CN111526067B - Network shunt and communication method of network shunt - Google Patents
Network shunt and communication method of network shunt Download PDFInfo
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- CN111526067B CN111526067B CN202010337609.3A CN202010337609A CN111526067B CN 111526067 B CN111526067 B CN 111526067B CN 202010337609 A CN202010337609 A CN 202010337609A CN 111526067 B CN111526067 B CN 111526067B
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L43/00—Arrangements for monitoring or testing data switching networks
- H04L43/02—Capturing of monitoring data
- H04L43/026—Capturing of monitoring data using flow identification
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B19/00—Programme-control systems
- G05B19/02—Programme-control systems electric
- G05B19/04—Programme control other than numerical control, i.e. in sequence controllers or logic controllers
- G05B19/042—Programme control other than numerical control, i.e. in sequence controllers or logic controllers using digital processors
- G05B19/0428—Safety, monitoring
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F13/00—Interconnection of, or transfer of information or other signals between, memories, input/output devices or central processing units
- G06F13/38—Information transfer, e.g. on bus
- G06F13/40—Bus structure
- G06F13/4063—Device-to-bus coupling
- G06F13/4068—Electrical coupling
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B2219/00—Program-control systems
- G05B2219/20—Pc systems
- G05B2219/24—Pc safety
- G05B2219/24024—Safety, surveillance
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F2213/00—Indexing scheme relating to interconnection of, or transfer of information or other signals between, memories, input/output devices or central processing units
- G06F2213/0002—Serial port, e.g. RS232C
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F2213/00—Indexing scheme relating to interconnection of, or transfer of information or other signals between, memories, input/output devices or central processing units
- G06F2213/0016—Inter-integrated circuit (I2C)
Abstract
The embodiment of the invention discloses a network shunt and a communication method of the network shunt, wherein the network shunt comprises the following steps: the system comprises a business card, a Central Processing Unit (CPU) card and a power supply adapter card; the service card is used for copying, converging and filtering the service; the CPU card is connected with the service card and is used for analyzing and processing the flow data provided by the service card and controlling the service card in a service level; the power supply adapter card is connected with the service card through a power line and is used for providing power supply for the service card and the CPU card; the power supply switching card is connected with the service card through a control interface and is also used for performing electromechanical management on the service card and the CPU card. The technical scheme provided by the embodiment of the invention can simplify the hardware structure, reduce the development difficulty and reduce the cost.
Description
Technical Field
The embodiment of the invention relates to the technical field of networks, in particular to a network shunt and a communication method of the network shunt.
Background
With the arrival of big data and the 5G era, the big data mining, the network flow refinement analysis with wider bandwidth and the network security become more and more important, so that the network splitter has extremely wide application prospect. With the update and demand of network technology, higher requirements are put on the performance of the network splitter.
In the prior art, because the network iteration speed is high, a network shunt which needs to shunt network traffic needs to be continuously upgraded or developed, but the existing network shunt is difficult to develop and has high cost.
Disclosure of Invention
The embodiment of the invention provides a network shunt and a network shunt communication method, which can simplify a hardware structure, reduce development difficulty and reduce cost.
In a first aspect, an embodiment of the present invention provides a network splitter, including:
the system comprises a business card, a Central Processing Unit (CPU) card and a power supply adapter card;
the service card is used for copying, converging and filtering the service;
the CPU card is connected with the service card and is used for analyzing and processing the flow data provided by the service card and controlling the service card in a service level;
the power supply adapter card is connected with the service card through a power line and is used for providing power supply for the service card and the CPU card; the power supply switching card is connected with the service card through a control interface and is also used for performing electromechanical management on the service card and the CPU card.
In a second aspect, an embodiment of the present invention further provides a communication method of a network splitter, including:
the service is copied, converged and filtered through a service card of the network splitter;
the CPU card of the network shunt is used for analyzing and processing the flow data provided by the service card and performing logic control on the service card in a service level;
providing power supply for the service card and the CPU card through a power adapter card and performing electromechanical management; the power supply adapter card is connected with the service card through a power line and a control interface respectively.
