CN114866510B - Cross-network and off-site interconnection communication method and system based on InfiniBand network - Google Patents
Cross-network and off-site interconnection communication method and system based on InfiniBand network Download PDFInfo
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L61/00—Network arrangements, protocols or services for addressing or naming
- H04L61/09—Mapping addresses
- H04L61/10—Mapping addresses of different types
- H04L61/106—Mapping addresses of different types across networks, e.g. mapping telephone numbers to data network addresses
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L49/00—Packet switching elements
- H04L49/90—Buffering arrangements
- H04L49/9057—Arrangements for supporting packet reassembly or resequencing
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L67/00—Network arrangements or protocols for supporting network services or applications
- H04L67/01—Protocols
- H04L67/06—Protocols specially adapted for file transfer, e.g. file transfer protocol [FTP]
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
- Y02D30/00—Reducing energy consumption in communication networks
- Y02D30/50—Reducing energy consumption in communication networks in wire-line communication networks, e.g. low power modes or reduced link rate
Abstract
The invention belongs to the technical field of network communication, and provides a cross-network and off-site interconnection communication method and a system based on an InfiniBand network, wherein the method is based on that different gateway equipment establishes communication through a socket, mutually sends the states of IB network card ports of the own equipment, and waits for a subnet management service to be started when the gateway equipment mutually confirms that the IB network card ports are in a starting state; starting an IB subnet management service, reconstructing and forwarding a subnet management data packet according to an IB subnet management protocol, and fusing a plurality of IB subnets into one IB subnet through socket communication between gateway devices; under the IB sub-network, communication among a plurality of different-place IB clusters is carried out, so that the problem that the IB network cannot be interconnected across the operator network in different places is solved.
Description
Technical Field
The invention belongs to the technical field of network communication, and particularly relates to a cross-network and off-site interconnection communication method and system based on an InfiniBand network.
Background
The statements in this section merely provide background information related to the present disclosure and may not necessarily constitute prior art.
The prior published patent CN 101258719A-prolonged InfiniBand network real-time arrival method can realize interconnection and intercommunication of IB networks across operator networks based on hardware equipment with specific functions. Patent CN108989172 a-an interconnection method and system of ethernet and infiniBand networks, which implement interconnection and interworking of two networks based on conversion of corresponding addresses of ethernet and infiniBand and format conversion of data packets.
The inventors found that the following problems exist in the current inter-operator network interconnection across different places:
(1) IB network interconnection needs to rely on specific hardware gateway devices;
(2) For the address conversion and data packet format conversion design method, a certain amount of data address information needs to be maintained in real time, so that the design complexity is increased, and the method is not suitable for the different-place interconnection scene of the IB network.
Disclosure of Invention
In order to solve at least one technical problem in the background art, the invention provides a cross-network and off-site interconnection communication method based on an InfiniBand network, which solves the problem that an IB network cannot perform off-site cross-operator network interconnection in a mode of reconstructing an IB network subnet management data packet.
In order to achieve the above purpose, the present invention adopts the following technical scheme:
the first aspect of the present invention provides a method for inter-network and off-site interconnection communication based on an InfiniBand network, comprising the steps of:
the different gateway equipment establishes communication through socket, mutually transmits the state of the IB network card port of the own equipment, and waits for the sub-network management service to be started when the gateway equipment mutually confirms that the IB network card port is in a starting state;
starting an IB subnet management service, reconstructing and forwarding a subnet management data packet according to an IB subnet management protocol, and fusing a plurality of IB subnets into one IB subnet through socket communication between gateway devices; under the IB subnet, communication between a plurality of off-site IB clusters is performed.
