CN103490996A - Message processing method and device - Google Patents
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Abstract
The invention discloses a message processing method. According to the message processing method, when a message reported by a network device is received for the first time, and a controller returns the message and instructs all the network devices to process messages needing to be reported through a local service engine. Therefore, the problems, such as message delay and package loss, caused in the process that the messages are reported to the controller to be processed are solved, and the processing efficiency of network services and the practicability are optimized.
Description
Technical field
The present invention relates to communication technical field, particularly a kind of message processing method.The present invention also relates to a kind of message processor simultaneously.
Background technology
Conventional router, the network equipments such as switch, except the function of carrying out message repeating, many software functions that inside is also integrated, for example route is calculated, message safety filtering etc.Due to all new software functions in the legacy network scheme all can only waiting facilities provider realization, so it is poor to exist business resiliency, the business update cycle is long, the user is to the shortcoming such as equipment supplier's dependence is strong.
For above problem, industry has proposed network SDN(Software Defined Network, software defined network) scheme, by the network equipment is carried out to separation of software and hardware, make mainly responsible message repeating only of hardware net equipment, and the software functions such as route calculating are all completed by a network operating system independently operated on server, and realize the control to hardware net equipment by this network operating system.As a kind of concrete methods of realizing of SDN scheme, Openflow has obtained application in some scenes.
As shown in Figure 1, be the schematic diagram of Openflow network in prior art.In the Openflow scheme, network operating system is called the Openflow controller, and on each network equipment, operation Openflow agent function, set up tunnel is arranged between the two, and undertaken alternately by the Openflow agreement.The Openflow controller upwards provides the exploitation api interface, for the various application of User Exploitation oneself.
Between Openflow controller and the network equipment, mainly work in the following manner: controller issues the stream list item to the network equipment, the network equipment is preserved these stream list item information, when having message to be forwarded, at first the network equipment finds the stream list item of this message of coupling, and the network equipment is forwarded according to the rule of stream list item definition.For the message that does not find corresponding stream list item, the network equipment can be selected to abandon or message repeating is processed to controller.Controller may generate new stream list item according to message and be handed down to the network equipment, instructs the forwarding of follow-up such message, also may abandon this message.
In the Openflow scheme, as shown in Figure 2, message does not generally need to deliver to controller to the forward-path of message in this case.But in some cases, need message is further processed and just can E-Packets afterwards.For example, at IPS(Intrusion Prevention System, intrusion prevention system) in processing procedure, message need to be by depth analysis.And the Openflow network equipment carries out the limited in one's ability of this Business Processing, in this case message need to by send controller to process, the forward-path of concrete message is as shown in figure tetra-, message carries out one or many alternately between the equipment and control device.
In the situation that equipment scale is less, it is also not obvious that literary composition to the controller of above delivering newspaper is processed the facility load caused, because near distance between the Openflow network equipment and controller connects bandwidth very large.Even message is processed by controller, can not cause too large time delay or packet loss yet.Yet, in the wide area network scene, controller and data center are distant, bandwidth between the two is more limited in most cases.If a large amount of message up sending controllers carries out Business Processing, may cause message transmitting time delay excessive, the serious problems such as packet loss.
Summary of the invention
For solving in prior art because of problems such as the caused message delay of Business Processing, packet losses, the present invention proposes a kind of message processing method, described method is applied to comprise in the local Openflow network system of controller, the network equipment and local service engine, the described network equipment and described local service engine interconnect by designated port, also comprise:
When receiving first the message that the described network equipment reports, described controller is back to the described network equipment by described message, and the message that indication all-network equipment reports needs by described local service engine is processed.
Correspondingly, the invention allows for a kind of controller, described controller is applied to comprise in the local Openflow network system of the network equipment and local service engine, comprises:
Interface module, the message reported for receiving the described network equipment, and, when receiving first the message that the described network equipment reports, described message is back to the described network equipment;
Processing module, when receiving first the message that the described network equipment reports in described interface module, the message that indication all-network equipment reports needs by described local service engine is processed;
Wherein, the described network equipment and described local service engine interconnect by designated port.
By applying above technical scheme, when receiving first the message that the network equipment reports, the message that controller returns to this message and indicates all-network equipment by described local service engine, needs to be reported is processed, thereby avoided message upper send the process that controller processes in the problems such as contingent message delay, packet loss, make the treatment effeciency of Network and practicality obtain optimization.
