RU188796U1 - Subscriber Network Device with Virtualized Network Functions - Google Patents

Abstract

The utility model relates to data transmission systems, in particular, to systems using subscriber network device virtualization (vCPE) .1. A device containing a microcontroller, a read-only memory, a random access memory, a bus connected to the microcontroller, information input ports connected by an address and data bus to a microcontroller, characterized in that it additionally includes a Wi-Fi unit, a display unit, a video capture module, connected bus address and data with a microcontroller, the ambient temperature sensor, the temperature sensor of the cooling system, the outputs of which are connected to the inputs of the corresponding information input ports, fashion Or high-speed packet data processing with non-blocking high-speed FPGA-based switching matrix (FPGA), the first input / output of which is connected by bus to the microcontroller, Ethernet transceiver modules, the first inputs / outputs of which are connected by bus to the second input / output module of high-speed packet data with non-blocking high-speed FPGA-based switching matrix (FPGA), information input / output ports, the first inputs of which are connected to the second inputs / outputs of the Ethernet transmit-receive modules, and the second inputs / moves are inputs / outputs ustroystva.2. A device according to claim 1, characterized in that all its elements are made using digital technologies.

Description

The utility model relates to data transmission systems, in particular, systems using subscriber network device virtualization (vCPE).

Telecom operators are looking for new ways to generate revenue streams, more flexible organization of service provision, reduction of infrastructure maintenance costs and automation of management. The answer to such needs is the concept of NFV (Network Function Virtualization) - virtualization of network functions, which allows, in particular, the hardware implementation of the video surveillance function and the software implementation of the video surveillance management system through a virtual function. Solution developers are trying to offer operators new business cases that would make the use of technology cost-effective. Among the potentially attractive cases is vCPE (virtual Customer Premises Equipment or “virtualization of subscriber network devices”).

One of the main approaches to the implementation of vCPE is the Edge model, where all virtual functions are placed on the client side on an inexpensive device (a micro server with a sufficient number of Ethernet ports), which is a local NFV infrastructure (NFVI) for a specific customer. When using the approach of creating a small virtual infrastructure on client devices, there is no need for a huge pool of resources and costs appear only at the moment when the customer orders the service.

The closest technical solution that meets the requirements of the virtualization of subscriber network devices is the device described in the article “Evaluation of the effectiveness of network processor architectures” (Grischenko VI, Ladyzhenskiy Yu.V., Younis M. Main directions for the development of modern network processors / D. D. Morgaylov, Yu.V. Ladyzhensky, M. Yunis // Naukovi Pratsi DonNTU. - Donetsk, 2011. - (Series “Informatics, Cybernetics and Observational Technique"). - №14 (188). - p. 123-127 .) - prototype.

This device contains a microcontroller, a persistent storage device, a random access memory device connected by a bus to the microcontroller, information input ports connected by an address and data bus to the microcontroller.

The goal of the utility model is the addition of vCPE functionality through the implementation of the NFV concept: the hardware implementation of the video surveillance function in the form of a board and the software implementation of the video management system through a virtual function.

This goal is achieved by the fact that in the device containing the microcontroller, read-only memory, random access memory, connected to the bus with the microcontroller, information input ports connected to the address and data bus to the microcontroller, a Wi-Fi unit, a display unit, a video capture module, bus addresses and data with a microcontroller, an ambient temperature sensor, a cooling system temperature sensor, the outputs of which are connected to the inputs of the corresponding info input ports Information, high-speed packet data module with non-blocking high-speed FPGA-based switching matrix (FPGA), the first input / output of which is connected to the microcontroller by bus, Ethernet transceiver modules, the first inputs / outputs of which are connected to the second input / output of the high-speed packet data processing module with non-blocking high-speed FPGA-based switching matrix (FPGA), information input / output ports, the first inputs of which are connected to the second inputs / outputs of the Ethernet transceiver modules, and watts The second inputs / outputs are the device inputs / outputs.

Comparison with the prototype shows that the proposed device is characterized by the presence of new units and their connections between them. Thus, the claimed system 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 to the specified connection with the other elements leads to an expansion of the functional capabilities of the device, in particular, the implementation of the video surveillance function. This confirms the compliance of the technical solution with the criterion of "significant differences".

FIG. 1 is a block diagram of the proposed device, and FIG. 2 - AVerMedia DarkCrystal SD Capture Mini-PCIe Quad CM311H video capture module board.

The device includes: a microcontroller (CPU) 1, high-speed packet data processing module with non-blocking high-speed FPGA-based switching matrix (FPGA) 2, read-only memory (ROM) 4, random access memory (RAM) 3, information input ports 5, Wi block -Fi 6, address and data bus 7, display unit 8, video capture module 9, ambient temperature sensor 10, cooling system temperature sensor 11, Ethernet transceiver modules (PHY) 12, 13; information input / output ports 14.

