CN112491744B - Port flow mirroring method, device and medium - Google Patents
Port flow mirroring method, device and medium Download PDFInfo
- Publication number
- CN112491744B CN112491744B CN202011268439.4A CN202011268439A CN112491744B CN 112491744 B CN112491744 B CN 112491744B CN 202011268439 A CN202011268439 A CN 202011268439A CN 112491744 B CN112491744 B CN 112491744B
- Authority
- CN
- China
- Prior art keywords
- flow
- port
- flow table
- destination port
- traffic
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 238000000034 method Methods 0.000 title claims abstract description 48
- 230000009471 action Effects 0.000 claims abstract description 22
- 238000012545 processing Methods 0.000 claims description 15
- 230000003362 replicative effect Effects 0.000 claims description 2
- 239000000126 substance Substances 0.000 claims description 2
- 230000008859 change Effects 0.000 abstract description 4
- 230000000875 corresponding effect Effects 0.000 description 19
- 230000008569 process Effects 0.000 description 13
- 238000010586 diagram Methods 0.000 description 9
- 101150080773 tap-1 gene Proteins 0.000 description 8
- 238000004590 computer program Methods 0.000 description 7
- 230000006870 function Effects 0.000 description 7
- 238000005516 engineering process Methods 0.000 description 5
- 101150011263 Tap2 gene Proteins 0.000 description 4
- 230000009286 beneficial effect Effects 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 2
- 238000004891 communication Methods 0.000 description 2
- 230000003287 optical effect Effects 0.000 description 2
- 230000001276 controlling effect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000006855 networking Effects 0.000 description 1
- 230000000750 progressive effect Effects 0.000 description 1
- 230000010076 replication Effects 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
Images
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L49/00—Packet switching elements
- H04L49/20—Support for services
- H04L49/208—Port mirroring
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L12/00—Data switching networks
- H04L12/28—Data switching networks characterised by path configuration, e.g. LAN [Local Area Networks] or WAN [Wide Area Networks]
- H04L12/46—Interconnection of networks
- H04L12/4633—Interconnection of networks using encapsulation techniques, e.g. tunneling
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L12/00—Data switching networks
- H04L12/28—Data switching networks characterised by path configuration, e.g. LAN [Local Area Networks] or WAN [Wide Area Networks]
- H04L12/46—Interconnection of networks
- H04L12/4641—Virtual LANs, VLANs, e.g. virtual private networks [VPN]
Abstract
The application discloses a port flow mirroring method, device and medium, which are applied to an SDN system, wherein the SDN system comprises a virtual switch, the virtual switch comprises a source port and a destination port, and the method comprises the following steps: determining a corresponding flow table according to the source port and the destination port, wherein an action part in the flow table carries a mirror image related instruction; determining the flow corresponding to the source port; and copying the flow through the flow table, and sending the copied flow to the destination port. The mirror image related instruction is set in the action part of the flow table, so that the mirror image operation of the flow can be completed only through the flow table in the SDN system, if the flow table is changed on the basis of the existing flow table, the corresponding function can be realized only by little change, the code is easy to realize, and the popularization and the use are easy.
Description
Technical Field
The present application relates to the field of traffic mirroring, and in particular, to a method, device, and medium for port traffic mirroring.
Background
With the development of Software Defined Networking (SDN) and cloud computing technologies, openflow flow tables are increasingly used as a very flexible forwarding tool. At present, in an SDN system, openflow flow tables are adopted in a large part of virtual network forwarding modes. However, in this scenario, the port traffic mirroring function cannot be implemented, which makes it inconvenient in some cases.
Disclosure of Invention
In order to solve the above problem, the present application provides a port traffic mirroring method, including: in an SDN system, the SDN system including a virtual switch, the virtual switch including a source port and a destination port, the method comprising: determining a corresponding flow table according to the source port and the destination port, wherein an action part in the flow table carries a mirror image related instruction; determining the flow corresponding to the source port; and copying the flow through the flow table, and sending the copied flow to the destination port.
In one example, the flow table is in the form of a group table.
In one example, determining the traffic corresponding to the source port includes: determining a flow and a flow direction corresponding to the source port, wherein the flow direction includes: an outgoing direction or an incoming direction; replicating the traffic through the flow table, including: and copying the flow through the flow table and the flow direction, wherein the corresponding processing positions in the flow table are different in different flow directions.
