Out-of-band management system based on intelligent network card

Abstract

The invention relates to an out-of-band management system based on an intelligent network card, which comprises the intelligent network card, a server and an out-of-band management switch, and is characterized in that the intelligent network card comprises a network card management controller and a switching chip, and the network card management controller is in communication connection with the switching chip; the server comprises a baseboard management controller and a physical interface transceiver, and the baseboard management controller is in communication connection with the physical interface transceiver; the out-of-band management switch is in communication connection with the intelligent network card and the server, and the out-of-band management switch is used for receiving network card state information sent by the intelligent network card and service state information sent by the server. According to the invention, the out-of-band management switch is in communication connection with the intelligent network card and the server, so that the out-of-band management switch can receive the network card state information sent by the intelligent network card and the service state information sent by the server, thereby completing the state monitoring of the intelligent network card and the server. And the out-of-band management of the intelligent network card and the server is simultaneously completed through the out-of-band management switch.

Description

Technical Field

[0001] The present application relates to the technical field of out-of-band management, and in particular to an out-of-band management system based on a smart network card. Background Art

[0002] With the wider application of smart NICs and the continuous updating of data center network technology, data center customers have more and more comprehensive requirements for the out-of-band management functions of servers and smart NICs, and are more and more sensitive to costs. Although a smart NIC is a network card, it has all the modules of a server (processor module, memory module, monitoring module, input and output module, etc.). Therefore, when performing out-of-band management, it is necessary not only to perform out-of-band management and monitoring on the server, but also on the smart NIC. In the general data center architecture, a server has only one out-of-band management interface, which can be directly connected to the out-of-band management switch through a cable. However, in the use scenario of the smart NIC, the temperature, current, voltage and operating status of the smart NIC cannot be fully monitored and alarmed. Therefore, how to perform out-of-band management on the smart NIC is a technical problem that technicians in this field need to solve urgently. Summary of the invention

[0003] Based on this, it is necessary to provide an out-of-band management system based on a smart network card that can perform out-of-band management on the smart network card in response to the above technical problems.

[0004] The present application provides an out-of-band management system based on a smart network card, comprising: a smart network card, a server and an out-of-band management switch, wherein the smart network card comprises a network card management controller and a switching chip, and the network card management controller and the switching chip are communicatively connected; the server comprises a baseboard management controller and a physical interface transceiver, and the baseboard management controller and the physical interface transceiver are communicatively connected; the out-of-band management switch is communicatively connected to the smart network card and the server respectively, and the out-of-band management switch is used to receive network card status information sent by the smart network card and service status information sent by the server.

[0005] In the above-mentioned out-of-band management system based on the smart network card, the out-of-band management switch is connected to the smart network card and the server respectively, so that the out-of-band management switch can receive the network card status information sent by the smart network card and the service status information sent by the server, thereby completing the status monitoring of the smart network card and the server, and completing the out-of-band management of the smart network card and the server at the same time through the out-of-band management switch.

[0006] In one of the embodiments, the switching chip is communicatively connected to the out-of-band management switch, the network card management controller sends the network card status information through the switching chip, the physical interface transceiver is communicatively connected to the out-of-band management switch, and the baseboard management controller sends the service status information through the physical interface transceiver.

[0007] In one of the embodiments, the smart network card also includes: a first RJ45 connector, the server also includes: a second RJ45 connector, the out-of-band management switch includes: a third RJ45 connector and a fourth RJ45 connector, the switching chip is connected to the third RJ45 connector through the first RJ45 connector, and the physical interface transceiver is connected to the fourth RJ45 connector through the second RJ45 connector.

[0008] In one of the embodiments, the smart network card is communicatively connected to the server, the physical interface transceiver is communicatively connected to the out-of-band management switch, and the physical interface transceiver is used to send the network card status information and the service status information.

[0009] In one of the embodiments, the smart network card is connected to the server via SMBus communication.

[0010] In one embodiment, the switching chip includes: a first port, a second port and a third port, the first port is communicatively connected to the network card management controller, the second port is communicatively connected to the out-of-band management switch, the third port is communicatively connected to the physical interface transceiver, and the second port is used to send the network card status information and the service status information.

