CN107547440A - A kind of SDN controllers message queue management method and system - Google Patents
A kind of SDN controllers message queue management method and system Download PDFInfo
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- CN107547440A CN107547440A CN201610485519.2A CN201610485519A CN107547440A CN 107547440 A CN107547440 A CN 107547440A CN 201610485519 A CN201610485519 A CN 201610485519A CN 107547440 A CN107547440 A CN 107547440A
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Abstract
The present invention provides a kind of SDN controllers message queue management method and system.The SDN controllers message queue management method includes：The SDN controllers are divided at least two message queues according to type of message, and each type of message can only belong to a message queue；It is that the message establishes a corresponding Handler according to the characteristic information of a message, the characteristic information of the message includes type of message；The SDN controllers receive message, and the Handler according to corresponding to determining the characteristic information of message, call the add_msg interfaces of the Handler that the message is encapsulated and is added in the message queue；Packed message is taken out from the message queue, and calls the msg_handler interfaces of Handler corresponding to the packed message to handle the packed message.The invention enables the Message Processing of SDN controllers is more flexible.
Description
Technical field
The present invention relates to a kind of technical field of the computer network, more particularly to a kind of SDN controllers message queue management method and
System.
Background technology
With the raising of terminal calculating disposal ability, the expansion of network capacity, the information that network is carried drastically expands, mutually
Networking is no longer the network for the purpose of communication merely, but more towards meeting that people obtain the direction of information requirement and develop,
As the platform of an information carrying and distribution.Due to people to information acquiring pattern (wired, mobile), information type (data,
Speech, video), information quality, information security etc. multiple demands are presented, so internet is in order to adapt to and meet all kinds of need
Ask and constantly introduce substantial amounts of control protocol, form a huge control plane.These control protocols depend on from design
Specific retransmission protocol, and it is technical from realizing, and control plane and Forwarding plane are all run in the network device, to network
The extension of function and the management of network bring huge challenge, and traditional network architecture can not increasingly meet current enterprise, operation
Business and the demand of user.
Based on this background, the network of SDN software definitions is suggested and is used as an important part for software definition data center.SDN
(software defined network) is a kind of new network architecture, and its design concept is to put down network-based control plane with data forwarding
Face is separated, and supports the network state of centralization to control, and realizes bottom-layer network facility to the transparent of upper layer application.SDN has
Flexible program capability so that the automatic management of network and control ability obtain unprecedented lifting, can efficiently solve current
The resource extent extension that network is faced is limited, and networking flexibility is poor, it is difficult to quick the problems such as meeting business demand.Software definition
Network is a kind of new network of Emulex network innovation framework, and its core technology is passed through by the way that network equipment chain of command is separated with data surface
Software program is configured flexibly network function so that the automatic management of network and control ability obtain unprecedented lifting, so as to real
The flexible control of network traffics is showed, the innovation for core network and application provides good platform, can effectively solve current net
The extension of resource extent that network system is faced is limited, networking flexibility is poor, the problems such as being difficult to quickly meet business demand, is easy to net
Network upgrades and adapted to the demand of various new business.SDN controllers are responsible for the control plane of whole network, accept physical network and
Upper layer application.In the market manufacturer, the controller increased income is big and small tens kinds, but the message team of these controllers
Uncontrollable, underaction is arranged, autgmentability is not good enough.The solution of existing most of SDN controllers is generally all using solid
Fixed SMS queue's pattern, lining up mode can not adjust, it is impossible to do special queue arrangement to some single message.
In consideration of it, how to find a kind of preferably SDN controller message queues Managed Solution just into those skilled in the art urgently
Solve the problems, such as.
The content of the invention
In view of the above the shortcomings that prior art, it is an object of the invention to provide a kind of SDN controllers message queue manager
Method and system, for solution, SDN controllers species is more in the prior art, and the message queue of controller is uncontrollable, underaction,
The imperfect problem of autgmentability.
