CN109327386B - Link aggregation method, device, equipment and readable storage medium - Google Patents
Link aggregation method, device, equipment and readable storage medium Download PDFInfo
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- CN109327386B CN109327386B CN201811243052.6A CN201811243052A CN109327386B CN 109327386 B CN109327386 B CN 109327386B CN 201811243052 A CN201811243052 A CN 201811243052A CN 109327386 B CN109327386 B CN 109327386B
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L45/00—Routing or path finding of packets in data switching networks
- H04L45/24—Multipath
- H04L45/245—Link aggregation, e.g. trunking
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L49/00—Packet switching elements
- H04L49/25—Routing or path finding in a switch fabric
- H04L49/253—Routing or path finding in a switch fabric using establishment or release of connections between ports
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L49/00—Packet switching elements
- H04L49/30—Peripheral units, e.g. input or output ports
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L49/00—Packet switching elements
- H04L49/30—Peripheral units, e.g. input or output ports
- H04L49/3054—Auto-negotiation, e.g. access control between switch gigabit interface connector [GBIC] and link
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Abstract
The invention discloses a link aggregation method, which comprises the following steps: acquiring a data packet through a plurality of ports of a switch; analyzing the data packet and detecting whether the data packet conforms to the LACPDU; and if so, correspondingly setting the Ethernet interface of the data packet as a preset virtual network card, handing over the data packet to an aggregation group through the virtual network card for LACP negotiation, and returning a successful negotiation message to the switch after the negotiation is successful so that the switch aggregates a plurality of links into an aggregated link according to the successful negotiation message. When the data packet is obtained and conforms to the LACPDU, the method corresponds the Ethernet interface of the data packet to a virtual network card, and the data packet is handed over to the aggregation group through the virtual network card to carry out LACP negotiation, so that LACP link aggregation is realized based on one network card, and the bandwidth and the data transmission efficiency are improved.
Description
Technical Field
The present invention relates to the field of network communication technologies, and in particular, to a link aggregation method, apparatus, device, and readable storage medium.
Background
With the continuous development of network technology and switching technology, the demand of communication networks and terminals for high-speed link bandwidth and low redundancy is increasingly apparent. At present, network equipment in the market is based on single line transmission, is not enough under various network requirements at present, and an LACP link aggregation technology is produced in order to improve data transmission efficiency.
The LACP link aggregation technology can virtualize more than two simultaneously connected links between two switches as one link to transmit information. The essence is that several physical links between two devices are "combined" into one logical data path, called an aggregated link. Lacp (link Aggregation Control protocol), which is a link Aggregation Control protocol, is independent of any hardware vendor and is supported by most switches. The method brings the advantages of low redundancy and high fault tolerance rate in addition to high bandwidth, and is easy to build.
However, the higher bandwidth supported by the LACP protocol needs to be supported by binding multiple network cards, that is, multiple network cards are bound to the same IP address to provide services to the outside. And the terminals of router/cable modem/adsl/vdsl and other types commonly used in the home network generally only have one network card, so that the LACP link aggregation cannot be performed.
Therefore, how to implement LACP link aggregation based on one network card is a problem to be solved by those skilled in the art.
Disclosure of Invention
The invention aims to provide a link aggregation method, a device, equipment and a readable storage medium, so as to realize LACP link aggregation based on one network card.
In order to achieve the above purpose, the embodiment of the present invention provides the following technical solutions:
a link aggregation method, comprising:
acquiring a data packet through a plurality of ports of a switch;
analyzing the data packet and detecting whether the data packet conforms to the LACPDU;
and if so, correspondingly setting the Ethernet interface of the data packet as a preset virtual network card, handing over the data packet to an aggregation group through the virtual network card for LACP negotiation, and returning a message of successful negotiation to the switch after the negotiation is successful so that the switch aggregates a plurality of links corresponding to the plurality of ports into an aggregation link according to the message of successful negotiation.
Wherein obtaining the data packet through the plurality of ports of the switch comprises:
acquiring the data packet through a plurality of ports of a switch, wherein the data packet is a data packet leading to the local computer, and adding switch header information to the data packet, and the header information at least comprises: port information of the data packet, and management packet type information.