In one example, when the traffic direction is inbound, the processing location is an end in the flow table; and when the flow direction is the outward direction, the processing position is the initial end in the flow table.
In one example, sending the replicated traffic to the destination port includes: determining that the destination port and the source port are not in the same virtual switch; and sending the copied flow to the destination port through a vxlan tunnel, wherein the vxlan tunnel is used for connecting virtual switches corresponding to the destination port and the source port respectively.
In one example, sending the copied traffic to the destination port through a vxlan tunnel includes: sending the copied flow to a vxlan tunnel port; and adding a flow table on the vxlan tunnel port, and sending the flow to the destination port through the added flow table.
In one example, the controller of the SDN system is opendayright, and the virtual switch is openvswitch.
In one example, determining a corresponding flow table according to the source port and the destination port, where an action part in the flow table carries a mirror-related instruction, includes: according to the source port and the destination port, modifying an action part of an existing flow table to add a mirror image related instruction in the action part; and taking the modified flow table as the flow table corresponding to the source port and the destination port.
On the other hand, this application has still provided a port flow mirror image equipment, uses in the SDN system, the SDN system includes the virtual switch, the virtual switch includes source port and purpose port, the equipment includes: at least one processor; and a memory communicatively coupled to the at least one processor; wherein the memory stores instructions executable by the at least one processor to cause the at least one processor to perform the method of any one of the examples above.
In another aspect, the present application further provides a non-volatile computer storage medium of a port traffic mirror, which stores computer-executable instructions and is applied in an SDN system, where the SDN system includes a virtual switch, and the virtual switch includes a source port and a destination port, where the computer-executable instructions are configured to: a method as in any preceding example.
The port flow mirroring method provided by the application can bring the following beneficial effects:
the mirror image related instruction is set in the action part of the flow table, so that the mirror image operation of the flow can be completed only through the flow table in the SDN system, if the flow table is changed on the basis of the existing flow table, the corresponding function can be realized only by little change, the code is easy to realize, and the popularization and the use are easy.
Drawings
The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the application and together with the description serve to explain the application and not to limit the application. In the drawings:
fig. 1 is a schematic flow chart of a port traffic mirroring method in an embodiment of the present application;
fig. 2 is a schematic flow chart of traffic mirroring performed by the same virtual switch in the embodiment of the present application;
fig. 3 is a schematic flow chart of traffic mirroring performed by different virtual switches in the embodiment of the present application;
fig. 4 is a schematic diagram of a port traffic mirroring device in an embodiment of the present application.
Detailed Description
In order to make the objects, technical solutions and advantages of the present application more apparent, the technical solutions of the present application will be described in detail and completely with reference to the following specific embodiments of the present application and the accompanying drawings. It should be apparent that the described embodiments are only some of the embodiments of the present application, 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 application.
The technical solutions provided by the embodiments of the present application are described in detail below with reference to the accompanying drawings.
As shown in fig. 1, an embodiment of the present application provides a port traffic mirroring method, which is applied in an SDN system. SDN systems, Software Defined networks (Software Defined networks). In an SDN system, a plurality of virtual switches are usually provided to forward data traffic, and each virtual switch also includes a plurality of ports, where in a traffic forwarding mirroring process, an originally forwarding or forwarding port of the traffic is referred to as a source port, and a port for receiving mirrored traffic is referred to as a destination port.
In this embodiment of the present application, the virtual switch may be an openvswitch node, and the controller in the SDN system may be opendayright or the like. The opendayright is abbreviated as ODL, and is a set of community-oriented open-source framework, and has a set of modular, pluggable, and extremely flexible controllers, so that the opendayright can be deployed on any Java-supported platform. The ODL also comprises a set of module collection which can execute network tasks needing to be completed quickly. OpenvSwitch, abbreviated as OVS, is a high-quality, multi-layer virtual switch software. Its purpose is to support large-scale network automation through programming extensions while also supporting standard management interfaces and protocols. The architectural composition of the ODL and OVS will not be described herein.
As shown in fig. 1, the method includes:
s101, determining a corresponding flow table according to the source port and the destination port, wherein an action part in the flow table carries a mirror image related instruction.
