CN105490867A - Bidirectional forwarding detection control method and device - Google Patents
Bidirectional forwarding detection control method and device Download PDFInfo
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- CN105490867A CN105490867A CN201410528124.7A CN201410528124A CN105490867A CN 105490867 A CN105490867 A CN 105490867A CN 201410528124 A CN201410528124 A CN 201410528124A CN 105490867 A CN105490867 A CN 105490867A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L43/00—Arrangements for monitoring or testing data switching networks
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Abstract
The invention discloses a bidirectional forwarding detection control method relating to the communication technical field, solving the problem of unnecessary resource waste in the prior art resulted from falsely triggering link protection inversion in the process of maintaining bidirectional forwarding detection. The method comprises that: when a first terminal device receives a BFD (bidirectional forwarding detection) deleting instruction of a user, a BFD deleting indication message is sent to a second terminal device; the first terminal device stops sending a BFD detection message to the second terminal device according to the BFD deleting instruction.
Description
Technical field
The present invention relates to communication technical field, particularly relate to control method and the device of the detection of a kind of two-way converting.
Background technology
At the IP (InternetProtocol of telecommunication service; internetworking agreement) change the promotion of trend under; the business of transmission network carrying is from TDM (Time-DivisionMultiplexing; time division multiplexing) be main to IP for main transformation; accordingly; also PTN (PacketTransportNetwork is just needed; Packet Transport Network) effectively transmit Packet Service and carrier class OAM (operationadministrationandmaintenance, operation management maintain) and protection are provided.
At PTN (PacketTransportNetwork; Packet Transport Network) generally adopt BFD (bidirectionalforwardingdetection in equipment; two-way converting detects) protocol component and pretection switch component complete the detection of Forwarding plane; and complete pretection switch in the stipulated time of BFD detection time after fault of forwarding plane occurs, thus the impact that the fault of Forwarding plane produces is reduced to minimum.BFD any channel type between the systems can carry out fault detect, as direct physical link, virtual circuit, tunnel, multihop routing passage, and the passage etc. of non-immediate, the fast detecting forwarding fault can be absorbed in, make network with good QoS (QualityofService, service quality) realize the transmission of voice, video and other demand (telecommunication) service, thus help service provider based on the realization of IP network, for client provides required high reliability, high applicability VoIP (voiceoverIP, the networking telephone) and other real time business.
General, in a repeater system, the initiating terminal of every bar link and clearing end arrange a BFD example.In the maintenance process of BFD, in order to the route of adaptive system adjusts, usually need delete the BFD example in terminal or add.After at one end equipment manually deletes BFD example; this end equipment can stop sending BFD detection messages; but opposite equip. BFD example is not yet deleted and is thus still being carried out alarm detection; will think that link there occurs fault by mistake when the BFD example of opposite equip. does not receive detection messages like this; and trigger link pretection switch, cause the unnecessary wasting of resources.
Summary of the invention
The technical problem to be solved in the present invention is to provide control method and the device of the detection of a kind of two-way converting, carries out easy false triggering link protection change when two-way converting detection is safeguarded, cause the problem of the unnecessary wasting of resources in order to solve in prior art.
On the one hand, the invention provides the control method that a kind of two-way converting detects, comprising: first end equipment, when receiving the BFD delete instruction of user, sends BFD to the second end equipment and deletes Indication message; Described first end equipment, according to described BFD delete instruction, stops sending BFD detection messages to described second end equipment.
Optionally, described to second end equipment send BFD delete Indication message comprise: to described second end equipment send stop administrative message.
Further, described first end equipment is according to described BFD delete instruction, and stop to after described second end equipment sends BFD detection messages, described method also comprises: the BFD session of described first end unit deletion self.
On the other hand, the control method that the present invention also provides a kind of two-way converting to detect, comprising: the second end equipment receives the BFD deletion Indication message that first end equipment sends; Described second end equipment deletes Indication message according to the described BFD received, and stops alarm detection.
Further, after described stopping alarm detection, described method also comprises: the BFD session of described second end unit deletion self; Or described second end equipment retains the BFD session of self, and the state of alarm detection is stopped to send to described first end equipment self.