The accompanying drawing explanation
The application scenarios schematic diagram that Fig. 1 is Openflow network in prior art;
Fig. 2 is message forwarding path schematic diagram in existing Openflow scheme;
Fig. 3 is advanced treating message forwarding path schematic diagram in existing Openflow scheme;
The schematic flow sheet that Fig. 4 is a kind of message processing method of proposing of the present invention;
The schematic flow sheet that Fig. 5 is a kind of message processing method of proposing of the specific embodiment of the invention;
Fig. 6 is the Openflow scheme advanced treating message forwarding path schematic diagram that the specific embodiment of the invention proposes;
The structural representation that Fig. 7 is a kind of controller of proposing of the present invention.
Embodiment
As stated in the Background Art, under the wide area network scene, by a large amount of message up sending controllers, processing the packet loss caused, the problems such as delay.The present invention proposes a kind of message processing method, in order to solve because of problems such as the caused message delay of Business Processing, packet losses, thereby optimized the Business Processing efficiency in the existing network.Particularly, the method is applied to comprise that in the local Openflow network system of controller, the network equipment and local service engine, wherein the network equipment and local service engine interconnect by designated port, as shown in Figure 4, comprise the following steps:
S401, when receiving first the message that the described network equipment reports, described controller is back to the described network equipment by described message, and the message that indication all-network equipment reports needs by described local service engine is processed.
The present invention sets up the local service engine on the basis of existing network framework, and this local service engine may operate on a station server, and puts together with the network equipment in the Openflow network, and dedicated bandwidth connects.After introducing this engine, originally need to send the message that controller carries out Business Processing can be transmitted to this engine processing, after engine is finished dealing with, then sent back to the network equipment, carried out follow-up processing., and connect with high-speed link together with network equipment physical location due to the local service engine, can not cause because of the Business Processing to message extra delay or packet loss.
Particularly, when receiving first the message that the described network equipment reports, controller issues the stream list item, this stream list item is used to indicate the message that the described network equipment reports described needs and is sent to described local service engine by described designated port, and the message that will return from described designated port is forwarded; And, in order to guarantee the function of follow-up proper communication and implementation controller, the present invention arranges the local service engine and carries out transfer of data by setting up tunnel and the described network equipment, and utilize Echo to be surveyed network connection and equipment availability.
In addition, after controller receives the message that the described network equipment reports first, also need the state of designated port is detected: if the state of described designated port is available, described controller is back to the described network equipment by described message, and the message that indication all-network equipment reports needs by described local service engine is processed; If the state of described designated port is unavailable, described controller is processed the described message reported.
Concrete, controller judges that whether described local service engine is available in the following manner:
Controller judges whether the described network equipment exists described designated port;
If there is described designated port in the described network equipment, and the connecting link between described designated port and described local service engine is normal, and described controller determines that the state of described designated port is available;
There is not described designated port in the described network equipment, and the connecting link between described designated port and described local service engine is abnormal, and described controller determines that the state of described designated port is unavailable.
It is to be noted, whether the local service engine proposed in the present invention can need to safeguard the data such as Global Topological according to the actual conditions selection, for example, because the realization of local service engine major function (carrying out the IPS processing) only needs to safeguard the local service data, (IPS feature database is for example attacked and virus etc. for identifying) gets final product.Thereby the local service engine optionally carries out cycle data with controller and synchronizes.
In order further to set forth technological thought of the present invention, now in conjunction with concrete application scenarios, technical scheme of the present invention is described, as described in Figure 5, the schematic flow sheet of a kind of message processing method proposed for the specific embodiment of the invention, its corresponding Openflow scheme advanced treating message forwarding path schematic diagram as shown in Figure 5, comprises the following steps:
S501, controller receives first from the network equipment and needs message to be processed.
S502, controller is looked into and is seen if there is the local service engine and can use, if go to S504, goes to if not S503.
In this specific embodiment, by in the normalized definition of Openflow for reserved port(reserved port) increase a kind of port of LOCAL_ENGINE type, the port comparing class of this port and controller type seemingly, belongs to more special Openflow port.The network equipment is connected with the local service engine by this port, but, for fear of because of the introducing of local service engine, affecting the original topology of network, this link is not reflected on the network topology of Openflow.
When the port status of controller requester network equipment, controller need to be confirmed whether to exist the LOCAL_ENINGE port, and this port up whether.If this port up, controller will think that this local service engine can use; Correspondingly, when the network equipment find the local service engine or connecting link unavailable, just the state of LOCAL_ENGINE port is set to down.
