CN108111413A - Method for routing, system and the equipment of stacking network - Google Patents
Method for routing, system and the equipment of stacking network Download PDFInfo
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- CN108111413A CN108111413A CN201611054703.8A CN201611054703A CN108111413A CN 108111413 A CN108111413 A CN 108111413A CN 201611054703 A CN201611054703 A CN 201611054703A CN 108111413 A CN108111413 A CN 108111413A
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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
- H04L45/70—Routing based on monitoring results
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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
- H04L45/12—Shortest path evaluation
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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
- H04L45/12—Shortest path evaluation
- H04L45/121—Shortest path evaluation by minimising delays
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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
- H04L45/12—Shortest path evaluation
- H04L45/125—Shortest path evaluation based on throughput or bandwidth
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Abstract
The invention discloses a kind of method for routing of stacking network, system and equipment, are related to software defined network technical field.Method therein includes：Software defined network SDN controllers obtain link-state information from each node of stacking network；SDN controllers determine the data transfer path between Source Site and purpose website according to the link-state information；SDN controllers generate the route selection information of the data transfer path；The route selection information is sent to the stacking network node of the data transfer path by SDN controllers, and data are handled according to the route selection information with the stacking network node for indicating the data transfer path.It is achieved thereby that the intelligent route selection in stacking network so that data are passed through quality preferably network node and link in stacking network and are transmitted, and ensure the quality of the business transmission of stacking network, promote the data transmission efficiency of stacking network.
Description
Technical field
The present invention relates to software defined network technical field, more particularly to a kind of method for routing of stacking network, system and
Equipment.
Background technology
In order to be based on internet to medium-sized and small enterprises client efficiently, cloud private leased circuit service is quickly provided, while avoid to bottom
Complex network be transformed and configure open-minded, operator needs to dispose SDN (Software Defined based on having network
Network, software defined network) it is controller, CPE (Customer Premise Equipment, customer terminal equipment), virtual
Network node forms Overlay (superposition) network, and provides business based on stacking network for client.
However, current stacking network method for routing is not smart enough, it is impossible to realize that data pass through the particular way of stacking network
Footpath is transmitted.Therefore the service transmission quality of stacking network may be poor, and the data transmission efficiency of stacking network is also relatively
It is low.
The content of the invention
A technical problem to be solved by this invention is：How intelligent route selection in stacking network is realized so that number
It is transmitted according to by quality preferably network node and link in stacking network.
One side according to embodiments of the present invention provides a kind of method for routing of stacking network, which is characterized in that should
Method includes：SDN controllers obtain link-state information from each node of stacking network；SDN controllers are according to link state
Information determines the data transfer path between Source Site and purpose website；The routing letter of SDN controllers generation data transfer path
Breath；Route selection information is sent to the stacking network node of data transfer path by SDN controllers, to indicate the folded of data transfer path
Network node is added to be handled according to route selection information data.
In some embodiments, link-state information includes bandwidth, time delay or the shake of link；SDN controllers according to
Link-state information determines that the data transfer path between Source Site and purpose website includes：SDN controllers are according to link state
Information determines that band is wider than preset value between Source Site and purpose website, time delay is less than preset value or shake is less than preset value
Data transfer path.
In some embodiments, route selection information includes：Data transfer path mark, the stacking network section of data transfer path
Dot address list, virtual network indicator, Intra-site source address, Intra-site destination address.
In some embodiments, the stacking network node of data transfer path carries out processing bag according to route selection information to data
It includes：Stacking network node determines corresponding route selection information according to the source address and destination address of message；Stacking network node according to
Itself stacking network node address and next-hop stacking network node address are packaged into outer header by corresponding route selection information；It is folded
Add network node according to next-hop node address in outer header, by the data forwarding with header to next-hop node, until
It is forwarded to purpose stacking network node；Purpose stacking network node decapsulates the data received；Purpose stacking network
Message after decapsulation is sent to the corresponding host of Intra-site destination address by node.
In some embodiments, stacking network node according to corresponding route selection information by itself stacking network node address with
Next-hop stacking network node address, which is packaged into outer header, to be included：According to the destination address of the inner header of data, judgement is
It is no to need to transmit data by particular path；If desired data are transmitted by particular path, then it will according to corresponding route selection information
Itself stacking network node address is packaged into outer header with next-hop stacking network node address.
