CN104412560A - SDN-based network configuration method, apparatus and system - Google Patents

SDN-based network configuration method, apparatus and system Download PDF

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Publication number
CN104412560A
CN104412560A CN201380035267.8A CN201380035267A CN104412560A CN 104412560 A CN104412560 A CN 104412560A CN 201380035267 A CN201380035267 A CN 201380035267A CN 104412560 A CN104412560 A CN 104412560A
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node
controller
master controller
destination node
master
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CN104412560B (en
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熊春山
余芳
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Huawei Technologies Co Ltd
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Huawei Technologies Co Ltd
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L45/00—Routing or path finding of packets in data switching networks
    • H04L45/38—Flow based routing
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L9/00—Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols
    • H04L9/40—Network security protocols
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L45/00—Routing or path finding of packets in data switching networks

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Computer Security & Cryptography (AREA)
  • Data Exchanges In Wide-Area Networks (AREA)

Abstract

The present invention provides an SDN-based network configuration method, apparatus and system. The SDN-based network configuration method comprises: when it is determined that a primary controller needing to be changed exists, obtaining a node identification of a target node of the primary controller needing to be changed; allocating an updated primary controller for the target node according to load state information of another SDN controller in a controller pool; and sending the node identification to the updated primary controller so that the updated primary controller obtains a node type of the target node corresponding to the node identification, and configuring a control rule corresponding to the node type for the target node, and sending the control rule to the target node so that the target node can perform corresponding configuration according to the control rule. In this way, a control plane of an SDN automatically configures a data plane, and an updated primary controller can have good performance the updated primary controller controls a node.

Description

SDN-based network configuration method, apparatus and system
Network collocating method, apparatus and system based on SDN
Technical field
The present invention relates to the communication technology, more particularly to a kind of network collocating method based on SDN, apparatus and system.Background technology
Software defined network（Software defined network, SDN) it is a kind of new network architecture, SDN will be separated from the network equipment to the control function of the network equipment, each network equipment configured using central control node.By the way that control plane and data planar separation are come, the network equipment can be carried out flexibly to manage and control.
In SDN, by positioned at the equipment for being controlled to the network equipment of control plane, referred to as SDN controllers（Control ler ) ；By positioned at the network equipment of datum plane, referred to as node.In the network for data forwarding, node can be router or interchanger.In communication network, node can be authentication and authorization charging (Authentication Authorization Accounting, AAA) the moon blunt business device, support DynamicHost that agreement (Dynamic Host Configuration Protocol are set, DHCP equipment), network address translation（Network Address Translation, NAT) equipment, third generation partner program (The 3rd Generation Partnership Project, 3GPP) network element evolved base station（Evolved Node B, eNB), strategy and charging rule functions（Pol icy and Charging Rules Function, PCRF) etc..
Each SDN controllers can be used as master controller（Master Control ler) or slave controller (Slave Control ler), each node can communicate to connect with multiple SDN controllers.For individual node, can only there is master controller of the controller as the node in its multiple SDN controller communicated to connect, other one or more SDN controllers can as the node slave controller.Single SDN controllers can as one or more nodes master controller.The slave controller of other nodes is also used as the SDN controllers of the master controller of some node.Master controller is used to be controlled node, and slave controller is as the spare controller of master controller, for when overload or failure occur for master controller, playing a part of master controller temporarily.
In the prior art, when overload or failure occur for the master controller of node, matched somebody with somebody according to advance Put, can be used the slave controller of node as the master controller of renewal, to ensure the continuous of communication.But, if the master controller updated is also as the master controller of other nodes, and during its current heavier loads, then control of the master controller updated to individual node will be influenceed, and cause the performance of the master controller updated in itself to turn into the SDN bottleneck of network performance.The content of the invention
The one side of the embodiment of the present invention is to provide a kind of network collocating method based on SDN, including：
When judging to exist the master controller for needing to change, the node identification for the destination node for needing to change master controller is obtained；
According to the load state information of the SDN controllers of other in controller pool, the master controller updated is distributed for the destination node, the controller pool includes at least one SDN controller, and the master controller of the renewal is the SDN controllers in the controller pool；
The node identification is sent to the master controller of the renewal, the node type of destination node corresponding to the node identification is obtained for the master controller of the renewal, it is regular for destination node configuration control corresponding with the node type, and the control rule is sent to the destination node.
The network collocating method based on SDN provided with reference to one side, in the first possible implementation, the load state information according to the SDN controllers of other in controller pool is that the master controller that the destination node distribution updates includes：
It is the master controller that the destination node distributes the renewal according to the weights of other SDN controllers in the controller pool, the weights of each SDN controllers are the numerical value distributed according to load state information.
With reference to the first possible implementation of one side, in second of possible implementation, described when judging to exist the master controller for needing to change, obtaining the node identification for the destination node for needing to change master controller includes：
When judging to exist the failure master controller broken down, in the node serviced from the failure master controller, obtain node identification of the weights more than or equal to the destination node of threshold value of slave controller, the slave controller is after the failure master controller breaks down, to be used as the SDN controllers of the standby master controller of the destination node.
With reference to the first possible implementation of one side, in the third possible implementation In, described when judging to exist the master controller for needing to change, obtaining the node identification for the destination node for needing to change master controller includes：
When judging to exist the overload master controller overloaded, the node identification of overload master controller institute service node is obtained；
The quantity for the node that the overload master controller is serviced is reduced, until the weights of the overload master controller are less than or equal to threshold value；
The node that the overload master controller is no longer serviced obtains the node identification of the destination node as destination node.
With reference to one side or the first to three kind of possible implementation, in the 4th kind of possible implementation, methods described also includes：
The controller identifier of the master controller of the renewal is sent to the destination node, so that the destination node carries the solicited message of the node type to the corresponding SDN controllers transmission of the controller identifier, so that the master controller of the renewal is according to the solicited message, it is regular for destination node configuration control corresponding with the node type, and the control rule is sent to the destination node.
Second aspect of the embodiment of the present invention is to provide a kind of network collocating method based on SDN, including：
Receive the control rule that the master controller updated is sent；
Wherein, the master controller of the renewal is that master control set is judging there is the master controller that needs are changed, and obtain need change master controller destination node node identification after, it is the SDN controllers of the destination node distribution according to the load state information of the SDN controllers of other in controller pool;The control rule is that the master controller of the renewal obtains the corresponding node type of the node identification, is the rule for being used to control corresponding with the node type of the destination node configuration；The controller pool includes at least one SDN controller, and the master controller of the renewal is the SDN controllers in the controller pool；
Configured according to the control rule.
The network collocating method based on SDN provided with reference to second aspect, in the first possible implementation, methods described also includes：
The controller identifier that the master control set is sent is received, the controller identifier is the identification information of the controller of the renewal； The solicited message for carrying the node type is sent to the corresponding SDN controllers of the controller identifier, so that the master controller of the renewal is according to the solicited message, it is destination node configuration control rule corresponding with the node type.
3rd aspect of the embodiment of the present invention is to provide a kind of network collocating method based on SDN, including：
It is destination node configuration control rule corresponding with the node type according to node type；The control rule is sent to the destination node, so that the destination node is configured according to the control rule.
The network collocating method based on SDN provided with reference to the 3rd aspect, it is described according to node type in the first possible implementation, it is that destination node configuration control rule corresponding with the node type includes：
Receive the node identification that master control set is sent, the node identification is the master control set when judging to exist the master controller for needing to change, and the identification information of the destination node of master controller is changed the need for acquisition；
According to the node identification, the node type of the destination node corresponding to the node identification is obtained；
For destination node configuration control rule corresponding with the node type.
The network collocating method based on SDN provided with reference to the 3rd aspect, it is described according to node type in second of possible implementation, it is that destination node configuration control rule corresponding with the node type includes：
Receive the solicited message for carrying the node type that the destination node is sent；It is destination node configuration control rule corresponding with the node type according to the solicited message.
With reference to the 3rd aspect or the first to two kind of possible implementation, in the third possible implementation, methods described also includes：
Load state information is sent to the master control set, so that the master control set is judging there is the master controller for needing to change, and get need change master controller destination node node identification after, it is the master controller that the destination node distribution updates according to the load state information for other SDN controllers being connected in controller pool with the node；The controller pool includes at least one SDN controller, and the master controller of the renewal is the SDN controllers in the controller pool. With reference to the 3rd aspect or the first to two kind of possible implementation, in the 4th kind of possible implementation, methods described also includes：
If breaking down, failure message is sent to the master control set；Or
If overloading, overload message is sent to the master control set.