[0011] In one embodiment, the smart network card also includes: a fifth RJ45 connector and a sixth RJ45 connector, the server also includes: a seventh RJ45 connector, the out-of-band management switch includes: an eighth RJ45 connector, the second port is communicatively connected to the eighth RJ45 connector through the fifth RJ45 connector, and the third port is communicatively connected to the seventh RJ45 connector through the sixth RJ45 connector.

[0012] In one of the embodiments, the network card management controller is provided with a first virtual network port, and the baseboard management controller is provided with a second virtual network port, and the first virtual network port is communicatively connected with the second virtual network port through the switching chip.

[0013] In one of the embodiments, the first virtual network port is configured with a first static IP address, and the second virtual network port is configured with a second static IP address.

[0014] In one of the embodiments, the network card management controller is connected to the switching chip through RGMII, and the baseboard management controller is connected to the physical interface transceiver through RGMII. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] FIG1 is a schematic diagram of modules of an out-of-band management system in one embodiment;

[0016] FIG2 is a schematic diagram of a module of a dual uplink independent direct-through out-of-band management system in one embodiment;

[0017] FIG3 is a schematic diagram of a module of a dual uplink independent direct-through out-of-band management system in another embodiment;

[0018] FIG4 is a schematic diagram of a module of a single uplink server-side out-of-band management system in one embodiment;

[0019] FIG5 is a schematic diagram of a module of a single uplink server-side out-of-band management system in another embodiment;

[0020] FIG6 is a schematic diagram of modules of an out-of-band management system in another embodiment;

[0021] FIG7 is a schematic diagram of a module of a single-network card-side out-of-band management system in one embodiment;

[0022] FIG8 is a schematic diagram of modules of an out-of-band management system for a single networking card in another embodiment. DETAILED DESCRIPTION

[0023] In order to facilitate understanding of the present application, the present application will be described more fully below with reference to the relevant drawings. Embodiments of the present application are provided in the drawings. However, the present application can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the present application more thorough and comprehensive.

[0024] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art to which this application belongs. The terms used herein in the specification of this application are only for the purpose of describing specific embodiments and are not intended to limit this application.

[0025] It is understood that the terms "first", "second", etc. used in this application may be used herein to describe various elements, but these elements are not limited by these terms. These terms are only used to distinguish a first element from another element. For example, without departing from the scope of this application, a first resistor may be referred to as a second resistor, and similarly, a second resistor may be referred to as a first resistor. Both the first resistor and the second resistor are resistors, but they are not the same resistor.

[0026] It can be understood that the “connection” in the following embodiments should be understood as “electrical connection”, “communication connection”, etc. if the connected circuits, modules, units, etc. have electrical signals or data transmission between each other.

[0027] It should also be understood that the terms "include / comprise" or "have" etc. specify the existence of stated features, wholes, steps, operations, components, parts or combinations thereof, but do not exclude the possibility of the existence or addition of one or more other features, wholes, steps, operations, components, parts or combinations thereof. At the same time, the term "and / or" used in this specification includes any and all combinations of the relevant listed items.

[0028] First, some nouns involved in this application are analyzed:

[0029] SmartNIC (Data Processing Unit, DPU): is a new generation of data processing unit for data-centric computing. It integrates complete data center functions on a single chip. Together with CPU (Central Processing Unit) and GPU (Graphics Processing Unit), it constitutes the three pillars of new computing.

[0030] Physical interface transceiver (Physical, PHY): An Ethernet PHY is a chip that can send and receive Ethernet data frames.

[0031] BMC (Baseboard Management Controller): is a dedicated service processor that monitors the status of computers, servers, or other hardware drive devices through the use of sensors.

[0032] RJ45 (Registered Jack 45): It is a type of information socket (i.e. communication lead-out terminal) connector in the wiring system. The connector consists of a plug (connector, crystal head) and a socket (module). The plug has 8 grooves and 8 contacts.

[0033] MDI (Media Dependent Interface): MDI refers to the interface between the physical layer and the data link layer. It is responsible for transferring data from the physical layer to the data link layer.

[0034] SMBus (System Management Bus): A powerful bus (composed of two lines) that controls devices on the motherboard and collects corresponding information.

[0035] PCIe (PCI Express): is a high-speed serial computer expansion bus standard used to connect various components in a server.

[0036] USB (Universal Serial Bus): is a widely used interface standard that supports connection and data transmission between multiple devices.