Wherein the returning of the successfully negotiated message to the switch comprises:
and adding the header information for the successful negotiation message, and returning the added successful negotiation message to the switch.
Wherein, the switch aggregates the multiple links corresponding to the multiple ports into an aggregated link according to the successful negotiation message, including:
and the switch uses the Eth-trunk to carry out port convergence on the plurality of ports so as to realize that a plurality of links corresponding to the plurality of ports are aggregated into one aggregated link.
Wherein, still include:
and after the negotiation fails, returning a message of the negotiation failure to the switch so as to enable the switch to close the port convergence.
Wherein, still include:
and carrying out data transmission with the external network equipment through the aggregation link.
A link aggregation device, comprising:
the acquisition module is used for acquiring the data packet through a plurality of ports of the switch;
the detection module is used for analyzing the data packet and detecting whether the data packet conforms to the LACPDU;
and the aggregation module is used for correspondingly setting the Ethernet interface of the data packet as a preset virtual network card when the data packet conforms to the LACPDU, handing over the data packet to an aggregation group through the virtual network card for LACP negotiation, and returning a message of successful negotiation to the switch after the negotiation is successful so that the switch aggregates a plurality of links respectively corresponding to the plurality of ports into an aggregated link according to the message of successful negotiation.
Wherein the obtaining module is specifically configured to:
acquiring the data packet through a plurality of ports of a switch, wherein the data packet is a data packet leading to the local computer, and adding switch header information to the data packet, and the header information at least comprises: port information of the data packet, and management packet type information.
A link aggregation device, comprising:
a memory for storing a computer program;
a processor configured to implement the steps of the link aggregation method according to any one of the above when the computer program is executed.
A readable storage medium having stored thereon a computer program which, when executed by a processor, implements the steps of the link aggregation method of any of the above.
According to the above scheme, a link aggregation method provided by the embodiment of the present invention includes: acquiring a data packet through a plurality of ports of a switch; analyzing the data packet and detecting whether the data packet conforms to the LACPDU; and if so, correspondingly setting the Ethernet interface of the data packet as a preset virtual network card, handing over the data packet to an aggregation group through the virtual network card for LACP negotiation, and returning a message of successful negotiation to the switch after the negotiation is successful so that the switch aggregates a plurality of links corresponding to the plurality of ports into an aggregation link according to the message of successful negotiation.
As can be seen, when a data packet is obtained and the data packet conforms to the LACPDU, the method corresponds the ethernet interface of the data packet to a preset virtual network card, and hands the data packet to the aggregation group through the virtual network card to perform LACP negotiation, that is: the virtual network card is regarded as a real network card, and binding and negotiation operations are completed; and after the negotiation is successful, returning the successfully negotiated message to the switch so that the switch aggregates a plurality of links corresponding to the plurality of ports into an aggregated link according to the successfully negotiated message, thereby realizing LACP link aggregation based on one network card, improving the bandwidth and the data transmission efficiency and bringing good experience to users.
Accordingly, the link aggregation device, the link aggregation equipment and the readable storage medium provided by the embodiments of the present invention also have the above technical effects.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
Fig. 1 is a flowchart of a link aggregation method according to an embodiment of the present invention;
fig. 2 is a flowchart of another link aggregation method disclosed in the embodiment of the present invention;
fig. 3 is a schematic diagram of a link aggregation apparatus according to an embodiment of the present invention;
fig. 4 is a schematic diagram of a link aggregation device according to an embodiment of the present invention;
fig. 5 is a schematic diagram of data interaction between a switch and a network device according to an embodiment of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The embodiment of the invention discloses a link aggregation method, a device, equipment and a readable storage medium, which are used for realizing LACP link aggregation based on a network card.
Referring to fig. 1, a link aggregation method provided in an embodiment of the present invention includes:
s101, acquiring a data packet through a plurality of ports of a switch;
s102, analyzing the data packet and detecting whether the data packet conforms to the LACPDU; if yes, executing S103; if not, executing S104;
s103, correspondingly setting the Ethernet interface of the data packet as a preset virtual network card, handing over the data packet to an aggregation group through the virtual network card for LACP negotiation, and returning a successful negotiation message to the switch after the negotiation is successful so that the switch aggregates a plurality of links corresponding to a plurality of ports into an aggregation link according to the successful negotiation message;
and S104, performing default data packet processing.