A second aspect of the present invention provides a cross-network, off-site, inter-connect communication system based on an InfiniBand network, comprising: the system comprises a plurality of different-place IB clusters, a gateway device and a plurality of different-place IB clusters, wherein the IB clusters are connected to IB network card ports of the corresponding gateway device through an IB network, and ETC network card ports of the gateway device are connected through an operator network;
the different gateway equipment is used for establishing communication through socket, mutually sending the states of the IB network card ports of the own equipment, and waiting for the start of the subnet management service when the gateway equipment mutually confirms that the IB network card ports are in the starting state;
after the subnet management service is started, the gateway equipment is used for reconstructing and forwarding the subnet management data packet according to an IB subnet management protocol, and integrating a plurality of IB subnets into one IB subnet through socket communication among the gateway equipment; under the IB subnet, communication between a plurality of off-site IB clusters is performed.
A third aspect of the present invention provides a computer-readable storage medium.
A computer readable storage medium having stored thereon a computer program which when executed by a processor performs the steps of a method of cross-network, off-site interconnection communication based on an InfiniBand network as described above.
A fourth aspect of the invention provides a computer device.
A computer device comprising a memory, a processor and a computer program stored on the memory and executable on the processor, the processor implementing the steps in a method of cross-network, off-site interconnection communications based on an InfiniBand network as described above when the program is executed.
Compared with the prior art, the invention has the beneficial effects that:
1. the key point of the inter-site interconnection scene of the IB network is not in the interconnection and intercommunication of two networks, but in how to perform interconnection and intercommunication across an operator network between the inter-site IB networks.
2. The invention solves the problem that the IB network can not cooperatively calculate the different-place service by realizing interconnection and intercommunication of the different-place clusters of the IB network across the architecture of operators, and shields the interconnection difference of the bottom layer for the upper-layer service of the IB network.
Additional aspects of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention.
FIG. 1 is a schematic diagram of the overall flow of cross-network, off-site, interconnect communications over an InfiniBand network in accordance with the present invention;
figure 2 is a schematic diagram of IB subnet management startup of the present invention;
fig. 3 is a flow chart of forwarding a subnet management packet in accordance with the present invention;
FIG. 4 is a schematic illustration of the specific operation of the three property newspaper of the present invention;
fig. 5 is a schematic diagram of IB normal communication of the present invention;
figure 6 is a diagram of the topology of an IB inter-networking of the present invention across a network;
fig. 7 is a diagram of the overall effect of IB inter-network offsite interconnection of the present invention.
Detailed Description
The invention will be further described with reference to the drawings and examples.
It should be noted that the following detailed description is illustrative and is intended to provide further explanation of the invention. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs.
It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of exemplary embodiments according to the present invention. As used herein, the singular is also intended to include the plural unless the context clearly indicates otherwise, and furthermore, it is to be understood that the terms "comprises" and/or "comprising" when used in this specification are taken to specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof.
Interpretation of the terms
InfiniBand: (IB) is a computer network communication standard for high performance computing with very high throughput and very low latency for data interconnection from computer to computer. InfiniBand also serves as a direct or switched interconnect between servers and storage systems, as well as an interconnect between storage systems.
Example 1
Fig. 1 is a schematic overall flow chart, and as shown in fig. 1, the embodiment provides a cross-network and off-site interconnection communication method based on an InfiniBand network, which includes the following steps:
s101: the different gateway equipment establishes communication through socket, mutually transmits the state of the IB network card port of the own equipment, and waits for the sub-network management service to be started when the gateway equipment mutually confirms that the IB network card port is in a starting state;
s102: starting an IB subnet management service, reconstructing and forwarding a subnet management data packet according to an IB subnet management protocol, and fusing a plurality of IB subnets into one IB subnet through socket communication between gateway devices; under the IB subnet, communication between a plurality of off-site IB clusters is performed.
In one or more embodiments, in S101, the device of the foreign gateway establishes communication through a socket, and uses two IB network clusters in different places as an example, all nodes in the IB subnets interconnected in different places are powered on and started, including two gateway machines C, D, but does not start the subnet management function.
Machine C establishes socket communications with machine D, which is a normal communication procedure established based on the operator network.