4th aspect of the embodiment of the present invention is to provide a kind of master control set, including：
Acquiring unit, for when judging to exist the master controller for needing to change, obtaining the node identification for the destination node for needing to change master controller；
Processing unit, for the load state information according to the SDN controllers of other in controller pool, the master controller updated is distributed for the destination node, the controller pool includes at least one SDN controller, and the master controller of the renewal is the SDN controllers in the controller pool；
Transmitting element, master controller for the node identification to be sent to the renewal, the node type of destination node corresponding to the node identification is obtained for the master controller of the renewal, it is regular for destination node configuration control corresponding with the node type, and the control rule is sent to the destination node.
The master control set provided with reference to the 4th aspect, in the first possible implementation, the processing unit is additionally operable to：
It is the master controller that the destination node distributes the renewal according to the weights of other SDN controllers in the controller pool, the weights of each SDN controllers are the numerical value distributed according to load state information.
With reference to the first possible implementation of the 4th aspect, in second of possible implementation, the acquiring unit is additionally operable to：
When judging to exist the failure master controller broken down, in the node serviced from the failure master controller, obtain node identification of the weights more than or equal to the destination node of threshold value of slave controller, the slave controller is after the failure master controller breaks down, to be used as the SDN controllers of the standby master controller of the destination node.
With reference to the first possible implementation of the 4th aspect, in the third possible implementation, the acquiring unit is additionally operable to：
When judging to exist the overload master controller overloaded, the node identification of overload master controller institute service node is obtained；The quantity for the node that the overload master controller is serviced is reduced, until the weights of the overload master controller are less than or equal to threshold value；The overload master controller is no longer taken The node of business obtains the node identification of the destination node as destination node.
With reference to the 4th aspect or the first to three kind of possible implementation, in the 4th kind of possible implementation, the transmitting element is additionally operable to：
The controller identifier of the master controller of the renewal is sent to the destination node, so that the destination node carries the solicited message of the node type to the corresponding SDN controllers transmission of the controller identifier, so that the master controller of the renewal is according to the solicited message, it is regular for destination node configuration control corresponding with the node type, and the control rule is sent to the destination node.
5th aspect of the embodiment of the present invention is to provide a kind of node, including：
Receiving unit, the control rule that the master controller updated for receiving is sent；
Wherein, the master controller of the renewal is that master control set is judging there is the master controller that needs are changed, and obtain need change master controller destination node node identification after, it is the SDN controllers of the destination node distribution according to the load state information of the SDN controllers of other in controller pool;The control rule is that the master controller of the renewal obtains the corresponding node type of the node identification, is the rule for being used to control corresponding with the node type of the destination node configuration；The controller pool includes at least one SDN controller, and the master controller of the renewal is the SDN controllers in the controller pool；
Dispensing unit, for being configured according to the control rule.
The node provided with reference to the 5th aspect, in the first possible implementation, the receiving unit is additionally operable to：
The controller identifier that the master control set is sent is received, the controller identifier is the identification information of the controller of the renewal；
Correspondingly, the node also includes：
Transmitting element, the solicited message of the node type is carried for being sent to the corresponding SDN controllers of the controller identifier, so that the master controller of the renewal is according to the solicited message, it is destination node configuration control rule corresponding with the node type.
6th aspect of the embodiment of the present invention is to provide a kind of master controller, including：
Processing unit, for according to node type, being destination node configuration control rule corresponding with the node type；
Transmitting element, for the control rule to be sent into the destination node, so that the target Node is configured according to the control rule.
The master controller provided with reference to the 6th aspect, in the first possible implementation, the processing unit is additionally operable to：
Receive the node identification that master control set is sent, the node identification is the master control set when judging to exist the master controller for needing to change, and the identification information of the destination node of master controller is changed the need for acquisition；According to the node identification, the node type of the destination node corresponding to the node identification is obtained；For destination node configuration control rule corresponding with the node type.
The master controller provided with reference to the 6th aspect, in second of possible implementation, the processing unit is additionally operable to：
Receive the solicited message for carrying the node type that the destination node is sent；It is destination node configuration control rule corresponding with the node type according to the solicited message.
With reference to the 6th aspect or the first to two kind of possible implementation, in the third possible implementation, the transmitting element is additionally operable to：
Load state information is sent to the master control set, so that the master control set is judging there is the master controller for needing to change, and get need change master controller destination node node identification after, it is the master controller that the destination node distribution updates according to the load state information for other SDN controllers being connected in controller pool with the node；The controller pool includes at least one SDN controller, and the master controller of the renewal is the SDN controllers in the controller pool.
With reference to the 6th aspect or the first to two kind of possible implementation, in the 4th kind of possible implementation, the transmitting element is additionally operable to：
When breaking down, failure message is sent to the master control set；Or
When overloading, overload message is sent to the master control set.
7th aspect of the embodiment of the present invention is to provide a kind of master control set, including：
Processor, memory, bus and communication interface；The processor, the memory, the communication interface are connected by the bus and complete mutual communication；
The communication interface, for being communicated to connect with described node, is communicated to connect, and/or communicated to connect with slave controller with described master controller；
The memory, for depositing program；
The processor, for performing described program；
Wherein, described program is used for when judging to exist the master controller for needing to change, and obtaining needs Change the node identification of the destination node of master controller；
According to the load state information of the SDN controllers of other in controller pool, the master controller updated is distributed for the destination node, the controller pool includes at least one SDN controller, and the master controller of the renewal is the SDN controllers in the controller pool；
The node identification is sent to the master controller of the renewal, the node type of destination node corresponding to the node identification is obtained for the master controller of the renewal, it is regular for destination node configuration control corresponding with the node type, and the control rule is sent to the destination node.
8th aspect of the embodiment of the present invention is to provide a kind of node, including：
Processor, memory, bus and communication interface；The processor, the memory, the communication interface are connected by the bus and complete mutual communication；
The communication interface, is communicated to connect with described master control set, and is communicated to connect with described master controller, and/or is communicated to connect with slave controller；
The communication interface is used to receive the control rule that the master controller updated is sent；
Wherein, the master controller of the renewal is that master control set is judging there is the master controller that needs are changed, and obtain need change master controller destination node node identification after, it is the SDN controllers of the destination node distribution according to the load state information of the SDN controllers of other in controller pool;The control rule is that the master controller of the renewal obtains the corresponding node type of the node identification, is the rule for being used to control corresponding with the node type of the destination node configuration；The controller pool includes at least one SDN controller, and the master controller of the renewal is the SDN controllers in the controller pool；
The memory, for depositing program；
The processor, for performing described program；
Wherein, described program is used to be configured according to the control rule.
The 9th aspect of the embodiment of the present invention is to provide a kind of master controller, including：
Processor, memory, bus and communication interface；The processor, the memory, the communication interface are connected by the bus and complete mutual communication；
The communication interface, for being communicated to connect with described master control set, is communicated to connect, and/or communicated with slave controller with described node；
The memory, for depositing program；
The processor, for performing described program； Wherein, described program is used for according to node type, is destination node configuration control rule corresponding with the node type；The control rule is sent to the destination node, so that the destination node is configured according to the control rule.
Tenth aspect of the embodiment of the present invention is to provide a kind of communication system based on SDN, including described master control set, the node described at least one, and the master controller described at least one；Communicated to connect between the master control set, the node and the master controller.
Network collocating method provided in an embodiment of the present invention based on SDN, apparatus and system, when judging to exist the master controller for needing to change, obtain the node identification for the destination node for needing to change master controller, according to the load state information of the SDN controllers of other in controller pool, the master controller updated is distributed for destination node, node identification is sent to the master controller of renewal, the master controller of renewal obtains the node type of destination node corresponding to node identification, for destination node configuration control rule corresponding with node type, and control rule is sent to destination node, the destination node can accordingly be configured according to control rule.Due to when master controller occur overloading or failure situation and when needing to be replaced, master control set can be from other SDN controllers of controller pool, the preferable SDN controllers of loading condition are reselected as the master controller of renewal for destination node, so as to which the control plane for not only realizing SDN is automatically configured to datum plane, and there is preferable performance when enabling to the master controller updated to be controlled node.Brief description of the drawings
Fig. 1 is the flow chart of the network collocating method provided in an embodiment of the present invention based on SDN；Fig. 2 is the flow chart of another network collocating method based on SDN provided in an embodiment of the present invention；Fig. 3 is the flow chart of the another network collocating method based on SDN provided in an embodiment of the present invention；Fig. 4 a are the structural representation of master control set provided in an embodiment of the present invention；
Fig. 4 b are the structural representation of another master control set provided in an embodiment of the present invention；
Fig. 5 a are the structural representation of node provided in an embodiment of the present invention；
Fig. 5 b are the structural representation of another node provided in an embodiment of the present invention；
Fig. 5 c are the structural representation of another node provided in an embodiment of the present invention；
Fig. 6 a are the structural representation of master controller provided in an embodiment of the present invention；
Fig. 6 b are the structural representation of another master controller provided in an embodiment of the present invention；
Fig. 7 is the structural representation of the communication system provided in an embodiment of the present invention based on SDN. Embodiment is when for node replacement master controller, in order that the master controller that must be updated can have preferable performance, various embodiments of the present invention utilize a master control set（Primary control ler) and at least one SDN controller, constitute controller pool in SDN control plane（control l er pool ) .Wherein, each SDN controllers in controller pool can also be referred to as Common Controller for master control set（common control ler ) .By being controlled by master control set to each SDN controllers in controller pool, co-ordination between each SDN controllers can be caused, load balancing is realized.
