CN102394810A - Method for realizing dynamic association between pseudo-wire services and channels in PTN (Packet Transport Network) network - Google Patents
Method for realizing dynamic association between pseudo-wire services and channels in PTN (Packet Transport Network) network Download PDFInfo
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Abstract
The invention provides a method for realizing dynamic association between pseudo-wire services and channels in a PTN (Packet Transport Network) network, relating to the PTN network. The method comprises the following steps of: a1, establishing a pseudo-wire and setting basic attributions of the pseudo-wire and the channels, an attribution for optimizing a result and an associative attribution of a channel in the need of being newly established; a2, judging whether the channel exists; if not, automatically establishing a new channel; otherwise, entering into the next step; a3, matching the existing channels with the basic attributions to filter the channels which accord with the basic attributions; and a4, filtering out the channels which accord with the basic attributions step by step according to the attribution for optimizing the result to obtain the only optimized channel for the association, or randomly selecting one channel from a plurality of the obtained optimized channels for the association. In the condition that no suitable channels can be associated, the method can be used for automatically triggering establishment of the channel meeting conditions and dynamically associating. As the whole process has no need of artificial interference, the labor is saved, the efficiency is improved and the optimal association result is obtained.
Description
Technical field
The present invention relates to PTN (Packet Transport Network, Packet Transport Network), specifically is a kind of method that pseudo-line service and passage dynamically associate that in the PTN network, realizes.
Background technology
In the PTN network, according to the control plane frame description of MPLS-TP (TP MPLS Transport Profile transmits the MPLS framework); To support PWE3 (Pseudo Wire Emulation Edge to Edge at pseudo-line layer control plane; Pseudo Wire Emulation Edge-to-Edge) framework, this is a kind of layer architecture, in this framework; User data encapsulates into pseudo-line, and pseudo-line is carried on the bag transmission Netcom road.In the PWE3 architecture as shown in Figure 1, exist bag to transmit the Netcom road between service provider's edge device 1 and the service provider's edge device 2, carried pseudo-line above that, be used to transmit the user service data between subscriber equipment 1 and the subscriber equipment 2.
Generally speaking, setting up passage earlier, on passage, set up pseudo-line service again, is that a kind of static method that uses is realized the mode that pseudo-line service is related with passage.But pseudo-line service itself has certain attribute, has requirement for the channel attributes of carrying, and in, the network complicated in network topology under the more situation of number of channels; Adopt static mode of specifying this incidence relation; Need carry out a large amount of search and judging through manual type, remove to filter out available passage, do like this can inevitable labor manpower; And inefficiency, the result is not optimum toward contact; Do not having passage, or do not satisfying under the situation of passage of pseudo-line service load bearing requirements, also the very important person is the new passage of manual creation.Like publication number is CN101616051, and denomination of invention is " creating the method and the device of pseudo-line "; Publication number CN101631072, denomination of invention is " a kind of pseudo line establishing method, device and a system "; And publication number CN101656673, denomination of invention is in " a kind of pseudo line establishing method and node apparatus " these three patents of invention, all has above shortcoming.
Summary of the invention
To the defective that exists in the prior art, the object of the present invention is to provide a kind of method that realizes that in the PTN network pseudo-line service and passage dynamically associate, do not have suitable passage can the situation of association under; Can trigger the establishment of the passage that satisfies condition automatically and dynamically associate; The whole process that dynamically associates and create new tunnel automatically all need not human intervention, saves manpower; Improve the related efficient of passage, obtain superior association results.
For reaching above purpose; The technical scheme that the present invention takes is: a kind of method that realizes that in the PTN network pseudo-line service and passage dynamically associate; Comprise the steps: that a1. initiates pseudo-line and sets up, the base attribute of pseudo-line and passage, the attribute that is used for Optimization result, the new association attributes of creating passage of needs are set; A2. judge whether to exist passage,, then create new tunnel automatically if there is not passage; If there is passage, get into next step; A3. the passage to said existence uses said base attribute to mate, and filters out the passage that conforms to base attribute; A4. to the said passage that conforms to base attribute, progressively filter according to the attribute of Optimization result, the unique passage that is optimized carries out association, or optimizes in the passages at many that obtain and to select a passage association at random.