On the other hand, the control device that the present invention also provides a kind of two-way converting to detect, comprising: transmitting element, for when receiving the BFD delete instruction of user, sending BFD delete Indication message to the second end equipment; Stop detection notice unit, for according to described BFD delete instruction, after described transmitting element sends BFD deletion Indication message to described second end equipment, stop sending BFD detection messages to described second end equipment.
Optionally, described transmitting element stops administrative message specifically for sending to described second end equipment.
Further, also comprising: delete cells, to after described second end equipment sends BFD detection messages, deleting BFD session for stopping at described stopping detection notice unit.
On the other hand, the control device that the present invention also provides a kind of two-way converting to detect, comprising: receiving element, and the BFD sent for receiving first end equipment deletes Indication message; Stop detection unit, deletes Indication message for the BFD received according to described receiving element, stops alarm detection.
Further, described device also comprises Dialog processing unit, after stopping alarm detection in described stop detection unit, deletes BFD session; Or after stopping alarm detection in described stop detection unit, retain BFD session, and will the state of alarm detection be stopped to send to described first end equipment.
The control method that the two-way converting that the embodiment of the present invention provides detects and device, when receiving the BFD delete instruction of user, be in no hurry to stop sending BFD detection messages, but first send BFD deletion Indication message to the second end equipment, to notify that the BFD example of the second end equipment local terminal is by deleted, and then according to described BFD delete instruction, stop sending BFD detection messages to the second end equipment, the second end equipment so just can be made to know in advance, and local device is about to stop sending BFD detection messages, the second end equipment that avoids is when can not receive BFD detection messages, the wasting of resources of pretection switch circuit caused by false triggering, effectively improve ease for use and the maintainability of PTN device network design.
Accompanying drawing explanation
Fig. 1 is a kind of flow chart of the control method of the two-way converting detection that the embodiment of the present invention provides;
Fig. 2 is the another kind of flow chart of the control method of the two-way converting detection that the embodiment of the present invention provides;
Fig. 3 is a kind of structural representation of the Executive Module corresponding to control method of the two-way converting detection that the embodiment of the present invention provides;
Fig. 4 is a kind of connection diagram of the system that the control method of the two-way converting detection that the embodiment of the present invention provides is applied;
Fig. 5 is a kind of detail flowchart of first end equipment work in the control method of the two-way converting detection that the embodiment of the present invention provides;
Fig. 6 is a kind of detail flowchart of the second end equipment work in the control method of the two-way converting detection that the embodiment of the present invention provides;
Fig. 7 is a kind of structural representation of the control device of the two-way converting detection that the embodiment of the present invention provides;
Fig. 8 is the another kind of structural representation of the control device of the two-way converting detection that the embodiment of the present invention provides.
Embodiment
Below in conjunction with accompanying drawing, the present invention is described in detail.Should be appreciated that specific embodiment described herein only in order to explain the present invention, do not limit the present invention.
As shown in Figure 1, the control method that embodiments of the invention provide a kind of two-way converting to detect, comprising:
S11, first end equipment, when receiving the BFD delete instruction of user, sends BFD to the second end equipment and deletes Indication message;
S12, described first end equipment, according to described BFD delete instruction, stops sending BFD detection messages to described second end equipment.
The control method that the two-way converting that the embodiment of the present invention provides detects, when receiving the BFD delete instruction of user, be in no hurry to stop sending BFD detection messages, but first send BFD deletion Indication message to the second end equipment, to notify that the BFD example of the second end equipment local terminal is by deleted, and then according to described BFD delete instruction, stop sending BFD detection messages to the second end equipment, the second end equipment so just can be made to know in advance, and local device is about to stop sending BFD detection messages, the second end equipment that avoids is when can not receive BFD detection messages, the wasting of resources caused by false triggering pretection switch circuit, effectively improve ease for use and the maintainability of PTN device network design.
In PTN device Network Dept.; the BFD example disposed in a device usually can manually adjust or delete; such as; user can assign instruction to first end equipment; the BFD example relating to certain link communication in first end equipment is deleted in instruction; so in step s 11, the BFD of local terminal, after receiving this BFD delete instruction, can be deleted Indication message and send to the second end equipment by first end equipment further.Optionally, in one embodiment of the invention, sending BFD deletion Indication message to the second end equipment can be: send to described second end equipment and stop management admindown message.Certainly, in other embodiments of the invention, BFD deletes Indication message and also can send with other forms, as long as the second end equipment can be made to know, local terminal is about to delete BFD example, and embodiments of the invention are not restricted this.