Communicated to connect between each SDN controllers and master control set in controller pool；Each SDN controllers are communicated to connect with each node in datum plane；Master control set is communicated to connect with each node in datum plane.
Various embodiments of the present invention provide the network collocating method based on SDN, network or system that the control plane for other forms is separated with datum plane, can equally be configured using the described method in various embodiments of the present invention.
Master control set described in various embodiments of the present invention can be independent equipment, or set the functional module in other equipment in the control plane；Described node can be router, interchanger, aaa server, support DHCP equipment, NAT device, eNB or PCRF etc.；Master controller（Master control ler) and slave controller（S lave control ler) it is SDN controllers in controller pool, specific SDN controllers are operated as master controller, or are operated as slave controller, are configured by master control set according to default strategy.Slave controller is used as the backup of master controller.
Fig. 1 is the flow chart of the network collocating method provided in an embodiment of the present invention based on SDN, and as shown in Fig. 1, this method includes：
101st, master control set obtains the node identification for the destination node for needing to change master controller when judging to exist the master controller for needing to change.
Specifically, when the situation of the master controller failure for node serve or overload, failure or overload message can be sent to master control set, so that master control set knows which master controller there occurs failure or overload；Or, master control set can be detected periodically to the SDN controllers used as master controller, to know which master controller there occurs the situation of failure or overload.
Master control set after judging which SDN controller needs to be replaced, it is necessary to Jin mono- Walk sentence Break and the node that the SDN controllers are serviced.That is, when the SDN controllers need to be replaced, using the SDN controllers as the node of master controller, it is necessary to which master control set is the master controller that its distribution updates again.
The node of replacing master controller, referred to as destination node will be needed in various embodiments of the present invention.Master control set by the following method, can obtain the node identification of destination node.
If the corresponding relation being stored with master control set between each SDN controllers and each node, such as which SDN controller as which or which node master controller or slave controller, or each node is using which SDN controller as master controller or slave controller, then master control set from above-mentioned corresponding relation, can find the node identification of destination node.
If above-mentioned corresponding relation is not stored in master control set, SDN controllers that then master control set can be replaced by the needs, the slave controller or database serviced for destination node, SDN controllers that the needs are replaced are obtained before breaking down or overloading, as which master controller with which node, so as to find the node identification of destination node.
102nd, master control set, according to the load state information of the SDN controllers of other in controller pool, is the master controller that the destination node distribution updates.
Wherein, the controller pool includes at least one SDN controller, and the master controller of the renewal is the SDN controllers in the controller pool.
Specifically, master control set is after the destination node for needing to change master controller has been known, the load state information for other SDN controllers that destination node is connected is obtained respectively.If destination node has-individual or multiple slave controllers, master control set can obtain the load state information of each slave controller.
Wherein, the load state information in various embodiments of the present invention includes CPU（Central
Processing Unit, CPU) the ^ I Ft such as resource utilization, internal memory service condition and remaining memory capacity from Θ,.
Master control set can be destination node distribution master controller again according to the principle of load balancing, from other SDN controllers of controller pool after the load state information of these SDN controllers is collected into.
It should be noted that because master control set is that destination node distribution master controller Walk are to be carried out respectively for each destination node suddenly, various embodiments of the present invention are only illustrated by taking a destination node as an example. Because the SDN controllers as master controller need to carry out more data processing and operation, thus in each SDN controllers of prioritizing selection light load SDN controllers, be used as the master controller of destination node.Wherein, the method for the load weight situation of SDN controllers is judged according to load state information, can using with similar implementation in the prior art.
Master control set is after the load weight of each SDN controllers is determined, according to the actual needs, is that destination node distributes a master controller, is used as the master controller of renewal.
103rd, the node identification is sent to the master controller of the renewal by master control set.
Specifically, master control set is node distribution master controller, the specific control that the node is carried out is carried out by master controller.After the master controller serviced for destination node is changed, correspondingly need to update the control rule being controlled to the destination node.Control rule is obtained by the master controller updated according to the node type of node.
In order that the master controller that must be updated can know its master controller for being allocated as the node, master control set is after the master controller updated for node distribution, need the node identification of node being sent to the master controller of the renewal, and its allocated Role Information will be informed to the master controller of renewal.So as to which the master controller can know it as the master controller of which node, and then, according to the node type of the node, can obtain what the node was controlled before being controlled to node
104th, the master controller updated obtains the node type of destination node corresponding to the node identification, is destination node configuration control rule corresponding with the node type.
Specifically, the master controller updated is after the node identification of master control set transmission is received, according to the node identification, node type corresponding with the node identification is obtained.
It is preferred that, the master controller of renewal can obtain the context of node in the following way, include the control rule of the node type of node, the state of node and node in complete node context.
Specifically include, the master controller of renewal can be obtained directly at node；It can be obtained at the former master controller of node；It can be obtained at the former slave controller of node；The corresponding control rule sets of node type can be obtained from topology information database (topology database) and policy information database (po l i cy database), corresponding control rule is specified for the node.
If being stored with node identification and the corresponding relation of node type in master control set, the master controller updated can also obtain the node type of the node at master control set.
Because node can be above-mentioned plurality of devices, and the control rule being controlled to distinct device May be different, therefore kinds of schemes can be pre-set in master controller, it is controlled for different equipment using corresponding control rule.The node type of node can be the device type of node, or other information.
The master controller of renewal is destination node configuration control rule corresponding with its node type after the node type of destination node is got.Corresponding relation between node type and control rule, can be set in advance in each master controller；It can also be set in advance in database, correspondingly, the master controller of renewal can be searched according to node type in the database, so as to know control rule corresponding with node type.
105th, the control rule is sent to the destination node by the master controller updated.
Specifically, the control rule is sent to destination node by the master controller updated after control rule corresponding with the node type is obtained.So as to which destination node can be configured according to control rule, it is achieved thereby that network configuration of the control plane to datum plane.
Network collocating method provided in an embodiment of the present invention based on SDN, when judging to exist the master controller for needing to change, obtain the node identification for the destination node for needing to change master controller, according to the load state information of the SDN controllers of other in controller pool, the master controller updated is distributed for destination node, node identification is sent to the master controller of renewal, the master controller of renewal obtains the node type of destination node corresponding to node identification, for destination node configuration control rule corresponding with node type, and control rule is sent to destination node, the destination node can accordingly be configured according to control rule.Due to when master controller occur overloading or failure situation and when needing to be replaced, master control set can be from other SDN controllers of controller pool, the preferable SDN controllers of loading condition are reselected as the master controller of renewal for destination node, so as to which the control plane for not only realizing SDN is automatically configured to datum plane, and there is preferable performance when enabling to the master controller updated to be controlled node.
Fig. 2 is the flow chart of another network collocating method based on SDN provided in an embodiment of the present invention, as shown in Fig. 2 this method includes：
201st, master control set is when judging to exist the failure master controller broken down, in the node serviced from the failure master controller, obtains node identification of the weights more than or equal to the destination node of threshold value of slave controller.
Wherein, the slave controller is after the failure master controller breaks down, to be used as the SDN controllers of the standby master controller of the destination node. Specifically, on the basis of implementation described in Walk rapid 101, in order to avoid not preserving in situation about overloading, master control set in the node and control plane in datum plane occurs in master control set
Service relation between SDN controllers.
In this case, the information of its node serviced is preserved in each SDN controllers, that is, be stored with its master controller or slave controller as which node in each SDN controllers, and these nodes are also used as slave controller or master controller using which SDN controller.
For example, SDN controllers 1 are the master controller of node 1, and SDN controllers 2 and the slave controller that SDN controllers 3 are node 1, then SDN controllers 1, SDN controllers 2 and SDN controllers 3 know the role serviced each other for node 1 respectively.
Allocation result can be sent to involved SDN controllers by master control set when being every time node distribution master controller and/or slave controller.Node identification, the Internet protocol of node can be included in allocation result（Internet Protocol, IP) address and/or fully qualified domain name（Ful ly Qual ified Domain Name, FQDN), and each SDN controllers being related to controller identifier, Internet protocol（Internet Protocol, IP) address and/or fully qualified domain name（Ful ly Qual ified Domain Name, FQDN), in addition to each SDN controllers are allocated as the Role Information of master controller or slave controller.Each SDN controllers will preserve the information in allocation result after above-mentioned allocation result is received, until after receiving the allocation result after updating, correspondingly, the allocation result stored is updated.
