CN105227385A - A kind of method and system of troubleshooting - Google Patents
A kind of method and system of troubleshooting Download PDFInfo
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- CN105227385A CN105227385A CN201510769865.9A CN201510769865A CN105227385A CN 105227385 A CN105227385 A CN 105227385A CN 201510769865 A CN201510769865 A CN 201510769865A CN 105227385 A CN105227385 A CN 105227385A
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Abstract
The invention discloses a kind of method of troubleshooting, relate to communication technical field, for solving the communication disruption problem because controller failure causes.Method provided by the invention comprises: when the communication disruption with described 2nd SDN controller being detected, and a SDN controller, by presetting communication format, sends acknowledge message to other SDN controller be connected with described 2nd SDN controller; When not receiving the feedback information of other SDN controller described in Preset Time, then a described SDN controller reports the fault message of the 2nd SDN controller to described network manager; Described network manager is after the fault message receiving described 2nd SDN controller, record the malfunction of described 2nd SDN controller, and to distribute in a described SDN controller and other SDN controller described one or more manages by belonging to originally in the network element of described 2nd SDN controller management.The present invention is applicable in SDN.
Description
Technical field
The present invention relates to communication technical field, particularly relate to a kind of method and system of troubleshooting.
Background technology
Software defined network (SoftDefinednetwork, SDN) is a kind of novel network architecture, and its design concept is separated with data retransmission plane network-based control plane, and realizes programmable control.Based on the network architecture of SDN, equipment vendor needs research and development to support switch, the router product of the agreements such as Openflow, research and development simultaneously can manage the SDN controller of multiple devices, controller and equipment room, by Openflow protocol communication, complete the functions such as such as control information issues, Route establishment, Link Resource Manager.
Because the progress of each producer research and development SDN equipment and control device is different, be difficult at present realize the equipment that single SDN controller well manages multiple producer.Manage large scale network, present stage often through lay multiple SDN controller, man of each Self management our factory equipment or only a small amount of different plant equipment method realize.When having occurred multiple SDN controller in network, so each controller will divide the work to manage a part of network element, because each manufacturer is different for the design of SDN controller, the SDN controller of different vendor is caused to communicate, once certain SDN controller breaks down, other SDN controller cannot take over its business, causes part net element business to interrupt.
Summary of the invention
Embodiments of the invention provide a kind of method and system of troubleshooting, when SDN controller breaks down, can ensure that the net element business that it manages does not interrupt.
For achieving the above object, embodiments of the invention adopt following technical scheme:
Embodiments provide a kind of method of troubleshooting, be applied to SDN, it is characterized in that, described SDN comprises network manager and several SDN controllers, several controllers described comprise a SDN controller, the 2nd SDN controller, and described method comprises:
When the communication disruption with described 2nd SDN controller being detected, one SDN controller is by presetting communication format, acknowledge message is sent to other SDN controller be connected with described 2nd SDN controller, to make other SDN controller described after receiving described acknowledge message, described acknowledge message is sent to described 2nd SDN controller to confirm the running status of the 2nd SDN controller by described default communication format;
When not receiving the feedback information of other SDN controller described in Preset Time, then a described SDN controller reports the fault message of the 2nd SDN controller to described network manager;
Described network manager is after the fault message receiving described 2nd SDN controller, record the malfunction of described 2nd SDN controller, and to distribute in a described SDN controller and other SDN controller described one or more manages by belonging to originally in the network element of described 2nd SDN controller management.
The embodiment of the present invention additionally provides a kind of system of troubleshooting, is applied to SDN, and the system of described troubleshooting comprises network manager and several SDN controllers, and several controllers described comprise a SDN controller, the 2nd SDN controller;
A described SDN controller, for when the communication disruption with described 2nd SDN controller being detected, by default communication format, acknowledge message is sent to other SDN controller be connected with described 2nd SDN controller, to make other SDN controller described after receiving described acknowledge message, described acknowledge message is sent to described 2nd SDN controller to confirm the running status of the 2nd SDN controller by described default communication format; When not receiving the feedback information of other SDN controller described in Preset Time, then report the fault message of the 2nd SDN controller to described network manager;
Described network manager is used for after the fault message receiving described 2nd SDN controller, record the malfunction of described 2nd SDN controller, and to distribute in a described SDN controller and other SDN controller described one or more manages by belonging to originally in the network element of described 2nd SDN controller management.