Optionally, in step S12, after first end equipment can delete Indication message sending to the second end equipment BFD, stop sending BFD detection messages to described second end equipment, also can stop sending BFD detection messages to the second end equipment after the second end equipment returns corresponding acknowledge message, embodiments of the invention do not limit this again.
Further, stop in step s 12 to after described second end equipment sends BFD detection messages, described method also can comprise: the BFD session of described first end unit deletion self, thus cuts off with the second end equipment and contact.
Accordingly, as shown in Figure 2, the control method that embodiments of the invention also provide a kind of two-way converting to detect, comprising:
S21, the second end equipment receives the BFD deletion Indication message that first end equipment sends;
S22, described second end equipment deletes Indication message according to the described BFD received, and stops alarm detection.
The control method that the two-way converting that the embodiment of the present invention provides detects, when the BFD example in first end equipment will deleted time, second end equipment can receive advance first end equipment send BFD delete Indication message, and delete Indication message according to the BFD received, timely stopping alarm detection, the second end equipment so just can be made to know in advance, and first end equipment is about to stop sending BFD detection messages, the second end equipment that avoids is when can not receive BFD detection messages, the wasting of resources of pretection switch circuit caused by false triggering, thus effectively improve ease for use and the maintainability of PTN device network design.
Further, after the stopping alarm detection of step S22, the control method that the two-way converting that the embodiment of the present invention provides detects also can comprise: the BFD session of the second end unit deletion self; Or the second end equipment retains the BFD session of self, and the state of alarm detection is stopped to send to described first end equipment self.Concrete transmission times and frequency can set as the case may be, and twice adjacent transmission can interval identical time, also can interval different time, and embodiments of the invention are not construed as limiting this.Knowing that in order to make first end equipment the second end equipment stopped alarm detection in time, preferably, feedback message can also be sent to first end equipment after step S22 stops alarm detection.
Below by specific embodiment, the control method that two-way converting provided by the invention detects is described in detail.
As shown in Figure 3, in one embodiment of the invention, the transmitting terminal (corresponding to first end equipment) and receiving terminal (corresponding to the second end equipment) of a detection link are all deployed with corresponding BFD example, and each BFD example can comprise substantially as lower module:
BFD protocol component, for the maintenance of the foundation and state that complete BFD protocol conversation;
BFD alarm detection component, for completing the detection of the various alarm of BFD;
Pretection switch component, for the alarm according to BFD, completes the pretection switch of link;
Forwarding plane component, for the transmitting-receiving of the various messages of finishing equipment.
Wherein, BFD protocol component can notify that the detection of alarm is opened or closed to BFD alarm detection component.BFD alarm detection component can notify that pretection switch component carries out pretection switch.Forwarding plane component provides the passage of packet sending and receiving for BFD protocol component and BFD alarm detection component.Each module specific works step is as follows:
Step one, transmitting terminal user configure BFD example.Receiving terminal user configures BFD example.Then terminal device carries out the connection establishment of BFD session, and after this process, the session at two ends becomes UP state.
After step 2, terminal device BFD session become UP state, the BFD protocol component of transmitting terminal notifies that the BFD alarm detection component of self sends BFD detection messages and carries out the detection of alarm.
If step 3 wherein one end equipment user deletes BFD example, then the BFD protocol component of self sends the message of admindown to opposite equip..And then notify that the BFD alarm detection component of self stops sending BFD detection messages and closing alarm detection, finally the BFD protocol component of self deletes the BFD session of oneself.
Step 4, opposite equip. receive the message of admindown, admindown message are issued respectively BFD protocol component and BFD alarm detection component.After BFD alarm detection component receives the message of admindown, then stop alarm detection.After BFD protocol component receives admindown message, delete the BFD session of oneself.Optionally, after BFD protocol component receives admindown message, also session can be preserved, and regularly the message of transmission stat=down state, to opposite end, is waited for and is re-established session.
It should be noted that, BFD is bidirectional transmission detecting protocol, and the forwarding for both direction can both detect, and the transmitting terminal therefore described in above-described embodiment and receiving terminal can exchange.