It is preferred that, master control set is when detecting some master controller and breaking down, failure message can be sent in controller pool, other SDN controllers in addition to the master controller broken down carry the identification information of the master controller broken down in failure message；Each SDN controllers in controller pool are after the failure message is received, it can be searched in the nodal information list for institute's service node that each leisure is locally stored, the information of each SDN controller of promising each node serve is stored in nodal information list；If some SDN controller is found, when it is identical node serve with the master controller broken down, then the role of each SDN controllers that can be by the context of the node and for the node serve is sent to master control set.So as to so that master control set can know the information for the node that the master controller broken down is serviced.
If the better performances of master control set, the above-mentioned service relation between the SDN controllers in the node and control plane in datum plane can also be preserved in the case where that will not overload, in master control set. In this case, when master control set monitors that some master controller breaks down, the information for each node that the master controller broken down is serviced, i.e., affected node are directly found according to the service relation；And the information of other SDN controllers for these node serves can also be found, to redistribute master controller according to the load state information of these SDN controllers for affected node.
Master control set can judge the failure master controller broken down in the following way.
One kind is, when master controller breaks down, and failure master controller sends failure message to master control set.Master control set can interpolate that out which SDN controller there occurs failure after failure message is received.
Another to be, master control set periodically detects whether each master controller is in normal working condition.If master control set has detected master controller when there occurs failure, which SDN controller can know failure master controller is.
During as being broken down for the SDN controllers of master controller, its one or more node serviced will be caused to be required to change master controller.According to the backup relation in current SDN between master controller and slave controller, when master controller breaks down, its node serviced will be switched on the slave controller being each pre-configured with；If node is provided with multiple slave controllers in advance, it can be switched on one of slave controller.The one or more slave controllers being pre-configured with, i.e., for master controller can not normal work when, play temporarily backup effect SDN controllers.
In order to ensure the continuity of communication temporarily, it is possible to use slave controller is used as the master controller of node.But, because slave controller is also possible to master controller as other nodes, that is to say, that after the node turns into the load of the slave controller, the slave controller is likely to occur the situation of heavier loads, so as to influence the performance that the slave controller is each node serve.
Based on above-mentioned situation, in the case that master control set breaks down in failure master controller, and each node is switched to slave controller respectively, judge the loading condition of each slave controller Ke Yi Jin mono- Walk.
A threshold value is previously provided with master control set, the weight situation of the load for weighing SDN controllers.The load weight situation of SDN controllers, can be embodied by weights.
Master control set can be that each SDN controllers distribute corresponding weights respectively according to the rule being pre-configured with, according to the load weight situation of each SDN controllers after the load state information of each SDN controllers in obtaining controller pool.The weights of the heavier SDN controllers of load are higher, load lighter The weights of SDN controllers are lower.
It is understood that can also set smaller by the weights of the SDN controllers of heavier loads, the weights of the SDN controllers of light load are set higher, the Rule of judgment in corresponding various embodiments of the present invention is adjusted.
Wherein, the actual loading situation of SDN controllers can be included in load state information, the information such as CPU resource utilizations, internal memory service condition and remaining memory capacity；The parameter for weighing load weight can also be included, so that master control set is the load weight situation that would know that SDN controllers according to the parameter.The specific parametric form included in load state information, can be determined according to the communication protocol being pre-configured between master control set and SDN controllers.
If master control set judges there is the slave controller that weights are more than or equal to threshold value in each slave controller, it is the destination node for needing to be allocated master controller again to illustrate the node being switched on the slave controller.
It is less than the slave controller of the threshold value for weights in each slave controller, can not is that the node for being switched to the slave controller redistributes master controller.That is, each node that the current loading condition of the slave controller can be serviced for it provides preferable process performance.
Master control set obtains the node identification of destination node after judging to need to redistribute the destination node of master controller.
202nd, master control set, according to the weights of other SDN controllers in the controller pool, is the master controller that the destination node distributes the renewal.
Wherein, the weights of each SDN controllers are the numerical value distributed according to load state information.
On the basis of specific Walk rapid 102, master control set for destination node when redistributing master controller, corresponding weights can be distinguished according to SDN controllers in controller pool, therefrom select the SDN controllers of light load representated by weights as the master controller of the renewal of destination node.
Master control set preferentially checks the loading condition of other configured slave controllers of destination node.
If the destination node is only configured with a slave controller, that is, the slave controller having been switched to, then master control set in other SDN controllers, selects the SDN controllers of light load as the master controller of the renewal of destination node from controller pool.It is preferred that, selection loading condition not yet reaches heavy duty or overload, and it is expected that the slave controller to be converted to the master controller of the destination node after, be also not in that slave controller of heavy duty or overload.
If the destination node is configured with multiple slave controllers, master control set can be target section therefrom The master controller that point selection updates.The principle of selection is, if wherein the loading condition of some slave controller not yet reaches heavy duty or overload, and it is expected that after the slave controller to be converted to the master controller of the destination node, also in the case of being not in heavy duty or overload, the slave controller can be converted to the master controller of the destination node, and be used as new slave controller again for destination node distribution others SDN controllers by master control set.
Jin mono- Walk, if in multiple slave controllers of destination node, when meeting the slave controller of above-mentioned condition and having multiple, the loading condition of these slave controllers can be compared, a slave controller of wherein light load can be selected as the master controller of the destination node.If exist multiple loads lighter slave controller when, the distance of physical location is considered Ke Yi Jin mono- Walk, selects the SDN controller closer to the distance wherein with destination node to be used as its master controller.
If multiple slave controllers of destination node are unsatisfactory for above-mentioned condition, master control set from other SDN controllers of controller pool, can select the master controller of the renewal as the destination node of light load.
203rd, the node identification is sent to the master controller of the renewal by master control set, and the controller identifier of the master controller of the renewal is sent into the destination node.
Specifically, the implementation described in Walk rapid 103 can be seen with ginseng.
Jin mono- Walk, also need to complete a security process between master control set and destination node, with the secure transmission tunnel for carrying out authentication between the two and setting up both sides.
After above-mentioned security process terminates, master control set is after master controller has been redistributed for destination node, the controller identifier of the master controller of renewal is sent to the destination node, so that the destination node can know which SDN controller the master controller that master control set is its renewal redistributed is.
In order that being capable of proper communication between the master controller and destination node that must update, master control set can also by the IP address of destination node, the IP address of the master controller updated, the master controller updated Role Information, and before master controller is updated for the node serve master controller identification information and its Role Information etc. be sent to the master controller of renewal.
The IP address of the master controller of renewal and its corresponding Role Information can also be sent to the destination node by master control set.
204th, the master controller updated obtains the node type of destination node corresponding to the node identification, is destination node configuration control rule corresponding with the node type. Specifically, also needing to complete a security process between destination node and the master controller of renewal, with the secure transmission tunnel for carrying out authentication between the two and setting up both sides.
After above-mentioned security process terminates, implementation described in Walk rapid 104 can be seen to join.
And then, the master controller of renewal can also send information to master control set, to inform the migration success of this master controller of master control set.Master control set can discharge the connection between destination node, when needing to interact with the destination node next time, re-starting safety certification and setting up communication connection relation.
The mode that the master controller of renewal obtains the node type of destination node can have the following two kinds.One kind is that the master controller of renewal receives the node identification that master control set is sent, and according to the node identification, obtains the node type of the destination node corresponding to the node identification；For destination node configuration control rule corresponding with the node type.
Specifically, master control set can obtain the node type of destination node from database.The corresponding relation between the identification information of node and node type is previously stored with the database.It can be made a distinction between different nodes by respective identification information, correspondingly, master control set can inquire node type corresponding with the node identification, be used as the node type of the destination node according to the node identification of destination node from database.
The master controller of renewal can be that node configuration control § IJ advise shellfish IJ according to the information obtained from topology information database and policy information database.
Wherein, topological database includes the related topology information database of the controller topology information database related to node.
The topology location information related to each SDN controllers in the related topology information database maintenance controller pool of controller, includes the topology location information and predefined type information etc. of SDN controllers.The topology location information of SDN controllers includes：Internet Protocol Version 4 (Internet Protocol version 4, IPv4) address, IPv6 (Internet Protocol version 6, IPv6) address or the FQDN of SDN controllers.The predefined type information of SDN controllers is the information for distinguishing SDN controllers and master control set.That is, the predefined type information of SDN controllers and master control set is differed.