According to the technical scheme provided by the embodiment of the invention, the network shunt is divided into the service card, the CPU card and the power supply switching card, so that each module can be independently re-developed and upgraded, the multiplexing of the modules is achieved, the development difficulty and the cost are reduced, particularly, under the condition of high-frequency upgrading caused by high network iteration speed, the condition of upgrading the whole equipment caused by upgrading the functions of part of the equipment is avoided, and the cost and the development difficulty are reduced.
Drawings
Fig. 1 is a schematic structural diagram of a network splitter according to an embodiment of the present invention;
fig. 2 is a schematic structural diagram of a network splitter according to an embodiment of the present invention;
FIG. 3 is a management framework diagram of a network splitter provided by an embodiment of the present invention;
fig. 4 is a flowchart of an implementation of a network splitter according to an embodiment of the present invention.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the invention and are not limiting of the invention. It should be further noted that, for the convenience of description, only some of the structures related to the present invention are shown in the drawings, not all of the structures.
Fig. 1 is a schematic structural diagram of a network splitter according to an embodiment of the present invention, and as shown in fig. 1, the network splitter according to the embodiment of the present invention includes: a service card 11, a central processing unit CPU card 12 and a power adapter card 13.
The service card 11 is used for copying, converging and filtering services; the CPU card 12 is connected to the service card 11, and is configured to analyze and process traffic data provided by the service card 11, and perform service level control on the service card 11; the power adapter card 13 is connected with the service card 11 through a power line and is used for providing power for the service card 11 and the CPU card 12; the power adapter card 13 is also connected with the service card 11 through a control interface, and is also used for performing electromechanical management on the service card 11 and the CPU card 12.
In the embodiment of the present invention, optionally, the CPU card 12 may be connected to the service card 11 through a standard custom interface, where the standard custom interface may include a plurality of custom interfaces. Optionally, the service card may be a main service card.
The network splitter provided by the embodiment of the invention is divided into three module forms of a service card, a CPU card and a power adapter card, so that the hardware realization and upgrading flexibility of the equipment are greatly optimized. In order to deal with hardware upgrading development, single module can be re-developed and upgraded, self-defined standard interfaces are adopted among the modules, the interfaces can be flexibly defined, and the functions of the interfaces are modified through software. Therefore, the module needing to be upgraded is developed independently, and the purposes of multiplexing the module and reducing the development and maintenance difficulty and cost are achieved. The method is an excellent solution for dealing with the high-frequency upgrade of the shunt equipment caused by the fast network iteration speed.
According to the network shunt provided by the embodiment of the invention, the network shunt is divided into the service card, the CPU card and the power supply switching card, so that each module can be independently re-developed and upgraded, the multiplexing of the modules is achieved, the multiplexing rate of the modules is improved, the development difficulty and the development cost are reduced, particularly, under the condition of high-frequency upgrading caused by high network iteration speed, the condition of upgrading the whole equipment caused by upgrading of partial functions of the equipment is avoided, and the cost and the development difficulty are reduced.
In one implementation of the embodiment of the present invention, as shown in fig. 2, the power adapter card 13 includes an upper power control unit 131; the service card 11 comprises a switching chip 111, a complex programmable logic device CPLD 112 and other units (not shown in fig. 2);
the CPLD 112 comprises an electromechanical logic management unit 113; the upper power control unit 131 is connected with the electromechanical logic management unit 113 through a control interface, and the upper power control unit 131 is used for sending a control management signal; the electromechanical logic management unit 113 is respectively connected with the switching chip 111, other units and the CPU card 12, and the electromechanical logic management unit 113 is configured to perform electromechanical management and parameter monitoring management on the switching chip 111, other units and the CPU card 12 based on the control signal; the switching chip 111 is connected to the CPU card 12.
In the embodiment of the present invention, the upper power control unit 131 and the electromechanical logic management unit 113 may be connected through an I2C interface (which may also be referred to as an IIC interface). The upper layer power control unit 131 may send control management signals such as power-on, interrupt, and reset, and the electromechanical logic management unit 113 of the CPLD 112 in the service card 11 may receive the control management signals of the upper layer power control unit 131, and perform control such as power-on, interrupt, and reset on other units in the service card 11 or the CPU card 12. The upper layer power control unit 131 may send a control management signal of a parameter such as temperature, and the electromechanical logic management unit 113 monitors the parameter such as temperature for other units in the service card 11 and the CPU card 12 based on the control management signal. The switching chip 111 and the CPU card 12 may be connected by a standard connector, for example, a COM3000 type connector.
