RU230949U1 - SWITCH BS7600-48Y8C - Google Patents

Abstract

The utility model relates to the field of Ethernet switches. The technical result is to ensure efficient and fault-tolerant operation of the Ethernet switch. The Ethernet switch comprises: a printed circuit board which carries: a built-in service control processor; ports, wherein the main module is connected to the central processor module; four cooling modules, wherein each cooling module contains two fans for cooling the elements of the Ethernet switch; a fan control module connected to the service controller and configured to control the fans and distribute power between the four cooling modules, as well as to generate pulse-width modulation signals and read tachometer readings from each cooling module based on commands from the service control processor; a central processor module of the Ethernet switch; two redundant power supplies. 1 fig.

Description

AREA OF TECHNOLOGY

The utility model relates to the field of computing and telecommunications technology, in particular to an Ethernet switch.

LEVEL OF TECHNOLOGY

The closest analogue is the information source RU187641U1, published on 14.03.2019, which discloses an Ethernet switch comprising a control processor, a switching module connected via a bus to the control processor, N buffers for organizing a queue, the first outputs of which are connected to the corresponding inputs of the switching module, and the second inputs are connected via a bus to the control processor, N ports, the second inputs of which are connected to the corresponding outputs of the switching module, and the outputs are connected to the first inputs of the buffers for organizing a queue, a MAC address and port number block connected via a bus to the control processor, a first power supply unit, a second power supply unit, a peripheral controller, the first input/output of which is connected to the input/output of the first and second power supplies, as well as to the first input/output of the control processor, the second input/output is connected to the USB port, and the third input/output is connected to the first inputs/outputs of the N ports.

The proposed technical solution is aimed at eliminating the shortcomings of the current level of technology and differs from previously known ones in that the proposed technical solution ensures efficient and fault-tolerant operation.

DISCLOSURE OF UTILITY MODEL

The objective of the declared utility model is to develop an Ethernet switch.

The technical result of the claimed utility model is to ensure efficient and fault-tolerant operation of an Ethernet switch.

The claimed technical result is achieved by means of an Ethernet switch comprising: a printed circuit board which carries: an integrated service control processor; 48 25G SFP28 ports, 8 100G QSFP28 ports, a 1G management port, wherein the main module is connected to the central processor module via a PCIex2 bus; four cooling modules, wherein each cooling module contains two fans for cooling the Ethernet switch elements; a fan control module connected to the service control processor via an I2C bus and a general-purpose input/output line and configured to control the fans and distribute power between the four cooling modules, as well as to generate pulse-width modulation signals and read tachometer readings from each cooling module based on commands from the service control processor; an indication module containing four light-emitting diodes and located on the front panel of the Ethernet switch to display the status of system signals and indicate the state of the Ethernet switch, wherein the indication module contains a hardware reset button for the switch; the central processor module of the Ethernet switch; an input/output module, which is implemented on the rear panel of the Ethernet switch and contains: a management port, USB and a serial console port; two redundant power supplies based on the CRPS 2.0 standard, with each power supply providing a total power of up to 550 W, while all elements of the Ethernet switch are interconnected and located inside the case.

BRIEF DESCRIPTION OF DRAWINGS

The utility model will be more understandable from a description that is not restrictive and is provided with references to the attached drawings.

Fig. 1 illustrates the general diagram of an Ethernet switch.

IMPLEMENTATION OF A UTILITY MODEL

In the detailed description of the implementation of the utility model given below, numerous implementation details are provided, intended to provide a clear understanding of the present utility model. However, it will be obvious to a person skilled in the subject matter how the present utility model can be used, both with and without these implementation details. In other cases, well-known methods, procedures and components have not been described in detail, so as not to unnecessarily complicate the understanding of the features of the present utility model.

In addition, it will be clear from the above presentation that the utility model is not limited to the given implementation. Numerous possible modifications, changes, variations and replacements, preserving the essence and form of the present utility model, will be obvious to specialists qualified in the subject area.

This technical solution is implemented as a single device, namely an Ethernet switch. The declared Ethernet switch provides the ability to connect 10G/25G/40G/100G.

This technical solution supports 48 SFP28 ports and 8 QSFP28 ports for network connection, 1G management port, USB and serial console port.

The claimed Ethernet switch is a PHY-less design, in which the network interface connections are directly connected to the Serdes interfaces of the Broadcom 56870 switching chip, providing minimal latency.

The declared Ethernet switch contains the following elements.

Printed circuit board (Main board). The printed circuit board carries 48 25G SFP28 ports, 8 100G QSFP28 ports, 1G management port, USB and serial console port. It is based on ASIC BCM56870, with a maximum throughput of 3.2T. The printed circuit board is connected to the central processor (CP) module via PCIex2 bus.

The PCB uses 12VDC and 5VDC from a hot-swappable power module. The built-in DC/DC sources are used to generate 3.3V/1.8V/1.2V 0.8V/1.0V from 12VDC. Each DC/DC is monitored to provide emergency power-off if the DC/DC voltage level deviates from the monitored threshold. The system power-up sequence starts from high voltage to low voltage.