In the process of mirroring traffic by the virtual switch, no matter whether the source port is the side receiving traffic or the side sending traffic, the traffic mirroring needs to be copied, and then the copied traffic is sent to the destination port. During the copying and transmitting process, the corresponding action needs to be performed through the flow table.
Specifically, the flow table refers to a flow table, which may be an openflow flow table, where openflow is a network communication protocol, belongs to a data link layer, and is capable of controlling a forwarding plane of an online switch or a router, so as to change a network path taken by a network data packet, and in the prior art, when forwarding traffic in the SDN system, the flow table is used for performing the forwarding, but in the prior art, a mirroring operation cannot be performed through the openflow flow table.
The structure of the flow table typically includes three parts, namely: header Fields (headers Fields) for packet matching, Counters (Counters) for counting the number of matching packets, and Actions (Actions) showing how the matching packets are processed. Wherein the action, i.e. action part, is used to instruct the virtual switch how to process the matched data packet after receiving it. Unlike the conventional switch forwarding table which only needs to indicate the forwarding exit port of the data packet, the virtual switch in openflow lacks the capability of a control plane, so that the processing of the matching data packet is not only simple forwarding operation, but also needs to use an action to specify the processing to be performed on the data packet by the switch. By setting the action part, the action part of the flow table can carry mirror related instructions, so that the flow table can have a mirror function to realize flow mirroring.
Of course, when establishing a flow table, one flow table may be newly created through the definition described in the above embodiment, or an action part of an existing flow table may be modified according to a source port and a destination port, so as to add a mirror-related instruction in the action part, thereby taking the modified flow table as a corresponding flow table. Here, the existing flow table refers to a flow table used in an existing device when mirroring is not performed by the method in the embodiment of the present application.
Further, the flow table may be in the form of a group table, the group table in the prior art mainly plays a role of broadcasting, and when a copy of the traffic is sent through the group table, an ALL group may be created to include ALL the target addresses and virtual switch ports, and each entry in the group table has actions to be executed for its specific copy: add VLAN, set different VLAN ID, etc. When the flow table finds the entry, the packet is forwarded to the group table, and if a virtual switch port is added or deleted in the midway, only the modification is needed in the group table without the flow table being moved.
And S102, determining the flow corresponding to the source port.
S103, copying the flow through the flow table, and sending the copied flow to the destination port.
After the preset corresponding flow table is determined, the flow corresponding to the source port, that is, the flow that needs to be mirrored in the current flow transmission process, may be received or sent by the source port, may be determined. Then, the flow can be copied through the flow table, and the copied flow is sent to the destination port, so that the process of the flow mirroring at this time is completed.
Specifically, as shown in fig. 2-3, in the actual traffic forwarding process, two situations are usually included. The first is that as shown in fig. 2, the source port (i.e. Tap1 port in fig. 2-3) and the destination port (i.e. Tap2 port in fig. 2-3) are in a virtual switch, and at this time, the flow is directly copied through the flow table and then sent to the destination port. The second is that, as shown in fig. 3, the source port and the destination port are not in the same virtual switch, and if it is determined that this is the case, the flow may be sent to the destination port through a vxlan tunnel after copying the flow in the flow table. Among them, VXLAN (Virtual eXtensible Local Area Network) is a Virtual tunnel communication technology. It is an Overlay technology, and a virtual two-layer network is built through a three-layer network. A connection is typically made between two virtual switches through a vxlan tunnel. At this time, the copied flow may be sent to a vxlan tunnel port (i.e., a Tun0 port in the figure), and then the flow table is newly added to the Tun0 port, and the flow is sent to the destination port through the newly added flow table, so that mirror flow forwarding across the virtual switch is implemented.
Further, in either of the first and second cases described above, in each case, a corresponding difference occurs in copying the traffic due to a difference in the direction of the traffic, for example, in creating the flow table, the processing position in the flow table is different for different traffic directions. As shown in fig. 2, when determining the traffic corresponding to the source port (i.e., Tap1 port), the current traffic direction is also determined. The flow direction generally includes two directions, i.e., the direction toward and the direction toward as shown in fig. 2.