The default packet processing is generally a flow of the router normally processing data, and includes: the http request sent to the local machine is received, and the data which is sent to the local machine but not supported, such as the NTP request, is discarded.
In this embodiment, the whole scheme can be viewed from the perspective of the network device, and then the execution main body for acquiring the data packet is the kernel of the network device or the real network card therein. Namely: the real network card is responsible for acquiring the data packet, and the virtual network is responsible for negotiating the data packet with the LACP protocol by the identity of the real network card. Specifically, the negotiation process in this embodiment is implemented based on ieee802.3 ad.
Wherein, the switch aggregates the multiple links corresponding to the multiple ports into an aggregated link according to the successful negotiation message, including: and the switch uses the Eth-trunk to carry out port convergence on the plurality of ports so as to realize that a plurality of links corresponding to the plurality of ports are aggregated into one aggregated link. Namely: the switch performs trunk setting on a plurality of ports to realize port convergence. And after the negotiation fails, returning a message of the negotiation failure to the switch so as to enable the switch to close the port convergence.
Lacpdu (link Aggregation Control Protocol Data unit), namely, a link Aggregation Control Protocol Data unit, is responsible for information interaction with an opposite terminal. The aggregation group is composed of the virtual network cards.
As can be seen, this embodiment provides a link aggregation method, where when a data packet is obtained and the data packet conforms to an LACPDU, an ethernet interface of the data packet is corresponding to a preset virtual network card, and the data packet is handed to an aggregation group through the virtual network card to perform LACP negotiation, that is: the virtual network card is regarded as a real network card, and binding and negotiation operations are completed; and after the negotiation is successful, returning the successfully negotiated message to the switch so that the switch aggregates a plurality of links corresponding to the plurality of ports into an aggregated link according to the successfully negotiated message, thereby realizing LACP link aggregation based on one network card, improving the bandwidth and the data transmission efficiency and bringing good experience to users.
The embodiment of the invention discloses another link aggregation method, and compared with the previous embodiment, the embodiment further explains and optimizes the technical scheme.
Referring to fig. 2, another link aggregation method provided in the embodiment of the present invention includes:
s201, acquiring a data packet through a plurality of ports of a switch, wherein the data packet is a data packet leading to the local computer, and adding switch head information for the data packet;
specifically, the header information includes at least: source port information of the data packet, and switch management packet type information.
S202, analyzing the data packet and detecting whether the data packet conforms to the LACPDU; if yes, go to S203; if not, executing S206;
s203, the Ethernet interface of the data packet is corresponded to a preset virtual network card, the data packet is handed to an aggregation group through the virtual network card to carry out LACP negotiation, and whether the negotiation is successful or not is detected; if yes, executing S204; if not, executing S205;
s204, adding header information for the successfully negotiated message, and returning the added successfully negotiated message to the switch, so that the switch aggregates a plurality of links corresponding to the plurality of ports into an aggregated link according to the successfully negotiated message;
s205, returning the negotiation failure message to the switch so as to enable the switch to close the port convergence.
And S206, performing default data packet processing.
In this embodiment, in order to enable the switch to send and receive data through the correct port, header information is added to the data packet when the data packet passes through the switch. Accordingly, when data is sent from the network device side to the switch, corresponding header information also needs to be added. And after the negotiation fails, returning a message of the negotiation failure to the switch so as to enable the switch to close the port convergence.
As can be seen, this embodiment provides another link aggregation method, where when a data packet is obtained and the data packet conforms to an LACPDU, an ethernet interface of the data packet is corresponding to a preset virtual network card, and the data packet is handed to an aggregation group through the virtual network card to perform LACP negotiation, that is: the virtual network card is regarded as a real network card, and binding and negotiation operations are completed; and after the negotiation is successful, returning the successfully negotiated message to the switch so that the switch aggregates a plurality of links corresponding to the plurality of ports into an aggregated link according to the successfully negotiated message, thereby realizing LACP link aggregation based on one network card, improving the bandwidth and the data transmission efficiency and bringing good experience to users.