On the basis of technique scheme, said base attribute comprises that mainly passage has that identical, the pseudo-line source of the node element place interface of availability, pseudo-line and passage is corresponding with passage sourcesink interface, passage has enough available bandwidths to be used for the carrying of pseudo-line service.
On the basis of technique scheme, the attribute of said Optimization result mainly comprises the route association attributes of maintenance priority, the passage of protection attribute, the passage of passage, by the association attributes of user's appointment.
On the basis of technique scheme, the priority orders of said protection attribute acquiescence is: protection＞recovery＞unprotect; The filtration of said maintenance priority acquiescence is in proper order: keep priority height＞maintenance priority low; The priority orders of said route association attributes acquiescence is: and node is minimum＞and link cost is minimum.
On the basis of technique scheme; If specify the filtration order of the attribute of Optimization result when setting up pseudo-line; Then step a4 filters according to specified order, if do not specify the filtration order of the attribute of Optimization result, then step a4 adopts the priority orders of each attribute acquiescence to filter.
On the basis of technique scheme,, then create new tunnel automatically if do not meet the passage of base attribute among the step a3.
On the basis of technique scheme, after the said automatic establishment new tunnel success, carry out dynamically associating of pseudo-line service and new tunnel.
On the basis of technique scheme, said automatic establishment new tunnel, the base attribute of setting are as the base attribute of new tunnel, and other attributes of new tunnel itself need be specified when the configuration pseudo-line service in advance.
On the basis of technique scheme, said step a1 is initiated through the PTN NMS by operating personnel, and step a2-a4 is by carrying out automatically through PTN network control plane.
Beneficial effect of the present invention is: the attribute that the present invention's definition and appointment pseudo-line service use when related with passage; The optimized Algorithm that employing dynamically associates; According to the flow operations that pseudo-line service and passage dynamically associate, can realize the related of pseudo-line service and passage very flexibly; The priority of optimization attributes can artificially be specified; Satisfy requirements of different users, particularly complicated in network topology, under the more situation of number of channels; Can need not under the situation of human intervention, find more excellent relatively passage more efficiently and carry out dynamic association; Even for not having passage, perhaps not existing under the situation of the passage that satisfies base attribute; Also can create the new passage that satisfies condition automatically, and after passage is created successfully, realize dynamically associating of pseudo-line service and passage; Need not human intervention, save manpower.
Description of drawings
Fig. 1 is a PWE3 architectural schematic in the background technology;
Fig. 2 is for realizing the flow chart that pseudo-line service and passage dynamically associate in the embodiment of the invention PTN network.
Embodiment
Below the present invention is done further explain.
A kind of method that realizes that in the PTN network pseudo-line service and passage dynamically associate of the present invention comprises the steps:
A1. dynamically associating of pseudo-line service and passage initiated pseudo-line by operating personnel through the PTN NMS and set up, and three generic attributes are set, and comprising: the base attribute of pseudo-line and passage, the attribute that is used for Optimization result, the new association attributes of creating passage of needs.
Wherein, When being association, said base attribute must satisfy; Thereby guarantee the validity of related passage; Also can be used for creating new passage, it comprises that mainly passage has that identical, the pseudo-line source of the node element place interface of availability, pseudo-line and passage is corresponding with passage sourcesink interface, passage has enough available bandwidths to be used for the carrying of pseudo-line service.
The said attribute that is used for Optimization result mainly comprises the route association attributes of maintenance priority, the passage of protection attribute, the passage of passage, by the association attributes of user's appointment.At each community-internal, there is certain priority orders, the priority orders of said protection attribute acquiescence is: protection＞recovery＞unprotect; The filtration of said maintenance priority acquiescence is in proper order: keep priority height＞maintenance priority low; The priority orders of said route association attributes acquiescence is: and node is minimum＞and link cost is minimum.
A2. judge whether to exist passage,, then create new tunnel automatically if there is not passage; If there is passage, get into next step.
A3. the passage to said existence uses said base attribute to mate, and filters out the passage that conforms to said base attribute, as there not being the passage that satisfies base attribute, then creates new tunnel automatically.