Other side according to embodiments of the present invention provides a kind of software defined network controller, which is characterized in that
Including：Data obtaining module, for obtaining link-state information from each node of stacking network；Path determination module is used for
According to link-state information, the data transfer path between Source Site and purpose website is determined；Information generating module, for generating
The route selection information of data transfer path；Information sending module, for route selection information to be sent to the overlay network of data transfer path
Network node is handled data according to route selection information with the stacking network node for indicating data transfer path.
In some embodiments, link-state information includes bandwidth, time delay or the shake of link；Path determination module is used
In：Determine between Source Site and purpose website that band is wider than preset value, time delay is less than preset value according to link-state information or
Shake is less than the data transfer path of preset value.
In some embodiments, route selection information includes：Data transfer path mark, the stacking network section of data transfer path
Dot address list, virtual network indicator, Intra-site source address, Intra-site destination address.
Another aspect according to embodiments of the present invention provides a kind of route system of stacking network, including overlay network
Network node and above-mentioned controller, stacking network node include：Route selection information determining module, for the source address according to message
Corresponding route selection information is determined with destination address；Outer header package module, for being folded itself according to corresponding route selection information
Network node address is added to be packaged into outer header with next-hop stacking network node address；Data forwarding module, for according to outer
Next-hop node address in layer header, by the data forwarding with header to next-hop node, until being forwarded to purpose overlay network
Network node；Decapsulation module for being decapsulated to the data received, and the message after decapsulation is sent in website
The corresponding host of portion's destination address.
In some embodiments, outer header package module includes：Judging unit, for the inner header according to data
Destination address judges whether to need to transmit data by particular path；Outer header encapsulation unit, for if desired by specific
Path transmission data, then according to corresponding route selection information by itself stacking network node address and next-hop stacking network node
Location is packaged into outer header.
In the present invention, SDN controllers determine data transfer path by the link-state information of acquisition, and indicate overlay network
Network node handles data.It is achieved thereby that the intelligent route selection in stacking network so that data are passed through in stacking network
Quality preferably network node and link is transmitted, and is ensured the quality of the business transmission of stacking network, is promoted stacking network
Data transmission efficiency.
By referring to the drawings to the detailed description of exemplary embodiment of the present invention, other feature of the invention and its
Advantage will become apparent.
Description of the drawings
It in order to illustrate more clearly about the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing
There is attached drawing needed in technology description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
Some embodiments of invention, for those of ordinary skill in the art, without creative efforts, can be with
Other attached drawings are obtained according to these attached drawings.
Fig. 1 shows the schematic diagram of stacking network environment.
Fig. 2 shows the flow diagram of one embodiment of the method for routing of stacking network of the present invention.
Fig. 3 shows the route selection information of the data transfer path of generation.
Fig. 4 shows the flow signal of one embodiment that stacking network node is handled data according to route selection information
Figure.
Fig. 5 shows the process that stacking network node is packaged data and transfers according to route selection information.
Fig. 6 shows the structure diagram of one embodiment of SDN controllers of the present invention.
Fig. 7 shows the structure diagram of one embodiment of the route system of stacking network of the present invention.
Specific embodiment
Below in conjunction with the attached drawing in the embodiment of the present invention, the technical solution in the embodiment of the present invention is carried out clear, complete
Site preparation describes, it is clear that described embodiment is only part of the embodiment of the present invention, instead of all the embodiments.Below
Description only actually at least one exemplary embodiment is illustrative, is never used as to the present invention and its application or makes
Any restrictions.Based on the embodiments of the present invention, those of ordinary skill in the art are not making creative work premise
Lower all other embodiments obtained, belong to the scope of protection of the invention.
Inventor is it is considered that in order to efficiently use the network node disposed in advance in stacking network and link, it is necessary to design one
Kind intelligent route selection method, dynamic routing can be carried out according to the loading condition of stacking network by ensureing the business datum of client, for visitor
The business datum at family can select performance and quality preferably link and node-node transmission relatively.So as to ensure the matter of business transmission
Amount promotes the efficiency of transmission of stacking network.
Stacking network environment is described with reference to Fig. 1 first.