In order to achieve the above objects and other related objects, the present invention provides a kind of SDN controllers message queue management method, described
SDN controller message queue management methods include：The SDN controllers are divided at least two message teams according to type of message
Row, each type of message can only belong to a message queue；It is that the message establishes one according to the characteristic information of a message
Corresponding Handler, the characteristic information of the message include type of message；The Handler include add_msg interfaces and
Msg_handler interfaces；Wherein, add_msg interfaces are used to receive message and encapsulate the message and be added to the message team
In row；Msg_handler interfaces are used to handle the message；The SDN controllers receive message, and according to message
The characteristic information determine corresponding to Handler, call the add_msg interfaces of the Handler that the message is encapsulated and is added to
In the message queue；Packed message is taken out from the message queue, and is called corresponding to the packed message
Handler msg_handler interfaces are handled the packed message.
Alternatively, the message and corresponding Handler use login mechanism management, using the characteristic information of the message as key
Word, registered using corresponding Handler as value.
Alternatively, the corresponding independent thread pool of each message queue, the packed message in the message queue is by institute
State thread pool processing.
Alternatively, the message queue includes subqueue, and message is with protocol subtypes either message destination address or self-defined word
Duan Zuowei keywords are distinguished to be encapsulated into different subqueues.
Alternatively, the packed message has an identical encapsulating structure, the encapsulating structure include message body, protocol version,
Type of message and corresponding Handler.
Alternatively, the characteristic information also includes protocol version.
Alternatively, a message queue includes a variety of type of messages.
Alternatively, the message is OpenFlow message.
Alternatively, the SDN controllers receive message with EPOLL patterns.
The present invention provides a kind of SDN controllers message queue management system, the SDN controllers message queue management system bag
Include：Message Processing setting module, for being divided at least two message queues according to type of message, each type of message can only
Belong to a message queue；One corresponding Handler, the characteristic information of the message are established according to the characteristic information of a message
Including type of message；The Handler includes add_msg interfaces and msg_handler interfaces；Wherein, add_msg interfaces are used
In reception message and the message is encapsulated and is added in the message queue；Msg_handler interfaces are used to enter the message
Row processing；Message reception module, for receiving message, and the Handler according to corresponding to determining the characteristic information of message, call institute
The message is encapsulated and is added in the message queue by the add_msg interfaces for stating Handler；Message processing module, it is used for
Packed message is taken out from the message queue, and calls Handler corresponding to the packed message
Msg_handler interfaces are handled the packed message.
Alternatively, the message and corresponding Handler use login mechanism management, using the characteristic information of the message as key
Word, registered using corresponding Handler as value.
Alternatively, the corresponding independent thread pool of each message queue, the packed message in the message queue is by institute
State thread pool processing.
Alternatively, the message queue includes subqueue, and message is with protocol subtypes either message destination address or self-defined word
Duan Zuowei keywords are distinguished to be encapsulated into different subqueues.
Alternatively, the packed message has an identical encapsulating structure, the encapsulating structure include message body, protocol version,
Type of message and corresponding Handler.
Alternatively, the characteristic information also includes protocol version.
Alternatively, a message queue includes a variety of type of messages.
Alternatively, the message is OpenFlow message.
Alternatively, the SDN controllers receive message with EPOLL patterns.
As described above, a kind of the SDN controllers message queue management method and system of the present invention, have the advantages that：
The relation of Handler and message queue can be controlled flexibly, not be changeless, and same class message may map to same queue,
Different classes of message may map to different queues；Message how the fully controllable system of enqueue, how message handles also complete
It is controllable.It is flexibly controllable also, protocol message uses login mechanism with specific Message Processing Handler, only registration it can need
Protocol message to be processed.Therefore so that the Message Processing of SDN controllers is more flexible, has high maintainable and high extension
Property.
Brief description of the drawings
Fig. 1 is shown as the schematic flow sheet of an embodiment of the SDN controller message queue management methods of the present invention.
Fig. 2 is shown as the module diagram of an embodiment of the SDN controller message queue management systems of the present invention.
Fig. 3 is shown as the operation principle schematic diagram of an embodiment of the SDN controller message queue management systems of the present invention.
Component label instructions
1 SDN controller message queue management systems
11 Message Processing setting modules
12 message reception modules
13 message processing modules
S1~S3 steps
Embodiment
Illustrate embodiments of the present invention below by way of specific instantiation, those skilled in the art can be as disclosed by this specification
Content understand easily the present invention other advantages and effect.The present invention can also add by way of a different and different embodiment
To implement or apply, the various details in this specification can also be based on different viewpoints and application, in the essence without departing from the present invention
God is lower to carry out various modifications or alterations.