In the related art, the electromechanical management logic unit is disposed on the power adapter card, and when the power adapter card performs power-on, terminal, temperature monitoring and management on the service card and the CPU card, the electromechanical management function of the power adapter card on the service card and the CPU card can be realized by connecting the power adapter card and the service card through a plurality of interfaces, thereby increasing the complexity and development difficulty of the power adapter card 13 and the service card 11, in the embodiment of the invention, the electromechanical management unit 113 is disposed in the service card 11, and the electromechanical management functions of power-on timing sequence and monitoring, interrupt convergence reporting, reset operation and the like of the service board and the CPU card 12 can be realized through only one power line and control interface by connecting the upper layer power management unit in the power adapter card 13 with the electromechanical management unit 113 in the service card 11, thereby reducing the interconnection between the service card and the power adapter card, the design can be optimized, the modular design is improved, the complexity, the development difficulty and the risk of hardware can be reduced, and the simple and convenient assembly of a hardware structure can be ensured.
In an implementation manner in the embodiment of the present invention, optionally, the upper power control unit 131 of the power adapter card 13 is connected to a fan (not shown in fig. 2) for controlling heat dissipation of the fan. Specifically, the upper power control unit 131 of the power adapter card 13 can monitor the temperature, and when the detected temperature is greater than the temperature threshold, the fan can be controlled to start to dissipate heat of the network shunt, or the upper power control unit 131 of the power adapter card 13 can also monitor other parameters, and when the monitored parameters reach set conditions, the fan is controlled to start, so that the heat dissipation is performed, the network shunt can be protected, and the normal work of the network shunt is ensured.
In this embodiment of the present invention, optionally, as shown in fig. 2, the service card 11 further includes an optical module 115; the optical module 115 is connected with the switching chip 111 and the CPLD 112 respectively; the switching chip 111 is configured to receive the service traffic data through the optical module, and perform packet parsing, processing, and forwarding; and the CPLD 112 is configured to receive the service state information through the optical module, and perform service control management based on the service state information. The high bandwidth service accessed by the optical module 115 may be accessed to the switch chip 111, and aggregated and distributed by the switch chip 111, and the CPU card 12 collects relevant traffic data through a latest bus and a PCIE interface (Peripheral Component Interconnect Express) interface and then performs analysis processing. Meanwhile, the stray logic of the optical module 115 is imported into the CPLD 112, and is connected to the CPU card 12 via the I2C interface, thereby performing service control and management.
In the embodiment of the present invention, as shown in fig. 2, the service card 11 and the CPU card 12 each include an interface unit 114; the interface unit 114 includes two I2C (Inter-Integrated Circuit, which may also be denoted as IIC) interfaces; the upper power control unit 131 of the power adapter card 13 is connected with the CPLD 112 through an I2C interface, specifically, the upper power control unit 131 is connected with the electromechanical logic management unit 113 in the CPLD; the CPLD 112 is connected with the CPU card 12 through two I2C interfaces; one of the two I2C interfaces is used for the CPLD 112 card to transmit control information of electromechanical management and parameter monitoring management to the CPU card 12; and the other interface is used for transmitting the control information of the service level to the CPLD 112 by the CPU card 12. The upper power control unit 131 of the power adapter card 13 is connected to the CPLD 112 through an I2C interface, and the CPLD 112 is connected to the CPU card 12 through an I2C interface, so that the power adapter card 13 transmits control information of electromechanical management and parameter monitoring management to the service card 11 and the CPU card through an I2C interface, thereby implementing electromechanical management to the service card 11 and the CPU card 12, and ensuring a simple structure of the network splitter. The CPU card 12 may also transmit service level control information through another I2C interface, so as to implement monitoring and management of the service link for the CPLD 112 and the switch chip 111.