Fig. 1 shows the schematic diagram of stacking network environment.As shown in Figure 1, stacking network is carried out on existing IP network
The deployment of virtual network node carries out intercommunication, virtual network section between all virtual network nodes by the IP network of bottom
The network formed between point is exactly stacking network.Virtual network node can be a physical equipment or one virtual
Machine, vCPE1 (Virtual Customer Premise Equipment, virtual client terminal device), vCPE2 in figure,
VPE3 (Virtual Provider Edge, virtual operator's router), vP4, vP5, vPE6 are virtual network nodes, it
Between the network that is formed be exactly stacking network.How by setting up SDN controllers to establish VxLAN tunnels in stacking network
Road is the technical problem to be solved in the present invention so as to fulfill the routing of stacking network.
One embodiment of pretection switch method of the present invention is described with reference to Fig. 2.
Fig. 2 shows the flow diagram of one embodiment of the method for routing of stacking network of the present invention.As shown in Fig. 2, this
The method for routing of the stacking network of embodiment includes：
Step S202, SDN controller obtains link-state information from each node of stacking network.
For example, SDN controllers can indicate to report chain to its registered vCPE equipment, vPE nodes, vP node devices
Road interface and link-state information.Wherein, link-state information can include bandwidth, time delay or the shake of link.
Step S204, SDN controller determines the data transmission between Source Site and purpose website according to link-state information
Path.
Wherein, when link-state information includes the bandwidth, time delay or shake of link, SDN controllers can be according to this
A little link-state informations determine that band is wider than preset value between Source Site and purpose website, time delay is less than preset value or shake is small
In the data transfer path of preset value.
Step S206, SDN controller generate the route selection information of data transfer path.
The route selection information of the data transfer path of generation can be for example shown in Fig. 3.Wherein, route selection information includes data transmission
ID of trace route path PATH ID, stacking network node address list IP List of data transfer path, virtual network indicator V NI,
Intra-site source address (including MAC Address and IP address), Intra-site destination address are (including MAC Address and IP
Location).Wherein, a paths are identified with PATH ID, IP List specify the node of the stacking network passed through on the way, and VNI is
Traditional VxLAN ID are used to identify the source and destination address of different tenants, MAC Address and IP address portion identification Intra-site.
After SDN controllers calculate optimal path, route selection information can be sent to each stacking network node on the way according to this form.
Route selection information is sent to the stacking network node of data transfer path by step S208, SDN controller, with indicated number
Data are handled according to route selection information according to the stacking network node of transmission path.
For example, route selection information is sent to vCPE1, vPE3, vP4, vP5, vPE6 and vCPE2 by SDN controllers.It is above-mentioned folded
The step of network node is added to be handled according to route selection information data, is described in detail later.
Above-described embodiment proposes a kind of method for routing of stacking network, is matched somebody with somebody using SDN controllers and stacking network node
Interaction is closed, controller carries out the collection of network topology and load, carries out the dynamic select of optimal path and issue route selection information
To network node, each network node is handled data according to route selection information.It is achieved thereby that the intelligence in stacking network
Energy routing so that data are passed through quality preferably network node and link in stacking network and are transmitted, and ensure stacking network
The quality of business transmission promotes the data transmission efficiency of stacking network.
In addition, the present embodiment uses the central controlled routing scheme of control plane, it is more flexible to unite to stacking network tunnel
One automatically controls, and is simple and efficient；Meanwhile the present embodiment by SDN controller centralized knowledge network topologies and load and is selected
The scheme on road ensures the reliable and Fast Convergent of routing, is conducive to be promoted the management and control efficiency of stacking network.
The process that stacking network node handled data according to route selection information is described with reference to Fig. 4.
Fig. 4 shows the flow signal of one embodiment that stacking network node is handled data according to route selection information
Figure.As shown in figure 4, stacking network node includes according to the step S208 that route selection information handles data：
Step S4081, stacking network node vCPE1 determine that corresponding routing is believed according to the source address and destination address of message
Breath.
For example, after data packet enters vCPE1 equipment, vCPE1 is according to the Source Site A of data packet inner header and purpose website
B carries out routing, and by searching for the address information in route selection information, matching obtains the list item p1 in route selection information.
Step S4083, stacking network node according to corresponding route selection information by itself stacking network node address with it is next
It jumps stacking network node address and is packaged into outer header.
