CN106982170A - Multi-link load balance method and device based on linux system - Google Patents
Multi-link load balance method and device based on linux system Download PDFInfo
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- CN106982170A CN106982170A CN201710256938.3A CN201710256938A CN106982170A CN 106982170 A CN106982170 A CN 106982170A CN 201710256938 A CN201710256938 A CN 201710256938A CN 106982170 A CN106982170 A CN 106982170A
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- network interface
- linux system
- virtual network
- equipment
- load balance
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L47/00—Traffic control in data switching networks
- H04L47/10—Flow control; Congestion control
- H04L47/12—Avoiding congestion; Recovering from congestion
- H04L47/125—Avoiding congestion; Recovering from congestion by balancing the load, e.g. traffic engineering
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L47/00—Traffic control in data switching networks
- H04L47/50—Queue scheduling
- H04L47/62—Queue scheduling characterised by scheduling criteria
- H04L47/622—Queue service order
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L49/00—Packet switching elements
- H04L49/70—Virtual switches
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- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Data Exchanges In Wide-Area Networks (AREA)
Abstract
Present invention is disclosed a kind of multi-link load balance method and device based on linux system, method is included in the virtual network interface equipment created in the network equipment of operation linux system for receiving IP packets；The IP packets received are configured to ethernet data frame and send the ethernet data frame into the purpose network equipment by switch device by the virtual network interface equipment.The present invention has the advantages that to realize the multi-link load balance based on IP packets in a local network.
Description
Technical field
The present invention relates to network technique field, more particularly, to a kind of multi-link load balance side based on linux system
Method and device.
Background technology
The service of enterprise network balancing link load can balance the traffic load of network link, be entered according to the real-time response time
Row judges, transfers to the link of most lightly loaded to handle task.
In the conventional method for realizing balancing link load, TEQL (True Link Equalizer) method is merely able to fit
For in wide area network, it is impossible to suitable for LAN, and it realizes that load balancing is, by packet mode in a balanced way, not consider
Speed difference between each data link.Network interface card BONDING patterns are that two pieces of network interface cards with identical IP address are parallel
Link aggregation works into a logical links, wherein, it is necessary to which interchanger supports port to gather in network interface card BONDING patterns 0/4
Close, and do not support or not the multilink based on three-layer network IP bags to bear in multi-to-multi link mode, network interface card BONDING patterns 6
Carry balanced.
How multi-link load balance based on three-layer network IP bag be urgent need to resolve the problem of is realized in a local network.
The content of the invention
It is an object of the invention to the defect for overcoming prior art, there is provided a kind of multilink load based on linux system
Equalization methods and device, the multi-link load balance based on IP packets can be realized in a local network.
To achieve the above object, the present invention proposes a kind of following technical scheme：A kind of multilink based on linux system is born
Equalization methods are carried, including：
S1, creates the virtual network interface equipment for receiving IP packets in the network equipment of operation linux system；
S2, the virtual network interface equipment by the IP packets received be configured to ethernet data frame and will it is described with
Too net data frame is sent into the purpose network equipment.
Preferably, in step S1, virtual network device include virtual network interface, and with the virtual network interface phase
Corresponding queue rule, the physical network interface of the network equipment of the operation linux system need to be tied to virtual network interface
In corresponding queue rule.
Preferably, in step S2, carry out subpackage to the IP packets that receive, and by the IP packets after subpackage construct with
Too net data frame.Preferably, in step S2, virtual network interface equipment rotates forwarding Ethernet on the physical network interface
Data frame.
Another technical scheme is also provided：A kind of multi-link load balance device based on linux system, including
Virtual network interface equipment creating unit, is created in the network equipment of operation linux system for receiving IP numbers
According to the virtual network interface equipment of bag；
Ethernet frame structural unit, for the IP received packets to be configured into ethernet data frame, and will it is described with
Too net data frame is sent into the purpose network equipment.
Preferably, virtual network device includes virtual network interface, and the team corresponding with the virtual network interface
Row rule, the physical network interface of the network equipment of the operation linux system need to be tied to the corresponding team of virtual network interface
In row rule.
Preferably, the ethernet frame structural unit carries out subpackage to IP packets, and constructs ethernet data frame.
Preferably, the virtual network interface equipment rotates forwarding ethernet data frame on the physical network interface.
The beneficial effects of the invention are as follows：
Compared with prior art, the multi-link load balance method and device of the present invention based on linux system, energy
It is enough to realize the multi-link load balance based on IP packets, further improve network throughput performance；Can also realize base simultaneously
In IP datagram multilink connection there is provided link redundancy.
Brief description of the drawings
Fig. 1 is flow chart of the method for the present invention schematic diagram；
Fig. 2 is embodiments of the invention structured flowchart schematic diagram；
Fig. 3 is the apparatus structure block diagram representation of the present invention.