After the socket communication is established between the two machines C and D, the IB network port states on the machines are mutually transmitted, and when the C and D mutually confirm that the IB network port physical layers are in the starting states, the intercommunication and interconnection of the two gateway machines are completed, and the subnet management service is waited to be started.
As shown in fig. 2, this embodiment takes IB cluster a as an example to open subnet management, and specifically includes:
the first step: the cluster A completes the initialization process of the subnet management and removes the machine C. The partial subnet management initialization process is consistent with the IB network native process.
And a second step of: the gateway machine C and the machine D complete the initialization process of the subnet management. The machine C captures the subnet management data packet sent by the subnet management node of the cluster A, and reconstructs the data packet returned to the subnet management node of the cluster A according to the attribute setting of the original switch, so that the subnet management node of the cluster A takes the gateway machine C and the machine D as a double-port switch.
And a third step of: after the subnet management node of the cluster a regards the machine C and the machine D as switches, all nodes in the IB cluster B are initialized according to the IB native subnet management initialization process.
The process of reconstructing the subnet management data packet is to send the subnet management data packet of the machine C to the subnet management node of the cluster a, hereinafter referred to as SMP, and modify some message characteristics.
As shown in fig. 3, in S102, the reconstructing and forwarding the subnet management data packet according to the IB subnet management protocol specifically includes: the gateway equipment acquires the subnet management data packet sent by the subnet management node of the IB network cluster in real time, judges whether the subnet management data packet is sent to the gateway equipment or not, if not, the routing field is modified according to relevant regulations of the IB subnet management routing, the gateway equipment forwards the routing field to other gateway equipment by utilizing socket communication, when the other gateway equipment receives the data, the data is filled into a sending buffer area of the IB network card of the gateway equipment, otherwise, the message attribute is modified.
As shown in fig. 3, first, after the cluster a opens the subnet management, the machine C receives the SMP packet sent by the subnet management node because it is a node in the cluster a, the first step is to determine whether the received SMP packet is sent to itself, if not, the received SMP packet is first modified according to the rules related to the IB subnet management routing, and then the received SMP packet is forwarded to the machine D by using socket communication, and then the machine D extracts the SMP packet and sends the SMP packet to the machine B from the port; if the message is sent to the self, the message attribute needs to be modified.
The machine C receives the subnet management packet sent by the cluster A, and firstly judges the method field to distinguish the get method and the set method. And secondly, judging a specific Attribute Name through an Attribute modifier field, wherein the technical scheme mainly aims at modifying the following Nodeinfo, switchinfo, portinfo types, and putting other SMP Attribute messages back to an initial value. And thirdly, modifying the data return data packet.
At this time, the machine C works by encapsulating the subnet data packet in the cluster a in socket communication and transmitting the encapsulated subnet data packet to the machine D. The machine D works by extracting the subnet management data packet in the socket communication and transmitting the data packet out through the IB network port of the machine D.
Specific implementation as shown in fig. 5, IB communication and subnet management initialization relies primarily on the packet forwarding functions of machine C and machine D.
As one or more embodiments, the process of modifying the message attribute includes: after receiving the subnet management data packet of the gateway device, the gateway device judges the message attribute based on the type of the message's message field and the type of the AttributeModifier field, reconstructs the subnet management data packet based on the judging result, and returns the reconstructed subnet management data packet to the original data packet.
Further, judging whether the subnet management node acquires the information of the gateway equipment (Get method) or the information of the subnet management node for setting the gateway equipment (Set method) according to the type of the method field;
judging a specific Attribute Name according to the Attribute modifier field, and judging the type needing modification, wherein the types comprise Nodeinfo, switchinfo, portinfo types;
and the SMP attribute message is put back to the initial value, and the modified subnet management data packet is returned to the original data packet.
The operations to be processed of different message attributes are different, and meanwhile, corresponding operations are needed to be carried out on the method in the SMP packet, wherein the operations include a Get method and a Set method. The Get method mainly includes that a subnet management node obtains information of a subnet machine, such as node information, switch information, port information and the like, and the SET method mainly includes that the subnet management is used for setting information of the subnet machine, such as allocating an LID, setting a port state, enabling link width, link speed and the like.