[0037] IPMI (Intelligent Platform Management Interface): is a hardware-based management system that allows system administrators to remotely manage the system when it fails or when there is no operating system running. IPMI includes hardware and firmware components and can communicate through a network interface or a serial interface.

[0038] RESTful API: An application programming interface (API) based on the REST (Representational State Transfer) architectural style. It communicates data through the HTTP protocol and is widely used to build network applications and services.

[0039] RGMII (Reduced Gigabit Media Independent Interface): uses a 4-bit data interface, has an operating clock of 125MHz, and transmits data on both the rising and falling edges, so the transmission rate can reach 1000Mbps.

[0040] GMII (Gigabit Media Independent Interface): It operates at 125MHz and has an 8 / 10-bit wide data bus interface. It consists of two independent data channels, control signals for receiving and sending each data channel, network status signals, clock signals for each data channel, and management interface signals.

[0041] MII (Media Independent Interface): includes a 4-bit data bus, clock and control signals, operates at a frequency of 25MHz, and is suitable for lower-speed Ethernet communications.

[0042] In one embodiment, as shown in Figure 1, an out-of-band management system based on a smart network card is provided, including: a smart network card, a server and an out-of-band management switch, the smart network card includes a network card management controller and a switching chip, and the network card management controller and the switching chip are communicatively connected; the server includes a baseboard management controller and a physical interface transceiver, and the baseboard management controller and the physical interface transceiver are communicatively connected; the out-of-band management switch is communicatively connected to the smart network card and the server respectively, and the out-of-band management switch is used to receive network card status information sent by the smart network card and service status information sent by the server.

[0043] Specifically, the NIC management controller in the smart NIC is used to collect the performance data (temperature, current, voltage, etc.), working status and other information of the smart NIC, so as to obtain the NIC status information. The NIC management controller can perform preliminary processing and judgment on the NIC status information. The switching chip in the smart NIC is used for data exchange and works with the NIC management controller to ensure the correct transmission of data. The baseboard management controller in the server is used to monitor the hardware status, operating status, etc. of the server, so as to obtain service status information. The physical interface transceiver in the server is used to physically connect and transmit data with external devices (out-of-band management switch or smart NIC). Both the NIC management controller and the baseboard management controller can use BMC to monitor the smart NIC and server respectively.

[0044] The out-of-band management switch establishes communication connections with the smart network card and the server respectively, and is used to receive and process status information (network card status information and service status information) from both. It can be understood that, according to different communication topologies of the out-of-band management system, the out-of-band management switch can communicate with the smart network card and the server respectively through direct connection or indirect connection, as long as the out-of-band management switch can receive the network card status information sent by the smart network card and the service status information sent by the server. The out-of-band management switch can monitor the status of the smart network card and the server in real time, and when an abnormality or failure is detected, it can quickly issue an alarm or trigger the corresponding processing mechanism. Compared with the traditional in-band management method (i.e. management through the internal network of the server), out-of-band management is more independent and reliable, and will not be affected by internal network failures of the server.

[0045] In the above-mentioned out-of-band management system based on the smart network card, the out-of-band management switch is connected to the smart network card and the server respectively, so that the out-of-band management switch can receive the network card status information sent by the smart network card and the service status information sent by the server, thereby completing the status monitoring of the smart network card and the server, and completing the out-of-band management of the smart network card and the server at the same time through the out-of-band management switch.

[0046] In one embodiment, as shown in FIG2 , the switching chip is connected to the out-of-band management switch for communication, the network card management controller sends the network card status information through the switching chip, the physical interface transceiver is connected to the out-of-band management switch for communication, and the baseboard management controller sends the service status information through the physical interface transceiver.

[0047] Specifically, the out-of-band management system in this embodiment is a dual-uplink independent direct-through out-of-band management. The switching chip in the smart network card is directly connected to the out-of-band management switch, and the physical interface transceiver in the server is directly connected to the out-of-band management switch. The information transmission channels of the two are independent. In the smart network card, the switching chip is connected to the network card management controller through an internal bus or a dedicated interface. The switching chip is used to receive the network card status information from the network card management controller. The switching chip is also connected to the out-of-band management switch through a communication link (such as an Ethernet link), and the received network card status information is sent to the out-of-band management switch for further processing or monitoring. In the server, the physical interface transceiver is connected to the baseboard management controller through an internal bus or a dedicated interface. The physical interface transceiver is also connected to the out-of-band management switch through a physical medium (such as a network cable, optical fiber, etc.) and a corresponding interface (such as an RJ45 interface, an optical fiber interface, etc.), and the service status information from the baseboard management controller is converted into an electrical signal or an optical signal, and sent to the out-of-band management switch through a physical medium. Through the dual uplink independent direct-through out-of-band management of this embodiment, the out-of-band management switch can independently receive network card status information and service status information, thereby meeting the needs of out-of-band management.

