual networks, flow control, autoconfiguration of the 10Base-T / 100Base-TX port, support for full duplex transmission .

The microcontroller 2-1 is an LSI of INTEL 80С51 family with a clock frequency of 12-14 MHz.

The read-only memory (ROM) 2-6 is intended for storing the data memory and commands for the microcontroller 2-1, and is a standard 64-kb LSI INTEL 27C512 family.

Random access memory (RAM) 2-7 is designed to store information related to the mode of operation of the system. The RAM is connected to the system bus of the address and data 2-5 and is a standard BIS of the INTEL 6264 family with a capacity of 8 KB.

Information input / output blocks 2-2, 2-10 are designed to organize 8-bit input / output ports of logic level signals. They are connected to the system bus 2-5 and is a parallel bit register.

Dust sensor 2-3 is designed to inform about the need for timely maintenance of the device, as well as to prevent failure of components. Dust sensor software 2-3 performs cyclical polling and displays the level of dust on a conventional scale, it has the ability to generate and automatically send notifications about the signal of the sensor’s critical dustiness.

Thus, the considered technical solution allows remote monitoring of the main parameters of the Ethernet switch and ensuring that the entire device is dustproof, with notification of the critical dust signal of the dust sensor.

Claims (2)

1. Ethernet switch containing control processor, switching module connected to the control processor bus, N queue buffers, the first outputs of which are connected to the corresponding inputs of the switching module, and the second inputs are connected to the control processor bus, N ports, the first inputs of which are connected with the corresponding outputs of the monitoring processor, the second inputs are connected to the corresponding outputs of the switching module, and the outputs - with the first inputs of buffers for queuing, the block of MAC addresses and port numbers, connected th bus with processor control; a power supply unit, characterized in that a transponder is additionally inserted in it, as part of a microcontroller, of the first information input / output port, the first input / output of which is connected to the first input / output of the control processor, and the output via the address and data bus with the microcontroller; dust sensor, display unit, read-only memory (ROM), random access memory (RAM) are connected to the microcontroller via the address and data bus; Ethernet module, the first input / output of which is connected to the microcontroller via the address and data bus, and the second input / output to the input / output of the IP network. 2. The device according to p. 1, characterized in that all its elements are made using digital technology.

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