The proposed device works as follows.

To connect remote offices, divisions, etc., which have their own local network using point-to-point, point-to-multipoint and multipoint-to-multipoint services, installation of special equipment is required, placed on the customer’s side, but served centrally (for example, by the service provider or central office). In this case, the most modern approach is to introduce the SDN / SD-WAN concept and support NFV services implemented centrally (for example, in the data center of the operator) or distributed (both on vCPE and on the core network, and in the data center).

The introduction of NFV will allow operators and large corporate customers to transform the network infrastructure by eliminating the use of specialized network equipment in favor of fully software and virtualized solutions.

To use NFV technology, subscriber equipment virtualization is needed through the use of vCPE. When connecting a new client, in addition to installing a demarcation device that separates the client’s network and the operator’s network, the service provider often faces the task of implementing additional functions — for example, to monitor and manage connections and traffic, solve customer’s business problems, and video surveillance in the form of an additional fee. and software implementation of a video management system through a virtual function, etc. For example, many corporate customers require additional features such as a firewall, VPN support, and DDoS protection.

In order to implement such services today, you need to deliver, install, configure, and then also maintain the corresponding equipment on the client side. NFV helps to solve this problem in a much more efficient way, namely, by virtualizing network functions in software applications that can be run both on regular servers and on virtual machines running on these servers. In this case, the operator can, using only one network interface device to delimit the traffic, “place” all other functions, such as a firewall, on its territory, and to simplify the network and manage it, in particular for building service chains, implement SDN.

The main purpose of the proposed device is to build the SD-WAN architecture network by telecom operators and for corporate networks. For this purpose, vCPE devices are used that are installed on the customer’s network side and allow implementation of the SDN approach to network management and service implementation in accordance with the NFV ideology.

For the implementation of a subscriber network device with virtualized network functions (vCPE), a well-known network processor building structure (prototype) with a central processor (CPU) 1, associated address and data bus 7 with information input ports 5, and permanent memory buses (ROM) is taken 4 and random access memory (RAM) 3. CPU 1 is also connected by a bus with a non-blocking high-speed FPGA-based switching matrix (FPGA) 2. Using FPGA 2 chips provides the necessary flexibility in the design of hardware logic brabotki network traffic, as well as the possibility of implementing additional functionality when changing competitive environment without modifying the device architectures.

The inputs of the information input ports 5 (FIG. 1) are connected to sensors of the ambient temperature 10 and the temperature of the cooling system of the vCPE 11, which makes it possible to monitor through the CPU 1 the temperature mode of the device. In addition, the address and data bus 7 is connected to the Wi-Fi 6 unit, which provides wireless monitoring of the device status, with the display unit 8 and the video capture module 9. The operation of this part of the device is controlled by the CPU 1.

Ethernet Transceiver Modules (PHY) 12, 13 is an integrated circuit designed to perform the functions of the physical layer of the OSI network model.

PHY chips allow other link layer chips, called MACs, to connect to a physical transmission medium, such as optical fiber or copper cable. A standard PHY microchip includes the Physical Coding Sublayer (PCS) and Physical Medium Dependent (PMD) modules. The physical encoding sublayer module performs the functions of encoding and decoding the transmitted and received data stream. The purpose of coding is to simplify the process of data stream recovery by the receiver.

Video Capture Module 9

Video capture module 9 provides input and digitization of the video signal with sound from one to eight sources (video cameras).

The module is made in the mini PCI Express form factor and is intended for installation in the mini PCI Express vCPE slot. The module performs hardware processing (encoding) of incoming video signals in accordance with the most popular algorithms. For example, in FIG. Figure 2 shows the AVerMedia DarkCrystal SD Capture Mini-PCIe Quad CM311H video capture module.

Thus, the proposed network device with virtualized network functions performs the virtualization of user equipment.

Claims (2)

1. Subscriber network device with virtualized network functions, containing a microcontroller, permanent memory, random access memory, bus connected to the microcontroller, information input ports connected by the address bus and data bus to the microcontroller, characterized in that Wi-Fi is additionally entered into it , display unit, video capture module, connected by address and data bus with microcontroller, ambient temperature sensor, cooling system temperature sensor, whose outputs are from High-speed packet data processing module with non-blocking high-speed FPGA-based switching matrix (FPGA), the first input / output of which is connected by bus to the microcontroller, the Ethernet transceiver modules, the first inputs / outputs of which are connected by bus to the second inputs / high-speed packet data module outputs with non-blocking high-speed FPGA-based switching matrix (FPGA), information input / output ports, the first inputs of which are connected to the second strokes / O Ethernet transceiver modules, and second inputs / outputs are input / output devices. 2. The device according to p. 1, characterized in that all its elements are made using digital technology.

Images