The flow direction is the inlet direction: when any other port (i.e., Tap3 port) sends traffic to the Tap1 port, the virtual switch receives the traffic sent by the Tap3 port, and at this time, the traffic can be copied by the flow table to obtain two pieces of traffic, one piece of traffic is continuously sent to the Tap1, and the other piece of traffic is sent to the destination port (i.e., Tap2 port). At this time, in the process of generating the flow table, the processing position is the end in the flow table, that is, the last several flow table entries in the flow table are used to copy the traffic.
The flow direction is the outlet direction: when the Tap1 port sends traffic to the outside (i.e. Tap3 port), the traffic is copied by the flow table to obtain two pieces of traffic, and one piece of traffic continues to be sent to the Tap3 port. At this time, in the process of creating the flow table, the processing position is the start of the flow table, and the most initial flow table entries in the flow table are used to copy the traffic.
Of course, the corresponding traffic replication process is similar across virtual switches as shown in fig. 3. For example, the flow direction is incoming: when the port of Tap3 sends traffic to the port of Tap1, the traffic enters the virtual switch through the port of Tun0, the traffic is copied by the flow table, one copy is sent to the port of Tap1, and the other copy is sent to the port of Tun0, so as to be forwarded to the port of Tap2 through the port of Tun 0. The flow direction is the outlet direction: the Tap1 port sends out traffic, the flow table copies the traffic, one copy is sent to the target location (i.e. Tap3 port) to be sent through the Tun0 port, and the other copy is forwarded to the Tap2 port through the Tun0 port.
It should be noted that the port of Tap3 in fig. 2 and fig. 3 may be drawn outside the virtual switch as shown, and is represented as an external port, or may be an internal port of the virtual switch, which is not shown in the drawing, and is not described herein again.
As shown in fig. 4, an embodiment of the present application further provides a port traffic mirroring device, which is applied in an SDN system, where the SDN system includes a virtual switch, the virtual switch includes a source port and a destination port, and the device includes:
at least one processor; and the number of the first and second groups,
a memory communicatively coupled to the at least one processor; wherein the content of the first and second substances,
the memory stores instructions executable by the at least one processor to cause the at least one processor to perform a method according to any one of the embodiments described above.
An embodiment of the present application further provides a non-volatile computer storage medium of a port traffic mirror, which stores computer-executable instructions and is applied in an SDN system, where the SDN system includes a virtual switch, the virtual switch includes a source port and a destination port, and the computer-executable instructions are set to: a method as in any preceding embodiment.
The embodiments in the present application are described in a progressive manner, and the same and similar parts among the embodiments can be referred to each other, and each embodiment focuses on the differences from the other embodiments. In particular, for the device and media embodiments, the description is relatively simple as it is substantially similar to the method embodiments, and reference may be made to some descriptions of the method embodiments for relevant points.
The device and the medium provided by the embodiment of the application correspond to the method one to one, so the device and the medium also have the similar beneficial technical effects as the corresponding method, and the beneficial technical effects of the method are explained in detail above, so the beneficial technical effects of the device and the medium are not repeated herein.
As will be appreciated by one skilled in the art, embodiments of the present application may be provided as a method, system, or computer program product. Accordingly, the present application may take the form of an entirely hardware embodiment, an entirely software embodiment or an embodiment combining software and hardware aspects. Furthermore, the present application may take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, disk storage, CD-ROM, optical storage, and the like) having computer-usable program code embodied therein.
The present application is described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems), and computer program products according to embodiments of the application. It will be understood that each flow and/or block of the flow diagrams and/or block diagrams, and combinations of flows and/or blocks in the flow diagrams 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.
In a typical configuration, a computing device includes one or more processors (CPUs), input/output interfaces, network interfaces, and memory.
The memory may include forms of volatile memory in a computer readable medium, Random Access Memory (RAM) and/or non-volatile memory, such as Read Only Memory (ROM) or flash memory (flash RAM). Memory is an example of a computer-readable medium.
Computer-readable media, including both non-transitory and non-transitory, removable and non-removable media, may implement information storage by any method or technology. The information may be computer readable instructions, data structures, modules of a program, or other data. Examples of computer storage media include, but are not limited to, phase change memory (PRAM), Static Random Access Memory (SRAM), Dynamic Random Access Memory (DRAM), other types of Random Access Memory (RAM), Read Only Memory (ROM), Electrically Erasable Programmable Read Only Memory (EEPROM), flash memory or other memory technology, compact disc read only memory (CD-ROM), Digital Versatile Discs (DVD) or other optical storage, magnetic cassettes, magnetic tape magnetic disk storage or other magnetic storage devices, or any other non-transmission medium that can be used to store information that can be accessed by a computing device. As defined herein, a computer readable medium does not include a transitory computer readable medium such as a modulated data signal and a carrier wave.