As shown in fig. 4, as one or more embodiments, the determining the message attribute based on the type of the message field and the type of the attribute modifier field, and reconstructing the subnet management data packet based on the determination result specifically includes:
1. if the SMP is the Get method, the attribute is Nodeinfo, the returned data packet needs to modify the field Node type to switch, the field numports to 2, the field System image-GUID, nodeGUID, portGUID can set the same value but is unique in the subnet, and other fields keep the initial value.
2. If the SMP is the Get method, the attribute is switchinfo, all fields hold default values and return the packet.
3. If the SMP is the Get method, the attribute is portinfo, the returned data packet needs to modify the field portstate to 2, the field localportnum to 1, the field portphysicalstate to 5, and the other fields to keep the initial values.
4. And (3) judging a set method, reserving data information of a corresponding field set by the subnet management, and responding and returning.
Example two
The embodiment provides a cross-network and different-place interconnection communication system based on an InfiniBand network, and FIG. 6 is a topological connection diagram for realizing IB cross-network and different-place interconnection, as shown in FIG. 6, the system comprises a plurality of different-place IB clusters, the IB clusters are connected to IB network card ports of corresponding gateway equipment through an IB network, and ETC network card ports of the gateway equipment are connected through an operator network;
taking two IB network clusters in different places as an example, an IB cluster a is connected to a first gateway device through an IB network, an IB cluster B is connected to a second gateway device through an IB network, the first gateway device comprises a first IB network card port C1 and a first ETC network card port C2, the second gateway device comprises a second IB network card port D1 and a second ETC network card port D2, the first IB network card port C1 is connected to an IB cluster a, the first ETC network card port C2 is connected to the second ETC network card port D2 through an operator network, and the second IB network card port D1 is connected to the IB cluster B; the connection mode is used for realizing interconnection between two different-place IB network clusters through the gateway equipment machine C and the gateway equipment machine D. The overall effect achieved after two different IB network clusters are connected is shown in fig. 7.
The different gateway equipment is used for establishing communication through socket, mutually sending the states of the IB network card ports of the own equipment, and waiting for the start of the subnet management service when the gateway equipment mutually confirms that the IB network card ports are in the starting state;
after the subnet management service is started, the gateway equipment is used for reconstructing and forwarding the subnet management data packet according to an IB subnet management protocol, and integrating a plurality of IB subnets into one IB subnet through socket communication among the gateway equipment; under the IB subnet, communication between a plurality of off-site IB clusters is performed.
The reconstructing and forwarding the subnet management data packet according to the IB subnet management protocol specifically comprises: the gateway equipment acquires the subnet management data packet sent by the subnet management node of the IB network cluster in real time, judges whether the subnet management data packet is sent to the gateway equipment or not, if not, modifies the routing field according to the relevant regulation of the IB subnet management routing, forwards the subnet management data packet to other gateway equipment by utilizing socket communication, and otherwise, modifies the attribute of the subnet management data packet.
The modifying the attribute of the subnet management data packet comprises: after receiving the subnet management data packet of the gateway device, the gateway device judges the message attribute based on the type of the message's message field and the type of the AttributeModifier field, reconstructs the subnet management data packet based on the judging result, and returns the reconstructed subnet management data packet to the original data packet.
The method comprises the steps of judging the message attribute based on the type of the message field and the type of the Attribute modifier field, and reconstructing the subnet management data packet based on the judging result, wherein the method specifically comprises the following steps:
if the subnet management data packet is a Get method, the attribute is Nodeinfo, the returned data packet needs to modify the field Node type into switch, field numports, field System image-GUID, nodeGUID and PortGUID, and other fields keep initial values;
if the subnet management data packet is a Get method, the attribute is switchinfo, all fields keep default values and return the data packet;
if the subnet management data packet is a Get method, the attribute is portinfo, the returned data packet needs to modify the field portstate, the field localportnum and the field portphysicalstate, and other fields keep initial values;
if the subnet management data packet is Set method, the data information of the corresponding field Set by the subnet management is reserved, and the response is returned.