A4. to the said passage that conforms to base attribute, use the optimized Algorithm that dynamically associates, progressively filter according to the attribute of Optimization result.Said optimized Algorithm is exactly in satisfying all passages of base attribute; If specify the filtration order of the attribute of Optimization result when setting up pseudo-line; Association attributes for effective passage progressively filters according to specified order; Filter based on next attribute again, up to filtering out unique passage that satisfies condition; If after having used last attribute to filter, also have many passages that satisfy condition, then can adopt this moment the mode of selecting at random to dynamically associate wherein passage.If do not specify the filtration order of the attribute of Optimization result, then filter according to the priority orders of protection attribute acquiescence, unique passage that will be optimized at last carries out association, or in many optimization passages that obtain, selects a passage association at random.
Said step a2-a4 is by carrying out automatically through PTN network control plane.In addition, saidly not having passage, or not existing under the situation of the passage that satisfies base attribute, can trigger automatic establishment new tunnel.The base attribute of said setting is as the base attribute of new tunnel; Simultaneously; New other attribute of creating passage itself; As protect recover type, set up priority, keep priority, strategy that route adopts etc., need specify in advance during at the configuration pseudo-line service at needs, when the newly-built passage of needs, use; After new passage is created successfully, carry out dynamically associating of pseudo-line service and new tunnel again, this related process equally also is to accomplish automatically, need not human intervention.
Through specific embodiment the present invention is done further explain below.
| Passage between the sourcesink | The protection attribute | Keep priority | The route association attributes | Basic attribute set |
| Passage 1 | Protection | High | The node number is minimum | ?A |
| Passage 2 | Protection | Low | Link cost is minimum | ?A |
| Passage 3 | Protection | High | Link cost is minimum | ?A |
| Passage 4 | Protection | High | The node number is minimum | ?A |
| Passage 5 | Protection | High | Link cost is minimum | Non-A |
| |
Protection | Low | The node number is minimum | ?A |
| Passage 7 | Recover | Low | The node number is minimum | ?A |
| Passage 8 | Recover | High | Link cost is minimum | Non-A |
| |
Recover | Low | The node number is minimum | ?A |
| |
Unprotect | High | Link cost is minimum | Non-A |
| Passage 11 | Unprotect | High | The node number is minimum | ?A |
| Passage 12 | Unprotect | High | Link cost is minimum | Non-A |
Table one
In the present embodiment; Suppose that in the PTN network will set up between the sourcesink node of pseudo-line and had many passages, its association attributes is shown in top table one; Have 12 alternative passages, its protection attribute, maintenance priority and route association attributes etc. all exist certain difference.
As shown in Figure 2, the concrete steps after it begins are following:
S1. operating personnel initiate pseudo-line foundation through the PTN NMS; Three generic attributes are set; Basic attribute set A, new tunnel are set, and to create property set be B; And specify the filtration of optimization attributes to be in proper order: the protection attribute of first passage, the maintenance priority of passage, the route association attributes of passage at last again.
S2. judge whether to exist passage,, then get into S3 if there is passage; If there is not passage, then get into S9.
S3. carry out filtering screening according to the base attribute A that is provided with, whether have the passage that satisfies base attribute A,, then get into S4 if exist; If do not exist, then get into S9.Therefore, all passages that do not satisfy base attribute A can be filtered, and passage 5, passage 8, path 10 and passage 12 are filtered.
S4. after judging that the protection attribute filters, whether there is unique passage, gets into S 10 if exist; If do not exist, get into S5.Said through after the S3 filtration; Remaining all is to have the passage that satisfies base attribute A; Filter according to optimizable attribute; At first be to filter according to the path protection attribute, its medium priority is respectively from high to low: protection＞recovery＞unprotect, so passage 1, passage 2, passage 3, passage 4 and passage 6 are the passages with protection attribute.
S5. after keeping priority to filter, whether there is unique passage, gets into S10 if exist; If do not exist, get into S6.Keep priority attribute to filter according to passage, its priority is: keep priority height＞maintenance priority low; Therefore selection result is to have high passage priority, that have the protection attribute that keeps: passage 1, passage 3 and passage 4.
S6. after routing property is filtered, whether there is unique passage, gets into S10 if exist; If do not exist, get into S7.Route association attributes according to passage filters, and its priority is: and node is minimum＞and link cost is minimum; Therefore selection result is to have the passage that the node number is minimum routing property, that have the highest maintenance priority, have the protection attribute: passage 1 and passage 4.
