RU172987U1 - Managed Multi-Service Router - Google Patents

Abstract

The utility model relates to data transmission systems, in particular to a modular, scalable structure for building routers of fast Ethernet networks. A device containing a switching unit and a route processor connected by first inputs / outputs, the first power supply, characterized in that it additionally introduced ternary associative memory, the output of which is connected to the third input of the route processor; a first processor module, the first input / output of which is connected to the third input / output of the switching unit; a second processor module, the first input / output of which is connected to the second input / output of the switching unit; Ethernet switch, the first output of which is connected to the second input of the first processor module, the second output - to the second input of the second processor module, and the third output - to the second input of the route processor; the first COM port, the input / output of which is connected to the third input / output of the first processor module; a second COM port, the input / output of which is connected to the third input / output of the second processor module; the first Ethernet port, the input / output of which is connected to the fourth input / output of the first processor module; a second Ethernet port, the input / output of which is connected to the fourth input / output of the second processor module; N SFP modules, the inputs / outputs of which are connected, respectively, with N inputs / outputs of the route processor; IP monitoring unit, the first input / output of which is connected to N + 1 input / output of the route processor; power system, consisting of a microcontroller, read-only memory, random access memory, information input unit, information output unit, display unit, interconnected by an address and data bus; a remote monitoring and control unit, the second input / output of which is connected to the second input / output of the IP monitoring unit, the first output - with the third input of the information input unit, and the first input - with the second output of the information output unit; a load measuring unit, the first output of which is connected to the third input of the remote monitoring and control unit, and the second output - to the second input of the information input unit; a power control unit, the first input of which is connected to the first output of the information output unit; uninterruptible power supply, the first output of which is connected to the second input of the power control unit, the second output - with the first input of the information input unit, and the input - with the third output of the information output unit; a controlled relay unit, the input of which is connected to the second output of the remote monitoring and control unit; a block of switched power supplies as part of the first and second power supplies, the first input of which is connected to the output of the power control unit, the second input to the output of the controlled relay unit, and the output to the input of the load measurement unit; the output of which is connected to the second input of the IP monitoring unit; Wi-Fi unit, the input / output of which is connected to the third input / output of the IP monitoring unit. 1 s and 3 n.p. f-ly, 5 ill.

Description

The utility model relates to data transmission systems, in particular, to a modular, scalable structure for building routers of fast Ethernet networks accessing a common data distribution bus.

The closest technical solution is the device described in http://www.conlex.kz/arxitektura-marshrutizatora/ - prototype.

This router contains a switching unit, a route processor, interconnected inputs / outputs, and input and output ports.

The input port performs the functions of the physical layer, completing the input physical line of the router. It also provides the link layer functions necessary to interact with the link layer functions on the other side of the communication line. It also performs the functions of searching and promoting data, so that a packet forwarded to the switching unit of the router appears at the output from the port from which it follows. Control packets (for example, packets containing RIP, OSPF, or BGP information) are moved from the input port to the route processor. In practice, several ports are often combined on one channel card of the router.

The switching block connects the input ports of the router with its output ports.

The output port stores packets forwarded to it through the switching block, and then transmits packets on the output line. The output port performs the functions of the physical and channel layers, the inverse functions of the input port. In the case of a bi-directional communication line (that is, when the line transmits data in both directions), the output port of the communication line, as a rule, is paired with the input port of this line, located on the same channel card.

A routing processor acts as a routing protocol, processes route information, and also performs network management functions in a router.

The purpose of the utility model is to monitor the status of the router and its uninterrupted power.

This goal is achieved by the fact that in the device containing the switching unit and the route processor, interconnected by the first inputs / outputs, the first power supply, an additional ternary associative memory is introduced, the output of which is connected to the third input of the route processor; a first processor module, the first input / output of which is connected to the third input / output of the switching unit; a second processor module, the first input / output of which is connected to the second input / output of the switching unit; Ethernet switch, the first output of which is connected to the second input of the first processor module, the second output - to the second input of the second processor module, and the third output - to the second input of the route processor; the first COM port, the input / output of which is connected to the third input / output of the first processor module; a second COM port, the input / output of which is connected to the third input / output of the second processor module; the first Ethernet port, the input / output of which is connected to the fourth input / output of the first processor module; a second Ethernet port, the input / output of which is connected to the fourth input / output of the second processor module; N SFP modules, the inputs / outputs of which are connected, respectively, with N inputs / outputs of the route processor; IP monitoring unit, the first input / output of which is connected to N + 1 input / output of the route processor; power system, consisting of a microcontroller, read-only memory, random access memory, information input unit, information output unit, display unit, interconnected by an address and data bus; a remote monitoring and control unit, the second input / output of which is connected to the second input / output of the IP monitoring unit, the first output - with the third input of the information input unit, and the first input - with the second output of the information output unit; a load measuring unit, the first output of which is connected to the third input of the remote monitoring and control unit, and the second output - to the second input of the information input unit; a power control unit, the first input of which is connected to the first output of the information output unit; uninterruptible power supply, the first output of which is connected to the second input of the power control unit, the second output - with the first input of the information input unit, and the input - with the third output of the information output unit; a controlled relay unit, the input of which is connected to the second output of the remote monitoring and control unit; a block of switched power supplies as part of the first and second power supplies, the first input of which is connected to the output of the power control unit, the second input to the output of the controlled relay unit, and the output to the input of the load measurement unit; the output of which is connected to the second input of the IP monitoring unit; Wi-Fi unit, the input / output of which is connected to the third input / output of the IP monitoring unit.