Embodiment
Below in conjunction with the accompanying drawing of the present invention, the technical scheme to the embodiment of the present invention carries out clear, complete description.
A kind of disclosed multi-link load balance method based on linux system, applied in LAN, energy
It is enough to realize the multi-link load balance based on three layers of IP packet.
As shown in figure 1, a kind of multi-link load balance method based on linux system, including
S1, creates the virtual network interface equipment for receiving IP packets in the network equipment of operation linux system；
Specifically, load balancing needs two-way realization, the network equipment of both link ends needs to simultaneously participate in, can be fine
Realize that loaded link is balanced.Accordingly, it would be desirable to be created in the network equipment that both link ends run linux system for receiving IP
The virtual network interface equipment of packet.
Virtual network device includes virtual network interface, and the qdisc corresponding with the virtual network interface
(queueing discipline, queue discipline).If linux kernel is sent out by some physical network interface on the network equipment
Packet is sent, then needs to add in data packet queue packet according to the qdisc configured for this physical network interface, kernel
Packet is taken out inside qdisc as much as possible, it is forwarded from physical network interface.
In order to realize load balancing, it is necessary to which virtual network interface is associated with physical network interface, accordingly, it would be desirable to will
Physical network interface is tied in the corresponding queue rule of virtual network interface, is bound physical interface equipment by such as issuing orders
Into queue rule：
Tc qdisc add dev DEV root teq10, wherein, DEV is the physical network interface on the network equipment,
Teq10 is the corresponding queue rule of virtual network interface.
As shown in Fig. 2 in the present embodiment, being carried out by taking the network equipment of two operation linux systems in LAN as an example
Detailed description.Described two network equipments include two physical network interface Ethernet2 and Ethernet3, described two
The individual network equipment is connected by interchanger, sets up two data link.Next, being created on the network equipment at data link two ends
Virtual network interface equipment is built, according to establishment of such as issuing orders：
The network equipment 1：
tc qdisc add dev eth2 root teq10
tc qdisc add dev eth3 root teq10
ip link set teq10 up
The network equipment 2：
tc qdisc add dev eth2 root teq10
tc qdisc add dev eth3 root teq10
ip link set teq10 up
The physical network interface of following Configuration network equipment 1 and the IP address of virtual network interface：
ip addr add dev teq10 192.168.4.82/24
ip addr add dev eth2 192.168.2.82/24
ip addr add dev eth3 192.168.3.82/24
The physical network interface of Configuration network equipment 2 and the IP address of virtual network interface：
ip addr add dev teq10 192.168.4.82/24
ip addr add dev eth2 192.168.2.82/24
ip addr add dev eth3 192.168.3.82/24
Wherein, the data that the interfaces of physical network interface Ethernet 2 are received on the network equipment 1 by interchanger send to
On physical network interface Ethernet 2 on the network equipment 2, the interfaces of physical network interface Ethernet 3 are received on the network equipment
To data sent by interchanger to the network equipment 2 on physical network interface Ethernet 3, altogether formed two Data-Links
Road.
With reference to shown in Fig. 1 and Fig. 2, the IP packets received are configured to by step S2, the virtual network interface equipment
Ethernet data frame simultaneously sends the ethernet data frame into the purpose network equipment.
Specifically, when the virtual network interface teq10 interfaces on the network equipment 1 receive IP packets, according to dispatching algorithm
To IP packets carry out subpackage, and packet header add 14 bytes Composition of contents ethernet frame, i.e., the purpose MAC of 6 bytes,
The source MAC of 6 bytes, and 2 bytes type, the upper strata IP agreement that the types of 2 bytes is indicated.
After IP packets are converted into ethernet frame, the corresponding queue rule of interface rotates candidate from physical interface
Interface is managed, and sends ethernet frame into interchanger from the physical interface of selection.
When queue rule distributes ethernet data frame to Ethernet 2 on the network equipment 1, the interfaces of Ethernet 2
It is forwarded in interchanger, because the interfaces of Ethernet 2 on the network equipment 1 with the Ethernet 2 on the network equipment 2 belong to same
One subnet, therefore, ethernet data frame are forwarded in the interfaces of Ethernet 2 on the network equipment 2.
As shown in figure 3, a kind of multi-link load balance device based on linux system, including
Virtual network interface equipment creating unit, is created in the network equipment of operation linux system for receiving IP numbers
According to the virtual network interface equipment of bag；
Ethernet frame structural unit, for the IP received packets to be configured into ethernet data frame, and will it is described with
Too net data frame is sent into the purpose network equipment.