The topology location information of the related topology information database maintenance node of node, includes the topology location information and node type of node.The topology location information of node includes：IPv4 addresses, IPv6 addresses or the FQDN of node.When a node has multiple ports, each port may correspond to not Same IP addresses or FQDN.The node type of node can include：Authentication, authorization, accounting (Authentication^ Authorization and Accounting, AAA), DHCP proxy (Proxy), DHCP servers（Server), network address translation（Network Address Translation, NAT), fire wall（Firewall), transmission control protocol (Transmission Control Protocol, TCP) is acted on behalf of（Proxy), HTTP (HyperText Transfer Protocol, HTTP) is acted on behalf of（Proxy), domain name system（Domain Name System, DNS) server (Server), radio network controller (Radio Network Controller, RNC), base station controller（Base Station Controller, BSC), blunt business supporting node (the Serving General Packet Radio Service Support Node of GPRS month, SGSN)), mobility management entity (Mobility Management Entity, MME), the moon blunt business gateway（Serving Gateway, SGW), packet data network gateway（Packet Data Network Gateway, PGW), "Policy and Charging Rules Function (Policy charging and rules function, PCRF), home subscriber server (Home Subscriber Server, HSS), mobile switching centre（Mob i 1 e Swi t ch i ng Cent er, MSC), Visited Location Registor（Vi s i t ed Location Register, VLR) etc..
Topology information database, the topology information database of node correlation and any two in policy information database of above-mentioned controller correlation or multiple can close as needed set.The access rights of database can be configured so that only master control set has permission conducts interviews to topology information database.When the topology location information of node or SDN changes, topology information database is correspondingly updated.
Policy information database includes the corresponding relation between node type and control rule.Each node type correspond to a basic function type set, and identical function is there may be in the corresponding basic function type set of different node types.Corresponding to every kind of function, a control information is correspond to respectively, correspondingly, each node type correspond to a plurality of control information, shellfish I " is advised by a plurality of control information composition control, therefore each node correspond to corresponding control rule.
Each SDN controllers in controller pool can be provided with the address information of master control set in advance, such as the IPv4 addresses, IPv6 addresses or FQDN of master control set.The respective type of information of mark has been pre-configured with SDN controllers and master control set respectively.
Another to be, destination node sends the solicited message for carrying the node type to the corresponding SDN controllers of the controller identifier；The master controller of renewal, according to the solicited message, is the mesh Mark node configuration control rule corresponding with the node type.
Specifically, destination node sends the solicited message for obtaining control rule to the master controller of renewal, the IP address and its node type of destination node can be included in the request.
The master controller of renewal can get the contextual information of the destination node according to the IP address of destination node from following entity.For example, update master controller before be used as the destination node master controller SDN controllers, renewal master controller before as the destination node slave controller SDN controllers.If master control set is out of order in judgement after master controller, the control rule of node is got from failure master controller, then the master controller updated can also obtain the contextual information of destination node from master control set.
If the master controller updated is the slave controller of destination node, the contextual information of the destination node has been preserved thereon, therefore it is rapid to perform above-mentioned acquisition contextual information Walk.
The master controller of renewal can also obtain the contextual information of node directly at node.The master controller of renewal obtains the corresponding control rule sets of node type according to node type query strategy information database, formulates the control rule of the node.So as to which the control rule can be handed down to the destination node by the master controller of renewal.
205th, the control rule is sent to the destination node by the master controller updated.
Specifically, the implementation described in Walk rapid 105 can be seen with ginseng.
206th, destination node receives the control rule that the master controller updated is sent, and is configured according to the control rule.
Specifically, destination node receives control rule from the master controller of renewal.Destination node is according to the control rule received, and to its, current configuration is updated.Due to having changed the destination node of master controller, correspondingly control rule is also updated, so that the control rule on destination node correspondingly can be automatically updated after main control replacing.
Included control information in control rule, can be and similar implementation in the prior art.
207th, load state information is sent to the master control set by the master controller updated.
Specifically, the master controller updated is sent to after destination node by control rule, its current load state information can also be sent to master control set, the load state information of the master controller of renewal is updated so as to obtain master control set.
Fig. 3 is the flow chart of the another network collocating method based on SDN provided in an embodiment of the present invention, As shown in figure 3, this method includes：
301st, master control set obtains the node identification of overload master controller institute service node when judging to exist the overload master controller overloaded.
Specifically, on the basis of implementation described in Walk rapid 101, master control set can judge the overload master controller overloaded in the following way.
One kind is, when master controller overloads, and overload master controller sends overload message to master control set.Master control set can interpolate that out which SDN controller is overloaded when receiving overload message.
Another to be, master control set periodically detects whether each master controller is in normal working condition.If master control set has detected master controller when there occurs overload, it can know which SDN controller overload master controller is.
During as being overloaded for the SDN controllers of master controller, its one or more node serviced will be caused to be required to change master controller.Master control set is in such cases it need obtain the node identification of one or more nodes of the overload master controller institute server.
Master control set can obtain the contextual information for the node being related to after overload master controller is judged from the overload master controller.The node identification of the contextual information of its interior joint including the node, for the node serve each SDN controllers controller identifier and corresponding Role Information.In addition, the control rule of the node can also be included in contextual information.
When the loading condition of SDN controllers is characterized by weights, a threshold value can be previously provided with master control set, the threshold value be able to can also be differed with the threshold value in embodiment illustrated in fig. 2 with identical.If the weights of SDN controllers are more than the threshold value, illustrate the current heavier loads of the SDN controllers；If the weights of SDN controllers are less than or equal to the threshold value, illustrate the current light load of the SDN controllers.
Wherein, the relation between the loading condition and weight of SDN controllers, may refer to the implementation described in the embodiment shown in Fig. 2.
302nd, master control set reduces the quantity for the node that the overload master controller is serviced, until the weights of the overload master controller are less than or equal to threshold value.
Specifically, master control set can reduce the quantity of node from one or more nodes for being serviced of overload master controller, can reduce one by one preferably.
Often reduce after a node, master control set detects the load of overload master controller currently again Situation, or the current weights of the overload master controller.If the current weights of the overload master controller need the quantity for continuing to reduce the node that the overload master controller is serviced still greater than the threshold value.Until when the weights of the overload master controller are less than or equal to the threshold value, can no longer reduce the quantity for the node that the overload master controller is serviced.
303rd, the node that master control set no longer services the overload master controller is as destination node, and obtains the node identification of the destination node.
Specifically, master control set is after the quantity for the node that overload master controller is serviced is reduced, the node that the overload master controller is no longer serviced is as destination node, that is, the node for needing master controller again for its distribution master controller.
Master control set correspondingly obtains the node identification of destination node after destination node has been known.
304th, master control set, according to the weights of other SDN controllers in the controller pool, is the master controller that the destination node distributes the renewal.
Specifically, the implementation described in Walk rapid 202 can be seen with ginseng.
Jin mono- Walk, because the difference for overloading master controller and failure master controller is, failure master controller can not normal work again, and overload master controller can be with normal work, therefore, master controller is overloaded in the case where its weights meets certain condition, and the slave controller of destination node can also be converted to as needed.
305th, the node identification is sent to the master controller of the renewal by master control set, and the controller identifier of the master controller of the renewal is sent into the destination node.
Specifically, the implementation described in Walk rapid 203 can be seen with ginseng.
306th, the master controller updated obtains the node type of destination node corresponding to the node identification, is destination node configuration control rule corresponding with the node type.
Specifically, also needing to complete a security process between destination node and the master controller of renewal, with the secure transmission tunnel for carrying out authentication between the two and setting up both sides.
After above-mentioned security process terminates, the implementation described in Walk rapid 204 can be seen with ginseng.And then, the master controller of renewal can also send information to master control set, to inform the migration success of this master controller of master control set.Master control set can discharge the connection between destination node, when needing to interact with the destination node next time, re-starting safety certification and setting up communication connection relation.Also, master control set indicates the former related resource taken by destination node of overload master controller release.Master controller is overloaded after the release of respective resources is completed, and state is carried out more to master control set Newly.
The mode that the master controller of renewal obtains the node type of destination node can have the following two kinds.The implementation described in Walk rapid 204 can be specifically seen with ginseng.
One kind is that the master controller of renewal receives the node identification that master control set is sent, and according to the node identification, obtains the node type of the destination node corresponding to the node identification；For destination node configuration control rule corresponding with the node type.
Another to be, destination node sends the solicited message for carrying the node type to the corresponding SDN controllers of the controller identifier；The master controller of renewal, according to the solicited message, is destination node configuration control rule corresponding with the node type.
Specifically, destination node sends the solicited message for obtaining control rule to the master controller of renewal, the IP address and its node type of destination node can be included in the request.
The master controller of renewal can get the contextual information of the destination node according to the IP address of destination node from following entity.For example, update master controller before be used as the destination node master controller SDN controllers, renewal master controller before as the destination node slave controller SDN controllers.If master control set is out of order in judgement after master controller, the control rule of node is got from failure master controller, then the master controller updated can also obtain the contextual information of destination node from master control set.The master controller of renewal can also obtain the context of node directly at node
^ I Ft from Θ,.
If the master controller updated is the slave controller of destination node, the contextual information of the destination node has been preserved thereon, therefore it is rapid to perform above-mentioned acquisition contextual information Walk.
307th, the control rule is sent to the destination node by the master controller updated.