The process that stacking network node is packaged and transferred to data according to route selection information can be shown in such as Fig. 5.
In Fig. 5, the outer header of preceding four behavioral datas bag, MAC Address S-MAC, purpose stacking network including source stacking network node
The IP address D- of the MAC Address D-MAC of node, the IP address S-IP of source stacking network node and purpose stacking network node
IP.Remaining content is the outer header according to VxLAN protocol encapsulations.By taking stacking network node 1 as an example, stacking network node 1
It is packet encapsulation outer header according to the route selection information list item p1 matched, the MAC Address of outer header is itself stacking network
Node MAC addr MAC1 and next-hop stacking network node MAC addr MAC2, the IP address of outer header is stacking network node
IP address IP1 and next-hop stacking network node IP address IP2.
Step S4085, stacking network node turn the data with header according to next-hop node address in outer header
Next-hop node is sent to, until being forwarded to purpose stacking network node.
In data forwarding process, stacking network address of node is replaced according to step S4083 hop-by-hops, to ensure number
It is forwarded according to along selected path.
Optionally, outer layer message is packaged using VxLAN agreements, and increases by two fields PID and TTL, wherein PID marks
Know path, TTL often subtracts 1 by a node, to prevent from generating loop in transmission process.Subsequent node searches routing according to PID
Information table carries out Resealing for header, and hop-by-hop is all linked with one another, along the path transmission of selection to purpose stacking network section
Point.
Step S4087, purpose stacking network node decapsulate the data received.
For example, vCPE2 decapsulates the data received, internal layer data message is obtained.
Message after decapsulation is sent to the Intra-site destination of internal layer by step S4089, purpose stacking network node
The corresponding host in location.
In above-described embodiment, by designing the encapsulation format of intelligent route selection information and user data message, encapsulation and transmission
Data packet so that optimal path node and link of the data packet hop-by-hop Jing Guo selection reach purpose website, it is ensured that number of users
According to transmission end-to-end path specify.Present embodiment enhances the energy that preferred path is quickly adjusted according to network actual conditions
Power, realization are simple and efficient, and have stronger versatility.
Optionally, stacking network node in source can also be identified and shunt to business data packet.
In step S4083, source stacking network node can judge whether according to the destination address of the inner header of data
It needs to transmit data by particular path.If desired data are transmitted by particular path, then it will be certainly according to corresponding route selection information
Body stacking network node address is packaged into outer header with next-hop stacking network node address.
For example, source stacking network node can be shunted according to the IP address of the inner header of data.If according to IP
Address Recognition can not do the processing of encapsulation outer header to the flow for being destined to internet；And if IP address is destined to spy
Determine website and data center IP address, then can select to be transmitted according to specific path.
Above-described embodiment can be realized to there is the data packet of flow requirements of support selection particular path to be transmitted, further
The data transmission flexibility of stacking network is improved, so as to more efficiently dispatch stacking network resource.
In the case where the cloud private line service of stacking network scale is smaller or client there are special demands, such as to pass through certain
A particular path transmission can also use static configuration order to configure route selection information to intelligent route selection module, and SDN controllers will
The route selection information issues network node, realizes the transmission of business datum.So SDN controllers can pass through configuration and support simultaneously
Dynamic routing and static configuration routing.
In addition, the present invention is also convenient for disposing and implement, operator can be promoted in the cloud private line service based on stacking network
The offer ability of aspect can provide cloud private line service for medium-sized and small enterprises client and realize that the quick of business is opened and dynamic configuration
Adjustment ensures the good business experience of user.Meanwhile the present invention can be also used for operator itself and not have the area of the network coverage
Data center and the bandwidth of local operator are rented in domain, build carrying and quality that the stacking network of oneself realizes client traffic
It ensures.
One embodiment of SDN controllers of the present invention is described with reference to Fig. 6.
Fig. 6 shows the structure diagram of one embodiment of SDN controllers of the present invention.As shown in fig. 6, in the embodiment
SDN controllers 60 include：
Data obtaining module 602, for obtaining link-state information from each node of stacking network.
Path determination module 604, for according to link-state information, determining that the data between Source Site and purpose website pass
Defeated path.
Information generating module 606, for generating the route selection information of data transfer path.