Based on any of the above embodiments, it should be noted that the method further includes: and carrying out data transmission with the external network equipment through the aggregation link.
In the following, a link aggregation device provided by an embodiment of the present invention is introduced, and a link aggregation device described below and a link aggregation method described above may be referred to each other.
Referring to fig. 3, an embodiment of the present invention provides a link aggregation apparatus, including:
an obtaining module 301, configured to obtain a data packet through multiple ports of a switch;
a detection module 302, configured to parse the data packet and detect whether the data packet conforms to the LACPDU;
the aggregation module 303 is configured to, when the data packet conforms to the LACPDU, correspond an ethernet interface of the data packet to a preset virtual network card, and perform LACP negotiation by using the virtual network card to deliver the data packet to an aggregation group, and after negotiation is successful, return a message of successful negotiation to the switch, so that the switch aggregates a plurality of links corresponding to the plurality of ports into one aggregated link according to the message of successful negotiation.
Wherein the obtaining module is specifically configured to:
acquiring the data packet through a plurality of ports of a switch, wherein the data packet is a data packet leading to the local computer, and adding switch header information to the data packet, and the header information at least comprises: port information of the data packet, and management packet type information.
Wherein the aggregation module is specifically configured to:
and adding the header information for the successful negotiation message, and returning the added successful negotiation message to the switch.
Wherein the aggregation module is specifically configured to:
and the switch uses the Eth-trunk to carry out port convergence on the plurality of ports so as to realize that a plurality of links corresponding to the plurality of ports are aggregated into one aggregated link.
Wherein, still include:
and the closing module is used for returning a negotiation failure message to the switch after the negotiation failure so as to enable the switch closed ports to converge.
Wherein, still include:
and the transmission module is used for carrying out data transmission with the external network equipment through the aggregation link.
It can be seen that this embodiment provides a link aggregation device, including: the device comprises an acquisition module, a detection module and an aggregation module. Firstly, an acquisition module acquires a data packet through a plurality of ports of a switch; then the detection module analyzes the data packet and detects whether the data packet conforms to the LACPDU; when the data packet conforms to the LACPDU, the aggregation module correspondingly sets the Ethernet interface of the data packet as a preset virtual network card, and the data packet is handed over to the aggregation group through the virtual network card to carry out LACP negotiation, and after the negotiation is successful, the successful negotiation message is returned to the switch, so that the switch aggregates a plurality of links respectively corresponding to the plurality of ports into an aggregated link according to the successful negotiation message. Therefore, the modules cooperate with each other in a time-sharing manner and each plays its own role, so that the LACP link aggregation is realized based on one network card, the bandwidth and the data transmission efficiency are improved, and good experience is brought to users.
In the following, a link aggregation device provided by an embodiment of the present invention is introduced, and a link aggregation device described below and a link aggregation method and apparatus described above may be referred to each other.
Referring to fig. 4, an embodiment of the present invention provides a link aggregation device, including:
a memory 401 for storing a computer program;
a processor 402 for implementing the steps of the link aggregation method according to any of the embodiments described above when executing the computer program.
In the following, a readable storage medium provided by an embodiment of the present invention is introduced, and a readable storage medium described below and a link aggregation method, an apparatus, and a device described above may be referred to each other.
A readable storage medium having stored thereon a computer program which, when executed by a processor, performs the steps of the link aggregation method according to any of the embodiments described above.
The link aggregation method provided in the present specification may implement the following scheme, please refer to fig. 5. Acquiring a data packet through aggregation ports p1 and p2 of a switch, and adding header information for the data packet, wherein the header information is accompanied by corresponding port information of received data and type information of a switch management packet; adding a preprocessing module in a kernel of the network equipment, analyzing a corresponding management frame when a real network card receives a data packet, stripping header information of the data packet, and forwarding the data packet to corresponding virtual network cards ethp1 and ethp2 when detecting that the data packet is an LACPDU data packet; the virtual network cards ethp1 and ethp2 perform LACP protocol negotiation through the aggregation group, after the negotiation is successful, the successfully negotiated data is returned to the switch, and at this time, header information needs to be added to the successfully negotiated data. The ethp1 and ethp2 are slaves of an aggregation group, the aggregation group is a network interface obtained by binding, and the aggregation group is used for performing LACP protocol negotiation.