It should be noted that the diagram provided in the present embodiment only illustrates the basic conception of the present invention, then schema in a schematic way
In only display drawn with relevant component in the present invention rather than according to component count, shape and the size during actual implement, its reality
The kenel of each component, quantity and ratio can be a kind of random change during implementation, and its assembly layout kenel may also be increasingly complex.
The present invention provides a kind of SDN controllers message queue management method.In one embodiment, it is as shown in figure 1, described
SDN controller message queue management methods include：
Step S1, the SDN controllers are divided at least two message queues according to type of message, and each type of message is only
A message queue can be belonged to；It is that the message establishes a corresponding Handler according to the characteristic information of a message, it is described to disappear
The characteristic information of breath includes type of message；The Handler includes add_msg interfaces and msg_handler interfaces；Wherein,
Add_msg interfaces are used to receive message and the message is encapsulated and is added in the message queue；Msg_handler interfaces are used
Handled in the message.In one embodiment, the characteristic information also includes protocol version.In one embodiment,
The message and corresponding Handler use login mechanism management, using the characteristic information of the message as keyword, with corresponding
Handler is that value is registered.Protocol message uses login mechanism with specific Message Processing Handler, flexibly controllable, can be only
Registration needs protocol message to be processed.In one embodiment, the corresponding independent thread pool of each message queue, it is described
Packed message in message queue is handled by the thread pool.The thread pool of each message queue is separate, does not interfere with each other,
Greatly improve the concurrency of Message Processing.The message queue includes subqueue, and message is with protocol subtypes or message purpose
Address or custom field are distinguished to be encapsulated into different subqueues as keyword.In one embodiment, the quilt
The message of encapsulation has an identical encapsulating structure, and the encapsulating structure includes message body, protocol version, type of message and correspondingly
Handler.In one embodiment, a message queue includes a variety of type of messages.
Step S2, the SDN controllers receive message, and the Handler according to corresponding to determining the characteristic information of message, called
The message is encapsulated and is added in the message queue by the add_msg interfaces of the Handler.In one embodiment,
The message queue includes subqueue, and the add_msg interfaces of the Handler are by message with protocol subtypes or message purpose
Address or custom field are distinguished to be encapsulated into different subqueues as keyword.The message disappears for OpenFlow
Breath.In one embodiment, the SDN controllers receive message with EPOLL patterns.EPOLL is carried in 2.6 kernels
Go out, the enhancing version of select and poll before being.For select and poll, EPOLL is more flexible, does not have
It is described symbol limitation.EPOLL manages multiple descriptors using a filec descriptor, by the thing of the filec descriptor of customer relationship
Part is stored in an event table of kernel, is so only needed once in the copy of user's space and kernel spacing.
Step S3, packed message is taken out from the message queue, and call Handler corresponding to the packed message
Msg_handler interfaces the packed message is handled.In one embodiment, each thread pool is respectively from right
Message (CMsg) is obtained in the message queue (Queue) answered, then the Handler of association is obtained from CMsg, finally by
Handler msg_handler interfaces handle message.Each Queue thread pool is separate, does not interfere with each other, and greatly carries
The high concurrency of Message Processing.
The present invention provides a kind of SDN controllers message queue management system, the SDN controllers message queue management system energy
Enough apply SDN controllers message queue management method as described above.In one embodiment, as shown in Fig. 2 the SDN
Controller message queue management system 1 includes Message Processing setting module 11, message reception module 12 and message processing module
13.Wherein：
Message Processing setting module 11 is used to be divided at least two message queues according to type of message, and each type of message can only
Belong to a message queue；One corresponding Handler, the characteristic information of the message are established according to the characteristic information of a message
Including type of message；The Handler includes add_msg interfaces and msg_handler interfaces；Wherein, add_msg interfaces are used
In reception message and the message is encapsulated and is added in the message queue；Msg_handler interfaces are used to enter the message
Row processing.In one embodiment, the characteristic information also includes protocol version.In one embodiment, the message and right
The Handler answered uses login mechanism management, using the characteristic information of the message as keyword, using corresponding Handler as be worth into
Row registration.Protocol message uses login mechanism with specific Message Processing Handler, flexibly controllable, only registration can need to handle
Protocol message.In one embodiment, the corresponding independent thread pool of each message queue, in the message queue
Packed message is handled by the thread pool.The thread pool of each message queue is separate, does not interfere with each other, and greatly improves
The concurrency of Message Processing.The message queue includes subqueue, message with protocol subtypes either message destination address or from
Field is defined as keyword to distinguish to be encapsulated into different subqueues.In one embodiment, the packed message
With identical encapsulating structure, the encapsulating structure includes message body, protocol version, type of message and corresponding Handler.