Information sending module 608, for route selection information to be sent to the stacking network node of data transfer path, with instruction
The stacking network node of data transfer path is handled data according to route selection information.
Above-described embodiment proposes a kind of method for routing of stacking network, is matched somebody with somebody using SDN controllers and stacking network node
Interaction is closed, controller carries out the collection of network topology and load, carries out the dynamic select of optimal path and issue route selection information
To network node, each network node is handled data according to route selection information.It is achieved thereby that the intelligence in stacking network
Energy routing so that data are passed through quality preferably network node and link in stacking network and are transmitted, and ensure stacking network
The quality of business transmission promotes the data transmission efficiency of stacking network.
In one embodiment, link-state information includes bandwidth, time delay or the shake of link.
Path determination module is used for：Determine that band is wider than default between Source Site and purpose website according to link-state information
Value, time delay are less than the data transfer path of preset value or shake less than preset value.
In one embodiment, route selection information includes：Data transfer path mark, the stacking network section of data transfer path
Dot address list, virtual network indicator, Intra-site source address, Intra-site destination address.
One embodiment of the route system of stacking network of the present invention is described with reference to Fig. 7.
Fig. 7 shows the structure diagram of one embodiment of the route system of stacking network of the present invention.It as shown in fig. 7, should
The route system 70 of stacking network in embodiment includes stacking network node 702 and SDN controllers 60.Wherein, overlay network
Network node 702 includes：
Route selection information determining module 7022 determines corresponding routing letter for the source address according to message and destination address
Breath.
Outer header package module 7024, for according to corresponding route selection information by itself stacking network node address under
One jump stacking network node address is packaged into outer header.
Data forwarding module 7026, for according to next-hop node address in outer header, the data with header to be turned
Next-hop node is sent to, until being forwarded to purpose stacking network node.
Decapsulation module 7028 for being decapsulated to the data received, and the message after decapsulation is sent to
The corresponding host of Intra-site destination address.
In above-described embodiment, by designing the encapsulation format of intelligent route selection information and user data message, encapsulation and transmission
Data packet so that optimal path node and link of the data packet hop-by-hop Jing Guo selection reach purpose website, it is ensured that number of users
According to transmission end-to-end path specify.Present embodiment enhances the energy that preferred path is quickly adjusted according to network actual conditions
Power, realization are simple and efficient, and have stronger versatility.
In one embodiment, outer header package module 7024 includes：
Judging unit 70242 for the destination address of the inner header according to data, judges whether to need to pass through particular way
Transmit data in footpath.
Outer header encapsulation unit 70242, for if desired transmitting data by particular path, then according to corresponding routing
Itself stacking network node address and next-hop stacking network node address are packaged into outer header by information.
Above-described embodiment can be realized to there is the data packet of flow requirements of support selection particular path to be transmitted, further
The data transmission flexibility of stacking network is improved, so as to more efficiently dispatch stacking network resource.
One of ordinary skill in the art will appreciate that hardware can be passed through by realizing all or part of step of above-described embodiment
It completes, relevant hardware can also be instructed to complete by program, which can be stored in a kind of computer-readable storage
In medium, storage medium mentioned above can be read-only memory, disk or CD etc..
The foregoing is merely a prefered embodiment of the invention, is not intended to limit the invention, all in the spirit and principles in the present invention
Within, any modifications, equivalent replacements and improvements are made should all be included in the protection scope of the present invention.
Claims (10)
1. a kind of method for routing of stacking network, which is characterized in that the described method includes：
Software defined network SDN controllers obtain link-state information from each node of stacking network；
SDN controllers determine the data transfer path between Source Site and purpose website according to the link-state information；
SDN controllers generate the route selection information of the data transfer path；
The route selection information is sent to the stacking network node of the data transfer path by SDN controllers, to indicate the number
Data are handled according to the route selection information according to the stacking network node of transmission path.
2. the method as described in claim 1, which is characterized in that
The link-state information includes bandwidth, time delay or the shake of link；
The SDN controllers determine the data transfer path between Source Site and purpose website according to the link-state information
Including：SDN controllers determine that band is wider than preset value, time delay is less than between Source Site and purpose website according to link-state information
Preset value or shake are less than the data transfer path of preset value.