S7. after user-specific attributes is filtered, whether there is unique passage,, gets into S10 if there is unique passage; If there is not unique passage, get into S8; Because what filter out at last has passage 1 and a passage 4, therefore gets into S8.
S8. select a passage that satisfies condition at random, therefore can selector channel 1 or passage 4 any, get into S10.
S9. create passage automatically, get into S10.If do not have passage between the pseudo-line source destination node, perhaps do not have the passage that satisfies base attribute, then will carry out the dynamic creation of new tunnel according to basic attribute set A and new tunnel establishment property set B this moment.
S10. selected passage is dynamically associated.So far finish.
The present invention is not limited to above-mentioned execution mode, for those skilled in the art, under the prerequisite that does not break away from the principle of the invention, can also make some improvement and retouching, and these improvement and retouching also are regarded as within protection scope of the present invention.The content of not doing in this specification to describe in detail belongs to this area professional and technical personnel's known prior art.
Claims (9)
1. in the PTN network, realize the method that pseudo-line service and passage dynamically associate for one kind, it is characterized in that, comprise the steps:
A1. initiate pseudo-line and set up, the base attribute of pseudo-line and passage, the attribute that is used for Optimization result, the new association attributes of creating passage of needs are set;
A2. judge whether to exist passage,, then create new tunnel automatically if there is not passage; If there is passage, get into next step;
A3. the passage to said existence uses said base attribute to mate, and filters out the passage that conforms to base attribute;
A4. to the said passage that conforms to base attribute, progressively filter according to the attribute of Optimization result, the unique passage that is optimized carries out association, or optimizes in the passages at many that obtain and to select a passage association at random.
2. the method that realizes that in the PTN network pseudo-line service and passage dynamically associate as claimed in claim 1 is characterized in that: said base attribute comprises that mainly passage has that identical, the pseudo-line source of the node element place interface of availability, pseudo-line and passage is corresponding with passage sourcesink interface, passage has enough available bandwidths to be used for the carrying of pseudo-line service.
3. the method that realizes that in the PTN network pseudo-line service and passage dynamically associate as claimed in claim 1 is characterized in that: the attribute of said Optimization result mainly comprises the route association attributes of maintenance priority, the passage of protection attribute, the passage of passage, by the association attributes of user's appointment.
4. the method that realizes that in the PTN network pseudo-line service and passage dynamically associate as claimed in claim 3 is characterized in that: the priority orders that said protection attribute is given tacit consent to is: protection＞recovery＞unprotect; The filtration of said maintenance priority acquiescence is in proper order: keep priority height＞maintenance priority low; The priority orders of said route association attributes acquiescence is: and node is minimum＞and link cost is minimum.
5. the method that realizes that in the PTN network pseudo-line service and passage dynamically associate as claimed in claim 4; It is characterized in that: if specify the filtration order of the attribute of Optimization result when setting up pseudo-line; Then step a4 filters according to specified order; If do not specify the filtration order of the attribute of Optimization result, then step a4 adopts the priority orders of each attribute acquiescence to filter.
6. the method that realizes that in the PTN network pseudo-line service and passage dynamically associate as claimed in claim 1 is characterized in that: as if the passage that does not meet base attribute among the step a3, then create new tunnel automatically.
7. like claim 1 or the 6 described methods that realize that in the PTN network pseudo-line service and passage dynamically associate, it is characterized in that: after the said automatic establishment new tunnel success, the dynamically associating of execution pseudo-line service and new tunnel.
8. the method that realizes that in the PTN network pseudo-line service and passage dynamically associate as claimed in claim 7; It is characterized in that: said automatic establishment new tunnel; The base attribute that is provided with is as the base attribute of new tunnel; Other attributes of new tunnel itself need be specified when the configuration pseudo-line service in advance.
9. the method that realizes that in the PTN network pseudo-line service and passage dynamically associate as claimed in claim 1 is characterized in that: through the initiation of PTN NMS, step a2-a4 is by carrying out automatically through PTN network control plane by operating personnel for said step a1.
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| CN111147377A (en) * | 2019-12-05 | 2020-05-12 | 连连银通电子支付有限公司 | Method, device, equipment and medium for determining service channel |
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Application publication date: 20120328 |