Comparison with the prototype shows that the inventive device is characterized by the presence of new units and their connections between them. Thus, the claimed 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, however, their introduction in this connection with the other elements leads to a new task of monitoring the status of the router and its uninterrupted power. This confirms the conformity of the technical solution to the criterion of "significant differences".

In FIG. 1 shows a General block diagram of the proposed device, which includes a multi-service router I, IP monitoring unit II, WIFI III unit, power supply system IV, data transmission medium (IP Network) V.

In FIG. 2 shows a power supply system IV, consisting of a microcontroller IV-1, read-only memory device (ROM) IV-2, random access memory (RAM) IV-3, an information input unit IV-4, an information output unit IV-5, an indication unit IV -13, interconnected by bus address and data IV-6; IV-10 remote monitoring and control unit, IV-9 load measuring unit, IV-8 power control unit, IV-7 uninterruptible power supply unit, IV-11 controlled relay unit and IV-12 switched power supply unit.

In FIG. Figure 3 shows an Ethernet router I containing a routing processor 1, switching unit 2, Ethernet switch 3, processor module 1 (2) 4, ternary associative memory 5, COM port 1 (2) 6, Ethernet port 1 (2) 7, N SFP modules 8, the first power supply unit (PSU 1) 9.

In FIG. 4 shows an implementation of a WIFI III block.

In FIG. 5 shows an implementation of a power control unit IV-8. The device operates as follows.

Routing in IP networks is the process of sending data packets based on the study of service information in the packet header, modification of part of the service information, and forwarding of the packet to the desired port.

The main function of routing data packets in the device is performed by the route processor 2 (Fig. 3). The trip processor is a dedicated processor designed and optimized for data packet processing operations. A special program is executed on this processor in an infinite loop, analyzing the contents of the packet (packet header, and, in certain cases, the packet body), modifying the packet header and forwarding. When forwarding a packet through a specific port, the route processor is guided by the routing table. This table is formed using manual configuration of routes, or using dynamic routing protocols.

The processor module is responsible for the formation of the routing table. On this module, dynamic routing processes are running. The module also configures the routing processor functions, collects statistics, provides communication with control systems and processes service packets.

To speed up the search process in the routing table, a special memory is used, the so-called ternary associative memory 5.

From the point of view of the router, data packets can be divided into two types: service packets (routing, control, monitoring, diagnostic protocols) designed to be processed directly by the processor module and transit packets, which are subjected to the routing process.

When the device boots, the processor module 4 communicates with neighboring devices via dynamic routing protocols, and a routing table is formed. After the table is formed, processor module 4 converts this information for storage in ternary associative memory 5. When a data packet arrives at the input / output port input, route processor 1 analyzes the packet header, service packets (for example, routing protocol packets) are redirected to the processor module 4, for transit packets, it searches for a match in the routing table stored in a simplified form in the ternary associative memory 5. After that, the transport is forwarded operating actions packet through the appropriate port.

The processor module 4 is used to monitor and control the route processor 1. In this module, the software modules of the routing protocols, spanning tree protocols, etc. are launched. The processor unit also processes service packets of information and packets that require additional processing not provided for by the route processor. To increase fault tolerance, the circuit provides for the installation of two processor modules 4.

The routing processor performs the main work on the processing, switching and routing of data packets, receives processing instructions from the processor unit 4.

Ethernet switch 3 and switching unit 2 (PCI switch) are designed for switching control commands and packets from two processor modules 4 to and from the route processor.

Ternary memory 5 is used to store routing tables and access sheets. Ternary memory allows you to search for data by mask, significantly accelerating the process of classifying packets.

The COM 6 and Eth 7 ports allow direct access to the configuration of processor modules 4.

The I / O ports are slots for SFP format modules.

Power System Operation IV.