In an implementation manner of the embodiment of the present invention, optionally, as shown in fig. 2, the Interface unit 114 further includes an Input/Output ((Input/Output, I/O) Interface, a Local Area Network Interface (LAN) Interface, a Universal Serial Bus (USB) Interface, a clock Interface, and a Serial Interface, the switch chip 111 is connected to the CPU card 12 through the I/O Interface, the LAN Interface, and the clock Interface, respectively, the CPLD 112 is further connected to the CPU card 12 through the Serial Interface, the USB Interface in the Interface unit 114 of the service card 11 is connected to a target USB Interface in the service card 11, and the service card 11 is connected to an external device through the target USB Interface, where the I/O/Interface is a high speed Input/Output Interface (HSIO Interface).
The CPU card 12 is a control card and has a flow analysis processing function. The interface unit 114 of the CPU card 12 and the interface unit 114 of the service card 11 are connected by a standard COM3000 type connector, and each interface unit 114 includes 16 high-speed I/O interfaces, 4 LAN interfaces, 2 USB3.0 (compatible with 2.0), 4 100M clock interfaces, two serial interfaces, two I2C interfaces, and logical interfaces such as reset and interrupt.
In the embodiment of the present invention, the CPU card 12 adopts a standard memory slot, which can flexibly expand the memory and cope with the analysis processing capability of different bandwidth services. The 16 high-speed I/O in the interface unit 114 of the CPU card 12 can be flexibly configured for communication with the switch chip 111 of the service card 11 and transmission of specified traffic, and for communication between the CPU card 12 and the external network interface; 4 LAN interfaces which can be used for communicating and interconnecting with the switching chip 111; clock signals transmitted by the 4 clock interfaces can provide clock reference for the service card 11, so that the system communication link clocks are homologous; 2 Universal Asynchronous Receiver/Transmitter (UART) interfaces are subjected to analog selection by the CPLD 112 and then output to an Asynchronous transmission standard interface (RS-232 interface) outside the backplane, so that the number of hardware interfaces is reduced while the interface debugging function is ensured.
It should be noted that the interface unit may further include other interfaces according to needs, and is not limited to the above interfaces.
In an implementation manner of the embodiment of the present invention, optionally, the service card 11 further includes an asynchronous transfer standard interface (RS-232 interface); the CPLD 112 is connected with external debugging equipment through an RS-232 interface; the CPLD 112 is further configured to control the external debugging device to communicate with the power adapter card 13, so that the external debugging device debugs the power adapter card 13, or control the external debugging device to communicate with the CPU card 12, so that the external debugging device debugs the CPU card 12. In the embodiment of the present invention, the CPLD 112 may be connected to an external debugging device through an RS-232 interface, and the CPLD 112 may be configured, so that the CPLD 112 selects to be connected to the power adapter card 13 through a serial interface, so that the external debugging device communicates with the power adapter card 13 through the CPLD 112, and the external debugging device debugs the power adapter card 13. Or the CPLD 112 may be configured correspondingly, so that the CPLD 112 selects to connect with the CPU card 12, so that the external debugging device communicates with the CPU card 12 through the serial interface, so that the external debugging device debugs the CPU card 12.
In the related technology, the service card comprises a plurality of RS-232 interfaces, so that the external debugging equipment is respectively connected with the plurality of RS-232 interfaces, so that the external debugging equipment is respectively communicated with the power supply adapter card and the CPU card through the service card, and the network shunt in the related technology needs to be provided with at least two RS-232 interfaces because the external debugging equipment is respectively communicated with the power supply adapter card and the CPU card through the service card, so as to achieve the debugging purpose, but the method ensures that the network shunt has more interfaces, has more complex structure and certain development difficulty, and the embodiment of the invention arranges one RS-232 interface in the service card, the CPLD in the service card is connected with the external debugging equipment through the RS-232 interface, and simultaneously has a selection function, so that the CPLD can select whether to be connected with the power supply adapter card or the CPU card according to the requirements, the number of interfaces of hardware can be reduced, the structure of the network shunt is simplified, the development difficulty is reduced, and the cost is reduced.
