CN104184661A - Service back-fitting control method and device - Google Patents
Service back-fitting control method and device Download PDFInfo
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- CN104184661A CN104184661A CN201410427760.0A CN201410427760A CN104184661A CN 104184661 A CN104184661 A CN 104184661A CN 201410427760 A CN201410427760 A CN 201410427760A CN 104184661 A CN104184661 A CN 104184661A
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Abstract
The embodiment of the invention discloses a service back-fitting control method and device and relates to the technical field of communication. The service back-fitting control method and device can solve the problem that in a layered network, back-fitting of service can not be conducted in time or the service is interrupted in the back-fitting process because set port delay fluorescent lifetime or router delay release time is inconsistent with recovery time of a sub service period 1 and a sub service period 2. The method comprises the steps that the states of the sub service periods are monitored, wherein the sub service periods are connected with failure nodes, the states of the sub service periods comprise a recovery state which is the state obtained after failure of the sub service periods is recovered; when all the sub service periods are in the recovery state, the service back-fitting process is executed. The service back-fitting control method and device are suitable for head nodes in the layered network.
Description
Technical field
The present invention relates to communication technical field, relate in particular to a kind of method and device of service control switchback.
Background technology
At present, part IP/MPLS (Internet Protocol/Multi-Protocol Label Switching, agreement/the multiprotocol label switching interconnecting between network) mode of network using layering networking, route isolation between different levels network, lower floor's network is only known default gateway route, and default gateway is generally interlayer device node.As shown in Figure 1, for layering group-network construction figure, be divided into three layers, PE (Provider Edge, router is provider edge router) 1 for head-end node, PE2 is interlayer device node, and PE1 can be divided into primary path and backup path to the service path of PE6, and primary path is by the link of PE2 and PE4 to PE6 by PE1; Other links are backup path.Link between PE1 and PE2 is subservice field 1, and the link between PE2 and PE4 is subservice field 2, and PE1 sends message by subservice field 1 to PE2 in real time.In the time of PE2 node failure, subservice field 1 and subservice field 2 enter malfunction, the message that PE1 sends to PE2 cannot be sent to, business can switch to the backup path consisting of PE3, PE5, PE4 to PE6 link PE1 by primary path, now with respect to PE1, subservice field 1 is called near-end subservice field, and subservice field 2 is called far-end subservice field; In the time that PE2 node failure recovers, PE1 to PE2 send message successfully send to, determine that subservice field 1 recovers, PE1 by business by backup path switchback to primary path.In the process of service switchback, because the subservice field in adjacent layer there are differences recovery time, so may having precedence over subservice field 2, recovers subservice field 1, and PE1 determines that subservice field 1 recovers the rear service switchback of carrying out, now subservice field 2 is still in malfunction, and business there will be service disconnection at PE2 node.Available technology adopting port time delay luminescence technology or routing delay distribution technology avoid service disconnection, the port that is PE2 connexon traffic segment 1 sets in advance certain port time delay fluorescent lifetime or routing delay issuing time, after PE2 node recovers, need to wait for the port time delay fluorescent lifetime or the routing delay issuing time that set in advance, business just can be by backup path switchback to primary path again.
In prior art, at least there are the following problems: port time delay fluorescent lifetime or routing delay issuing time are all that people sets in advance, in the time that route quantity is excessive, the time that subservice field 1 or subservice field 2 recover can exceed the port time delay fluorescent lifetime or the routing delay issuing time that set in advance, and then subservice field 1 or subservice field 2 do not recover while making service switchback, business still there will be interruption; If set in advance longer port time delay fluorescent lifetime or routing delay issuing time, can exceed the time that subservice field 1 and subservice field 2 recover, and then after primary path fault recovery, business is switchback in time, increase the backup path operating time, increase network risks, be unfavorable for the optimization utilization of Internet resources.
Summary of the invention
Embodiments of the invention provide a kind of method and device of service control switchback, can solve due to the port time delay fluorescent lifetime or the routing delay issuing time that arrange, with the Time Inconsistency that subservice field 1 and subservice field 2 recover, cause business to occur in time the problem of service disconnection when switchback or switchback.
For achieving the above object, embodiments of the invention adopt following technical scheme:
First aspect, embodiments of the invention provide a kind of method of service control switchback, comprising:
The state of monitoring subservice field, described subservice field is the subservice field being connected with malfunctioning node, the state of described subservice field comprises and returning to form, described in return to form as the state after described subservice field fault recovery;
In the time returning to form described in the state of described subservice field is, carry out service switchback flow process.