Example III
The present embodiment provides a computer-readable storage medium having stored thereon a computer program which, when executed by a processor, performs the steps in a method of cross-network, off-site interconnection communication based on an InfiniBand network as described above.
Example IV
The embodiment provides a computer device, which comprises a memory, a processor and a computer program stored on the memory and capable of running on the processor, wherein the steps in the cross-network and off-site interconnection communication method based on the InfiniBand network are realized when the processor executes the program.
It will be appreciated by those skilled in the art that embodiments of the present invention may be provided as a method, system, or computer program product. Accordingly, the present invention may take the form of a hardware embodiment, a software embodiment, or an embodiment combining software and hardware aspects. Furthermore, the present invention may take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, magnetic disk storage, optical storage, and the like) having computer-usable program code embodied therein.
The present invention is described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems) and computer program products according to embodiments of the invention. It will be understood that each flow and/or block of the flowchart illustrations and/or block diagrams, and combinations of flows and/or blocks in the flowchart illustrations and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create means for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the computer-readable memory produce an article of manufacture including instruction means which implement the function specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
Those skilled in the art will appreciate that implementing all or part of the above-described methods in accordance with the embodiments may be accomplished by way of a computer program stored on a computer readable storage medium, which when executed may comprise the steps of the embodiments of the methods described above. The storage medium may be a magnetic disk, an optical disk, a Read-Only Memory (ROM), a Random access Memory (Random AccessMemory, RAM), or the like.
The above description is only of the preferred embodiments of the present invention and is not intended to limit the present invention, but various modifications and variations can be made to the present invention by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (8)
1. The cross-network and off-site interconnection communication method based on the InfiniBand network is characterized by comprising the following steps of:
the different gateway equipment establishes communication through socket, mutually transmits the state of the IB network card port of the own equipment, and waits for the sub-network management service to be started when the gateway equipment mutually confirms that the IB network card port is in a starting state;
starting an IB subnet management service, reconstructing and forwarding a subnet management data packet according to an IB subnet management protocol, and fusing a plurality of IB subnets into one IB subnet through socket communication between gateway devices; under the IB subnet, communication among a plurality of different-place IB clusters is carried out;
the reconstructing and forwarding the subnet management data packet according to the IB subnet management protocol specifically comprises: the gateway equipment acquires the subnet management data packet sent by the IB network cluster subnet management node in real time, judges whether the subnet management data packet is sent to the gateway equipment or not, if not, modifies the routing field according to the relevant regulation of the IB subnet management routing, forwards the routing field to other gateway equipment by utilizing socket communication, otherwise, modifies the attribute of the subnet management data packet;
the modifying the attribute of the subnet management data packet comprises: after receiving the subnet management data packet of the gateway device, the gateway device judges the message attribute based on the type of the message's message field and the type of the AttributeModifier field, reconstructs the subnet management data packet based on the judging result, and returns the reconstructed subnet management data packet to the original data packet.
2. The method for inter-network and inter-local communication based on InfiniBand network as claimed in claim 1, wherein the method for inter-local communication based on message type and AttributeModifier type of the message judges message attribute, and reconstructs subnet management data packet based on judging result, specifically comprising:
if the subnet management data packet is a Get method, the attribute is Nodeinfo, the returned data packet needs to modify the field Node type into switch, field numports, field System image-GUID, nodeGUID and PortGUID, and other fields keep initial values;
if the subnet management data packet is a Get method, the attribute is switchinfo, all fields keep default values and return the data packet;
if the subnet management data packet is a Get method, the attribute is portinfo, the returned data packet needs to modify the field portstate, the field localportnum and the field portphysicalstate, and other fields keep initial values;
if the subnet management data packet is Set method, the data information of the corresponding field Set by the subnet management is reserved, and the response is returned.