S503, controller does not carry out further Business Processing, and this message is beamed back to the network equipment.
S504, controller issues the stream list item.
Concrete, controller issues two stream list items, and one for instructing this message and subsequent packet all can be forwarded the LOCAL_ENGINE port, another is processed for instructing through the local service engine, the message returned from LOCAL_ENGINE, carry out follow-up forwarding, leaves this equipment.
S505, the network equipment and local service engine are according to flowing list item to reporting message to be processed.
In local service engine scheme, after subsequent packet arrives, according to the stream list item, directly be forwarded to the LOCAL_ENINGE port, process to the local service engine, the message of handling, return to meeting from the LOCAL_ENINGE port, according to the stream list item of coupling, carry out follow-up forwarding.Data exchange ways between the network equipment and local service engine, use Packet-in and Packet-out message between controller and the network equipment.
Wherein, the local service engine only need to be realized the building tunnel function of controller, for the network equipment, transmitting data, and the Echo function, for having surveyed the availability of network connection and equipment.
It should be noted that, in the present invention, the local service engine also needs to support Openflow Packet-out message, for the message by after processing, sends back to the network equipment.Simultaneously, the network equipment need to support to use Openflow Packet-in message that message is sent to the local service engine by the LOCAL_ENGINE port.
S506, controller carries out subsequent treatment to the message reported.
For reaching above technical purpose, as shown in Figure 7, the invention allows for a kind of controller, described controller is applied to comprise in the local Openflow network system of the network equipment and local service engine, comprises:
Wherein, the described network equipment and described local service engine interconnect by designated port.
In concrete application scenarios, described processing module 720, specifically for issuing the stream list item, described stream list item is used to indicate the message that the described network equipment reports described needs and is sent to described local service engine by described designated port, and the message that will return from described designated port is forwarded.
In concrete application scenarios, also comprise:
If the state of described designated port is available, described controller is back to the described network equipment by described message, and the message that indication all-network equipment reports needs by described local service engine is processed;
If the state of described designated port is unavailable, described controller is processed the described message reported.
In concrete application scenarios, described detection module 730, specifically for:
Judge whether the described network equipment exists described designated port;
If there is described designated port in the described network equipment, and the connecting link between described designated port and described local service engine is normal, and described detection module 730 determines that the state of described designated port is available;
There is not described designated port in the described network equipment, and the connecting link between described designated port and described local service engine is abnormal, and described detection module 730 determines that the state of described designated port is unavailable.
In concrete application scenarios, described designated port is the LOCAL_ENGINE port.
As can be seen here, by applying above technical scheme, when receiving first the message that the network equipment reports, the message that controller returns to this message and indicates all-network equipment by described local service engine, needs to be reported is processed, thereby avoided message upper send the process that controller processes in the problems such as contingent message delay, packet loss, make the treatment effeciency of Network and practicality obtain optimization.
Through the above description of the embodiments, those skilled in the art can be well understood to the present invention and can realize by hardware, and the mode that also can add necessary general hardware platform by software realizes.Understanding based on such, technical scheme of the present invention can embody with the form of software product, it (can be CD-ROM that this software product can be stored in a non-volatile memory medium, USB flash disk, portable hard drive etc.) in, comprise some instructions with so that computer equipment (can be personal computer, server, or the network equipment etc.) each implements the described method of scene to carry out the present invention.
It will be appreciated by those skilled in the art that accompanying drawing is a schematic diagram of preferably implementing scene, the module in accompanying drawing or flow process might not be that enforcement the present invention is necessary.
It will be appreciated by those skilled in the art that the module in the device of implementing in scene can be distributed in the device of implementing scene according to implementing scene description, also can carry out respective change and be arranged in the one or more devices that are different from this enforcement scene.The module of above-mentioned enforcement scene can be merged into a module, also can further split into a plurality of submodules.
The invention described above sequence number, just to describing, does not represent the quality of implementing scene.
Above disclosed be only several concrete enforcement scene of the present invention, still, the present invention is not limited thereto, the changes that any person skilled in the art can think of all should fall into protection scope of the present invention.
Claims (10)
1. a message processing method, it is characterized in that, described method is applied to comprise that, in the Openflow network system of controller, the network equipment and local service engine, the described network equipment and described local service engine interconnect by designated port, also comprise:
When receiving first the message that the described network equipment reports, described controller is back to the described network equipment by described message, and the message that indication all-network equipment reports needs by described local service engine is processed.