It should also be noted that the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.
The above description is only an example of the present application and is not intended to limit the present application. Various modifications and changes may occur to those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application should be included in the scope of the claims of the present application.
Claims (6)
1. A port traffic mirroring method applied in an SDN system, the SDN system comprising a virtual switch, the virtual switch comprising a source port and a destination port, the method comprising:
determining a corresponding flow table according to the source port and the destination port, wherein an action part in the flow table carries a mirror image related instruction; the flow table is in a group table form;
determining the flow corresponding to the source port;
copying the flow through the flow table, and sending the copied flow to the destination port;
determining the flow corresponding to the source port, including:
determining a flow and a flow direction corresponding to the source port, wherein the flow direction includes: an outgoing direction or an incoming direction;
replicating the traffic through the flow table, including:
copying the flow through the flow table and the flow direction, wherein the corresponding processing positions in the flow table are different in different flow directions;
when the flow direction is the incoming direction, the processing position is the tail end in the flow table; when the flow direction is an outgoing direction, the processing position is a starting end in the flow table;
determining a corresponding flow table according to the source port and the destination port, wherein an action part in the flow table carries a mirror-related instruction, and the method comprises the following steps:
according to the source port and the destination port, modifying an action part of an existing flow table to add a mirror image related instruction in the action part;
and taking the modified flow table as the flow table corresponding to the source port and the destination port.
2. The method of claim 1, wherein sending the replicated traffic to the destination port comprises:
determining that the destination port and the source port are not in the same virtual switch;
and sending the copied flow to the destination port through a vxlan tunnel, wherein the vxlan tunnel is used for connecting virtual switches corresponding to the destination port and the source port respectively.
3. The method of claim 2, wherein sending the replicated traffic to the destination port through a vxlan tunnel comprises:
sending the copied flow to a vxlan tunnel port;
and adding a flow table on the vxlan tunnel port, and sending the flow to the destination port through the added flow table.
4. The method of claim 1, wherein the controller of the SDN system is opendayright and the virtual switch is openvswitch.
5. A port traffic mirroring device for use in an SDN system comprising a virtual switch comprising a source port and a destination port, the device comprising:
at least one processor; and the number of the first and second groups,
a memory communicatively coupled to the at least one processor; wherein the content of the first and second substances,
the memory stores instructions executable by the at least one processor to enable the at least one processor to perform the method of any one of claims 1-4.
6. A non-transitory computer storage medium storing computer-executable instructions for port traffic mirroring, for use in an SDN system comprising a virtual switch comprising a source port and a destination port, the computer-executable instructions configured to: the method of any one of claims 1-4.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011268439.4A CN112491744B (en) | 2020-11-13 | 2020-11-13 | Port flow mirroring method, device and medium |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011268439.4A CN112491744B (en) | 2020-11-13 | 2020-11-13 | Port flow mirroring method, device and medium |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN112491744A CN112491744A (en) | 2021-03-12 |
| CN112491744B true CN112491744B (en) | 2022-08-02 |
Family
ID=74930852
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011268439.4A Active CN112491744B (en) | 2020-11-13 | 2020-11-13 | Port flow mirroring method, device and medium |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112491744B (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104618194A (en) * | 2015-02-15 | 2015-05-13 | 杭州华三通信技术有限公司 | Software definition network message monitoring method, SDN controller and switching devices |
| CN105141677A (en) * | 2015-08-12 | 2015-12-09 | 上海斐讯数据通信技术有限公司 | Software defined network (SDN)-based mirror image method and system |