3. An InfiniBand network-based cross-network, off-site, inter-connect communication system comprising: the system comprises a plurality of different-place IB clusters, a gateway device and a plurality of different-place IB clusters, wherein the IB clusters are connected to IB network card ports of the corresponding gateway device through an IB network, and ETC network card ports of the gateway device are connected through an operator network;
the different gateway equipment is used for establishing communication through socket, mutually sending the states of the IB network card ports of the own equipment, and waiting for the start of the subnet management service when the gateway equipment mutually confirms that the IB network card ports are in the starting state;
after the subnet management service is started, the gateway equipment is used for reconstructing and forwarding the subnet management data packet according to an IB subnet management protocol, and integrating a plurality of IB subnets into one IB subnet through socket communication among the gateway equipment; under the IB subnet, communication among a plurality of different-place IB clusters is carried out;
the reconstructing and forwarding the subnet management data packet according to the IB subnet management protocol specifically comprises: the gateway equipment acquires the subnet management data packet sent by the IB network cluster subnet management node in real time, judges whether the subnet management data packet is sent to the gateway equipment or not, if not, modifies the routing field according to the relevant regulation of the IB subnet management routing, forwards the routing field to other gateway equipment by utilizing socket communication, otherwise, modifies the attribute of the subnet management data packet;
the modifying the attribute of the subnet management data packet comprises: after receiving the subnet management data packet of the gateway device, the gateway device judges the message attribute based on the type of the message's message field and the type of the AttributeModifier field, reconstructs the subnet management data packet based on the judging result, and returns the reconstructed subnet management data packet to the original data packet.
4. A cross-network and off-site interconnection communication system based on an InfiniBand network as claimed in claim 3, wherein said reconstructing and forwarding of sub-network management data packets according to an IB sub-network management protocol specifically comprises: the gateway equipment acquires the subnet management data packet sent by the subnet management node of the IB network cluster in real time, judges whether the subnet management data packet is sent to the gateway equipment or not, if not, modifies the routing field according to the relevant regulation of the IB subnet management routing, forwards the subnet management data packet to other gateway equipment by utilizing socket communication, and otherwise, modifies the attribute of the subnet management data packet.
5. The InfiniBand network-based off-site interconnect communication system of claim 4, wherein modifying attributes of the subnet management packet comprises: after receiving the subnet management data packet of the gateway device, the gateway device judges the message attribute based on the type of the message's message field and the type of the AttributeModifier field, reconstructs the subnet management data packet based on the judging result, and returns the reconstructed subnet management data packet to the original data packet.
6. The internet-based heterogeneous interconnection communication system according to claim 5, wherein the message attribute is determined based on the type of the message field and the type of the AttributeModifier field, and the subnet management packet is reconstructed based on the determination result, and the method specifically comprises:
if the subnet management data packet is a Get method, the attribute is Nodeinfo, the returned data packet needs to modify the field Node type into switch, field numports, field System image-GUID, nodeGUID and PortGUID, and other fields keep initial values;
if the subnet management data packet is a Get method, the attribute is switchinfo, all fields keep default values and return the data packet;
if the subnet management data packet is a Get method, the attribute is portinfo, the returned data packet needs to modify the field portstate, the field localportnum and the field portphysicalstate, and other fields keep initial values;
if the subnet management data packet is Set method, the data information of the corresponding field Set by the subnet management is reserved, and the response is returned.
7. A computer readable storage medium having stored thereon a computer program which when executed by a processor performs the steps of a method of internet-based, off-site interconnection communication over an InfiniBand network as claimed in any one of claims 1-2.
8. A computer device comprising a memory, a processor and a computer program stored on the memory and executable on the processor, wherein the processor, when executing the program, performs the steps of a method of cross-network, off-site interconnection communication over an InfiniBand network as claimed in any one of claims 1-2.
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