[0048] In one embodiment, as shown in Figure 3, the smart network card also includes: a first RJ45 connector RJ45-1, the server also includes: a second RJ45 connector RJ45-2, the out-of-band management switch includes: a third RJ45 connector RJ45-3 and a fourth RJ45 connector RJ45-4, the switching chip is connected to the third RJ45 connector RJ45-3 through the first RJ45 connector RJ45-1, and the physical interface transceiver is connected to the fourth RJ45 connector RJ45-4 through the second RJ45 connector RJ45-2.

[0049] Specifically, in this embodiment, the smart network card and the server communicate with the out-of-band management switch through an RJ45 connector. The RJ45 connector is a common Ethernet interface used to connect network cables between network devices. The first RJ45 connector RJ45-1 set on the smart network card is used to physically connect to the out-of-band management switch. The first RJ45 connector RJ45-1 is connected to the output port of the switching chip so that the network card status information processed by the switching chip is sent to the out-of-band management switch. The second RJ45 connector RJ45-2 set on the server is used to physically connect to the out-of-band management switch. The second RJ45 connector RJ45-2 is connected to the output port of the physical interface transceiver of the server so that the service status information collected by the baseboard management controller is sent to the out-of-band management switch. The out-of-band management switch is provided with a third RJ45 connector RJ45-3 for receiving data from the smart network card. The third RJ45 connector RJ45-3 is connected to the first RJ45 connector RJ45-1 of the smart network card to receive the network card status information sent by the switching chip. The out-of-band management switch is also provided with a fourth RJ45 connector RJ45-4 for receiving data from the server, and the fourth RJ45 connector RJ45-4 is connected to the second RJ45 connector RJ45-2 of the server to receive service status information sent by the server. In some embodiments, the switch chip is connected to the first RJ45 connector RJ45-1 via MDI, and the physical interface transceiver is connected to the second RJ45 connector RJ45-2 via MDI.

[0050] In one embodiment, as shown in FIG4 , the smart network card is connected to the server for communication, the physical interface transceiver is connected to the out-of-band management switch for communication, and the physical interface transceiver is used to send network card status information and service status information.

[0051] Specifically, the out-of-band management system in this embodiment is a single-uplink server-side out-of-band management. The smart network card is directly connected to the server for communication. The server can receive the network card status information sent by the smart network card, and send the network card status information to the out-of-band management switch through the physical interface transceiver. The smart network card is managed as a whole by the server as a network card component. The physical interface transceiver can also send the service status information sent by the baseboard management controller to the out-of-band management switch. The out-of-band management switch can obtain the network card status information and service status information through one interface, thereby realizing the needs of out-of-band management.

[0052] In one embodiment, as shown in FIG5 , the smart network card is connected to the server via SMBus communication. The server is provided with a second RJ45 connector RJ45-2, the out-of-band management switch is provided with a fourth RJ45 connector RJ45-4, and the physical interface transceiver is connected to the fourth RJ45 connector RJ45-4 via the second RJ45 connector RJ45-2. In some other embodiments, the smart network card and the server may also be connected to each other via PCIe, USB, etc.

[0053] In one embodiment, as shown in FIG6 , the switching chip is connected to the out-of-band management switch, the network card management controller sends the network card status information through the switching chip, the physical interface transceiver is connected to the out-of-band management switch, the baseboard management controller sends the service status information through the physical interface transceiver, and the smart network card is connected to the server, and the physical interface transceiver is also used to send the network card status information and the service status information. Specifically, in this embodiment, out-of-band management is performed by combining dual uplink independent direct-through out-of-band management and single uplink server-side out-of-band management. In the event of a problem with one of the methods, it can be switched to another method for out-of-band management, thereby improving the redundancy of the out-of-band management system.

