CN1866960A - Method for confirming mapping relation between cross-domain service domain interior domains - Google Patents
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Abstract
The invention relates to a method for assuring the projection relationship between internal fields of span service field. Wherein, said method comprises: the inlet point of field receives the path information that loaded service level consultation SLA projection target information; combined with said SLA information and the SLA consultation strategy data of each node, assuring the inter-field SLA projection relationship of span service. The invention distributes different strategies on different fields, to improve the stability of service, and reduce the service cost.
Description
Technical field
The present invention relates to communication technique field, relate in particular to a kind of definite method of mapping relation between cross-domain service domain interior domains.
Background technology
Traditional network topology is the single domain pattern, and all network elements are all preserved the topology information of the whole network in the territory, and the variation of topology information also can be flooded to all nodes in the territory, and webmaster carries out unified management to all nodes in the territory.But extensiveization along with network; existing single domain pattern topology has demonstrated its bottleneck; promptly; the amount of information of inundation is huge when disconnected fibre, change in resources; network is caused bigger impact; restriction on the device processes ability, inconvenient in the maintenance management, and the equipment of distinct device manufacturer is difficult to finish under the topology of single domain pattern and interconnects.
At present, International Standards Organization such as ITU-T and OIF all adopts hierarchical network model, large scale network is divided into a plurality of different territories to be managed, these territories are less relatively, and the inundation of routing iinformation all only carries out in territory, node place, and the impact of network is reduced, administer and maintain more convenient, distinct device supplier's product divides networking in different territories, and the ENNI interface butt joint by international standard can realize interconnecting easily.Fig. 1 is the hierarchical network schematic diagram.
0 layer is the real network topology among the figure, is divided into five control domains of CD1-CD5, and each territory upwards is abstracted into a node, this node is published to last layer with the topology information in lower floor territory, constitute CD6 and two territories of CD7 of 1 layer, in like manner, the most at last in all node abstraction to one territory; Link information between 0 layer of territory and the territory also will be published to last layer, realize the lower floor's connection of each territory in the territory, upper strata, the final three-layer network that forms as shown in Figure 1.
When setting up a cross-domain teleservice under the multiple domain situation, need set up one or more territory inner tunnel in the porch in a territory, just there is a problem in this: the mapping of territory inner tunnel SLA (service level agreement) and outer teleservice SLA.
Present way is to adopt static mapping mode, be that a kind of SLA of teleservice is corresponding a kind of and have only the SLA of a kind of territory inner tunnel, for example outer teleservice is a Dedicated 1+1 rank, and corresponding territory inner tunnel is the Shared rank, and can not change.And this relation is cured in the intelligence software, can not change.Show this mapping relations as Fig. 2.
This way realizes simple, but there are the following problems: because network size is increasing, the topological state and the external environment condition in each territory may be not quite similar, in the territory less at link circuit resource, that external environment condition is abominable, unusual probability such as disconnected fibre is higher relatively, only builds a lower territory inner tunnel of protection class will make the probability of service disconnection higher relatively, and in case take place unusual, because factors such as external environment condition is abominable make maintenance cycle longer, expense is higher; On the contrary;, external environment condition abundant at link circuit resource is preferably in the territory; building a high territory inner tunnel of protection class will cause resource utilization not high; make other user can not get enough resources; this causes a hidden trouble with regard to giving professional stability; cause very big inconvenience also for administering and maintaining of operator, strengthen operation cost.And, cause service stability hidden danger, problems such as the wasting of resources because such scheme is not formulated different mapping policys according to the link circuit resource and the external environment condition characteristics in each territory.
Summary of the invention
The object of the present invention is to provide a kind of definite method of mapping relation between cross-domain service domain interior domains, by object of expansion in RSVP, and be placed in the policy data of PATH, mapping warranty term at certain or some territories when setting up business, the user is provided in this object, can improve professional stability through the relatively poor territory of condition the time, the raising condition is the resource utilization in territory preferably, thereby reduces management and maintenance cost.
The objective of the invention is to be achieved through the following technical solutions:
A kind of definite method of mapping relation between cross-domain service domain interior domains comprises:
The entrance in A, territory receives the PATH of the business foundation that carries service level agreement SLA mapping object information;
B, determine SLA mapping relations between cross-domain service domain interior domains in conjunction with the consulting tactical data in the territory, SLA place of described SLA mapping object information and each node configuration.
The SLA mapping object information of carrying in the described PATH obtains by extended resources reservation protocol RSVP.
SLA mapping object information in the described PATH that receives comprises: territory ID, negotiation sign, best domain inner tunnel SLA rank, the highest territory inner tunnel SLA rank and minimum territory inner tunnel SLA rank.
Described negotiation sign is used to represent whether to allow to consult and/or allow the classification of negotiation.
The consulting tactical data in the territory, SLA place of described each node configuration are kept in the local data.
The consulting tactical data in the territory, SLA place that disposes on the described node comprise: this territory the highest SLA rank of receptible territory inner tunnel, and minimum SLA rank, default rank and/or operator specific resources is resisted the particular determination rank of being done.
Described step B further comprises:
If there be not the territory identical in the B1 PATH, then determine the SLA mapping relations, or use prior art to determine the SLA mapping relations according to the default rank in the current field with the current field ID; Or,
If have the territory ID identical in the B2 PATH, then in conjunction with among both the SLA mapping relations being determined in the qualification in this territory with the current field ID.
Described step B2 specifically comprises:
Do not allow to consult the protection level that then adopts the best level conduct in this PATH to determine if consult in the B21 PATH to be masked as; If described best level is not in the SLA of this each node configuration of territory policy data, then road construction is failed; Or,
If consulting in the B22 PATH to be masked as allows negotiation, and in SLA mapping object and this domain policy data qualification in this territory is not existed the protection level of common permission, then road construction failure; Or,
Allow to consult if consult in the B23 PATH to be masked as, and have a common protection level that allows, then set up the territory inner tunnel according to this rank; If there is the protection level of a plurality of common permissions; then select: in the PATH in best level or this domain policy data default rank or wherein with PATH in the rank of the best level difference minimum stipulated; if or the rank of a plurality of difference minimums, then optional one arranged.
As seen from the above technical solution provided by the invention, the present invention has realized at the different strategy of the configuration of same area not, improved professional stability through the relatively poor territory of condition the time, and the resource utilization during through the better territory of condition, thereby the operating cost that administers and maintains reduced.
Description of drawings
Fig. 1 is a prior art hierarchical network schematic diagram;
Fig. 2 is prior art teleservice SLA and territory inner tunnel SLA mapping relations schematic diagram;
Fig. 3 is an embodiment of the present invention operational flowchart;
Fig. 4 is teleservice SLA and the territory inner tunnel SLA mapping relations schematic diagram of an embodiment of the present invention after consulting.
Embodiment
Core concept of the present invention provides service class method for confirming mapping relation between a kind of cross-domain service domain interior domains, by object of expansion in RSVP, and be placed in the policy data of PATH, mapping warranty term at certain or some territories when setting up business, the user is provided in this object, can improve professional stability through the relatively poor territory of condition the time, the raising condition is the resource utilization in territory preferably, thereby reduces management and maintenance cost.