In one embodiment, a message queue includes a variety of type of messages.
Message reception module 12 is connected with Message Processing setting module 11, for receiving message, and according to the characteristic information of message
It is determined that corresponding Handler, calls the add_msg interfaces of the Handler to encapsulate the message and be added to the message team
In row.In one embodiment, the message queue includes subqueue, the add_msg interfaces of the Handler by message with
Protocol subtypes either as keyword distinguish to be encapsulated into different subqueues by message destination address or custom field.
The message is OpenFlow message.In one embodiment, the message reception module 12 is received with EPOLL patterns and disappeared
Breath.EPOLL proposes in 2.6 kernels, the enhancing version of select and poll before being.Relative to select and poll
For, EPOLL is more flexible, is limited without descriptor.EPOLL manages multiple descriptors using a filec descriptor,
The event of the filec descriptor of customer relationship is stored in an event table of kernel, so in user's space and kernel spacing
Copy is only needed once.
Message processing module 13 is connected with message reception module 12, for taking out packed message from the message queue,
And the msg_handler interfaces of Handler corresponding to the packed message are called to handle the packed message.
In one embodiment, each thread pool obtains message (CMsg) from the corresponding message queue (Queue) respectively, then from
The Handler of association is obtained in CMsg, message is handled finally by Handler msg_handler interfaces.Each Queue
Thread pool it is separate, do not interfere with each other, greatly improve the concurrency of Message Processing.
In one embodiment, an embodiment of the SDN controllers message queue management system operation principle as shown in figure 3,
Its specific job step can include：
Step 1, start SDN controllers, associate the mapping relations between Handler and Queue first.OF_PacketIn
Message is that SDN controllers need to handle most message, therefore OF_PacketIn Handler can individually distribute a Queue；
Other OpenFlow message (such as OF_HELLO_Handler message) can then distribute a Queue altogether.Registration with
Protocol version+type of message of message is registered as KEY using Handler as VALUE.
Step 2：Formulate Queue (message queue) and thread pool incidence relation.Each Queue is owned by what oneself had
Handle thread pool.Queue corresponds with thread pool, avoids because single kind of message excessively causes other message to have little time
The situation of processing.
Step 3：Message processing module needs to need OpenFlow type of messages to be processed and its correspondingly to message reception module registration
Handler.
Step 4：Start the thread pool of each Queue associations.
Step 5：Initiation message receiving module opens EPOLL patterns and receives OpenFlow message.
Step 6：After message reception module receives message, the protocol version and type of message of message are analyzed first, with agreement version
Sheet+type of message removes registered Handler corresponding to acquisition as KEY, as corresponding Handler is not present, then illustrates
This message is unregistered, directly abandons.Different OpenFlow message can be divided into different Queue.
Step 7：Message reception module encapsulation messages are unified fixed structure CMsg, the structure include message body, protocol version,
Type of message and corresponding Handler.
Step 8：Message reception module places message to specified Queue using Handler add_msg interfaces.Add_msg connects
Mouthful by specific OpenFlow protocol processes Handler realize, for inform the species OpenFlow message how enqueue.
Same Queue can also be divided into smaller subqueue.Be one inside each Queue is with (KEY, VALUE)
The multiqueuing system of structure, using protocol subtypes, either message destination address or custom field as KEY, are made with subqueue
For VALUE.
Step 9：Each thread pool obtains CMsg (packed message) from corresponding Queue respectively, then from CMsg
The Handler of association is obtained, message is handled finally by Handler msg_handler interfaces.Each Queue thread
Pond is separate, does not interfere with each other, and greatly improves the concurrency of Message Processing.
In summary, a kind of SDN controllers message queue management method and system of the invention, have the advantages that：
The relation of Handler and message queue can be controlled flexibly, not be changeless, and same class message may map to same queue,
Different classes of message may map to different queues；Message how the fully controllable system of enqueue, how message handles also complete
It is controllable.It is flexibly controllable also, protocol message uses login mechanism with specific Message Processing Handler, only registration it can need
Protocol message to be processed.Therefore so that the Message Processing of SDN controllers is more flexible, has high maintainable and high extension
Property.So the present invention effectively overcomes various shortcoming of the prior art and has high industrial utilization.