2. the method for claim 1, is characterized in that, the message that described controller indication all-network equipment reports needs by described local service engine is processed, and is specially:
Described controller issues the stream list item, and described stream list item is used to indicate the message that the described network equipment reports described needs and is sent to described local service engine by described designated port, and the message that will return from described designated port is forwarded;
Wherein, described local service engine is by setting up tunnel and the described network equipment carries out transfer of data, and utilizes Echo to connect network and equipment availability is surveyed.
3. method as claimed in claim 2, is characterized in that, described controller, after receiving first the message that the described network equipment reports, also comprises:
Described controller is detected the state of described designated port;
If the state of described designated port is available, described controller is back to the described network equipment by described message, and the message that indication all-network equipment reports needs by described local service engine is processed;
If the state of described designated port is unavailable, described controller is processed the described message reported.
4. method as claimed in claim 3, is characterized in that, described controller is detected the state of described designated port, is specially:
Described controller judges whether the described network equipment exists described designated port;
If there is described designated port in the described network equipment, and the connecting link between described designated port and described local service engine is normal, and described controller determines that the state of described designated port is available;
There is not described designated port in the described network equipment, and the connecting link between described designated port and described local service engine is abnormal, and described controller determines that the state of described designated port is unavailable.
5. as the described method of claim 1-4 any one, it is characterized in that, described designated port is the LOCAL_ENGINE port, and the described network equipment and described local service engine carry out exchanges data by Packet-in and Packet-out message.
6. a controller, is characterized in that, described controller is applied to comprise in the local Openflow network system of the network equipment and local service engine, comprises:
Interface module, the message reported for receiving the described network equipment, and, when receiving first the message that the described network equipment reports, described message is back to the described network equipment;
Processing module, when receiving first the message that the described network equipment reports in described interface module, the message that indication all-network equipment reports needs by described local service engine is processed;
Wherein, the described network equipment and described local service engine interconnect by designated port.
7. controller as claimed in claim 6, is characterized in that,
Described processing module, specifically for issuing the stream list item, described stream list item is used to indicate the message that the described network equipment reports described needs and is sent to described local service engine by described designated port, and the message that will return from described designated port is forwarded.
8. controller as claimed in claim 7, is characterized in that, also comprises:
Detection module, for receive first the message that the described network equipment reports in described interface module after, detected the state of described designated port;
If the state of described designated port is available, described controller is back to the described network equipment by described message, and the message that indication all-network equipment reports needs by described local service engine is processed;
If the state of described designated port is unavailable, described controller is processed the described message reported.
9. controller as claimed in claim 8, is characterized in that, described detection module, specifically for:
Judge whether the described network equipment exists described designated port;
If there is described designated port in the described network equipment, and the connecting link between described designated port and described local service engine is normal, and described detection module determines that the state of described designated port is available;
There is not described designated port in the described network equipment, and the connecting link between described designated port and described local service engine is abnormal, and described detection module determines that the state of described designated port is unavailable.
10. as the described controller of claim 6-9 any one, it is characterized in that, described designated port is the LOCAL_ENGINE port.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310450919.6A CN103490996B (en) | 2013-09-27 | A kind of message processing method and equipment |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310450919.6A CN103490996B (en) | 2013-09-27 | A kind of message processing method and equipment |
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| CN103490996A true CN103490996A (en) | 2014-01-01 |
| CN103490996B CN103490996B (en) | 2016-11-30 |
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| CN104243270A (en) * | 2014-09-25 | 2014-12-24 | 杭州华三通信技术有限公司 | Tunnel setup method and tunnel setup device |
| CN104811393A (en) * | 2014-01-27 | 2015-07-29 | 中兴通讯股份有限公司 | Multicasting message duplicating handling method and device and open flow controller (OFC) |
| CN105450495A (en) * | 2014-09-18 | 2016-03-30 | 中国电信股份有限公司 | Method, device and system for re-establishing secure communication channel |
| CN109644158A (en) * | 2016-06-01 | 2019-04-16 | 华为技术有限公司 | Distinguish the software defined network system of message inbound message |
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| CN109644158B (en) * | 2016-06-01 | 2020-12-25 | 华为技术有限公司 | Software defined network system for distinguishing message entering message |
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