The method and system of a kind of troubleshooting that the embodiment of the present invention provides, clog-free data interaction is ensured by the default communication format that provides alternately for SDN controller, simultaneously when SDN controller goes wrong time, can by the coordination of the mutual and network manager between SDN controller for NE management, each network element can be served in time, avoid the service disconnection of network element.
Accompanying drawing explanation
In order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
The method flow diagram of a kind of troubleshooting that Fig. 1 provides for the embodiment of the present invention;
The method flow diagram of a kind of fault detect that Fig. 2 provides for the embodiment of the present invention;
The method flow diagram of the another kind of troubleshooting that Fig. 3 provides for the embodiment of the present invention;
Fig. 4 for a kind of fault SDN controller that the embodiment of the present invention provides recover normal after the method flow diagram of adapter network element again;
The system composition diagram of a kind of troubleshooting that Fig. 5 provides for the embodiment of the present invention.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, be clearly and completely described the technical scheme in the embodiment of the present invention, obviously, described embodiment is only the present invention's part embodiment, instead of whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art, not making other embodiments all obtained under creative work prerequisite, belong to the scope of protection of the invention.
Embodiments provide a kind of method of troubleshooting, be applied to SDN, need in this SDN to arrange network manager and several SDN controllers, be relations on an equal basis between all SDN controllers mentioned in the embodiment of the present invention, mutually can peer switch information, network manager is to sending instructions under SDN controller.Each SDN controller by correspondence can need to set in advance according to network.
Based on the above-mentioned network architecture, the fault handling method that the embodiment of the present invention provides, as shown in Figure 1, comprising:
101, when the communication disruption with described 2nd SDN controller being detected, one SDN controller is by presetting communication format, acknowledge message is sent to other SDN controller be connected with described 2nd SDN controller, to make other SDN controller described after receiving described acknowledge message, described acknowledge message is sent to described 2nd SDN controller to confirm the running status of the 2nd SDN controller by described default communication format.
When communicating between multiple SDN controller, preset communication format as shown in table 1 below, be divided into controller relation identity, transmit control device ID, receive controller ID, 8 territories such as message priority, type of message, message content, counter and check digit.The SDN controller of difference in functionality, all by identifying that the SDN controller that these 8 territories are adjacent connects, realizes communication function, and in the message format of definition, the implication in each territory is as shown in table 1.
The table 1SDN each domain identifier of controller communication message and implication
102, when the feedback information not receiving other SDN controller described in Preset Time, then a described SDN controller reports the fault message of the 2nd SDN controller to described network manager.
Before step 102 performs, a SDN controller generally needs the adjacency table stored according to self to search the SDN controller adjacent with described 2nd SDN controller.
In the notice to network manager reporting fault information, a SDN controller generally also needs the malfunction of record the 2nd SDN controller.In addition, other SDN controller can knowing that the 2nd SDN controller breaks down also needs the malfunction of record the 2nd SDN controller.
Wherein, Preset Time is the value according to the setting of user's actual needs.
103, described network manager is after the fault message receiving described 2nd SDN controller, record the malfunction of described 2nd SDN controller, and to distribute in a described SDN controller and other SDN controller described one or more manages by belonging to originally in the network element of described 2nd SDN controller management.
The method of a kind of troubleshooting that the embodiment of the present invention provides, clog-free data interaction is ensured by the default communication format that provides alternately for SDN controller, simultaneously when SDN controller goes wrong time, can by the coordination of the mutual and network manager between SDN controller for NE management, each network element can be served in time, avoid the service disconnection of network element.
The embodiment of the present invention additionally provides a kind of method for detecting SDN controller failure at this, performs and before step 101, as shown in Figure 2, comprising:
201, a described SDN controller sends the message of specified type to described 2nd SDN controller cycle by described default communication format.