As shown in Figure 4; in another embodiment of the present invention; at one based in the communication link of NTP; a business of user configure network devices NE1 to network equipment NE4; and be this business configuration two forward-paths: main path NE1-NE2-NE4 and standby path NE1-NE3-NE4, and establish link protection.Foundation and the course of work of the BFD example of composition graphs 4 to Fig. 6 two links are as follows:
Step one, configure BFD example NE1 and NE4 user.
Step 2, BFD session establishment
NE1 and NE4 carries out the connection establishment of BFD session, and after this process, the BFD session of NE1 and NE4 becomes UP state.NE1 is normal through the service operation of main path NE1-NE2-NE4 to NE4 simultaneously.
Step 3, BFD alarm detection
After the BFD session of NE1 and NE4 becomes UP state, the BFD protocol component notice BFD alarm detection component of NE1 sends BFD detection messages and carries out alarm detection.NE1 is normal through the service operation of main path NE1-NE2-NE4 to NE4 simultaneously.
Step 4, manually deletion BFD session
NE1 manually deletes BFD session, then the BFD protocol component of NE1 first send admindown message through Forwarding plane component to NE4.Then NE1 reinforms the BFD alarm detection component stopping transmission BFD detection messages of self and closes alarm detection, and the BFD protocol component of last NE1 deletes the BFD session of oneself.Now NE1 is normal through the service operation of main path NE1-NE2-NE4 to NE4.
NE4 receives the message of the admindown that NE1 sends over.Then admindown message is issued BFD protocol component and the BFD alarm detection component of self by the Forwarding plane component of NE4 simultaneously.After BFD alarm detection component receives the message of admindown, then stop alarm detection.After BFD protocol component receives admindown message, delete the BFD session of oneself or still preserve session, regularly sending the message of stat=down state to opposite end, wait for and re-establish session.In the process, NE1 is normal through the service operation of main path NE1-NE2-NE4 to NE4, pretection switch does not occur.
Accordingly, as shown in Figure 7, the control device 3 that embodiments of the invention also provide a kind of two-way converting to detect, comprising:
Transmitting element 30, for when receiving the BFD delete instruction of user, sending BFD to the second end equipment and deleting Indication message;
Stop detection notice unit 32, for according to described BFD delete instruction, after described transmitting element sends BFD deletion Indication message to described second end equipment, stop sending BFD detection messages to described second end equipment.
The control device 3 that the two-way converting that the embodiment of the present invention provides detects, when receiving the BFD delete instruction of user, be in no hurry to stop sending BFD detection messages, but first send BFD deletion Indication message by transmitting element 30 to the second end equipment, to notify that the BFD example of the second end equipment self is by deleted, again by stopping detection notice unit 32 according to described BFD delete instruction, stop sending BFD detection messages to the second end equipment, the second end equipment so just can be made to know in advance, and first end equipment is about to stop sending BFD detection messages, the second end equipment that avoids is when can not receive BFD detection messages, the wasting of resources of pretection switch circuit caused by false triggering, effectively improve ease for use and the maintainability of PTN device network design.
Optionally, transmitting element 30 stops management admindown message specifically for sending to the second end equipment.
Further, the control device 3 that two-way converting detects also can comprise delete cells, to after the second end equipment sends BFD detection messages, deletes BFD session for stopping at stopping detection notice unit 32.
Accordingly, as shown in Figure 8, the control device 4 that a kind of two-way converting detects, comprising:
Receiving element 40, the BFD sent for receiving first end equipment deletes Indication message;
Stop detection unit 42, deletes Indication message for the BFD received according to described receiving element, stops alarm detection.
The control device 4 that the two-way converting that the embodiment of the present invention provides detects, when the BFD example in first end equipment will deleted time, receiving element 40 can receive advance first end equipment send BFD delete Indication message, stop detection unit 42 can delete Indication message according to the BFD received, and stops alarm detection in time.The second end equipment so just can be made to know in advance, and first end equipment is about to stop sending BFD detection messages; the second end equipment that avoids is when can not receive BFD detection messages; the wasting of resources of pretection switch circuit caused by false triggering, thus the ease for use and the maintainability that effectively improve PTN device network design.
Further, the control device 4 that two-way converting detects can also comprise Dialog processing unit, after stopping alarm detection in stop detection unit 42, deletes BFD session; Or after stopping alarm detection in stop detection unit 42, retain BFD session, and will the state of alarm detection be stopped to send to described first end equipment.