The above-described embodiments merely illustrate the principles and effects of the present invention, not for the limitation present invention.It is any to be familiar with this skill
The personage of art all can carry out modifications and changes under the spirit and scope without prejudice to the present invention to above-described embodiment.Therefore, such as
Those of ordinary skill in the art without departing from disclosed spirit with completed under technological thought all etc.
Modifications and changes are imitated, should be covered by the claim of the present invention.
Claims (12)
- A kind of 1. SDN controllers message queue management method, it is characterised in that the SDN controllers message queue management method bag Include：The SDN controllers are divided at least two message queues according to type of message, and each type of message can only belong to One message queue；It is that the message establishes a corresponding Handler according to the characteristic information of a message, the message The characteristic information includes type of message；The Handler includes add_msg interfaces and msg_handler interfaces；Wherein, add_msg Interface is used to receive message and the message is encapsulated and is added in the message queue；Msg_handler interfaces are used for institute Message is stated to be handled；The SDN controllers receive message, and the Handler according to corresponding to determining the characteristic information of message, described in calling The message is encapsulated and is added in the message queue by Handler add_msg interfaces；Packed message is taken out from the message queue, and calls Handler corresponding to the packed message Msg_handler interfaces are handled the packed message.
- 2. SDN controllers message queue management method according to claim 1, it is characterised in that：The message and corresponding Handler uses login mechanism management, using the characteristic information of the message as keyword, using corresponding Handler as be worth into Row registration.
- 3. SDN controllers message queue management method according to claim 1, it is characterised in that：Each message queue pair Answer an independent thread pool, the packed message in the message queue is handled by the thread pool.
- 4. SDN controllers message queue management method according to claim 1, it is characterised in that：The message queue includes Subqueue, message using protocol subtypes, either as keyword distinguish to be encapsulated into by message destination address or custom field In different subqueues.
- 5. SDN controllers message queue management method according to claim 1, it is characterised in that：The packed message With identical encapsulating structure, the encapsulating structure includes message body, protocol version, type of message and corresponding Handler.
- 6. SDN controllers message queue management method according to claim 1, it is characterised in that：The characteristic information also wraps Include protocol version.
- A kind of 7. SDN controllers message queue management system, it is characterised in that：The SDN controllers message queue management system bag Include：Message Processing setting module, for being divided at least two message queues according to type of message, each type of message is only A message queue can be belonged to；One corresponding Handler, the message of the message are established according to the characteristic information of a message Feature includes type of message；The Handler includes add_msg interfaces and msg_handler interfaces；Wherein, add_msg Interface is used to receive message and the message is encapsulated and is added in the message queue；Msg_handler interfaces are used for institute Message is stated to be handled；Message reception module, for receiving message, and the Handler according to corresponding to determining the characteristic information of message, call institute The message is encapsulated and is added in the message queue by the add_msg interfaces for stating Handler；Message processing module, for taking out packed message from the message queue, and call the packed message Corresponding Handler msg_handler interfaces are handled the packed message.
- 8. SDN controllers message queue management system according to claim 7, it is characterised in that：The message and corresponding Handler uses login mechanism management, using the characteristic information of the message as keyword, using corresponding Handler as be worth into Row registration.
- 9. SDN controllers message queue management system according to claim 7, it is characterised in that：Each message queue pair Answer an independent thread pool, the packed message in the message queue is handled by the thread pool.
- 10. SDN controllers message queue management system according to claim 7, it is characterised in that：The message queue includes Subqueue, message using protocol subtypes, either as keyword distinguish to be encapsulated into by message destination address or custom field In different subqueues.
- 11. SDN controllers message queue management system according to claim 7, it is characterised in that：The packed message With identical encapsulating structure, the encapsulating structure includes message body, protocol version, type of message and corresponding Handler.
- 12. SDN controllers message queue management system according to claim 7, it is characterised in that：The characteristic information also wraps Include protocol version.
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| CN109450941A (en) * | 2018-12-25 | 2019-03-08 | 安捷光通科技成都有限公司 | A kind of SDN controller message dispatching method of anti-DDoS |
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