Second aspect, embodiments of the invention provide a kind of device of service control switchback, comprising:
Monitoring means, for monitoring the state of subservice field, described subservice field is the subservice field being connected with malfunctioning node, the state of described subservice field comprises and returning to form, described in return to form as the state after described subservice field fault recovery;
Switchback unit, in the time returning to form described in the state of described subservice field is, carries out service switchback flow process.
Method and the device of the service control switchback that the embodiment of the present invention provides, in the present invention, head-end node is monitored the state of the each subservice field being connected with malfunctioning node; When the state of each subservice field is while returning to form, carry out service switchback flow process.With the port time delay fluorescent lifetime arranging in prior art or routing delay issuing time, the Time Inconsistency recovering with subservice field 1 and subservice field 2, cause business to occur that in time service disconnection compares when switchback or switchback, the present invention can carry out in time service switchback after subservice field recovers, avoid network risks, there will not be again the phenomenon of service disconnection.
Brief description of the drawings
In order to be illustrated more clearly in the technical scheme in the embodiment of the present invention, to the accompanying drawing of required use in embodiment be briefly described below, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skill in the art, do not paying under the prerequisite of creative work, can also obtain according to these accompanying drawings other accompanying drawing.
The layering group-network construction schematic diagram that Fig. 1 provides for prior art;
The method flow diagram that Fig. 2 provides for one embodiment of the invention;
The method flow diagram that Fig. 3 provides for further embodiment of this invention;
The message structure schematic diagram that Fig. 4 provides for further embodiment of this invention;
The apparatus structure schematic diagram that Fig. 5, Fig. 6 provide for further embodiment of this invention.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is clearly and completely described, obviously, described embodiment is only the present invention's part embodiment, instead of whole embodiment.Based on the embodiment in the present invention, those of ordinary skill in the art, not making all other embodiment that obtain under creative work prerequisite, belong to the scope of protection of the invention.
One embodiment of the invention provides a kind of method of service control switchback, for framework as shown in Figure 1, and after PE2 fault recovery, the process of head-end node PE1 service control switchback, as shown in Figure 2, described method comprises:
101, the state of PE1 monitoring subservice field.
Wherein, subservice field is the subservice field being connected with malfunctioning node, and the state of subservice field comprises and returning to form, and returns to form as the state after subservice field fault recovery.
Optionally, subservice field comprises far-end subservice field and near-end subservice field, and far-end subservice field is the subservice field not being connected with head-end node, and near-end subservice field is the subservice field being connected with head-end node.
Further, in the time that subservice field is far-end subservice field, before the state of PE1 monitoring subservice field, can also receive the message that malfunctioning node sends the status indicator that carries subservice field, the status indicator of subservice field is added by malfunctioning node, so that PE1 is by the state of packet check subservice field.
Further, the state of PE1 monitoring subservice field can be the state of the status indicator monitoring subservice field by subservice field.
Optionally, PE1 by the detailed process of the state of the status indicator monitoring subservice field of subservice field is: whether the status indicator that judges subservice field is the mark that returns to form; In the time that the status indicator of subservice field identifies for returning to form, determine that the state of subservice field is for returning to form; In the time that the status indicator of subservice field is malfunction mark, continue the state of monitoring subservice field.
102, when the state of subservice field is while returning to form, PE1 carries out service switchback flow process.
Optionally, when the state of subservice field is while returning to form, before PE1 carries out service switchback flow process, the subservice field state machine that can also set in advance is set to return to form, for identifying the state of subservice field, and convenient detection.
In the present invention, head-end node is monitored the state of the each subservice field being connected with malfunctioning node; When the state of each subservice field is while returning to form, carry out service switchback flow process.With the port time delay fluorescent lifetime arranging in prior art or routing delay issuing time, the Time Inconsistency recovering with subservice field 1 and subservice field 2, cause business to occur that in time service disconnection compares when switchback or switchback, the present invention can carry out in time service switchback after subservice field recovers, avoid network risks, there will not be again the phenomenon of service disconnection.
Further embodiment of this invention provides a kind of method of service control switchback, for framework as shown in Figure 1, after PE2 fault recovery, the process of head-end node PE1 service control switchback, subservice field 1 is near-end subservice field, subservice field 2 is far-end subservice field, as shown in Figure 3, described method comprises:
201, PE1 sends detection messages to PE2.
Wherein, PE1 can send detection messages to PE2 in real time, determines that whether subservice field 1 is in normal operating conditions, and the type of message does not limit.When PE1 sends detection messages success to PE2, determine that subservice field 1 is in normal operating conditions; When PE1 sends detection messages failure to PE2, determine that subservice field 1 is in malfunction.
It should be noted that, PE1 determines whether subservice field 1 is not limited in to PE2 and sends detection messages one in the mode of normal operating conditions, can be any mode that can realize in prior art.
202, PE1 judges whether detection messages sends successfully, if detection messages sends successfully, performs step 203; If detection messages does not send successfully, continue execution step 201.
Wherein, in the time of PE2 fault, the detection messages that PE1 can not successfully send to PE2, subservice field 1 is in malfunction; In the time of PE2 fault recovery, the detection messages that PE1 can successfully send to PE2, subservice field 1 is in fault recovery state.Therefore,, if PE1 detection messages sends successfully, subservice field 1, in fault recovery state, performs step 203; If detection messages does not send successfully, subservice field 1, in malfunction, continues execution step 202.
203, the state machine that PE1 arranges subservice field 1 correspondence is for recovering UP state.
Wherein, the state machine of subservice field 1 correspondence is for setting in advance, for the state that represents that subservice field 1 is current.When subservice field 1 is during in fault recovery state, the state machine of subservice field 1 correspondence is for recovering UP state.Execute after this step execution step 210.
204, PE2 sends detection messages to PE4.
Wherein, this step data handling procedure is identical with step 201, does not repeat them here.
205, PE2 judges whether detection messages sends successfully, if detection messages sends successfully, performs step 206; If detection messages does not send successfully, continue execution step 204.
Wherein, in the time of PE2 fault, the detection messages that PE2 can not successfully send to PE4, subservice field 2 is in malfunction; In the time of PE2 fault recovery, the detection messages that PE2 can successfully send to PE4, subservice field 2 is in fault recovery state.Therefore,, if PE2 detection messages sends successfully, subservice field 2, in fault recovery state, performs step 206; If detection messages does not send successfully, subservice field 2, in malfunction, continues execution step 204.
206, PE2 is by CV (Connectivity Verification, detection of connectivity) message reserved field primary importance 1.
Wherein, in the embodiment of the present invention, by MPLS OAM (the Operation Administration and Maintenance of expansion, operation management maintain) the machine-processed state that identifies subservice field 2, by first of CV message reserved field, for identifying the state of subservice field 2, CV message structure as shown in Figure 4.
It should be noted that, in system business processing procedure, PE2 can send CV message to PE1 in real time, and under state, first of CV message reserved field is 0 conventionally; When subservice field 2 is during in fault recovery state, PE2 is set to 1 by first of CV message reserved field by 0.
207, CV message is sent to PE1 by PE2.
Wherein, the CV message that PE2 is 1 by first of reserved field is sent to PE1, for notifying the state of PE1 subservice field 2 in fault recovery state.
208, PE1 judges that whether CV message reserved field primary importance is 1, if CV message reserved field primary importance is 1, performs step 209; If CV message reserved field primary importance is not 1, continue execution step 208.
Wherein, PE1 judges first of CV message reserved field receiving whether 1, when CV message reserved field primary importance is 1, represents that subservice field 2 is in fault recovery state, execution step 208; In the time that first of CV message reserved field is 0, represent that subservice field 2 is not in fault recovery state, need first of the CV message reserved field continuing receiving to judge.
209, the state machine that PE1 arranges subservice field 2 correspondences is for recovering UP state, and to PE2 feedback message.
Wherein, the state machine of subservice field 2 correspondences is for setting in advance, for the state that represents that subservice field 2 is current.When subservice field 2 is during in fault recovery state, the state machine of subservice field 2 correspondences is for recovering UP state.Then, PE1, to PE2 feedback message, represents that PE1 has known that subservice field 2 is in fault recovery state.
It should be noted that, after the state machine that PE1 arranges subservice field 2 correspondences is UP state, first of the CV message reserved field no longer PE2 being sent is judged, until fault detection mechanism detects subservice field 2 in the time of malfunction, the state machine that PE1 arranges subservice field 2 correspondences is fault DOWN state, and first of CV message reserved field who continues PE2 to send judge, execution step 208.
It should be noted that, execute after this step, perform step 210 and step 211 simultaneously.
210, PE2 stops CV message reserved field primary importance 1.
Wherein, PE2 is receiving after the feedback message of PE1, stops first of CV message reserved field to be set to 1 by 0.Execute after this step, do not need to perform step 211.
211, PE1 judges whether the state machine of subservice field 1 and subservice field 2 correspondences is the UP state that recovers; Recover UP state if the state machine of subservice field 1 and subservice field 2 correspondences is, perform step 212; If the state machine of subservice field 1 and subservice field 2 correspondences is not the UP state that recovers, continue execution step 211.
212, PE1 carries out business switching flow, and business is switched to primary path.
In the present invention, head-end node is monitored the state of the each subservice field being connected with malfunctioning node; When the state of each subservice field is while returning to form, carry out service switchback flow process.With the port time delay fluorescent lifetime arranging in prior art or routing delay issuing time, the Time Inconsistency recovering with subservice field 1 and subservice field 2, cause business to occur that in time service disconnection compares when switchback or switchback, the present invention can carry out in time service switchback after subservice field recovers, avoid network risks, there will not be again the phenomenon of service disconnection.
Further embodiment of this invention provides the head-end node device 30 in a kind of layering networking, and as shown in Figure 5, described device 30 comprises:
Monitoring means 31, for monitoring the state of subservice field, described subservice field is the subservice field being connected with malfunctioning node, the state of described subservice field comprises and returning to form, described in return to form as the state after described subservice field fault recovery;
Switchback unit 32, in the time returning to form described in the state of described subservice field is, carries out service switchback flow process.
Wherein, described subservice field comprises far-end subservice field and near-end subservice field, and described far-end subservice field is the subservice field not being connected with head-end node, and described near-end subservice field is the subservice field being connected with described head-end node.
Further, as shown in Figure 6, described device 30 can also comprise:
Receiving element 33, the message sending for receiving described malfunctioning node, described message carries the status indicator of described subservice field, and the status indicator of described subservice field is added by described malfunctioning node.
Further, as shown in Figure 6, described monitoring means 31 comprises:
Monitoring subelement 311, for monitoring the state of described subservice field by the status indicator of described subservice field.
Further, as shown in Figure 6, described monitoring subelement 311 specifically for:
Whether the status indicator that judges described subservice field is the mark that returns to form;
When the status indicator of described subservice field is when returning to form mark, the state of determining described subservice field returns to form described in being;
In the time that the status indicator of described subservice field is malfunction mark, continue the state of the described subservice field of monitoring.
Further, as shown in Figure 6, described device 30 can also comprise:
Setting unit 34, returns to form described in being for state machine that described subservice field is corresponding is set, and described state machine is for setting in advance.
In the present invention, head-end node is monitored the state of the each subservice field being connected with malfunctioning node; When the state of each subservice field is while returning to form, carry out service switchback flow process.With the port time delay fluorescent lifetime arranging in prior art or routing delay issuing time, the Time Inconsistency recovering with subservice field 1 and subservice field 2, cause business to occur that in time service disconnection compares when switchback or switchback, the present invention can carry out in time service switchback after subservice field recovers, avoid network risks, there will not be again the phenomenon of service disconnection.
The above-mentioned embodiment of the method providing can be provided head-end node device in the layering networking that the embodiment of the present invention provides, and concrete function is realized the explanation referring in embodiment of the method, does not repeat them here.Head-end node method and device in the layering networking that the embodiment of the present invention provides go for the head-end node in layering networking, but are not limited only to this.
Each embodiment in this specification all adopts the mode of going forward one by one to describe, between each embodiment identical similar part mutually referring to, what each embodiment stressed is and the difference of other embodiment.Especially,, for apparatus embodiments, because it is substantially similar in appearance to embodiment of the method, so describe fairly simplely, relevant part is referring to the part explanation of embodiment of the method.
One of ordinary skill in the art will appreciate that all or part of flow process realizing in above-described embodiment method, can carry out the hardware that instruction is relevant by computer program to complete, described program can be stored in a computer read/write memory medium, this program, in the time carrying out, can comprise as the flow process of the embodiment of above-mentioned each side method.Wherein, described storage medium can be magnetic disc, CD, read-only store-memory body (Read-Only Memory, ROM) or random store-memory body (Random Access Memory, RAM) etc.
The above; be only the specific embodiment of the present invention, but protection scope of the present invention is not limited to this, any be familiar with those skilled in the art the present invention disclose technical scope in; the variation that can expect easily or replacement, within all should being encompassed in protection scope of the present invention.Therefore, protection scope of the present invention should be as the criterion with the protection range of claim.
Claims (10)
1. a method for service control switchback, is characterized in that, comprising:
The state of monitoring subservice field, described subservice field is the subservice field being connected with malfunctioning node, the state of described subservice field comprises and returning to form, described in return to form as the state after described subservice field fault recovery;
In the time returning to form described in the state of described subservice field is, carry out service switchback flow process.
2. method according to claim 1, it is characterized in that, described subservice field comprises far-end subservice field and near-end subservice field, and described far-end subservice field is the subservice field not being connected with head-end node, and described near-end subservice field is the subservice field being connected with described head-end node.
3. method according to claim 2, is characterized in that, in the time that described subservice field is described far-end subservice field, before the state of described monitoring subservice field, described method also comprises:
Receive the message that described malfunctioning node sends, described message carries the status indicator of described subservice field, and the status indicator of described subservice field is added by described malfunctioning node;
The state of described monitoring subservice field comprises:
Monitor the state of described subservice field by the status indicator of described subservice field.
4. method according to claim 3, is characterized in that, the state that the described status indicator by described subservice field is monitored described subservice field comprises:
Whether the status indicator that judges described subservice field is the mark that returns to form;
When the status indicator of described subservice field is when returning to form mark, the state of determining described subservice field returns to form described in being;
In the time that the status indicator of described subservice field is malfunction mark, continue the state of the described subservice field of monitoring.
5. method according to claim 1, is characterized in that, before described execution service switchback flow process, described method also comprises:
Described in state machine that described subservice field is corresponding is set is, return to form, described state machine is for setting in advance.
6. a device for service control switchback, is characterized in that, comprising:
Monitoring means, for monitoring the state of subservice field, described subservice field is the subservice field being connected with malfunctioning node, the state of described subservice field comprises and returning to form, described in return to form as the state after described subservice field fault recovery;
Switchback unit, in the time returning to form described in the state of described subservice field is, carries out service switchback flow process.
7. device according to claim 6, it is characterized in that, described subservice field comprises far-end subservice field and near-end subservice field, and described far-end subservice field is the subservice field not being connected with head-end node, and described near-end subservice field is the subservice field being connected with described head-end node.
8. device according to claim 7, is characterized in that, described device also comprises:
Receiving element, the message sending for receiving described malfunctioning node, described message carries the status indicator of described subservice field, and the status indicator of described subservice field is added by described malfunctioning node; Described monitoring means comprises:
Monitoring subelement, for monitoring the state of described subservice field by the status indicator of described subservice field.
9. device according to claim 8, is characterized in that, described monitoring subelement specifically for:
Whether the status indicator that judges described subservice field is the mark that returns to form;
When the status indicator of described subservice field is when returning to form mark, the state of determining described subservice field returns to form described in being;
In the time that the status indicator of described subservice field is malfunction mark, continue the state of the described subservice field of monitoring.
10. device according to claim 6, is characterized in that, described device also comprises:
Setting unit, returns to form described in being for state machine that described subservice field is corresponding is set, and described state machine is for setting in advance.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104518960A (en) * | 2014-12-05 | 2015-04-15 | 华为技术有限公司 | Delayed back-switching method, devices and system |
| CN112866030A (en) * | 2021-02-03 | 2021-05-28 | 挂号网（杭州）科技有限公司 | Flow switching method, device, equipment and storage medium |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101150587A (en) * | 2007-10-24 | 2008-03-26 | 华为技术有限公司 | A method, device and system for traffic switching of multi-protocol label switching traffic engineering |
| CN102035711A (en) * | 2009-09-24 | 2011-04-27 | 中兴通讯股份有限公司 | Method and system for preventing address table from being refreshed repeatedly in protection of Ethernet ring |
| CN102315987A (en) * | 2011-09-13 | 2012-01-11 | 中兴通讯股份有限公司 | Ring network protection group link switching method and device |
-
2014
- 2014-08-27 CN CN201410427760.0A patent/CN104184661B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101150587A (en) * | 2007-10-24 | 2008-03-26 | 华为技术有限公司 | A method, device and system for traffic switching of multi-protocol label switching traffic engineering |
| WO2009056053A1 (en) * | 2007-10-24 | 2009-05-07 | Huawei Technologies Co, .Ltd. | A method, device and system of multi-protocol label exchange traffic engineering flow capacity switch |
| CN102035711A (en) * | 2009-09-24 | 2011-04-27 | 中兴通讯股份有限公司 | Method and system for preventing address table from being refreshed repeatedly in protection of Ethernet ring |
| CN102315987A (en) * | 2011-09-13 | 2012-01-11 | 中兴通讯股份有限公司 | Ring network protection group link switching method and device |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104518960A (en) * | 2014-12-05 | 2015-04-15 | 华为技术有限公司 | Delayed back-switching method, devices and system |
| CN104518960B (en) * | 2014-12-05 | 2018-01-19 | 华为技术有限公司 | A kind of method, equipment and the system of the switchback that is delayed |
| US11146484B2 (en) | 2014-12-05 | 2021-10-12 | Huawei Technologies Co., Ltd. | Method, device, and system for deferring switchback |
| CN112866030A (en) * | 2021-02-03 | 2021-05-28 | 挂号网（杭州）科技有限公司 | Flow switching method, device, equipment and storage medium |
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