3. the method as described in claim 1, which is characterized in that the route selection information includes：
Data transfer path mark, the stacking network node address list of data transfer path, virtual network indicator, in website
Portion's source address, Intra-site destination address.
4. method as claimed in claim 3, which is characterized in that the stacking network node of the data transfer path is according to
Route selection information, which carries out data processing, to be included：
Stacking network node determines corresponding route selection information according to the source address and destination address of message；
Stacking network node is according to corresponding route selection information by itself stacking network node address and next-hop stacking network node
Address is packaged into outer header；
Stacking network node is according to next-hop node address in outer header, by the data forwarding with the header to next-hop
Node, until being forwarded to purpose stacking network node；
Purpose stacking network node decapsulates the data received；
Message after decapsulation is sent to the corresponding host of Intra-site destination address by purpose stacking network node.
5. method as claimed in claim 4, which is characterized in that the stacking network node will be certainly according to corresponding route selection information
Body stacking network node address is packaged into outer header with next-hop stacking network node address to be included：
According to the destination address of the inner header of data, judge whether to need to transmit data by particular path；
If desired by particular path transmit data, then according to corresponding route selection information by itself stacking network node address under
One jump stacking network node address is packaged into outer header.
6. a kind of software defined network controller, which is characterized in that including：
Data obtaining module, for obtaining link-state information from each node of stacking network；
Path determination module, for according to the link-state information, determining the data transmission between Source Site and purpose website
Path；
Information generating module, for generating the route selection information of the data transfer path；
Information sending module, for the route selection information to be sent to the stacking network node of the data transfer path, to refer to
Show that the stacking network node of the data transfer path is handled data according to the route selection information.
7. controller as claimed in claim 6, which is characterized in that
The link-state information includes bandwidth, time delay or the shake of link；
The path determination module is used for：Determine that band is wider than default between Source Site and purpose website according to link-state information
Value, time delay are less than the data transfer path of preset value or shake less than preset value.
8. controller as claimed in claim 6, which is characterized in that the route selection information includes：
Data transfer path mark, the stacking network node address list of data transfer path, virtual network indicator, in website
Portion's source address, Intra-site destination address.
9. a kind of route system of stacking network, special including stacking network node and controller as claimed in claim 8
Sign is that the stacking network node includes：
Route selection information determining module determines corresponding route selection information for the source address according to message and destination address；
Outer header package module, for being superimposed itself stacking network node address with next-hop according to corresponding route selection information
Network node address is packaged into outer header；
Data forwarding module, for according to next-hop node address in outer header, by the data forwarding with the header extremely
Next-hop node, until being forwarded to purpose stacking network node；
Message after decapsulation for being decapsulated to the data received, and is sent to mesh in website by decapsulation module
The corresponding host in address.
10. system as claimed in claim 9, which is characterized in that the outer header package module includes：
Judging unit for the destination address of the inner header according to data, judges whether to need to transmit number by particular path
According to；
Outer header encapsulation unit, then will be certainly according to corresponding route selection information for if desired transmitting data by particular path
Body stacking network node address is packaged into outer header with next-hop stacking network node address.
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| CN109889446A (en) * | 2019-03-11 | 2019-06-14 | 西安电子科技大学 | A method for determining the minimum delay path of heterogeneous converged network based on SDN |
| CN110807714A (en) * | 2019-12-09 | 2020-02-18 | 珠海格力电器股份有限公司 | Energy network and interaction method |
| CN110875913A (en) * | 2018-09-03 | 2020-03-10 | 阿里巴巴集团控股有限公司 | Data transmission method and system |
| CN111327505A (en) * | 2018-12-13 | 2020-06-23 | 中国电信股份有限公司 | Tunnel-based communication method and communication device |
| CN111385211A (en) * | 2018-12-29 | 2020-07-07 | 龙芯中科技术有限公司 | SpaceWire bus-based routing communication method and network equipment |
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| CN115118521A (en) * | 2022-07-26 | 2022-09-27 | 南京赛宁信息技术有限公司 | Method and system for selecting encrypted link nodes according to regional load balance |
| CN115118521B (en) * | 2022-07-26 | 2022-11-22 | 南京赛宁信息技术有限公司 | Method and system for selecting encrypted link nodes according to regional load balance |
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