| CN108390833A (en) * | 2018-02-11 | 2018-08-10 | 北京邮电大学 | A kind of software defined network transmission control method based on virtual Domain |
| CN108429652A (en) * | 2017-02-14 | 2018-08-21 | 中兴通讯股份有限公司 | Distal end traffic mirroring control method, implementation method and relevant device based on SDN |
| CN109660443A (en) * | 2018-12-26 | 2019-04-19 | 江苏省未来网络创新研究院 | Physical equipment and virtual network communication method and system based on SDN |
| CN111913782A (en) * | 2020-07-29 | 2020-11-10 | 上海云轴信息科技有限公司 | Method and equipment for realizing virtual machine flow mirror image based on tunnel technology |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102946365B (en) * | 2012-11-09 | 2015-06-17 | 清华大学 | Flow table updating consistency maintaining method based on software defined network |
| CN103401783A (en) * | 2013-07-26 | 2013-11-20 | 盛科网络（苏州）有限公司 | Method and device for realizing Openflow multistage flow table |
| CN104767685B (en) * | 2015-04-17 | 2018-04-20 | 新华三技术有限公司 | A kind of flow forwarding method and device |
| CN105227495B (en) * | 2015-10-29 | 2018-08-21 | 北京邮电大学 | Forward rule configuration method and device for software defined network |
| CN106936609B (en) * | 2015-12-29 | 2020-10-16 | 南京中兴新软件有限责任公司 | Method for controlling forwarding equipment cluster in software defined network and controller |
-
2020
- 2020-11-13 CN CN202011268439.4A patent/CN112491744B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104618194A (en) * | 2015-02-15 | 2015-05-13 | 杭州华三通信技术有限公司 | Software definition network message monitoring method, SDN controller and switching devices |
| CN105141677A (en) * | 2015-08-12 | 2015-12-09 | 上海斐讯数据通信技术有限公司 | Software defined network (SDN)-based mirror image method and system |
| CN108429652A (en) * | 2017-02-14 | 2018-08-21 | 中兴通讯股份有限公司 | Distal end traffic mirroring control method, implementation method and relevant device based on SDN |
| CN108390833A (en) * | 2018-02-11 | 2018-08-10 | 北京邮电大学 | A kind of software defined network transmission control method based on virtual Domain |
| CN109660443A (en) * | 2018-12-26 | 2019-04-19 | 江苏省未来网络创新研究院 | Physical equipment and virtual network communication method and system based on SDN |
| CN111913782A (en) * | 2020-07-29 | 2020-11-10 | 上海云轴信息科技有限公司 | Method and equipment for realizing virtual machine flow mirror image based on tunnel technology |
Also Published As
| Publication number | Publication date |
|---|---|
| CN112491744A (en) | 2021-03-12 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US9143444B2 (en) | Virtual link aggregation extension (VLAG+) enabled in a TRILL-based fabric network | |
| EP3026861B1 (en) | Method and apparatus for processing time synchronization | |
| CN111224821B (en) | Security service deployment system, method and device | |
| CN111010329B (en) | Message transmission method and device | |
| US11716274B2 (en) | Determining node behavior in deterministic networks | |
| JP7190569B2 (en) | Data center traffic sharing method, apparatus, device and storage medium | |
| CN109660441A (en) | The method and device of multicast replication in Overlay network | |
| CN111935238A (en) | Cloud platform load balancing management system, method, equipment and medium | |
| CN111913782A (en) | Method and equipment for realizing virtual machine flow mirror image based on tunnel technology | |
| CN103631652A (en) | Method and system for achieving virtual machine migration | |
| CN109120454B (en) | QoS flow rate limiting system and method | |
| CN110636036A (en) | OpenStack cloud host network access control method based on SDN | |
| CN106250228A (en) | The method and device that virtual machine entity thermophoresis networking takes over seamlessly | |
| EP3534577B1 (en) | Forwarding multicast packets through an extended bridge | |
| JP2014116668A (en) | Communication system and network repeater | |
| US11050655B2 (en) | Route information distribution through cloud controller | |
| EP3253030B1 (en) | Method and device for reporting openflow switch capability | |
| CN112491744B (en) | Port flow mirroring method, device and medium | |
| CN115022261B (en) | Multicast table item synchronization method, equipment and medium based on stacking environment | |
| WO2016173196A1 (en) | Method and apparatus for learning address mapping relationship | |
| CN101115017A (en) | Method and device for deleting MAC address | |
| CN110661710A (en) | Message transmission method and device of virtualization system | |
| CN113472782B (en) | Method, device, equipment and storage medium for automatically changing access control configuration | |
| US20190044848A1 (en) | Virtual switching framework | |
| CN111953590B (en) | Routing table entry outlet switching method and device, electronic equipment and storage medium |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |