CN102487304B - Method and device for detecting residual time slot - Google Patents
Method and device for detecting residual time slot Download PDFInfo
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- CN102487304B CN102487304B CN201010570403.1A CN201010570403A CN102487304B CN 102487304 B CN102487304 B CN 102487304B CN 201010570403 A CN201010570403 A CN 201010570403A CN 102487304 B CN102487304 B CN 102487304B
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L12/00—Data switching networks
- H04L12/28—Data switching networks characterised by path configuration, e.g. LAN [Local Area Networks] or WAN [Wide Area Networks]
- H04L12/40—Bus networks
- H04L12/407—Bus networks with decentralised control
- H04L12/417—Bus networks with decentralised control with deterministic access, e.g. token passing
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Abstract
The invention discloses a method and a device for detecting a residual time slot, wherein the method comprises the following steps of: if the time slot is successfully distributed for a business on the current node in the process of establishing a new business connection, applying for distributing the same time slot to a downstream node of the current node; and if the application of distributing the same time slot to the downstream node is failure, detecting whether the downstream node has the residual time slot or not. By using the method and device, provided by the invention, the problems that due to periodic detection, the network load is heavy to influence the network performance, and in-time detection and residual time slot clearing are not carried out because the detection period does not arrive in the prior art are solved.
Description
Technical field
The present invention relates to the communications field, in particular to a kind of method and apparatus that detects remaining time slot.
Background technology
ASON (ASON:Automatic Switched Optical Network) is the focus of field of optical networks research in recent years, be controlled automatic exchange and be connected the optical transfer network of controlling with control plane (CP:Control Plane), follow International Telecommunication Union (ITU-T) standard G.8080.
ASON can realize based on the SDH transport network of specification G.803, also can realize based on the OTN transport network of specification G.872.ASON can be divided into three planes according to function: transmit plane, control plane and management plane, and the data communication network (DCN:Data Communication Network) transmitting for management information and signaling message.Meanwhile, ASON can support three kinds of connections, forever connects PC, soft permanent connection SPC, exchange connection SC.
Under normal circumstances, the time slot state in ASON network between adjacent network element should be consistent, but following situation can cause between adjacent network element time slot state inconsistent.
(1), when user transmits the resource division of interface at configuration TE Link two ends, it is inconsistent that two ends are divided.Such as, to same time slot, A end uses resource division to control plane, and Z end uses resource division to management plane.In fact this situation belongs to user's misoperation, but this misoperation is difficult to avoid completely in real network layoutprocedure.
(2) when bust appears in the transmission plane of ASON network, as transmission node in backbone network or transmission link failure, by a large number of services fault causing through this node or link.If now delete a connection having established, cannot delete all time interval resources that configured by there will be, the time interval resource state that causes both link ends to configure is inconsistent, thereby has formed remaining time slot.This situation unavoidably there will be in ASON network operation process.
If this situation long-term accumulated, can cause that new business is set up unsuccessfully, the business recovery serious problems such as unsuccessfully, also can waste a large amount of Internet resources simultaneously.Therefore,, for remaining time slot, be necessary to detect in time and remove.
At present, for the processing of remaining time slot, be all first whether consistent by the time slot state at ospf protocol or LMP protocol detection TE Link two ends.If inconsistent, delete inconsistent time slot by manual mode or automated manner.Conventionally be periodically to carry out to the detection of TE Link two ends time slot state, and the two ends of each TE Link all need to detect.In a large ASON network, this detection mode can make the load of whole network very heavy, affects the performance of whole network.
Summary of the invention
The invention provides a kind of method and apparatus that detects remaining time slot, to solve in prior art owing to periodically detecting the offered load weight causing, affect network performance, and in sense cycle not to the problem that causes not detecting in time and removing remaining time slot.
According to an aspect of the present invention, a kind of method that detects remaining time slot is provided, comprise the steps:, setting up in the process of new service connection, if be successfully traffic assignments time slot, to distribute identical time slot to the downstream node application of present node on present node; If application to downstream node distributes identical time slot failure, detect downstream node and whether have remaining time slot.
Further, detection downstream node also comprises: detect that downstream node exists remaining time slot, and remove remaining time slot after whether there is the step of remaining time slot.
Whether exist the step of remaining time slot also comprise: judge whether the time slot on downstream node is set to for management plane if further, detecting downstream node; If so, time slot is set to for control plane, and by time slot allocation to business.
Further, judge whether the time slot on downstream node is set to for after management plane, also comprise: if the time slot on downstream node is not set to successfully be assigned to other business for the time slot on management plane and downstream node, detect the moment of application time slot and whether time difference of time slot successfully being distributed between moment of other business is greater than predefined threshold value; If be greater than, remove the time slot on downstream node, and by time slot allocation to business.
Further, judge whether the time slot on downstream node is set to comprise for the step of management plane: use time interval resource object to judge whether the time slot on downstream node is set to for management plane, wherein, time interval resource object is for all time interval resources of certain port on management node.
Further, time interval resource object at least comprises following attribute: time interval resource numbering, for identifying which number time slot that this time slot is STM-N; The administration authority of time interval resource, for identifying, this time slot belongs to control plane use or management plane uses; Use business and the link information of this time interval resource, comprise traffic ID and connection ID information; The time of the last one-tenth of this time slot distribution of work, for representing the last time that is become the distribution of work of this time slot.
According to a further aspect in the invention, a kind of device that detects remaining time slot is provided, has comprised: application unit, for the process setting up new service connection, if be successfully traffic assignments time slot, distribute identical time slot to the downstream node application of present node on present node; Judging unit, for judging that application to downstream node distributes identical time slot whether failed; Detecting unit, in the time applying for distributing identical time slot failure to downstream node, detects downstream node and whether has remaining time slot.
Further, said apparatus also comprises: clearing cell, for detection of there is remaining time slot to downstream node, and remove remaining time slot.
Further, detecting unit comprises: plane judge module, judges whether the time slot on downstream node is set to for management plane; Distribution module, while being set to for management plane for the time slot on downstream node, time slot is set to for control plane, and by time slot allocation to business; When time slot on downstream node is not set to successfully be assigned to other business for the time slot on management plane and downstream node, whether the time difference of detecting between the moment of applying for the moment of time slot and time slot successfully being distributed to other business is greater than predefined threshold value, if be greater than, remove the time slot on downstream node, and by time slot allocation to business.
Further, plane judge module comprises: time interval resource object module, for using time interval resource object to judge whether the time slot on downstream node is set to for management plane, wherein, time interval resource object is for all time interval resources of certain port on management node.
By the present invention, adopt and do not need periodically to detect at all TE Links two ends port, only need in the time setting up in new service connection process applying label failure, detect, thereby solve in prior art owing to periodically detecting the offered load weight causing, affect network performance, and in sense cycle not to the problem that causes not detecting in time and removing remaining time slot, and then reach and saved system resource, improve systematic function, and can not produce the effect of setting up new service connection failure in any case.
Brief description of the drawings
Accompanying drawing described herein is used to provide a further understanding of the present invention, forms the application's a part, and schematic description and description of the present invention is used for explaining the present invention, does not form inappropriate limitation of the present invention.In the accompanying drawings:
Fig. 1 is a kind of detection trigger schematic diagram that detects the method for remaining time slot according to the embodiment of the present invention;
Fig. 2 is a kind of preferred structure block diagram that detects the device of remaining time slot according to the embodiment of the present invention;
Fig. 3 is the another kind of detection trigger schematic diagram that detects the method for remaining time slot according to the embodiment of the present invention;
Fig. 4 is a kind of flow chart that detects the method for remaining time slot according to the embodiment of the present invention;
Fig. 5 is the schematic diagram that detects the wrong remaining time slot causing of user resources division of the method for remaining time slot according to the embodiment of the present invention;
Fig. 6 is the schematic diagram that detects the remaining time slot that the network meltdown of the method for remaining time slot causes according to the embodiment of the present invention.
Embodiment
Hereinafter also describe the present invention in detail with reference to accompanying drawing in conjunction with the embodiments.It should be noted that, in the situation that not conflicting, the feature in embodiment and embodiment in the application can combine mutually.
Embodiment 1
Fig. 1 is a kind of detection trigger schematic diagram that detects the method for remaining time slot according to the embodiment of the present invention, comprises the steps:
S102, setting up in the process of new service connection, if be successfully traffic assignments time slot on present node, distributes identical time slot to the downstream node application of present node.Preferably, when having new connection to set up, business carries out the operation of setting up new service connection, further, can by but be not limited only to one of following operation and trigger and set up new service connection: set up new business, business recovery, soft heavy-route (or claiming to optimize heavy-route) etc.
S104, if application to downstream node distributes identical time slot failure, detects downstream node and whether has remaining time slot.
In this preferred embodiment, adopt and do not need periodically to detect at all TE Links two ends port, the mode that only need to detect in the time setting up applying label failure in new service connection process, thereby solve in prior art owing to periodically detecting the offered load weight causing, affect network performance, and in sense cycle not to the problem that causes not detecting in time and removing remaining time slot, and then reach and saved system resource, improve systematic function, and can not produce the effect of setting up new service connection failure in any case.
Preferably, after whether detection downstream node exists the step of remaining time slot, the method that detects remaining time slot according to the embodiment of the present invention also comprises: detect that downstream node exists remaining time slot, and remove remaining time slot.In this preferred embodiment, the detection of remaining time slot and reset procedure are automatically to carry out completely, do not need user's intervention, have reduced greatly the problem that may bring because of user misoperation.
Whether exist the step of remaining time slot also comprise: judge whether the time slot on downstream node is set to for management plane if preferably, detecting downstream node; If so, judging this time slot is remaining time slot, and this time slot is set to for control plane, and by this time slot allocation to business.In this preferred embodiment, further ensure that the detection of remaining time slot and reset procedure are automatically to carry out completely, do not need user's intervention, reduce greatly the problem that may bring because of user misoperation.
Preferably, judge whether the time slot on downstream node is set to for after management plane, the method that detects remaining time slot according to the embodiment of the present invention also comprises: if the time slot on downstream node is not set to successfully be assigned to other business for the time slot on management plane and downstream node, detect the moment of application time slot and whether time difference of time slot successfully being distributed between moment of other business is greater than predefined threshold value; If be greater than, judging this time slot is remaining time slot, removes this time slot on downstream node, and by this time slot allocation to business.In this preferred embodiment, further ensure that the detection of remaining time slot and reset procedure are automatically to carry out completely, do not need user's intervention, reduce greatly the problem that may bring because of user misoperation.
Preferably, judge whether the time slot on downstream node is set to comprise for the step of management plane: use time interval resource object to judge whether the time slot on downstream node is set to for management plane, wherein, time interval resource object is for all time interval resources of certain port on management node.In this preferred embodiment, further ensure that the detection of remaining time slot and reset procedure are automatically to carry out completely, do not need user's intervention, reduce greatly the problem that may bring because of user misoperation.
Preferably, time interval resource object at least comprises following attribute: time interval resource numbering, for identifying which number time slot that this time slot is STM-N; The administration authority of time interval resource, for identifying, this time slot belongs to control plane use or management plane uses; Use business and the link information of this time interval resource, comprise traffic ID and connection ID information; The time of the last one-tenth of this time slot distribution of work, for representing the last time that is become the distribution of work of this time slot.In this preferred embodiment, the detection and the reset procedure that have further ensured remaining time slot are automatically to carry out completely, do not need user's intervention, reduce greatly the problem that may bring because of user misoperation, and then reach and saved system resource, improve systematic function, and can not produce the effect of setting up new service connection failure in any case.
Embodiment 2
Fig. 2 is a kind of preferred structure block diagram that detects the device of remaining time slot according to the embodiment of the present invention, it comprises: application unit 202, be used in the process of setting up new service connection, if be successfully traffic assignments time slot, distribute identical time slot to the downstream node application of present node on present node; Judging unit 204, for judging that application to downstream node distributes identical time slot whether failed; Detecting unit 206, in the time applying for distributing identical time slot failure to downstream node, detects downstream node and whether has remaining time slot.
In this preferred embodiment, adopt and do not need periodically to detect at all TE Links two ends port, the mode that only need to detect in the time setting up applying label failure in new service connection process, thereby solve in prior art owing to periodically detecting the offered load weight causing, affect the problem of network performance, and then reached and saved system resource, improve systematic function, and can not produce the effect of setting up new service connection failure in any case.
Preferably, the device that detects remaining time slot according to the embodiment of the present invention also comprises: clearing cell 208, for detection of there is remaining time slot to downstream node, and remove remaining time slot.In this preferred embodiment, the detection of remaining time slot and reset procedure are automatically to carry out completely, do not need user's intervention, have reduced greatly the problem that may bring because of user misoperation.
Preferably, detecting unit comprises: plane judge module 2061, judges whether the time slot on downstream node is set to for management plane; Distribution module 2062, while being set to for management plane for the time slot on downstream node, judging this time slot is remaining time slot, this time slot is set to for control plane, and by this time slot allocation to business; When time slot on downstream node is not set to successfully be assigned to other business for the time slot on management plane and downstream node, whether the time difference of detecting between the moment of applying for the moment of time slot and time slot successfully being distributed to other business is greater than predefined threshold value, if be greater than, judging this time slot is remaining time slot, remove this time slot on downstream node, and by this time slot allocation to business.In this preferred embodiment, further ensure that the detection of remaining time slot and reset procedure are automatically to carry out completely, do not need user's intervention, reduce greatly the problem that may bring because of user misoperation.
Preferably, plane judge module 2061 comprises: time interval resource object module 20611, for using time interval resource object to judge whether the time slot on downstream node is set to for management plane, wherein, time interval resource object is for all time interval resources of certain port on management node.In this preferred embodiment, the detection of remaining time slot and reset procedure are automatically to carry out completely, do not need user's intervention, have reduced greatly the problem that may bring because of user misoperation, have saved system resource, have improved systematic function.
Preferably, time interval resource object at least comprises following attribute: time interval resource numbering, for identifying which number time slot that this time slot is STM-N; The administration authority of time interval resource, for identifying, this time slot belongs to control plane use or management plane uses; Use business and the link information of this time interval resource, comprise traffic ID and connection ID information; The time of the last one-tenth of this time slot distribution of work, for representing the last time that is become the distribution of work of this time slot.
Embodiments of the invention do not need periodically to detect at all TE Links two ends port, only need in the time set up in new service connection process applying label failure, detect and remove.And the time slot described in the embodiment of the present invention is the concept in SDH, label is the concept in GMPLS, and the two is consistent in ASON network.
In the embodiment of the present invention, set up new service connection and refer to that business has new connection to need to set up, can trigger the operation of setting up new service connection and include but are not limited to and set up new business, business recovery, soft heavy-route etc.
Embodiment 3
Suppose that business or the business recovery path set up from A to Z are that A is to Z, be Call-1 this service marker, business is A-B-C-Z through node, N time slot state between A and B is inconsistent, be remaining time slot, business is just in time applied for N time slot when applying label in the process of setting up new connection.
In this preferred embodiment, detection trigger comprises the steps:
A. business Call-1 applies for the success of N time slot at node A, continues B application to downstream node and distributes N time slot;
B. in the time that Node B application distributes N time slot, the Link Resource Manager module of Node B is returned to failure to upper layer module, and upper layer module notifying link resource management module detects and remove remaining time slot in Node B.Trigger in Node B the condition that remaining time slot detects: must be in the success of upstream node application time slot, in the failure of downstream node application time slot;
C. business Call-1 continues the time interval resource of application distribution downstream, and final new service connection is successfully established.
Wherein step B is further comprising the steps:
(1) whether the Link Resource Manager module check N time slot of Node B belongs to management plane use.If belong to management plane use, Link Resource Manager module is used N time slot migrating to control plane, then this time slot allocation to business Call-1.So far, detect and remove complete because user error carries out the remaining time slot that resource division causes.
(2) Node B checks that N time slot does not belong to management plane, and this time slot successfully distributes to other business and use, and this business of mark is Call-2.Link Resource Manager module check Call-1 applies for the time of this time slot and whether this time slot allocation is enough large to the time difference between Call-2.If this time difference is enough large, this time slot is exactly remaining time slot, and this time slot that Call-2 is taken is removed, then this time slot allocation to Call-1.If this time difference is not enough large, this time slot is that resource contention causes, and enters resource contention handling process, and this processing procedure does not belong to this patent and discusses category, no longer discusses at this.So far the remaining time slot, causing due to remaining business detects and removes complete.
Upper layer module in described step B mainly comprises service management module and connection management module.
Whether described inspection time slot belongs to management plane use and whether successfully distributes to other business while use, need to use the time interval resource object of Link Resource Manager module, and this object is for all time interval resources of certain port on management node.This object comprises following several important property: the administration authority of time interval resource numbering, time interval resource, the business and the link information that use this time interval resource, this time slot last become time of the distribution of work.Other attributes of this object do not belong to this patent and discuss category, no longer discuss at this.
Described time interval resource numbering is for identifying which number time slot that this time slot is STM-N.
The administration authority of described time interval resource is used for identifying this time slot and belongs to control plane use or management plane use.
Business and the link information of described this time interval resource of use mainly comprise the information such as traffic ID and connection ID.
The last time that is become the distribution of work of this time slot of time representation of the described last one-tenth of this time slot distribution of work.If do not used before this time slot, this time is just 0.
The technical scheme providing from the embodiment of the present invention, can find out, the present invention program and prior art scheme by comparison, have the following advantages:
(1) this programme does not need periodically all TE Links two ends port to be detected, and only in the situation that of label application failure, detects, and has saved greatly the resource of system, contributes to improve the performance of system.
(2) detection of remaining time slot and reset procedure are automatically to carry out completely, do not need user's intervention, have reduced greatly the problem that may bring because of user misoperation.
(3), in prior art scheme, in sense cycle not then, remaining time slot can exist always.During this, if business is just assigned to remaining time slot in the time distributing time slot, can cause setting up new service connection failure.There is not in the present invention this defect completely.
Embodiment 4
Fig. 3 is the another kind of detection trigger schematic diagram that detects the method for remaining time slot according to the embodiment of the present invention.In the present embodiment, adopted following part: the first Link Resource Manager module 302, the first upper layer module 304, the second Link Resource Manager module 306, the second upper layer module 308.As shown in Figure 3, above part is carried out following steps:
S302, the first upper layer module 304 is to the first Link Resource Manager module 302 applying label;
S304, the first link management module 302 is informed the first upper layer module 304 label application successes;
S306, the first link management module 302 is notified the second upper layer module 308 applying label;
S308, the second tension management module 308 is to the second link management module 306 applying label;
S310, the second Link Resource Manager module 306 is informed the second tension management module 308 label application failures;
S312, the second upper layer module 308 notifies the second Link Resource Manager module 306 to carry out remaining time slot detection.
Embodiment 5
The N time slot of supposing TE Link AB is remaining time slot, and the N time slot free time of node A, and the N time slot of Node B is remaining time slot.In the time setting up new service connection, service path is through TE Link AB, and this business of mark is Call-1.Now, the Link Resource Manager module applying label of node A can be successful, but in the time of the Link Resource Manager module applying label of Node B, can return to time slot label application failure.In the control plane of network element, a default remaining time slot threshold time is T, and T value can configure or other modes arrange by configuration file, and T value is in control plane startup continuously effective afterwards, conventionally we this value is set is 12S.Now start remaining time slot in Node B and detect, referring to Fig. 4, testing process is as follows:
S402, starts;
S404, Call-1 is in the success of A end application N time slot;
S406, Call-1 is in the failure of B end application N time slot;
S408, judges whether the N time slot of B end belongs to management plane, is to perform step S410, otherwise execution step S412;
S410, forces the N time slot of B end to be allocated to control plane, and performs step S422;
S412, judge whether B end N time slot has distributed to other business, otherwise execution step S414 is to perform step S416;
S414, mistake handling process, and perform step S424;
S416, judges whether T0 is more than or equal to T, otherwise execution step S418 is to perform step S420;
S418, label competition process flow process, and perform step S424;
S420, removes the N Time Slot Occupancy situation of B end;
S422, the N time slot allocation that B is held is to Call-1;
S424, finishes.
The time of wherein, recording current business Call-1 applying label is T1;
Whether the N time slot that checks Node B belongs to management plane use.Using if this time slot belongs to management plane, show that N time slot is that user's mistake in the time that resource allocation is divided causes, is now control plane use the N time slot migrating of Node B, then label distribution to business Call-1.Then business Call-1 continues to apply for downstream distributing labels, and final new service connection is successfully established.
If the N time slot of Node B belongs to control plane use and do not distribute to the connection use of other business, enter wrong handling process.If the N time slot of Node B belongs to control plane use and distributed to the connection use of other business, suppose that this business is Call-2.Inspection business Call-2 distributes the successful time of N time slot, supposes that this time is T2.
Deduct T1 with T2 and obtain time T 0, i.e. T0=T2-T1.Continue to detect by following flow process:
A) if T0 >=T, the N time slot of predicate node B is exactly remaining time slot so.Although this time slot has been distributed to business Call-2, detect that this time slot is remaining time slot, therefore directly business Call-1 is removed and then distributed to this time slot.Business Call-1 continues to apply for downstream distributing labels, and final new service connection is successfully established.
B) if T0 < T, judge that so the N time slot of B end is not remaining time slot, but an other business Call-3 from B to A with the N time slot of Call-1 competition B end.Now enter label competition process flow process.In this situation, by following principle distributing labels: (1) preferentially gives the time slot allocation of competition the business of recovering.This principle has ensured that the business of having opened can be successfully recovered the most fast.Article (2) two, when business is all new business, distribute time slot by the self-defining principle of system.Such as preferentially label distribution to the little business of node ID.
Embodiment 6,
Referring to Fig. 5, when user resources division mistake causes remaining time slot, N time slot A end belongs to control plane use, and B end belongs to management plane and uses, and M time slot A end belongs to management plane and uses, and B holds and belongs to control plane use.When business is during from A to B direction applying label, for M time slot, because belonging to management plane, A end uses, and therefore the Link Resource Manager module of A end can not given this traffic assignments M time slot, and this time slot is not also just needed to carry out remaining time slot detection.For N time slot, because A end belongs to control plane, if the Link Resource Manager module assignment of A end N time slot, in the time that B end distributes N time slot, detect that this time slot belongs to management plane, therefore this time slot must be the remaining time slot that the resource division of user error causes.For such remaining time slot, only need directly this time slot to be forced be allocated to control plane and use, then the Link Resource Manager module of being held by B this time slot allocation to business.
Referring to Fig. 6, when network meltdown causes remaining time slot, T0 represents that this applying label becomes the time difference of this label of the distribution of work with the last time.Remaining connect threshold time T is an empirical value, and this value is to provide after taking into full account the scene that remaining time slot and resource contention occur.The N time slot A end free time, B end has been distributed to other business, and M time slot A end has been distributed to other business, and B holds idle.When business is when from A to B direction applying label, for M time slot, because A end has been distributed to other business uses, therefore the Link Resource Manager module of A end can not given this traffic assignments M time slot, and this time slot is not also just needed to carry out remaining time slot detection.For N time slot, because A end is idle, if the Link Resource Manager module assignment of A end N time slot, in the time that B end distributes N time slot, detect that this time slot distributed to other business and used.We know the reason occurring from remaining time slot, and the appearance of common remaining time slot needs the long period, this time is minimum be all minute more than, may be in sky in actual ASON network.For the situation of label competition, while only having both direction almost to apply for same label, just there will be simultaneously, now the N time slot of B end has just just been distributed to Call-2, normally Millisecond of time difference T0.Therefore,, as T0 >=T, can judge that the N time slot of B end is exactly remaining time slot; As T0 < T, can judge it is resource contention.
In sum, in a kind of ASON network provided by the invention, the method and apparatus of fast detecting and the remaining time slot of removing has well solved the defect of prior art scheme, can save greatly system resource, the performance of raising system has reduced the serious problems that system may be brought because of user misoperation simultaneously.The method is simple and reliable, realizes the system of the method through actual test, and result is reliable and stable.
Obviously, those skilled in the art should be understood that, above-mentioned of the present invention each module or each step can realize with general calculation element, they can concentrate on single calculation element, or be distributed on the network that multiple calculation elements form, alternatively, they can be realized with the executable program code of calculation element, thereby, they can be stored in storage device and be carried out by calculation element, and in some cases, can carry out shown or described step with the order being different from herein, or they are made into respectively to each integrated circuit modules, or the multiple modules in them or step are made into single integrated circuit module to be realized.Like this, the present invention is not restricted to any specific hardware and software combination.
The foregoing is only the preferred embodiments of the present invention, be not limited to the present invention, for a person skilled in the art, the present invention can have various modifications and variations.Within the spirit and principles in the present invention all, any amendment of doing, be equal to replacement, improvement etc., within all should being included in protection scope of the present invention.
Claims (9)
1. a method that detects remaining time slot, is characterized in that, comprises the steps:
Setting up in the process of new service connection, if be successfully described traffic assignments time slot, distribute identical described time slot to the downstream node application of described present node on present node;
If distribute identical time slot failure to described downstream node application, detect described downstream node and whether have remaining time slot;
Wherein, whether the described downstream node of described detection exists the step of remaining time slot also to comprise: judge whether the described time slot on described downstream node is set to for management plane; If so, judging described time slot is described remaining time slot, and described time slot is set to for control plane, and gives described business by described time slot allocation.
2. method according to claim 1, is characterized in that, the described downstream node of described detection also comprises after whether there is the step of remaining time slot:
Detect that described downstream node exists described remaining time slot, and remove described remaining time slot.
3. method according to claim 1, is characterized in that, describedly judges whether the described time slot on described downstream node is set to, for after management plane, also comprise:
If the described time slot on described downstream node is not set to successfully be assigned to other business for the described time slot on described management plane and described downstream node, whether the time difference described in detecting the moment of the described time slot of application and described time slot successfully being distributed between moment of other business is greater than predefined threshold value;
If be greater than, remove the described time slot on described downstream node, and give described business by described time slot allocation.
4. method according to claim 1, is characterized in that, describedly judges whether the described time slot on described downstream node is set to comprise for the step of management plane:
Use time interval resource object to judge whether the described time slot on described downstream node is set to for management plane, wherein, described time interval resource object is for all time interval resources of certain port on management node.
5. method according to claim 4, is characterized in that, described time interval resource object at least comprises following attribute:
Time interval resource numbering, for identifying which number time slot that this time slot is STM-N;
The administration authority of time interval resource, for identifying, this time slot belongs to control plane use or management plane uses;
Use business and the link information of this time interval resource, comprise traffic ID and connection ID information;
The time of the last one-tenth of this time slot distribution of work, for representing the last time that is become the distribution of work of this time slot.
6. a device that detects remaining time slot, is characterized in that, comprising:
Application unit, for the process setting up new service connection, if be successfully described traffic assignments time slot on present node, distributes identical described time slot to the downstream node application of described present node;
Whether judging unit, distribute identical time slot failed for judging to described downstream node application;
Detecting unit, for when distribute identical time slot failure to described downstream node application, detects described downstream node and whether has remaining time slot;
Wherein, described detecting unit comprises: plane judge module, judges whether the described time slot on described downstream node is set to for management plane; Distribution module, while being set to for management plane for the described time slot on described downstream node, judging described time slot is described remaining time slot, described time slot is set to for control plane, and gives described business by described time slot allocation.
7. device according to claim 6, is characterized in that, also comprises:
Clearing cell, for detection of there is described remaining time slot to described downstream node, and removes described remaining time slot.
8. device according to claim 6, is characterized in that, described detecting unit comprises:
Described distribution module, while also not being set to successfully be assigned to other business for the described time slot on described management plane and described downstream node for the described time slot on described downstream node, whether the time difference of detecting between the moment of applying for the moment of described time slot and described time slot successfully being distributed to described other business is greater than predefined threshold value, if be greater than, remove the described time slot on described downstream node, and give described business by described time slot allocation.
9. device according to claim 8, is characterized in that, described plane judge module comprises:
Time interval resource object module, for using time interval resource object to judge whether the described time slot on described downstream node is set to for management plane, wherein, described time interval resource object is for all time interval resources of certain port on management node.
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| CN201010570403.1A CN102487304B (en) | 2010-12-02 | 2010-12-02 | Method and device for detecting residual time slot |
| PCT/CN2011/081210 WO2012071960A1 (en) | 2010-12-02 | 2011-10-24 | Method and device for detecting residual timeslot |
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| CN201010570403.1A CN102487304B (en) | 2010-12-02 | 2010-12-02 | Method and device for detecting residual time slot |
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| CN102487304B true CN102487304B (en) | 2014-11-05 |
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| CN1859371B (en) * | 2005-10-28 | 2010-09-29 | 华为技术有限公司 | Method for checking flow engineering link time slot state consistency |
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| EP2061186A1 (en) * | 2007-11-14 | 2009-05-20 | Nokia Siemens Networks Oy | Method and device for determining a history of a connection in a newtwork and communication system comprising such device |
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| CN1983908A (en) * | 2006-06-13 | 2007-06-20 | 华为技术有限公司 | Method for automatically correcting label resource management |
| CN101141321A (en) * | 2007-08-09 | 2008-03-12 | 中兴通讯股份有限公司 | Method for real-time detecting residual time slot in automatic exchange optical network system |
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| CN102487304A (en) | 2012-06-06 |
| WO2012071960A1 (en) | 2012-06-07 |
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