[0054] In one embodiment, as shown in Figure 7, the switching chip includes: a first port P1, a second port P2 and a third port P3, the first port P1 is communicated with the network card management controller, the second port P2 is communicated with the out-of-band management switch, the third port P3 is communicated with the physical interface transceiver, and the second port P2 is used to send network card status information and service status information.

[0055] Specifically, the out-of-band management system in this embodiment is out-of-band management on a single networking card. By configuring the switching chip, the third port P3 of the switching chip will forward the service status information to the out-of-band management switch through the second port P2 after obtaining the service status information sent by the physical interface transceiver. At the same time, the first port P1 of the switching chip will forward the network card status information to the out-of-band management switch through the second port P2 after receiving the network card status information sent by the network card management controller, thereby realizing the needs of out-of-band management.

[0056] In one embodiment, as shown in Figure 8, the smart network card also includes: a fifth RJ45 connector RJ45-5 and a sixth RJ45 connector RJ45-6, the server also includes: a seventh RJ45 connector RJ45-7, the out-of-band management switch includes: an eighth RJ45 connector RJ45-8, the second port P2 is communicatively connected to the eighth RJ45 connector RJ45-8 through the fifth RJ45 connector RJ45-5, and the third port P3 is communicatively connected to the seventh RJ45 connector RJ45-7 through the sixth RJ45 connector RJ45-6.

[0057] Specifically, in this embodiment, the smart network card communicates with the server and the out-of-band management switch respectively through the RJ45 connector. The server is provided with a seventh RJ45 connector RJ45-7, which is used to be physically connected to the sixth RJ45 connector RJ45-6 of the smart network card. The seventh RJ45 connector RJ45-7 is also connected to the output port of the physical interface transceiver of the server so as to send the service status information collected by the baseboard management controller to the smart network card. The fifth RJ45 connector RJ45-5 provided on the smart network card is used to be physically connected to the out-of-band management switch. The fifth RJ45 connector RJ45-5 is connected to the second port P2 of the switching chip so as to send the network card status information and service status information processed by the switching chip to the out-of-band management switch. The out-of-band management switch is provided with an eighth RJ45 connector RJ45-8 for receiving data from the smart network card, and the eighth RJ45 connector RJ45-8 is connected to the fifth RJ45 connector RJ45-5 of the smart network card to receive the network card status information and service status information sent by the switch chip. In some embodiments, the second port P2 of the switch chip is connected to the fifth RJ45 connector RJ45-5 through MDI, the third port P3 of the switch chip is connected to the sixth RJ45 connector RJ45-6 through MDI, and the physical interface transceiver is connected to the seventh RJ45 connector RJ45-7 through MDI.

[0058] In one embodiment, the network card management controller is provided with a first virtual network port, the baseboard management controller is provided with a second virtual network port, and the first virtual network port is communicatively connected with the second virtual network port through a switching chip.

[0059] Specifically, in this embodiment, the network card management controller and the baseboard management controller are formed into a local area network by constructing a virtual local area network (VLAN). In the case where the out-of-band management system is the architecture shown in the embodiment of Figure 8, when the switching chip is not configured, the management IP (Internet Protocol) address can be allocated to the management network port of the network card management controller of the smart network card and the baseboard management controller of the server. At the same time, in order to enable the network card management controller and the baseboard management controller to form a local area network, it is necessary to establish a first virtual network port on the network card management controller, and establish a second virtual network port on the baseboard management controller, and add a VLAN ID. After configuring the switching chip, the first port P1 and the third port P3 of the switching chip are divided into the same VLAN, so that the first virtual network port is connected to the second virtual network port through the switching chip.

[0060] In one embodiment, the first virtual network port is provided with a first static IP address, and the second virtual network port is provided with a second static IP address. Specifically, in this embodiment, when configuring the switch chip, the IP addresses of the first virtual network port and the second virtual network port are configured as the first static IP address and the second static IP address, respectively. Since the IP addresses of the first virtual network port and the second virtual network port are both fixed, when the baseboard management controller of the server initiates an outbound request to the network card management controller of the smart network card, the corresponding static IP address can be hard-coded in the program to facilitate communication between the two.

[0061] In a specific example, the management network IP obtained by the network interface eth0 of the network card management controller of the smart network card is 10.1.2.3, and the management network IP obtained by the network interface eth0 of the baseboard management controller of the server is 10.1.2.4. At the same time, vlan4088 is divided on the switching chip, and the addresses of the internal LAN communication of the network card management controller and the baseboard management controller are configured as 192.168.100.2 and 192.168.100.3 respectively. At this time, a virtual network port eth0.4088 is created on the network interface eth0 of the network card management controller and the baseboard management controller respectively, and a tag of VLAN 4088 is configured. Through this setting, the network card management controller and the baseboard management controller can communicate out-of-band through the local area network of the 192.168 network segment, including sending out-of-band IPMI commands, sending RESTful APIs, or performing firmware upgrade operations on the network card management controller through the baseboard management controller.

[0062] In one embodiment, the network card management controller is connected to the switching chip through RGMII, and the baseboard management controller is connected to the physical interface transceiver through RGMII. In some other embodiments, the network card management controller and the switching chip, the baseboard management controller and the physical interface transceiver can also communicate in GMII, MII and other ways, which can be selected according to the data transmission needs.

[0063] The technical features of the above embodiments may be combined arbitrarily. To make the description concise, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0064] The above-described embodiments only express several implementation methods of the present application, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the present application. It should be pointed out that, for a person of ordinary skill in the art, several variations and improvements can be made without departing from the concept of the present application, and these all belong to the protection scope of the present application. Therefore, the protection scope of the present application shall be subject to the attached claims.

Claims

1. An out-of-band management system based on a smart network card, characterized in that: include: An intelligent network card, the intelligent network card comprising a network card management controller and a switching chip, the network card management controller and the switching chip being communicatively connected; A server, the server comprising a baseboard management controller and a physical interface transceiver, the baseboard management controller and the physical interface transceiver being communicatively connected; An out-of-band management switch, wherein the out-of-band management switch is communicatively connected to the smart network card and the server respectively, and the out-of-band management switch is used to receive the network card status information sent by the smart network card and the service status information sent by the server.

2. The out-of-band management system based on smart network card according to claim 1, characterized in that: The switching chip is communicatively connected to the out-of-band management switch, the network card management controller sends the network card status information through the switching chip, the physical interface transceiver is communicatively connected to the out-of-band management switch, and the baseboard management controller sends the service status information through the physical interface transceiver.

3. The out-of-band management system based on smart network card according to claim 1, characterized in that: The smart network card also includes: a first RJ45 connector, the server also includes: a second RJ45 connector, the out-of-band management switch includes: a third RJ45 connector and a fourth RJ45 connector, the switching chip is connected to the third RJ45 connector through the first RJ45 connector, and the physical interface transceiver is connected to the fourth RJ45 connector through the second RJ45 connector.

4. The out-of-band management system based on smart network card according to claim 1 or 2, characterized in that: The intelligent network card is communicatively connected to the server, the physical interface transceiver is communicatively connected to the out-of-band management switch, and the physical interface transceiver is used to send the network card status information and the service status information.

5. The out-of-band management system based on smart network card according to claim 4, characterized in that: The smart network card is connected to the server via SMBus communication.

6. The out-of-band management system based on smart network card according to claim 1, characterized in that: The switching chip includes: a first port, a second port and a third port, the first port is communicatively connected to the network card management controller, the second port is communicatively connected to the out-of-band management switch, the third port is communicatively connected to the physical interface transceiver, and the second port is used to send the network card status information and the service status information.

7. The out-of-band management system based on smart network card according to claim 6, characterized in that: The smart network card also includes: a fifth RJ45 connector and a sixth RJ45 connector, the server also includes: a seventh RJ45 connector, the out-of-band management switch includes: an eighth RJ45 connector, the second port is communicatively connected to the eighth RJ45 connector through the fifth RJ45 connector, and the third port is communicatively connected to the seventh RJ45 connector through the sixth RJ45 connector.

8. The out-of-band management system based on smart network card according to claim 6, characterized in that: The network card management controller is provided with a first virtual network port, and the baseboard management controller is provided with a second virtual network port. The first virtual network port is communicatively connected with the second virtual network port through the switching chip.

9. The out-of-band management system based on smart network card according to claim 8, characterized in that: The first virtual network port is provided with a first static IP address, and the second virtual network port is provided with a second static IP address.

10. The out-of-band management system based on smart network card according to claim 1, characterized in that: The network card management controller is connected to the switching chip through RGMII, and the baseboard management controller is connected to the physical interface transceiver through RGMII.

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