The MCPU controller is responsible for controlling the main board and peripheral devices. It is an integrated service processor for managing all system modules. It is capable of managing and monitoring various aspects of the device at the hardware level. The MCPU monitors hardware parameters such as temperature, voltage, fans, and sensors. It is responsible for the sequence of switching on the integrated DC/DC. The MCPU monitors and controls the SMB, I2C buses, as well as the discrete GPIO input/output channels.

Cooling modules. The declared device contains four cooling modules, and each cooling module contains two fans for cooling the Ethernet switch elements. The cooling modules provide the direction of air flow "front to back".

Fan control module (Fan board).

The fan control module is connected to the MCPU via the I2C bus and the GPIO line. The main functions of the fan control module are power distribution to 4 cooling modules, as well as the generation of PWM signals and reading of tachometer readings from each cooling module using commands from the MCPU. The control module provides the ability to "hot" replace cooling modules.

Indication module. The module is used to indicate the status of the main system signals on the front panel of the device. The hardware reset button for the device is also located on the indication module.

Power Module.

The device uses two redundant power supplies based on the CRPS 2.0 standard. Each power supply provides a total power of up to 550 W and supports PMbus functions, which allows it to exchange data with the main module. The power supply module complies with safety and electromagnetic compatibility standards.

High-speed SerDes signals from the QSFP+ ports are fed to the SerDes interfaces of the ASIC switching chip (BCM56870), which in turn transmits a sequence of LED0, LED1 signals to the shift registers that control the port status indicators.

The MCPU monitors and controls transceivers connected to the QSFP+ ports via the I2C address bus. The I2C bus switch (PCA9548) switches the I2C bus to the device whose address is being addressed. The GPIO signal buffer (PCA9575) serves to combine information from the general-purpose input/output lines coming from the QSFP+ ports into the I2C bus.

The central processor module (Control Plane) is implemented in the COM Express Compact form factor, on which the operating system and software are deployed, under the control of which traffic management is carried out; it is connected to the ASIC via the PCIex2 bus, and to the MCPU via the USB bus.

The serial console port (Console RJ45) is used to output service and diagnostic information from the Control Plane and MCPU.

Central Processing Unit (Control Plane).

Portwell PCOM-B641-E3950 - Basic Type 6 COM Express processor module.

Pre-installed processor type - Intel Atom x7-E3950

Processor frequency - 1.6 GHz

Chipset type - Intel Atom SoC

RAM type - DDR3L 1600

Number of slots for RAM modules - 2xSODIMM 204pin

Max supported RAM -16GB

Form factor - COM Express Compact

System bus - COM Express

Disk controllers

SATA III channels - 2

Input - output interfaces

Number of USB ports-11

USB v2.0 ports - 8

USB v3.0 ports-3

Network interfaces

Ethernet-Intel i219-LM Controller

Ports 10/100/1000 Mbps-1

Video adapter

Video controller - Built into the processor

Interfaces - DisplayPort, LVDS, VGA

Expansion slots

PCI Express x14 slots

The declared technical solution ensures efficient and fault-tolerant operation due to the above-mentioned elements and connections between them. All elements of the device are interconnected and rigidly fixed in the body.

The managed Ethernet aggregation switch features a design, large routing table size, high performance and ease of operation. The switch fully meets the requirements of high-speed, secure and intelligently managed enterprise networks.

Below is a basic example of the declared device operation. 220 V power is supplied via two connectors on the rear panel, for each power supply unit (PSU). Two PSUs are needed for redundancy with the hot-swappable function. The PSU has a standby voltage of 5 V, it is converted on the main board using DC-DC to 3.3 V. MCPU starts, it checks for the presence of the PSU, reads the necessary data via the SMBus bus. If the check is successful, MCPU starts 12 V, checks the power supply system and turns on all other power modules and the necessary control signals to start the ASIC BCM56170. After a successful start, it goes into SLASH mode and transfers control to the central processor module. Further in the cycle, it polls the PSU, DC-DC modules, temperature sensors, controls the fan speed, and also configures the SFP modules via the I2C bus. The central processor module is engaged in the transmission and processing of information.

The present application materials present a preferred disclosure of the implementation of the claimed technical solution, which should not be used as limiting other, particular embodiments of its implementation that do not go beyond the scope of the requested scope of legal protection and are obvious to specialists in the relevant field of technology.

Claims (1)

An Ethernet switch comprising: a printed circuit board that carries: an integrated service control processor; 48 25G SFP28 ports, 8 100G QSFP28 ports, a 1G management port, wherein the main module is connected to the central processor module via a PCIex2 bus; four cooling modules, wherein each cooling module contains two fans for cooling the Ethernet switch elements; a fan control module connected to the service control processor via an I2C bus and a general-purpose input/output line and configured to control the fans and distribute power between the four cooling modules, as well as to generate pulse-width modulation signals and read tachometer readings from each cooling module based on commands from the service control processor; an indicator module containing four light-emitting diodes and located on the front panel of the Ethernet switch to display the status of system signals and indicate the state of the Ethernet switch, wherein the indicator module contains a hardware reset button for the switch; an Ethernet switch central processor module; an input/output module, which is implemented on the rear panel of the Ethernet switch and contains: a management port, USB and a serial console port; two redundant power supplies based on the CRPS 2.0 standard, with each power supply providing a total power of up to 550 W, while all elements of the Ethernet switch are interconnected and located inside the case.