Fig. 3 is a management frame diagram of the network splitter according to the embodiment of the present invention, as shown in fig. 3, a control link in the present solution is divided into two layers, one layer is a layer of electromechanical management and parameter (temperature, etc.) monitoring, and for the service management layer, a power adapter board in the embodiment of the present invention sinks part of functions into the CPLD 112 of the service card 11 (i.e., an electromechanical logic management unit is set in the CPLD of the service card), and the power adapter card is responsible for fan control and reset, interrupt response, etc. of the service card and the CPU card, and monitors the temperature, etc. of the service card and the CPU card through an I2C interface. And the CPLD of the service card can also control the power-on sequence, monitor the electricity, interrupt and synthesize the like of the service card and the CPU card, so that partial functions of the power adapter plate can be sunk, the signal interconnection between the power adapter plate and the service card is greatly reduced, the burden on the power adapter plate is reduced, and the design difficulty and the assembly risk are reduced. For the service management level, a CPU card may be used as a master device of I2C, and a switching chip, a CPLD, an optical module, an Electrically Erasable and rewritable Read-Only Memory (EEPROM) and the like are used as slave devices, and the CPU card issues instructions to the slave devices with different addresses to monitor and manage the service and the service link. Therefore, through the control links of the two layers, the electromechanical, temperature and service management of the whole network splitter can be simplified.
In the related technology, the traffic collection is to analyze and deframe the network traffic through the signals of the physical layer and the data link layer, so as to obtain the original IP packet. The backbone network flow acquisition system is a system for acquiring and analyzing the flow of a backbone network, and is mainly applied to the fields of government network management, operator advertisement pushing, operator charging and evidence obtaining service, operator signaling monitoring service, campus network auditing, public security network monitoring, big data analysis and the like.
With the application of ethernet technology and optical fiber communication technology, the increase of bandwidth and scale of backbone network, the large-scale network traffic collection faces the challenges of huge data scale and increasingly complex traffic, and the performance of the traditional software-based traffic collection technology cannot meet the requirements. The existing high-speed backbone network flow acquisition schemes are mainly divided into three categories: the system comprises a flow acquisition system based on a multi-core processor, a flow acquisition system based on a switching chip and a network flow acquisition system based on a Field Programmable Gate Array (FPGA).
(1) Network flow collection system based on many nuclear processor: the system adopting the scheme can realize flow collection in a programmable way, can also modify messages and has very high flexibility. However, the processing capability of the system CPU is limited, the line speed processing cannot be really realized, and the overall performance is low, but due to the participation of the processor, complex processing, such as the management of the flow table, the application layer protocol identification, the binding of the Radius online and the message, and the like, is easy to realize.
(2) The high-speed network flow acquisition system based on the exchange chip has the advantages that the cost of the exchange chip in the system is low, and a mature chip set solution can be used for reference. However, the filtering function is very weak, only very simple and accurate multi-element filtering is supported, Deep Packet Inspection (DPI) cannot be performed, and ethernet interfaces such as POS and WAN cannot be supported, which also limits the range of the traffic collection scheme based on the switch chip in practical use.
(3) The FPGA-based high-speed network flow acquisition system has few solutions at present, and the main reasons are that the FPGA chip cost is high, all high-speed circuits and filtering algorithms need to be designed by self, the technical threshold is high, and deep research and development capacity is needed. But the advantages of the method and the system are also very obvious when the method and the system have the high flexibility of a multi-core system and the high performance of a switching system.
With the arrival of big data and the 5G era, the big data mining, the network flow refinement analysis with wider bandwidth and the network security become more and more important, so that the network splitter has extremely wide application prospect. With the update and demand of network technology, higher requirements are put on the performance of the network splitter. In the prior art, because the network iteration speed is high, a network shunt which needs to shunt network traffic needs to be continuously upgraded or developed, but the existing network shunt is difficult to develop and has high cost. The network shunt provided by the embodiment of the invention can simplify the hardware structure, reduce the development difficulty and reduce the cost.