In the initial state, the switched power supply unit is disabled. If it is necessary to connect the power supply unit BP1 (block of switched power supplies IV-12), the command is sent via LAN to the remote control and control unit IV-10. In this case, the relay is turned on in the controlled relay block IV-11, the contacts of which connect the power supply output from BP1 to the elements of the router and signal its connection via the remote control and control unit IV-10. When BP1 is turned on, the load current is calculated in the IV-9 load measuring unit, the value of which is transmitted to the IV-10 remote monitoring and control unit, as well as through the IV-4 information input unit to the IV-1 microcontroller and then through the address and data IV- 6 and the IV-5 information output unit to the IV-10 remote monitoring and control unit, and then through the IP monitoring unit II to the controlling authority.

The software embedded in the memory of the microcontroller IV-1, provides the calculation of the current consumption of consumed electricity, similar to electricity meters. This information is also displayed for each power supply (BP1 and BP2) in the display unit IV-13, together with the status of the power supplies (BP1, BP2) (on / off).

All calculations are carried out in the microcontroller IV-1. A possible implementation of the power control unit IV-8 is shown in FIG. 5. A triac is used as a control element.

An integral part of the claimed device is an uninterruptible power supply (UPS) IV-7, which supports power supply of BP1 and BP2 in the event of a power failure in a centralized network. UPS IV-7 is also under control of block IV-10 through the following circuits: block IV-4 - microcontroller IV-1 - block IV-5 - block IV-10 - LAN network. At the same time, the charge level of the batteries is monitored, their charging is direct, and the IV-7 UPS operating modes are signaled.

The IV-9 load measuring unit can be performed using Hall effect current sensors, compensation type current sensors, or on the ACS712 microassembly.

The IV-10 remote monitoring and control unit is an active network device that transmits and processes signals based on network protocols (for example, TCP / IP protocols).

The IV-1 microcontroller is an INTEL 80C51 LSI family with a clock frequency of 12-14 MHz.

The IV-2 read-only memory (ROM) is designed to store data memory (maximum router current consumption, UPS-IV-7 battery charge current) and commands for the IV-1 microcontroller, and is a standard 64 kB INTEL 27C512 LSI family.

Random access memory (RAM) IV-3 is designed to store information related to the operating mode of the system. RAM is connected to the system bus address and data 13-6 and is a standard LSI INTEL 6264 family with a capacity of 8 kbytes.

The information input / output blocks IV-4, IV-5 are designed to organize 8-bit input / output ports of logic level signals. They are connected to the system bus 13-6 and is a parallel bit register.

In addition, the proposed device uses an uninterruptible power supply (UPS) IV-7 with the addition of the battery and its charging unit to the main power supply. This ensures uninterrupted operation of the switch when the main supply voltage of 220 V.

Thus, the considered technical solution allows remote monitoring of the main parameters of the Ethernet router and ensure its uninterrupted operation.

Claims (4)

1. A device comprising a switching unit and a route processor connected by first inputs / outputs, a first power supply unit, characterized in that an additional ternary associative memory is inserted into it, the output of which is connected to the third input of the route processor; a first processor module, the first input / output of which is connected to the third input / output of the switching unit; a second processor module, the first input / output of which is connected to the second input / output of the switching unit; Ethernet switch, the first output of which is connected to the second input of the first processor module, the second output - to the second input of the second processor module, and the third output - to the second input of the route processor; the first COM port, the input / output of which is connected to the third input / output of the first processor module; a second COM port, the input / output of which is connected to the third input / output of the second processor module; the first Ethernet port, the input / output of which is connected to the fourth input / output of the first processor module; a second Ethernet port, the input / output of which is connected to the fourth input / output of the second processor module; N SFP modules, the inputs / outputs of which are connected, respectively, with N inputs / outputs of the route processor; IP monitoring unit, the first input / output of which is connected to N + 1 input / output of the route processor; power system, consisting of a microcontroller, read-only memory, random access memory, information input unit, information output unit, display unit, interconnected by an address and data bus; a remote monitoring and control unit, the second input / output of which is connected to the second input / output of the IP monitoring unit, the first output - with the third input of the information input unit, and the first input - with the second output of the information output unit; a load measuring unit, the first output of which is connected to the third input of the remote monitoring and control unit, and the second output - to the second input of the information input unit; a power control unit, the first input of which is connected to the first output of the information output unit; uninterruptible power supply, the first output of which is connected to the second input of the power control unit, the second output - with the first input of the information input unit, and the input - with the third output of the information output unit; a controlled relay unit, the input of which is connected to the second output of the remote monitoring and control unit; a block of switched power supplies as part of the first and second power supplies, the first input of which is connected to the output of the power control unit, the second input to the output of the controlled relay unit, and the output to the input of the load measurement unit; the output of which is connected to the second input of the IP monitoring unit; Wi-Fi unit, the input / output of which is connected to the third input / output of the IP monitoring unit. 2. The device according to p. 1, characterized in that all its elements are made using digital technology. 3. The device according to p. 1, characterized in that all its elements are made using digital technology. 4. The device according to p. 1, characterized in that the power system contains a battery, providing uninterrupted power to the router.

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