Information interaction in embodiments of the present invention between SDN controller can be divided into the serial message of normal condition and the large class of instant message two in emergency circumstances.When equipment is working properly, can serial message be used to link up between two or more controllers of fixing duration, inform the state information of controller, inform configuration messages, carry out project query and report and the general communication etc. such as to issue with resource.When having service alarm, network node or link failure to occur, according to circumstances alarm information and failure message can be issued at any time by instant message.
The message of volume specified type described herein just refers to serial message.
202, when the feedback information not receiving described 2nd SDN controller in described Preset Time, then think and the communication disruption of described 2nd SDN controller.
For the realization of step 105, the embodiment of the present invention there is provided herein a kind of concrete implementation method, as shown in Figure 3, comprising:
301, when described network manager by belong to originally in the network element of described 2nd SDN controller management distribute to a described SDN controller manage time, described network manager sends adapter instruction to a described SDN controller.
302, a described SDN controller is after the described adapter instruction of reception, and the network element to described 2nd SDN controller management sends the first notification message, and the network element belonged to originally in described 2nd SDN controller management in order to notice is taken over by a described SDN controller.
303, a described SDN controller receives the net element information of the reported by network elements belonged to originally in described 2nd SDN controller management.
304, the corresponding relation of the net element information received and described net element information and a described SDN controller is stored in maintenance of information table by a described SDN controller.
The corresponding relation of the described net element information herein stored and a described SDN controller is that conveniently follow-up 2nd SDN controller is replied normally, again can take over the network element of original service.By setting up such corresponding relation, which is oneself to make the SDN controller of each adapter can know the network element under oneself managing, which is fault SDN controller, like this after fault SDN controller recovers normally, other SDN controllers directly can find the net element information of adapter in the maintenance of information table of self, and return to and recover normal SDN controller, so that it takes over original network element again, realize load balancing.
305, a described SDN controller determines whether to take over the whole network elements belonged to originally in described 2nd SDN controller management according to self-bearing capacity.When determining to take over the whole network element belonged to originally in described 2nd SDN controller management, then perform step 306; When determining to take over the part network element belonged to originally in described 2nd SDN controller management, then perform step 307.
306, a SDN controller starts the management to the network element belonged to originally in described 2nd SDN controller management.
307, the net element information of adapter network element is reported to described network manager by a SDN controller, assigns adapter instruction to make described network controller to one or more in other SDN controller described.
It should be noted that at this, other SDN controller receives the adapter instruction that network manager assigns can perform abovementioned steps 302 to 307 equally.
Above flow process is applicable to any one other SDN controller adjacent with the 2nd SDN controller.Only carried out process description for a SDN controller herein.The Rule of judgment that adapter instruction assigned by which SDN controller of network manager prioritizing selection can set as required, and such as which SDN controller preferentially reports the 2nd SDN controller to break down, then which SDN controller of prioritizing selection.
In embodiments of the present invention, after also recovering normally for fault SDN controller, corresponding implementation method is provided to the adapter flow process again of network element, as shown in Figure 4, comprising:
401, when described 2nd SDN controller recovers normally, described network manager issues recovery control command to all SDN controllers, and described recovery control command is for notifying that the whole network elements belonged to originally in described 2nd SDN controller management taken over again by each SDN controller the 2nd SDN controller.
402, after receiving described recovery control command, a described SDN controller is determined by the net element information of adapter network element according to described maintenance of information table, described by adapter network element for be taken over by a described SDN controller, but belong to the network element in described 2nd SDN controller management originally.
403, the described net element information by adapter network element is reported to described network manager by a described SDN controller.
404, the described net element information by adapter network element is sent to described 2nd SDN controller by described network manager.
405, described 2nd SDN controller is sent second notification message to described by adapter network element according to described net element information, in order to notify describedly to be taken over by described 2nd SDN controller by adapter network element.
406, described 2nd SDN controller starts described by the management of adapter network element.
It should be noted that, above flow process is applicable to the SDN controller of network element belonging to any one taking over fault SDN controller.In embodiments of the present invention, network manager is generally unified issues recovery control command to all SDN controllers, only has the SDN controller having taken over network element belonging to fault SDN controller just to need to perform above flow process.