Specifically, the implementation described in Walk rapid 205 can be seen with ginseng.
308th, destination node receives the control rule that the master controller updated is sent, and is configured according to the control rule.
Specifically, the implementation described in Walk rapid 206 can be seen with ginseng.
309th, load state information is sent to the master control set by the master controller updated.
Specifically, the implementation described in Walk rapid 207 can be seen with ginseng.
Fig. 4 a are the structural representation of master control set provided in an embodiment of the present invention, and as shown in fig. 4 a, the master control set includes：Acquiring unit 11, processing unit 12 and transmitting element 13.
Acquiring unit 11, for when judging to exist the master controller for needing to change, obtaining to need more The node identification of the destination node of change owner controller；
Processing unit 12, for the load state information according to the SDN controllers of other in controller pool, the master controller updated is distributed for the destination node, the controller pool includes at least one SDN controller, and the master controller of the renewal is the SDN controllers in the controller pool；
Transmitting element 13, master controller for the node identification to be sent to the renewal, the node type of destination node corresponding to the node identification is obtained for the master controller of the renewal, it is regular for destination node configuration control corresponding with the node type, and the control rule is sent to the destination node.
Specifically, the method that master control set provided in an embodiment of the present invention carries out the network configuration based on SDN, may refer to the implementation described in above-mentioned corresponding embodiment of the method, here is omitted.
Master control set provided in an embodiment of the present invention, when judging to exist the master controller for needing to change, obtains the node identification for the destination node for needing to change master controller, according to other in controller pool
The load state information of SDN controllers, the master controller updated is distributed for destination node, node identification is sent to the master controller of renewal, the master controller of renewal obtains the node type of destination node corresponding to node identification, for destination node configuration control rule corresponding with node type, and control rule is sent to destination node, the destination node can accordingly be configured according to control rule.Due to when master controller occur overloading or failure situation and when needing to be replaced, master control set can be from other SDN controllers of controller pool, the preferable SDN controllers of loading condition are reselected as the master controller of renewal for destination node, so as to which the control plane for not only realizing SDN is automatically configured to datum plane, and can in tuning controller pond each controller resource so that there is preferable performance when the master controller of renewal is controlled to node.
Jin mono- Walk, the processing unit 12 is additionally operable to：
It is the master controller that the destination node distributes the renewal according to the weights of other SDN controllers in the controller pool, the weights of each SDN controllers are the numerical value distributed according to load state information.
Jin mono- Walk, the acquiring unit 11 is additionally operable to：
When judging to exist the failure master controller broken down, in the node serviced from the failure master controller, obtain node identification of the weights more than or equal to the destination node of threshold value of slave controller, the slave controller is after the failure master controller breaks down, to be used as the SDN controllers of the standby master controller of the destination node. Jin mono- Walk, the acquiring unit 11 is additionally operable to：
When judging to exist the overload master controller overloaded, the node identification of overload master controller institute service node is obtained；The quantity for the node that the overload master controller is serviced is reduced, until the weights of the overload master controller are less than or equal to threshold value；The node that the overload master controller is no longer serviced obtains the node identification of the destination node as destination node.
Jin mono- Walk, the transmitting element 13 is additionally operable to：
The controller identifier of the master controller of the renewal is sent to the destination node, so that the destination node carries the solicited message of the node type to the corresponding SDN controllers transmission of the controller identifier, so that the master controller of the renewal is according to the solicited message, it is regular for destination node configuration control corresponding with the node type, and the control rule is sent to the destination node.
Specifically, the method that master control set provided in an embodiment of the present invention carries out the network configuration based on SDN, may refer to the implementation described in above-mentioned corresponding embodiment of the method, here is omitted.
Fig. 4 b are the structural representation of another master control set provided in an embodiment of the present invention, as shown in Figure 4 b, processor 21, memory 22, bus 23 and communication interface 24.Connected between processor 21, memory 22 and communication interface 24 by bus 23 and complete mutual communication.
Processor 21 may be monokaryon or multinuclear CPU（Central Process ing Unit, CPU), or be specific integrated circuit (Appl icat ion Specific Integrated Circuit, ASIC), or to be configured to implement one or more integrated circuits of the embodiment of the present invention.
Memory 22 can be high-speed RAM memory, or nonvolatile memory (non-volati le memory), for example, at least one magnetic disk storage.
The communication interface 24 is used to communicate to connect with node, master controller and/or slave controller.Memory 22 is used to deposit program 221.Specifically, can include program code in program 221, described program code includes computer-managed instruction.
The operation program 221 of processor 21, to perform：
When judging to exist the master controller for needing to change, the node identification for the destination node for needing to change master controller is obtained；
It is the master controller that the destination node distribution updates according to the load state information of the SDN controllers of other in controller pool, the controller pool includes at least one SDN controller, the renewal Master controller be the controller pool in SDN controllers；
The node identification is sent to the master controller of the renewal, the node type of destination node corresponding to the node identification is obtained for the master controller of the renewal, it is regular for destination node configuration control corresponding with the node type, and the control rule is sent to the destination node.
Specifically, the method that master control set provided in an embodiment of the present invention carries out the network configuration based on SDN, may refer to the implementation described in above-mentioned corresponding embodiment of the method, here is omitted.
Fig. 5 a are the structural representation of node provided in an embodiment of the present invention, and as shown in Figure 5 a, the node includes：Receiving unit 31 and dispensing unit 32.
Receiving unit 31, the control rule that the master controller updated for receiving is sent；
Wherein, the master controller of the renewal is that master control set is judging there is the master controller that needs are changed, and obtain need change master controller destination node node identification after, it is the SDN controllers of the destination node distribution according to the load state information of the SDN controllers of other in controller pool;The control rule is that the master controller of the renewal obtains the corresponding node type of the node identification, is the rule for being used to control corresponding with the node type of the destination node configuration；The controller pool includes at least one SDN controller, and the master controller of the renewal is the SDN controllers in the controller pool；
Dispensing unit 32, for being configured according to the control rule.
Specifically, the method that node provided in an embodiment of the present invention carries out the network configuration based on SDN, may refer to the implementation described in above-mentioned corresponding embodiment of the method, here is omitted.
Node provided in an embodiment of the present invention, when master control set judges to exist the master controller for needing to change, according to the load state information of the SDN controllers of other in controller pool, the master controller updated for its distribution, the master controller of renewal configures control rule corresponding with node type for it, so that node can accordingly be configured according to control rule.Due to when master controller occur overloading or failure situation and when needing to be replaced, master control set can be from other SDN controllers of controller pool, the preferable SDN controllers of loading condition are reselected as the master controller of renewal for node, so as to which the control plane for not only realizing SDN is automatically configured to datum plane, and there is preferable performance when enabling to the master controller updated to be controlled node.
Fig. 5 b are the structural representation of another node provided in an embodiment of the present invention, and as shown in Figure 5 b, the node can also include：Transmitting element 33.
The receiving unit 31 is additionally operable to： The controller identifier that the master control set is sent is received, the controller identifier is the identification information of the controller of the renewal；
Correspondingly, the transmitting element 33, the solicited message of the node type is carried for being sent to the corresponding SDN controllers of the controller identifier, so that the master controller of the renewal is according to the solicited message, it is destination node configuration control rule corresponding with the node type.
Specifically, the method that node provided in an embodiment of the present invention carries out the network configuration based on SDN, may refer to the implementation described in above-mentioned corresponding embodiment of the method, here is omitted.
Fig. 5 c are the structural representation of another node provided in an embodiment of the present invention, and as shown in Figure 5 c, the node includes：
Processor 41, memory 42, bus 43 and communication interface 44.Processor 41, memory
Connected between 42 and communication interface 44 by bus 43 and complete mutual communication.
Processor 41 may be monokaryon or multinuclear CPU（Central Process ing Unit, CPU), or be specific integrated circuit (Appl icat ion Specific Integrated Circuit, ASIC), or to be configured to implement one or more integrated circuits of the embodiment of the present invention.
Memory 42 can be high-speed RAM memory, or nonvolatile memory (non-volati le memory), for example, at least one magnetic disk storage.
The communication interface 44 is communicated to connect with master control set, master controller and/or slave controller, the control rule that the master controller updated for receiving is sent；
Wherein, the master controller of the renewal is that master control set is judging there is the master controller that needs are changed, and obtain need change master controller destination node node identification after, it is the SDN controllers of the destination node distribution according to the load state information of the SDN controllers of other in controller pool；The control rule is that the master controller of the renewal obtains the corresponding node type of the node identification, is the rule for being used to control corresponding with the node type of the destination node configuration；The controller pool includes at least one SDN controller, and the master controller of the renewal is the SDN controllers in the controller pool；
Memory 42 is used to deposit program 421.Specifically, can include program code in program 421, described program code includes computer-managed instruction.