The invention provides service class method for confirming mapping relation between a kind of cross-domain service domain interior domains, a kind of embodiment operating process of described method comprises the steps: as shown in Figure 3
Step 1: when receiving the PATH of the business foundation that carries SLA mapping object information, in described SLA mapping object, search the territory ID subobject identical with the current field ID in the entrance in territory;
The user is carried SLA mapping object information by object of expansion in RSVP, and can adopt following form, but be not limited to this form, as long as the content of expansion comprises the content in the form:
04812
| Length (Length) | Classification number (Class-Num) | C type (C-Type) | |||
| Territory ID (Aria ID) | |||||
| Consult sign (Agreement Flag) | Best level (Best Level) | Highest level (Highest Level) | Minimum rank (Lowest Level) | ||
| (the configuration Configuration of Next Area of the next field) | |||||
31 0
Four bytes shown in first row are standard heads of object in the existing RSVP in the last table, and all the elements of back are the entrained particular content of object, and eight bytes of per two row are a subobject;
Territory ID (Area ID): take four bytes, be meant ID number of territory of SLA mapping;
Consult sign (Agreement Flag): take a byte, can set when most significant bit is 1, expression allows to consult; 0 representative does not allow, and promptly the user only allows to set up the territory inner tunnel of following described best level; Lowest order is 1 to represent SLA to consult, and other position defaults to 0, is that other consults to reserve later on;
Best level (Best Level): be meant the best domain inner tunnel SLA rank that territory ID indication intra domain user is wished;
Highest level (Highest Level): be meant territory ID indication intra domain user institute the highest receptible territory inner tunnel SLA rank;
Minimum rank (Lowest Level): be meant territory ID indication intra domain user institute receptible minimum territory inner tunnel SLA rank;
More than three kinds of level field all take a byte, its value is comprised by the senior receptible value of low level that is clipped to, but be not limited to: Dedicated 1+1, Dedicated 1:1, Shared, Unprotected, Extra Traffic, occurrence is defined by existing standard, 0 also is the acceptable value, and expression is to this no requirement (NR);
Last column be the configuration to the next field in the last table, if not then do not provide, if there be more also the continuation to add by above structure, concrete quantity can be learnt by object length calculating;
RSVP after the above-mentioned expansion is stored in the PATH;
Arbitrary node configuration policy data in the territory in advance, and be flooded to all boundary nodes in the territory by routing module, and be stored in each database;
Policy data includes but not limited to: the highest SLA rank of this territory institute's receptible territory inner tunnel, minimum SLA rank, default rank, and/or operator's particular determination rank that particular source is done, for example: this receptible highest level in territory is Dedicated 1+1, minimum rank is Unprotected, is that the business of 1.1.1.1 only allows to be up to Shared etc. to source address;
Step 2: if there is no territory ID and the identical subobject of this territory ID, illustrate that the user does not require this territory, then set up the territory inner tunnel, if the current field is not set default rank by the default rank of the current field, then use prior art to set up the territory inner tunnel, determine protection level;
Step 3: if existence domain ID and the identical subobject of this territory ID, user's request and software are made negotiation, determine the SLA mapping relations;
There is following situation in its negotiations process:
Suppose that user configured demand constitutes set A, operator's configured strategy data constitute set B, suppose that user configured SLA best level is X
0, minimum rank is X
1, highest level is X
2, the default rank of SLA is Y in operator's configured strategy data
0, minimum rank is Y
1, highest level is Y
2, and X
2〉=X
0〉=X
1, Y
2〉=Y
0〉=Y
1, the magnitude relationship here just determines by the SLA protection level, i.e. Dedicated 1+1＞Dedicated 1:1＞Shared＞Unprotected＞Extra Traffic.
Based on above hypothesis, the value of user's request set A is: if consult the sign highest order in the SLA mapping subobject is 0, shows that then the user does not allow to consult A={X
0; Otherwise A={R|X
1≤ R≤X
2.The value of policy data set B is: B={R|Y
1≤ R≤Y
2, and R satisfies the particular determination that this source address is done }.
If A and B occur simultaneously for empty, the merit of then failing to consultations is returned the road construction failure; Otherwise consult successfully, if X at this moment
0In this occurs simultaneously, then return X
0If X
0Not and Y
0, then return Y
0Neither exist, then return in the common factor and X
0Rank differs that minimum rank, if having a plurality ofly, then optional one, finishes professional foundation by existing procedure then.