In addition, it should be added that, each SDN controller, by after being reported to network manager by the net element information of adapter network element, just can remove relative recording to save self storage resources after the scheduled time.Also can be disconnected with the SDN controller of earlier communication after this scheduled time by adapter network element simultaneously, obtain communication with the normal SDN controller of recovery simultaneously.
The embodiment of the present invention additionally provides a kind of system of troubleshooting, be applied to SDN, as shown in Figure 5, the system of described troubleshooting comprises network manager 51 and several SDN controllers, and several controllers described comprise a SDN controller 52, the 2nd SDN controller 53.
A described SDN controller 52, for when the communication disruption with described 2nd SDN controller 53 being detected, by default communication format, acknowledge message is sent to other SDN controller be connected with described 2nd SDN controller 53, to make other SDN controller described after receiving described acknowledge message, described acknowledge message is sent to described 2nd SDN controller 53 to confirm the running status of the 2nd SDN controller 53 by described default communication format; When not receiving the feedback information of other SDN controller described in Preset Time, then report the fault message of the 2nd SDN controller 53 to described network manager 51;
Described network manager 51 is for after the fault message receiving described 2nd SDN controller 53, record the malfunction of described 2nd SDN controller 53, and manage belonging to one or more that the network element managed in described 2nd SDN controller 53 distributes in a described SDN controller 52 and other SDN controller described originally.
Optionally, a described SDN controller 52 is also for periodically sending the message of specified type to described 2nd SDN controller 53 by described default communication format; When not receiving the feedback information of described 2nd SDN controller 53 in described Preset Time, then think and the communication disruption of described 2nd SDN controller 53.
Optionally, the adjacency table of a described SDN controller 52 also for storing according to self searches the SDN controller adjacent with described 2nd SDN controller 53.
Optionally, described network manager 51 specifically for when by belong to originally the network element managed in described 2nd SDN controller 53 distribute to a described SDN controller 52 manage time, described network manager 51 sends adapter instruction to a described SDN controller 52;
A described SDN controller 52 is also for after the described adapter instruction of reception, the network element managed to described 2nd SDN controller 53 sends the first notification message, belongs to the network element managed in described 2nd SDN controller 53 originally taken over by a described SDN controller 52 in order to notice; Receive the net element information belonging to the reported by network elements managed in described 2nd SDN controller 53 originally; The corresponding relation of the net element information received and described net element information and a described SDN controller 52 is stored in maintenance of information table; Determine whether to take over the whole network elements belonging to originally and manage in described 2nd SDN controller 53 according to self-bearing capacity; When determining to take over the whole network element belonging to originally and manage in described 2nd SDN controller 53, then start the management to belonging to the network element managed in described 2nd SDN controller 53 originally; When determining to take over the part network element belonging to originally and manage in described 2nd SDN controller 53, then the net element information of adapter network element is reported to described network manager 51, assign adapter instruction to make described network controller to one or more in other SDN controller described.
Optionally, described network manager 51 is also for recovering when described 2nd SDN controller 53 normally, issue recovery control command to all SDN controllers, described recovery control command is for notifying that the whole network elements belonging to originally and manage in described 2nd SDN controller 53 taken over again by each SDN controller the 2nd SDN controller 53;
A described SDN controller 52 is also for after receiving described recovery control command, determine by the net element information of adapter network element according to described maintenance of information table, described by adapter network element for be taken over by a described SDN controller 52, but belong to originally in described 2nd SDN controller 53 manage network element; The described net element information by adapter network element is reported to described network manager 51;
Described network manager 51 is also for sending to described 2nd SDN controller 53 by the described net element information by adapter network element;
Described 2nd SDN controller 53 also for being sent second notification message to described by adapter network element according to described net element information, in order to notify describedly to be taken over by described 2nd SDN controller 53 by adapter network element; Start described by the management of adapter network element.