The operation program 421 of processor 41, to perform：
Configured according to the control rule. Specifically, the method that node provided in an embodiment of the present invention carries out the network configuration based on SDN, may refer to the implementation described in above-mentioned corresponding embodiment of the method, here is omitted.
Fig. 6 a are the structural representation of master controller provided in an embodiment of the present invention, and as shown in Figure 6 a, the master controller includes：Processing unit 51 and transmitting element 52.
Processing unit 51, for according to node type, being destination node configuration control rule corresponding with the node type；
Transmitting element 52, for the control rule to be sent into the destination node, so that the destination node is configured according to the control rule.
Specifically, the method that master controller provided in an embodiment of the present invention carries out the network configuration based on SDN, may refer to the implementation described in above-mentioned corresponding embodiment of the method, here is omitted.
Master controller provided in an embodiment of the present invention, when master control set judges to exist the master controller for needing to change, according to the load state information of the SDN controllers of other in controller pool, the master controller updated is distributed for destination node, after the master controller as renewal, obtain the node type of destination node corresponding to node identification, for destination node configuration control rule corresponding with node type, and control rule is sent to destination node so that the destination node can accordingly be configured according to control rule.Due to when master controller occur overloading or failure situation and when needing to be replaced, master control set can be from other SDN controllers of controller pool, the preferable SDN controllers of loading condition are reselected as the master controller of renewal for destination node, so as to which the control plane for not only realizing SDN is automatically configured to datum plane, and there is preferable performance when enabling to the master controller updated to be controlled node.
Jin mono- Walk, the processing unit 51 is additionally operable to：
Receive the node identification that master control set is sent, the node identification is the master control set when judging to exist the master controller for needing to change, and the identification information of the destination node of master controller is changed the need for acquisition；According to the node identification, the node type of the destination node corresponding to the node identification is obtained；For destination node configuration control rule corresponding with the node type.
Jin mono- Walk, the processing unit 51 is additionally operable to：
Receive the solicited message for carrying the node type that the destination node is sent；It is destination node configuration control rule corresponding with the node type according to the solicited message.
Jin mono- Walk, the transmitting element 52 is additionally operable to：
Load state information is sent to the master control set, so that the master control set is being judged to deposit In the master controller for needing to change, and get need change master controller destination node node identification after, it is the master controller that the destination node distribution updates according to the load state information for other SDN controllers being connected in controller pool with the node；The controller pool includes at least one SDN controller, and the master controller of the renewal is the SDN controllers in the controller pool.
Jin mono- Walk, the transmitting element 52 is additionally operable to：
When breaking down, failure message is sent to the master control set；Or
When overloading, overload message is sent to the master control set.
Specifically, the method that master controller provided in an embodiment of the present invention carries out the network configuration based on SDN, may refer to the implementation described in above-mentioned corresponding embodiment of the method, here is omitted.
Fig. 6 b are the structural representation of another master controller provided in an embodiment of the present invention, and as shown in Figure 6 b, the master controller includes：
Processor 61, memory 62, bus 63 and communication interface 64.Connected between processor 61, memory 62 and communication interface 64 by bus 63 and complete mutual communication.
Processor 61 may be monokaryon or multinuclear CPU（Central Process ing Unit, CPU), or be specific integrated circuit (Appl icat ion Specific Integrated Circuit, ASIC), or to be configured to implement one or more integrated circuits of the embodiment of the present invention.
Memory 62 can be high-speed RAM memory, or nonvolatile memory (non-volati le memory), for example, at least one magnetic disk storage.
The communication interface 64 is used to communicate to connect with master control set, node and/or slave controller.Memory 62 is used to deposit program 621.Specifically, can include program code in program 621, described program code includes computer-managed instruction.
The operation program 621 of processor 61, to perform：
It is destination node configuration control rule corresponding with the node type according to node type；The control rule is sent to the destination node, so that the destination node is configured according to the control rule.
Specifically, the method that master controller provided in an embodiment of the present invention carries out the network configuration based on SDN, may refer to the implementation described in above-mentioned corresponding embodiment of the method, here is omitted.
Fig. 7 is the structural representation of the communication system provided in an embodiment of the present invention based on SDN, as shown in fig. 7, the communication system includes： Master control set 1, at least one node 2, and at least one master controller 3;Communicated to connect between the master control set 1, the node 2 and the master controller 3.
Jin mono- Walk, at least one slave controller can also be included in the communication system.
Specifically, the method that the communication system provided in an embodiment of the present invention based on SDN carries out the network configuration based on SDN, may refer to the implementation described in above-mentioned corresponding embodiment of the method, here is omitted.
One of ordinary skill in the art will appreciate that：Realize that above method embodiment full portions or Bu Fen Walk can be completed by the related hardware of programmed instruction suddenly, foregoing program can be stored in a computer read/write memory medium, upon execution, it is rapid that execution includes above method embodiment Walk to the program；And foregoing storage medium includes：R0M, RAM, magnetic disc or CD etc. are various can be with the medium of store program codes.
Finally it should be noted that：Various embodiments above is merely illustrative of the technical solution of the present invention, rather than its limitations；Although the present invention is described in detail with reference to foregoing embodiments, it will be understood by those within the art that：It can still modify to the technical scheme described in foregoing embodiments, or carry out equivalent substitution to which part or all technical characteristic；And these modifications or replacement, the essence of appropriate technical solution is departed from the scope of various embodiments of the present invention technical scheme.

Claims (1)

  1. Claims
    1st, a kind of network collocating method based on software defined network SDN, it is characterised in that including：When judging to exist the master controller for needing to change, the node identification for the destination node for needing to change master controller is obtained；
    According to the load state information of the SDN controllers of other in controller pool, the master controller updated is distributed for the destination node, the controller pool includes at least one SDN controller, and the master controller of the renewal is the SDN controllers in the controller pool；
    The node identification is sent to the master controller of the renewal, the node type of destination node corresponding to the node identification is obtained for the master controller of the renewal, it is regular for destination node configuration control corresponding with the node type, and the control rule is sent to the destination node.
    2nd, the network collocating method according to claim 1 based on SDN, it is characterised in that the load state information according to the SDN controllers of other in controller pool, is that the master controller that the destination node distribution updates includes：
    It is the master controller that the destination node distributes the renewal according to the weights of other SDN controllers in the controller pool, the weights of each SDN controllers are the numerical value distributed according to load state information.
    3rd, the network collocating method according to claim 2 based on SDN, it is characterised in that described when judging to exist the master controller for needing to change, obtaining the node identification for the destination node for needing to change master controller includes：
    When judging to exist the failure master controller broken down, in the node serviced from the failure master controller, obtain node identification of the weights more than or equal to the destination node of threshold value of slave controller, the slave controller is after the failure master controller breaks down, to be used as the SDN controllers of the standby master controller of the destination node.
    4th, the network collocating method according to claim 2 based on SDN, it is characterised in that described when judging to exist the master controller for needing to change, obtaining the node identification for the destination node for needing to change master controller includes：
    When judging to exist the overload master controller overloaded, the node identification of overload master controller institute service node is obtained；
    The quantity for the node that the overload master controller is serviced is reduced, until the weights of the overload master controller are less than or equal to threshold value； The node that the overload master controller is no longer serviced obtains the node identification of the destination node as destination node.
    5th, according to any described network collocating method based on SDN in claim 1-4, it is characterised in that methods described also includes：
    The controller identifier of the master controller of the renewal is sent to the destination node, so that the destination node carries the solicited message of the node type to the corresponding SDN controllers transmission of the controller identifier, so that the master controller of the renewal is according to the solicited message, it is regular for destination node configuration control corresponding with the node type, and the control rule is sent to the destination node.
    6th, a kind of network collocating method based on SDN, it is characterised in that including：
    Receive the control rule that the master controller updated is sent；
    Wherein, the master controller of the renewal is that master control set is judging there is the master controller that needs are changed, and obtain need change master controller destination node node identification after, it is the SDN controllers of the destination node distribution according to the load state information of the SDN controllers of other in controller pool;The control rule is that the master controller of the renewal obtains the corresponding node type of the node identification, is the rule for being used to control corresponding with the node type of the destination node configuration；The controller pool includes at least one SDN controller, and the master controller of the renewal is the SDN controllers in the controller pool；
    Configured according to the control rule.
    7th, the network collocating method according to claim 6 based on SDN, it is characterised in that methods described also includes：
    The controller identifier that the master control set is sent is received, the controller identifier is the identification information of the controller of the renewal；
    The solicited message for carrying the node type is sent to the corresponding SDN controllers of the controller identifier, so that the master controller of the renewal is according to the solicited message, it is destination node configuration control rule corresponding with the node type.