The embodiments in the present description are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (8)
1. A method of link aggregation, comprising:
acquiring a data packet through a plurality of ports of a switch;
analyzing the data packet and detecting whether the data packet conforms to the LACPDU;
if so, correspondingly setting the Ethernet interface of the data packet as a preset virtual network card, handing over the data packet to an aggregation group through the virtual network card for LACP negotiation, and after the negotiation is successful, returning a message of successful negotiation to the switch so that the switch aggregates a plurality of links corresponding to a plurality of ports respectively into an aggregation link according to the message of successful negotiation to realize LACP link aggregation based on one network card;
the virtual network card is regarded as a real network card, and binding and negotiation operations are completed;
wherein obtaining the data packet through the plurality of ports of the switch comprises:
acquiring the data packet through a plurality of ports of a switch, wherein the data packet is a data packet leading to the local computer, and adding switch header information to the data packet, and the header information at least comprises: port information of the data packet, and management packet type information.
2. The link aggregation method of claim 1, wherein returning the negotiation success message to the switch comprises:
and adding the header information for the successful negotiation message, and returning the added successful negotiation message to the switch.
3. The link aggregation method according to claim 1, wherein the aggregating, by the switch, the plurality of links respectively corresponding to the plurality of ports into one aggregated link according to the negotiation success message includes:
and the switch uses the Eth-trunk to carry out port convergence on the plurality of ports so as to realize that a plurality of links corresponding to the plurality of ports are aggregated into one aggregated link.
4. The link aggregation method according to claim 3, further comprising:
and after the negotiation fails, returning a message of the negotiation failure to the switch so as to enable the switch to close the port convergence.
5. The link aggregation method according to any one of claims 1 to 4, further comprising:
and carrying out data transmission with the external network equipment through the aggregation link.
6. A link aggregation device, comprising:
the acquisition module is used for acquiring the data packet through a plurality of ports of the switch;
the detection module is used for analyzing the data packet and detecting whether the data packet conforms to the LACPDU;
the aggregation module is used for correspondingly setting an Ethernet interface of the data packet as a preset virtual network card when the data packet conforms to the LACPDU, handing over the data packet to an aggregation group through the virtual network card for LACP negotiation, and returning a message of successful negotiation to the switch after the negotiation is successful so that the switch aggregates a plurality of links corresponding to the plurality of ports into an aggregated link according to the message of successful negotiation, and realizing LACP link aggregation based on one network card;
the virtual network card is regarded as a real network card, and binding and negotiation operations are completed;
wherein the obtaining module is specifically configured to:
acquiring the data packet through a plurality of ports of a switch, wherein the data packet is a data packet leading to the local computer, and adding switch header information to the data packet, and the header information at least comprises: port information of the data packet, and management packet type information.
7. A link aggregation device, comprising:
a memory for storing a computer program;
a processor for implementing the steps of the link aggregation method according to any one of claims 1 to 5 when executing the computer program.
8. A readable storage medium, having stored thereon a computer program which, when being executed by a processor, carries out the steps of the link aggregation method according to any one of claims 1 to 5.
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| CN110071868B (en) * | 2019-04-18 | 2021-04-09 | 新华三技术有限公司 | Link aggregation method, device and network equipment |
| CN113067771B (en) * | 2020-01-02 | 2022-11-01 | 上海诺基亚贝尔股份有限公司 | Managing virtual link aggregation channels |
| CN111526042B (en) * | 2020-04-10 | 2022-09-06 | 深圳震有科技股份有限公司 | Port aggregation method, system and storage medium based on rate |
| CN111555972A (en) * | 2020-04-10 | 2020-08-18 | 深圳震有科技股份有限公司 | Aggregation method, system and storage medium of aggregated link |
| CN116614459B (en) * | 2023-07-18 | 2023-10-13 | 中移(苏州)软件技术有限公司 | Link aggregation group management method and device based on Ethernet RDMA protocol |
| CN117812026B (en) * | 2024-02-28 | 2024-04-30 | 苏州元脑智能科技有限公司 | Aggregation link configuration method, device, system, switch equipment and storage medium |
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