Although be example object, disclose the preferred embodiments of the present invention, it is also possible for those skilled in the art will recognize various improvement, increase and replacement, and therefore, scope of the present invention should be not limited to above-described embodiment.
Claims (10)
1. a control method for two-way converting detection, is characterized in that, comprising:
First end equipment, when the two-way converting receiving user detects BFD delete instruction, sends BFD to the second end equipment and deletes Indication message;
Described first end equipment, according to described BFD delete instruction, stops sending BFD detection messages to described second end equipment.
2. method according to claim 1, is characterized in that, described to second end equipment send BFD delete Indication message comprise:
Send to described second end equipment and stop administrative message.
3. method according to claim 1, is characterized in that, described first end equipment is according to described BFD delete instruction, and stop to after described second end equipment sends BFD detection messages, described method also comprises:
The BFD session of described first end unit deletion self.
4. a control method for two-way converting detection, is characterized in that, comprising:
Second end equipment receives the BFD deletion Indication message that first end equipment sends;
Described second end equipment deletes Indication message according to the described BFD received, and stops alarm detection.
5. method according to claim 4, is characterized in that, after described stopping alarm detection, described method also comprises:
The BFD session of described second end unit deletion self;
Or
Described second end equipment retains the BFD session of self, and stops the state of alarm detection to send to described first end equipment self.
6. a control device for two-way converting detection, is characterized in that, comprising:
Transmitting element, for when receiving the BFD delete instruction of user, sending BFD to the second end equipment and deleting Indication message;
Stop detection notice unit, for according to described BFD delete instruction, after described transmitting element sends BFD deletion Indication message to described second end equipment, stop sending BFD detection messages to described second end equipment.
7. device according to claim 6, is characterized in that, described transmitting element stops administrative message specifically for sending to described second end equipment.
8. device according to claim 6, is characterized in that, also comprises:
Delete cells, to after described second end equipment sends BFD detection messages, deletes BFD session for stopping at described stopping detection notice unit.
9. a control device for two-way converting detection, is characterized in that, comprising:
Receiving element, the BFD sent for receiving first end equipment deletes Indication message;
Stop detection unit, deletes Indication message for the BFD received according to described receiving element, stops alarm detection.
10. device according to claim 9, is characterized in that, also comprises Dialog processing unit, after stopping alarm detection in described stop detection unit, deletes BFD session; Or after stopping alarm detection in described stop detection unit, retain BFD session, and will the state of alarm detection be stopped to send to described first end equipment.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410528124.7A CN105490867A (en) | 2014-10-09 | 2014-10-09 | Bidirectional forwarding detection control method and device |
| PCT/CN2015/078313 WO2016054913A1 (en) | 2014-10-09 | 2015-05-05 | Bidirectional forwarding detection control method and apparatus |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410528124.7A CN105490867A (en) | 2014-10-09 | 2014-10-09 | Bidirectional forwarding detection control method and device |
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| CN105490867A true CN105490867A (en) | 2016-04-13 |
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| CN201410528124.7A Pending CN105490867A (en) | 2014-10-09 | 2014-10-09 | Bidirectional forwarding detection control method and device |
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| WO (1) | WO2016054913A1 (en) |
Cited By (1)
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| CN107846292A (en) * | 2016-09-19 | 2018-03-27 | 新华三技术有限公司 | The method and apparatus for preventing troubleshooting from postponing |
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| CN117278345B (en) * | 2023-11-20 | 2024-02-13 | 新华三技术有限公司 | Energy saving method and device applied to network equipment |
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| CN101079759B (en) * | 2007-07-24 | 2010-07-21 | 杭州华三通信技术有限公司 | Distributed bidirectional forwarding detection method and device |
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| CN101340380A (en) * | 2008-08-11 | 2009-01-07 | 中兴通讯股份有限公司 | Method and apparatus for uninterrupted forwarding of bi-directional forwarding detection in master-slave switch implementation |
| CN101425942A (en) * | 2008-12-09 | 2009-05-06 | 华为技术有限公司 | Method, apparatus and system for bidirectional forwarding detection implementation |
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| CN107846292A (en) * | 2016-09-19 | 2018-03-27 | 新华三技术有限公司 | The method and apparatus for preventing troubleshooting from postponing |
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Application publication date: 20160413 |