The system of a kind of troubleshooting that the embodiment of the present invention provides, clog-free data interaction is ensured by the default communication format that provides alternately for SDN controller, simultaneously when SDN controller goes wrong time, can by the coordination of the mutual and network manager between SDN controller for NE management, each network element can be served in time, avoid the service disconnection of network element.
Through the above description of the embodiments, those skilled in the art can be well understood to the mode that the present invention can add required common hardware by software and realize, and can certainly pass through hardware, but in a lot of situation, the former is better execution mode.Based on such understanding, technical scheme of the present invention can embody with the form of software product the part that prior art contributes in essence in other words, this computer software product is stored in the storage medium that can read, as the floppy disk of computer, hard disk or CD etc., comprise some instructions and perform method described in each embodiment of the present invention in order to make a computer equipment (can be personal computer, server, or the network equipment etc.).
The above; be only the specific embodiment of the present invention, but protection scope of the present invention is not limited thereto, is anyly familiar with those skilled in the art in the technical scope that the present invention discloses; change can be expected easily or replace, all should be encompassed within protection scope of the present invention.Therefore, protection scope of the present invention should be as the criterion with the protection range of described claim.
Claims (10)
1. a method for troubleshooting, is applied to SDN, it is characterized in that, described SDN comprises network manager and several SDN controllers, and several controllers described comprise a SDN controller, the 2nd SDN controller, and described method comprises:
When the communication disruption with described 2nd SDN controller being detected, one SDN controller is by presetting communication format, acknowledge message is sent to other SDN controller be connected with described 2nd SDN controller, to make other SDN controller described after receiving described acknowledge message, described acknowledge message is sent to described 2nd SDN controller to confirm the running status of the 2nd SDN controller by described default communication format;
When not receiving the feedback information of other SDN controller described in Preset Time, then a described SDN controller reports the fault message of the 2nd SDN controller to described network manager;
Described network manager is after the fault message receiving described 2nd SDN controller, record the malfunction of described 2nd SDN controller, and to distribute in a described SDN controller and other SDN controller described one or more manages by belonging to originally in the network element of described 2nd SDN controller management.
2. method according to claim 1, is characterized in that, at a described SDN controller by presetting communication format, before sending acknowledge message, also comprises to other SDN controller be connected with described 2nd SDN controller:
A described SDN controller sends the message of specified type to described 2nd SDN controller cycle by described default communication format;
When not receiving the feedback information of described 2nd SDN controller in described Preset Time, then think and the communication disruption of described 2nd SDN controller.
3. method according to claim 2, is characterized in that, at a described SDN controller by presetting communication format, before sending acknowledge message, also comprises to other SDN controller be connected with described 2nd SDN controller:
One SDN controller searches the SDN controller adjacent with described 2nd SDN controller according to the adjacency table that self stores.
4. method according to claim 3, is characterized in that, to distribute in a described SDN controller and other SDN controller described one or more carries out management and comprise by belonging to originally in the network element of described 2nd SDN controller management for described network manager:
When described network manager by belong to originally in the network element of described 2nd SDN controller management distribute to a described SDN controller manage time, described network manager sends adapter instruction to a described SDN controller;
A described SDN controller is after the described adapter instruction of reception, and the network element to described 2nd SDN controller management sends the first notification message, and the network element belonged to originally in described 2nd SDN controller management in order to notice is taken over by a described SDN controller;
A described SDN controller receives the net element information of the reported by network elements belonged to originally in described 2nd SDN controller management;
The corresponding relation of the net element information received and described net element information and a described SDN controller is stored in maintenance of information table by a described SDN controller;
A described SDN controller determines whether to take over the whole network elements belonged to originally in described 2nd SDN controller management according to self-bearing capacity;
When determining to take over the whole network element belonged to originally in described 2nd SDN controller management, then a SDN controller starts the management to the network element belonged to originally in described 2nd SDN controller management;
When determining to take over the part network element belonged to originally in described 2nd SDN controller management, then the net element information of adapter network element is reported to described network manager by a SDN controller, assigns adapter instruction to make described network controller to one or more in other SDN controller described.