Fig. 4 is a flowchart of a communication method of a network splitter according to an embodiment of the present invention, and as shown in fig. 4, the method according to the embodiment of the present invention includes:
s410: the service is copied, converged and filtered through a service card of the network splitter;
s420: the CPU card of the network shunt is used for analyzing and processing the flow data provided by the service card and carrying out logic control on the service card in the service level;
s430: the service card and the CPU card are powered and subjected to electromechanical management through the power adapter card; the power supply switching card is connected with the business card through a power line and a control interface respectively.
According to the technical scheme provided by the embodiment of the invention, the network shunt is divided into the three modules of the service card, the CPU card and the power supply switching card, and the three modules execute corresponding functions, so that each module can be independently re-developed and upgraded, the multiplexing of the modules is achieved, the development difficulty and the development cost are reduced, particularly, under the condition of high-frequency upgrading caused by high network iteration speed, the condition of upgrading the whole equipment caused by partial function upgrading of the equipment is avoided, and the cost and the development difficulty are reduced.
In an implementation manner of the embodiment of the present invention, optionally, the method provided in the embodiment of the present invention may further include:
sending a control management signal through an upper power control unit of the power adapter card;
and performing electromechanical management and parameter monitoring management on the exchange chip, other units and the CPU card in the business card through the electromechanical logic management unit of the CPLD in the business card based on the control management signal.
In an implementation manner of the embodiment of the present invention, optionally, the service card further includes an optical module;
the optical module is respectively connected with the switching chip and the CPLD, and the switching chip is connected with the CPU card;
the exchange chip is used for receiving the service flow data through the optical module and analyzing, processing and forwarding the data packet;
and the CPLD is used for receiving the service state information through the optical module and carrying out service control management based on the service state information.
In one implementation manner of the embodiment of the present invention, the service card and the CPU card each include an interface unit; the interface unit comprises two I2C interfaces;
the upper power management unit of the power adapter card is connected with the CPLD through an I2C interface;
the CPLD is connected with the CPU card through two I2C interfaces; one of the two I2C interfaces is used for transmitting control information of electromechanical management and parameter monitoring management to the CPU card by the CPLD card; and the other interface is used for transmitting the control information of the service level to the CPLD by the CPU card.
In an implementation manner of the embodiment of the present invention, optionally, the interface unit further includes an input/output I/O interface, a local area network LAN interface, a universal serial bus USB interface, a clock interface, and a serial interface;
the exchange chip is connected with the CPU card through an input/output I/O interface, the LAN interface and the clock interface respectively;
the CPLD is also connected with the CPU card through a USB interface and a serial interface respectively.
In an implementation manner of the embodiment of the present invention, optionally, the service card further includes a target USB interface;
the target USB interface is connected with a USB interface in an interface unit of the service card; and the service card is connected with external equipment through the target USB interface.
In an implementation manner of the embodiment of the present invention, optionally, the service card further includes an asynchronous transfer standard interface;
the CPLD is connected with external debugging equipment through the asynchronous transmission standard interface;
the CPLD is also used for controlling the communication between the external debugging equipment and the power adapter card so as to enable the external debugging equipment to debug the power adapter card, or controlling the communication between the external debugging equipment and the CPU card so as to enable the external debugging equipment to debug the CPU card.
In an implementation manner of the embodiment of the present invention, optionally, the upper power control unit of the power adapter card is connected to a fan, and is configured to control the fan to dissipate heat.
Reference may be made in detail to the embodiments of the invention described above.
It is to be noted that the foregoing is only illustrative of the preferred embodiments of the present invention and the technical principles employed. It will be understood by those skilled in the art that the present invention is not limited to the particular embodiments described herein, but is capable of various obvious changes, rearrangements and substitutions as will now become apparent to those skilled in the art without departing from the scope of the invention. Therefore, although the present invention has been described in greater detail by the above embodiments, the present invention is not limited to the above embodiments, and may include other equivalent embodiments without departing from the spirit of the present invention, and the scope of the present invention is determined by the scope of the appended claims.