Further, virtual network device includes virtual network interface, and corresponding with the virtual network interface
Queue rule.If linux kernel sends packet by some physical network interface on the network equipment, need according to for this
The qdisc of individual physical network interface configuration adds packet in data packet queue, and kernel takes inside qdisc as much as possible
Go out packet, it is forwarded from physical network interface, accordingly, it would be desirable to by the physical network interface on the network equipment
It need to be tied in the corresponding queue rule of virtual network interface, be bound according to such as issuing orders：
tc qdisc add dev DEV root teq10
Wherein, DEV is physical network interface, and teq10 is the corresponding queue rule of virtual network interface.
The ethernet frame structural unit will receive after IP packets and carry out subpackage, and structure to IP packets according to algorithm
Make ethernet data frame.Specifically, adding the Composition of contents ethernet frame of 14 bytes, i.e., the purpose of 6 bytes in IP packet header
Address MAC, the source address MAC of 6 bytes, and 2 bytes type, the type of 2 bytes indicates to be wrapped in ethernet frame
The protocol type contained is IP agreement.
Further, the virtual network interface equipment rotates forwarding Ethernet data on the physical network interface
Frame.Specifically, after IP packets are converted into ethernet frame, the corresponding queue rule of interface rotates selection from physical interface
Physical interface, and send ethernet frame into interchanger from the physical interface of selection.
The present invention can realize the multi-link load balance based on IP packets, further improve network throughput performance；Together
When can also be realize based on IP datagram multilink connection there is provided link redundancy.
The technology contents and technical characteristic of the present invention have revealed that as above, but those skilled in the art still may base
Make a variety of replacements and modification without departing substantially from spirit of the present invention, therefore, the scope of the present invention in teachings of the present invention and announcement
The content disclosed in embodiment should be not limited to, and various replacements and modification without departing substantially from the present invention should be included, and is this patent Shen
Please claim covered.
Claims (8)
1. a kind of multi-link load balance method based on linux system, it is characterised in that including：
S1, creates the virtual network interface equipment for receiving IP packets in the network equipment of operation linux system；
The IP packets received are configured to ethernet data frame and by the Ethernet by S2, the virtual network interface equipment
Data frame is sent into the purpose network equipment.
2. a kind of multi-link load balance method based on linux system according to claim 1, it is characterised in that step
In rapid S1, virtual network interface equipment includes virtual network interface, and the queue rule corresponding with the virtual network interface
Then, the physical network interface of the network equipment of the operation linux system need to be tied to the corresponding queue rule of virtual network interface
In then.
3. a kind of multi-link load balance method based on linux system according to claim 1, it is characterised in that step
In rapid S2, subpackage is carried out to the IP packets received, and the IP packets after subpackage are constructed into ethernet data frame.
4. a kind of multi-link load balance method based on linux system according to claim 2, it is characterised in that step
In rapid S2, virtual network interface equipment rotates forwarding ethernet data frame on the physical network interface.
5. a kind of multi-link load balance device based on linux system, it is characterised in that including
Virtual network interface equipment creating unit, is created in the network equipment of operation linux system for receiving IP packets
Virtual network interface equipment；
Ethernet frame structural unit, for the IP received packets to be configured into ethernet data frame, and by the Ethernet
Data frame is sent into the purpose network equipment.
6. a kind of multi-link load balance device based on linux system according to claim 5, it is characterised in that empty
Intending the network equipment includes virtual network interface, and the queue rule corresponding with the virtual network interface, the operation
The physical network interface of the network equipment of linux system need to be tied in the corresponding queue rule of virtual network interface.
7. a kind of multi-link load balance device based on linux system according to claim 5, it is characterised in that institute
State ethernet frame structural unit and subpackage is carried out to IP packets, and construct ethernet data frame.
8. a kind of multi-link load balance device based on linux system according to claim 5, it is characterised in that institute
State virtual network interface equipment and forwarding ethernet data frame is rotated on the physical network interface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201710256938.3A CN106982170A (en) | 2017-04-19 | 2017-04-19 | Multi-link load balance method and device based on linux system |
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| CN201710256938.3A CN106982170A (en) | 2017-04-19 | 2017-04-19 | Multi-link load balance method and device based on linux system |
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| CN201710256938.3A Pending CN106982170A (en) | 2017-04-19 | 2017-04-19 | Multi-link load balance method and device based on linux system |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109639590A (en) * | 2019-01-15 | 2019-04-16 | 网宿科技股份有限公司 | Realize the data transmission method and routing node device of the equilibrium of non-equivalence line load |
| CN114285786A (en) * | 2021-12-24 | 2022-04-05 | 中国农业银行股份有限公司 | Method and device for constructing network link library |
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| CN114285786A (en) * | 2021-12-24 | 2022-04-05 | 中国农业银行股份有限公司 | Method and device for constructing network link library |
| CN114285786B (en) * | 2021-12-24 | 2023-12-08 | 中国农业银行股份有限公司 | Construction method and device of network link library |
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Application publication date: 20170725 |