5. method according to claim 4, is characterized in that, also comprises:
When described 2nd SDN controller recovers normally, described network manager issues recovery control command to all SDN controllers, and described recovery control command is for notifying that the whole network elements belonged to originally in described 2nd SDN controller management taken over again by each SDN controller the 2nd SDN controller;
After receiving described recovery control command, a described SDN controller is determined by the net element information of adapter network element according to described maintenance of information table, described by adapter network element for be taken over by a described SDN controller, but belong to the network element in described 2nd SDN controller management originally;
The described net element information by adapter network element is reported to described network manager by a described SDN controller;
The described net element information by adapter network element is sent to described 2nd SDN controller by described network manager;
Described 2nd SDN controller is sent second notification message to described by adapter network element according to described net element information, in order to notify describedly to be taken over by described 2nd SDN controller by adapter network element;
Described 2nd SDN controller starts described by the management of adapter network element.
6. a system for troubleshooting, is applied to SDN, it is characterized in that, the system of described troubleshooting comprises network manager and several SDN controllers, and several controllers described comprise a SDN controller, the 2nd SDN controller;
A described SDN controller, for when the communication disruption with described 2nd SDN controller being detected, by default communication format, acknowledge message is sent to other SDN controller be connected with described 2nd SDN controller, to make other SDN controller described after receiving described acknowledge message, described acknowledge message is sent to described 2nd SDN controller to confirm the running status of the 2nd SDN controller by described default communication format; When not receiving the feedback information of other SDN controller described in Preset Time, then report the fault message of the 2nd SDN controller to described network manager;
Described network manager is used for after the fault message receiving described 2nd SDN controller, record the malfunction of described 2nd SDN controller, and to distribute in a described SDN controller and other SDN controller described one or more manages by belonging to originally in the network element of described 2nd SDN controller management.
7. system according to claim 6, is characterized in that, a described SDN controller is also for sending the message of specified type to described 2nd SDN controller cycle by described default communication format; When not receiving the feedback information of described 2nd SDN controller in described Preset Time, then think and the communication disruption of described 2nd SDN controller.
8. system according to claim 7, is characterized in that, the adjacency table of a described SDN controller also for storing according to self searches the SDN controller adjacent with described 2nd SDN controller.
9. system according to claim 8, it is characterized in that, described network manager specifically for when by belong to originally in the network element of described 2nd SDN controller management distribute to a described SDN controller manage time, described network manager sends adapter instruction to a described SDN controller;
A described SDN controller is also for after the described adapter instruction of reception, and the network element to described 2nd SDN controller management sends the first notification message, and the network element belonged to originally in described 2nd SDN controller management in order to notice is taken over by a described SDN controller; Receive the net element information of the reported by network elements belonged to originally in described 2nd SDN controller management; The corresponding relation of the net element information received and described net element information and a described SDN controller is stored in maintenance of information table; Determine whether to take over the whole network elements belonged to originally in described 2nd SDN controller management according to self-bearing capacity; When determining to take over the whole network element belonged to originally in described 2nd SDN controller management, then start the management to the network element belonged to originally in described 2nd SDN controller management; When determining to take over the part network element belonged to originally in described 2nd SDN controller management, then the net element information of adapter network element is reported to described network manager, assign adapter instruction to make described network controller to one or more in other SDN controller described.
10. system according to claim 9, it is characterized in that, described network manager is also for recovering normally when described 2nd SDN controller, issue recovery control command to all SDN controllers, described recovery control command is for notifying that the whole network elements belonged to originally in described 2nd SDN controller management taken over again by each SDN controller the 2nd SDN controller;
A described SDN controller is also for after receiving described recovery control command, determine by the net element information of adapter network element according to described maintenance of information table, described by adapter network element for be taken over by a described SDN controller, but belong to the network element in described 2nd SDN controller management originally; The described net element information by adapter network element is reported to described network manager;
Described network manager is also for sending to described 2nd SDN controller by the described net element information by adapter network element;
Described 2nd SDN controller also for being sent second notification message to described by adapter network element according to described net element information, in order to notify describedly to be taken over by described 2nd SDN controller by adapter network element; Start described by the management of adapter network element.
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