    8th, a kind of network collocating method based on SDN, it is characterised in that including：
    It is destination node configuration control rule corresponding with the node type according to node type；The control rule is sent to the destination node, so that the destination node is configured according to the control rule. 9th, the network collocating method according to claim 8 based on SDN, it is characterised in that described according to node type, is that destination node configuration control rule corresponding with the node type includes：
    Receive the node identification that master control set is sent, the node identification is the master control set when judging to exist the master controller for needing to change, and the identification information of the destination node of master controller is changed the need for acquisition；
    According to the node identification, the node type of the destination node corresponding to the node identification is obtained；
    For destination node configuration control rule corresponding with the node type.
    10th, the network collocating method according to claim 8 based on SDN, it is characterised in that described according to node type, is that destination node configuration control rule corresponding with the node type includes：
    Receive the solicited message for carrying the node type that the destination node is sent；
    It is destination node configuration control rule corresponding with the node type according to the solicited message.
    11, according to any described network collocating method based on SDN in claim 8- 10, it is characterised in that methods described also includes：
    Load state information is sent to the master control set, so that the master control set is judging there is the master controller for needing to change, and get need change master controller destination node node identification after, it is the master controller that the destination node distribution updates according to the load state information for other SDN controllers being connected in controller pool with the node；The controller pool includes at least one SDN controller, and the master controller of the renewal is the SDN controllers in the controller pool.
    12nd, according to any described network collocating method based on SDN in claim 8- 10, it is characterised in that methods described also includes：
    If breaking down, failure message is sent to the master control set；Or
    If overloading, overload message is sent to the master control set.
    13rd, a kind of master control set, it is characterised in that including：
    Acquiring unit, for when judging to exist the master controller for needing to change, obtaining the node identification for the destination node for needing to change master controller；
    Processing unit, for the load state information according to the SDN controllers of other in controller pool, be The master controller that the destination node distribution updates, the controller pool includes at least one SDN controller, and the master controller of the renewal is the SDN controllers in the controller pool；
    Transmitting element, master controller for the node identification to be sent to the renewal, the node type of destination node corresponding to the node identification is obtained for the master controller of the renewal, it is regular for destination node configuration control corresponding with the node type, and the control rule is sent to the destination node.
    14th, master control set according to claim 13, it is characterised in that the processing unit is additionally operable to：
    It is the master controller that the destination node distributes the renewal according to the weights of other SDN controllers in the controller pool, the weights of each SDN controllers are the numerical value distributed according to load state information.
    15th, master control set according to claim 14, it is characterised in that the acquiring unit is additionally operable to：
    When judging to exist the failure master controller broken down, in the node serviced from the failure master controller, obtain node identification of the weights more than or equal to the destination node of threshold value of slave controller, the slave controller is after the failure master controller breaks down, to be used as the SDN controllers of the standby master controller of the destination node.
    16th, master control set according to claim 14, it is characterised in that the acquiring unit is additionally operable to：
    When judging to exist the overload master controller overloaded, the node identification of overload master controller institute service node is obtained；The quantity for the node that the overload master controller is serviced is reduced, until the weights of the overload master controller are less than or equal to threshold value；The node that the overload master controller is no longer serviced obtains the node identification of the destination node as destination node.
    17th, according to any described master control set in claim 13- 16, it is characterised in that the transmitting element is additionally operable to：
    The controller identifier of the master controller of the renewal is sent to the destination node, so that the destination node carries the solicited message of the node type to the corresponding SDN controllers transmission of the controller identifier, so that the master controller of the renewal is according to the solicited message, it is regular for destination node configuration control corresponding with the node type, and the control rule is sent to the destination node. 18th, a kind of node, it is characterised in that including：
    Receiving unit, the control rule that the master controller updated for receiving is sent；
    Wherein, the master controller of the renewal is that master control set is judging there is the master controller that needs are changed, and obtain need change master controller destination node node identification after, it is the SDN controllers of the destination node distribution according to the load state information of the SDN controllers of other in controller pool;The control rule is that the master controller of the renewal obtains the corresponding node type of the node identification, is the rule for being used to control corresponding with the node type of the destination node configuration；The controller pool includes at least one SDN controller, and the master controller of the renewal is the SDN controllers in the controller pool；
    Dispensing unit, for being configured according to the control rule.
    19th, node according to claim 18, it is characterised in that the receiving unit is additionally operable to：
    The controller identifier that the master control set is sent is received, the controller identifier is the identification information of the controller of the renewal；
    Correspondingly, the node also includes：
    Transmitting element, the solicited message of the node type is carried for being sent to the corresponding SDN controllers of the controller identifier, so that the master controller of the renewal is according to the solicited message, it is destination node configuration control rule corresponding with the node type.
    20th, a kind of master controller, it is characterised in that including：
    Processing unit, for according to node type, being destination node configuration control rule corresponding with the node type；
    Transmitting element, for the control rule to be sent into the destination node, so that the destination node is configured according to the control rule.
    21st, master controller according to claim 20, it is characterised in that the processing unit is additionally operable to：
    Receive the node identification that master control set is sent, the node identification is the master control set when judging to exist the master controller for needing to change, and the identification information of the destination node of master controller is changed the need for acquisition；According to the node identification, the node type of the destination node corresponding to the node identification is obtained；For destination node configuration control rule corresponding with the node type.
    22nd, master controller according to claim 20, it is characterised in that the processing unit It is additionally operable to：
    Receive the solicited message for carrying the node type that the destination node is sent；It is destination node configuration control rule corresponding with the node type according to the solicited message.
    23rd, according to any described master controller in claim 20-22, it is characterised in that the transmitting element is additionally operable to：
    Load state information is sent to the master control set, so that the master control set is judging there is the master controller for needing to change, and get need change master controller destination node node identification after, it is the master controller that the destination node distribution updates according to the load state information for other SDN controllers being connected in controller pool with the node；The controller pool includes at least one SDN controller, and the master controller of the renewal is the SDN controllers in the controller pool.
    24th, according to any described master controller in claim 20-22, it is characterised in that the transmitting element is additionally operable to：
    When breaking down, failure message is sent to the master control set；Or
    When overloading, overload message is sent to the master control set.
    25th, a kind of master control set, it is characterised in that including：
    Processor, memory, bus and communication interface；The processor, the memory, the communication interface are connected by the bus and complete mutual communication；
    The communication interface, for being communicated to connect with the node as described in claim 18 or 19, is communicated to connect, and/or communicated to connect with slave controller with the master controller as described in any in claim 20-24；
    The memory, for depositing program；
    The processor, for performing described program；
    Wherein, described program is used to, when judging to exist the master controller for needing to change, obtain the node identification for the destination node for needing to change master controller；
    According to the load state information of the SDN controllers of other in controller pool, the master controller updated is distributed for the destination node, the controller pool includes at least one SDN controller, and the master controller of the renewal is the SDN controllers in the controller pool；
    The node identification is sent to the master controller of the renewal, the node type of destination node corresponding to the node identification is obtained for the master controller of the renewal, it is regular for destination node configuration control corresponding with the node type, and the control rule is sent to the destination node. 26th, a kind of node, it is characterised in that including：
    Processor, memory, bus and communication interface；The processor, the memory, the communication interface are connected by the bus and complete mutual communication；
    The communication interface, is communicated to connect with the master control set as described in any in claim 13- 17, and is communicated to connect with the master controller as described in any in claim 20-24, and/or is communicated to connect with slave controller；
    The communication interface is used to receive the control rule that the master controller updated is sent；
    Wherein, the master controller of the renewal is that master control set is judging there is the master controller that needs are changed, and obtain need change master controller destination node node identification after, it is the SDN controllers of the destination node distribution according to the load state information of the SDN controllers of other in controller pool;The control rule is that the master controller of the renewal obtains the corresponding node type of the node identification, is the rule for being used to control corresponding with the node type of the destination node configuration；The controller pool includes at least one SDN controller, and the master controller of the renewal is the SDN controllers in the controller pool；
    The memory, for depositing program；
    The processor, for performing described program；
    Wherein, described program is used to be configured according to the control rule.
    27th, a kind of master controller, it is characterised in that including：
    Processor, memory, bus and communication interface；The processor, the memory, the communication interface are connected by the bus and complete mutual communication；
    The communication interface, for being communicated to connect with the master control set as described in any in claim 13-17, is communicated to connect, and/or communicated with slave controller with the node as described in claim 18 or 19；
    The memory, for depositing program；
    The processor, for performing described program；
    Wherein, described program is used for according to node type, is destination node configuration control rule corresponding with the node type；The control rule is sent to the destination node, so that the destination node is configured according to the control rule.
    28th, a kind of communication system based on SDN, it is characterised in that including master control set as described in any in claim 13-17 or as claimed in claim 25, at least one is such as claim 18 Described in 19 or node as claimed in claim 26, and at least one as described in any in claim 20-24 or master controller as claimed in claim 27；
    Communicated to connect between the master control set, the node and the master controller.
CN201380035267.8A 2013-05-06 2013-05-06 Network collocating method, apparatus and system based on SDN Expired - Fee Related CN104412560B (en)

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