Claims (8)
1. A network splitter, comprising:
the system comprises a business card, a Central Processing Unit (CPU) card and a power supply adapter card;
the service card is used for copying, converging and filtering the service;
the CPU card is connected with the service card and is used for analyzing and processing the flow data provided by the service card and controlling the service card in a service level;
the power supply adapter card is connected with the service card through a power line and is used for providing power supply for the service card and the CPU card; the power supply switching card is also connected with the service card through a control interface and is also used for performing electromechanical management on the service card and the CPU card;
the power adapter card comprises an upper layer power control unit; the service card comprises a switching chip, a complex programmable logic device CPLD and other units;
wherein, the CPLD comprises an electromechanical logic management unit;
the upper power supply control unit is connected with the electromechanical logic management unit through a control interface and used for sending a control management signal;
the electromechanical logic management unit is connected with the switching chip, the other units and the CPU card respectively, and is used for performing electromechanical management and parameter monitoring management on the switching chip, the other units and the CPU card based on the control management signal;
the service card also comprises an optical module;
the optical module is respectively connected with the switching chip and the CPLD, and the switching chip is connected with the CPU card;
the exchange chip is used for receiving the service flow data through the optical module and analyzing, processing and forwarding a data packet;
the CPLD is used for receiving the service state information through the optical module and carrying out service control management based on the service state information.
2. The network splitter of claim 1, wherein the traffic card and the CPU card each comprise an interface unit; the interface unit comprises two I2C interfaces;
the upper power management unit of the power adapter card is connected with the CPLD through an I2C interface;
the CPLD is connected with the CPU card through two I2C interfaces; one of the two I2C interfaces is used for transmitting control information of electromechanical management and parameter monitoring management to the CPU card by the CPLD card; and the other interface is used for transmitting the control information of the service level to the CPLD by the CPU card.
3. The network splitter of claim 2,
the interface unit also comprises an input/output I/O interface, a Local Area Network (LAN) interface, a Universal Serial Bus (USB) interface, a clock interface and a serial interface;
the exchange chip is connected with the CPU card through an I/O interface, an LAN interface and the clock interface respectively;
and the CPLD is also connected with the CPU card through serial interfaces respectively.
4. The network splitter of claim 3, wherein the traffic card further comprises a target USB interface;
the target USB interface is connected with a USB interface in an interface unit of the service card; and the service card is connected with external equipment through the target USB interface.
5. The network splitter of claim 2, wherein the traffic card further comprises an asynchronous transfer standard interface;
the CPLD is connected with external debugging equipment through the asynchronous transmission standard interface;
the CPLD is also used for controlling the communication between the external debugging equipment and the power adapter card so as to enable the external debugging equipment to debug the power adapter card, or controlling the communication between the external debugging equipment and the CPU card so as to enable the external debugging equipment to debug the CPU card.
6. The network splitter of claim 1, wherein the upper power control unit of the power adapter card is connected to a fan for controlling heat dissipation of the fan.
7. A communication method of a network splitter, comprising:
the service is copied, converged and filtered through a service card of the network splitter;
the CPU card of the network shunt is used for analyzing and processing the flow data provided by the service card and performing logic control on the service card in a service level;
providing power supply for the service card and the CPU card through a power adapter card and performing electromechanical management; the power adapter card is connected with the service card through a power line and a control interface respectively;
the power adapter card comprises an upper layer power control unit; the service card comprises a switching chip, a complex programmable logic device CPLD and other units;
wherein, the CPLD comprises an electromechanical logic management unit;
the upper power supply control unit is connected with the electromechanical logic management unit through a control interface and used for sending a control management signal;
the electromechanical logic management unit is connected with the switching chip, the other units and the CPU card respectively, and is used for performing electromechanical management and parameter monitoring management on the switching chip, the other units and the CPU card based on the control management signal;
the service card also comprises an optical module;
the optical module is respectively connected with the switching chip and the CPLD, and the switching chip is connected with the CPU card;
the exchange chip is used for receiving the service flow data through the optical module and analyzing, processing and forwarding a data packet;
the CPLD is used for receiving the service state information through the optical module and carrying out service control management based on the service state information.
8. The method of claim 7, further comprising:
sending a control management signal through an upper power control unit of the power adapter card;
and performing electromechanical management and parameter monitoring management on the switching chip, other units and the CPU card in the business card through an electromechanical logic management unit of the CPLD in the business card based on the control management signal.
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