With the instantiation among Fig. 4 this method is described below:
SLA mapping object in PATH thes contents are as follows, and comprises two subobjects:
| 20 | Classification number (to be allocated) | C type (to be allocated) | |
| CD2 territory ID | |||
| 0×81 | Shared | Dedicated 1+1 | Shared |
| CD3 territory ID | |||
| 0×81 | Dedicated 1+1 | Dedicated 1+1 | Shared |
Object length is 20, deducts head length 4, and the subobject total length is 16, and two subobjects have been described.Below for setting up the situation of outside Dedicated 1+1 end to end when professional:
CD2 Link State and external environment condition are all better, and the user is for the minimizing expense, and configuration Shared is the best level of territory inner tunnel SLA, and operator is Shared to the policy data in this territory for allowing the highest SLA rank.When setting up article one connection, message arrives the A node of CD2 inlet, and the A node reads the information in the SLA mapping object, the territory ID that finds first subobject is consistent with CD2, illustrate that the user has done warranty term at this territory, and consult to be masked as 0 * 81, show to allow to consult; Obtain best level, highest level, minimum rank in the subobject, obtain user's request set A={ Dedicated 1+1, Dedicated 1:1, Shared}, suppose carrier policy data acquisition system B={Shared, Unprotected, Extra Traffic}, operator does not do particular determination in this territory to this service source address in this example, A and B occur simultaneously and are { Shared}, best level-Shared that the user disposed in this common factor, so consult successfully, with the territory inner tunnel SLA rank of this best level as this territory.
The external environment condition of CD3 is relatively poor, and it is Dedicated 1+1 that the user has disposed best domain inner tunnel SLA, and operator is the highest territory inner tunnel that allows to set up Dedicated 1:1 to the policy data in this territory.When setting up the second connection, message arrives the B node of CD3 inlet, and the B node reads the information in the SLA mapping object, the territory ID that finds second subobject is consistent with CD3, illustrate that the user has done warranty term at this territory, and consult to be masked as 0 * 81, show to allow to consult; Obtain the best level in the subobject, highest level, minimum rank, obtain user's request set A={ Dedicated 1+1, Dedicated 1:1, Shared}, suppose carrier policy data acquisition system B={Dedicated 1:1, Shared, Unprotected, Extra Traffic}, operator does not do particular determination in this territory to this service source address in this example, and A and B occur simultaneously and be { Dedicated 1:1, Shared}, the best level that the user disposed-Dedicated 1+1 is not in this common factor, and operator does not dispose default rank to this territory, so select to differ minimal level with user configured best level Dedicated 1+1 i.e. Dedicated 1:1 in common factor, then consult successfully, with the territory inner tunnel SLA rank of this Dedicated 1:1 as this territory.
The user, continues to transmit so at these realm entry points, node is left intact to the SLA mapping object not to making warranty term at other territory downstream.
In sum, the present invention is by the expansion RSVP, increase the mapping warranty term item in territory, realized at the different strategy of the configuration of same area not, improved professional stability through the relatively poor territory of condition the time, and the resource utilization during through the better territory of condition, thereby reduced the operating cost that administers and maintains.
The above; only for the preferable embodiment of the present invention, but protection scope of the present invention is not limited thereto, and anyly is familiar with those skilled in the art in the technical scope that the present invention discloses; the variation that can expect easily or replacement all should be encompassed within protection scope of the present invention.Therefore, protection scope of the present invention should be as the criterion with the protection range of claim.
Claims (8)
1, a kind of definite method of mapping relation between cross-domain service domain interior domains is characterized in that, comprising:
The entrance in A, territory receives the PATH of the business foundation that carries service level agreement mapping object information;
B, determine service level agreement mapping relations between cross-domain service domain interior domains in conjunction with the consulting tactical data in the territory, service level agreement place of described service level agreement mapping object information and each node configuration.
2, definite method of a kind of mapping relation between cross-domain service domain interior domains as claimed in claim 1 is characterized in that, the service level agreement mapping object information of carrying in the described PATH obtains by extended resources reservation protocol RSVP.
3, definite method of a kind of mapping relation between cross-domain service domain interior domains as claimed in claim 1 or 2, it is characterized in that the service level agreement mapping object information in the described PATH that receives comprises: territory ID, negotiation sign, best domain inner tunnel service level agreement rank, the highest territory inner tunnel service level agreement rank and minimum territory inner tunnel service level agreement rank.
4, definite method of a kind of mapping relation between cross-domain service domain interior domains as claimed in claim 3 is characterized in that, described negotiation sign is used to represent whether to allow to consult and/or allow the classification of negotiation.
5, definite method of a kind of mapping relation between cross-domain service domain interior domains as claimed in claim 4 is characterized in that, the consulting tactical data in the territory, service level agreement place of described each node configuration are kept in the local data base.
6, definite method of a kind of mapping relation between cross-domain service domain interior domains as claimed in claim 4, it is characterized in that the consulting tactical data in the territory, service level agreement place that disposes on the described node comprise: this territory the highest service level agreement rank of receptible territory inner tunnel, and lowest service level consult rank, default rank and/or operator and specific resources resisted the particular determination rank of being done.
7, definite method of a kind of mapping relation between cross-domain service domain interior domains as claimed in claim 6 is characterized in that, described step B further comprises:
If there be not the territory identical in the B1 PATH, then determine the service level agreement mapping relations, or use prior art to determine the service level agreement mapping relations according to the default rank in the current field with the current field ID; Or,
If have the territory ID identical in the B2 PATH, then in conjunction with among both the service level agreement mapping relations being determined in the qualification in this territory with the current field ID.
8, definite method of a kind of mapping relation between cross-domain service domain interior domains as claimed in claim 7 is characterized in that, described step B2 specifically comprises:
Do not allow to consult the protection level that then adopts the best level conduct in this PATH to determine if consult in the B21 PATH to be masked as; If described best level is not in the service level agreement policy data of this each node configuration of territory, then road construction is failed; Or,
If consulting in the B22 PATH to be masked as allows negotiation, and in service level agreement mapping object and this domain policy data qualification in this territory is not existed the protection level of common permission, then road construction failure; Or,
Allow to consult if consult in the B23 PATH to be masked as, and have a common protection level that allows, then set up the territory inner tunnel according to this rank; If there is the protection level of a plurality of common permissions; then select: in the PATH in best level or this domain policy data default rank or wherein with PATH in the rank of the best level difference minimum stipulated; if or the rank of a plurality of difference minimums, then optional one arranged.
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102238439A (en) * | 2010-04-30 | 2011-11-09 | 中兴通讯股份有限公司 | Control method and system of business mapping process based on G.709 |
| CN101848052B (en) * | 2009-03-27 | 2014-08-20 | 中国电信股份有限公司 | Service mapping configuration method and system of multi-domain network |
| CN109245949A (en) * | 2018-10-31 | 2019-01-18 | 新华三技术有限公司 | A kind of information processing method and device |
| CN113507475A (en) * | 2021-07-14 | 2021-10-15 | 杭州数梦工场科技有限公司 | Cross-domain access method and device |
-
2006
- 2006-02-17 CN CNB2006100078336A patent/CN100512303C/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101848052B (en) * | 2009-03-27 | 2014-08-20 | 中国电信股份有限公司 | Service mapping configuration method and system of multi-domain network |
| CN102238439A (en) * | 2010-04-30 | 2011-11-09 | 中兴通讯股份有限公司 | Control method and system of business mapping process based on G.709 |
| CN102238439B (en) * | 2010-04-30 | 2014-12-10 | 中兴通讯股份有限公司 | Control method and system of business mapping process based on G.709 |
| CN109245949A (en) * | 2018-10-31 | 2019-01-18 | 新华三技术有限公司 | A kind of information processing method and device |
| CN109245949B (en) * | 2018-10-31 | 2022-03-01 | 新华三技术有限公司 | Information processing method and device |
| CN113507475A (en) * | 2021-07-14 | 2021-10-15 | 杭州数梦工场科技有限公司 | Cross-domain access method and device |
| CN113507475B (en) * | 2021-07-14 | 2022-12-23 | 杭州数梦工场科技有限公司 | Cross-domain access method and device |
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|---|---|
| CN100512303C (en) | 2009-07-08 |
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