CN100365992C - Method of resource consistency management between telecommunication devices - Google Patents
Method of resource consistency management between telecommunication devices Download PDFInfo
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- CN100365992C CN100365992C CNB2005100023729A CN200510002372A CN100365992C CN 100365992 C CN100365992 C CN 100365992C CN B2005100023729 A CNB2005100023729 A CN B2005100023729A CN 200510002372 A CN200510002372 A CN 200510002372A CN 100365992 C CN100365992 C CN 100365992C
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Abstract
The present invention relates to a method for managing the resource consistency between telecommunication devices. The method comprises: a telecommunication device through which the service connection passes sends a resource consistency check message to a next hop telecommunication device connected with the telecommunication device; after the next hop telecommunication device receives the resource consistency check message, the next hop telecommunication device checks whether the states of the resources connected by the services in the telecommunication devices at both ends are consistent, and maintains or removes the resources connected by the services in the communication devices according to the check result. The present invention realizes the consistency check of the resources among CAs, CM and CNs in an IP telecommunication network, and therefore, the situation that system resources connected by the services are abnormally suspended can be effectively avoided. The present invention is convenient to record the on-line information of the service connection more accurately, the reliability of the IP telecommunication network is improved, and the resource utilization ratio of the network can be improved.
Description
Technical field
The present invention relates to network communications technology field, relate in particular to the management method of resource consistency between a kind of telecommunication apparatus.
Background technology
Along with the development of Internet (the Internet) technology, and the quick growth of user's request, various multi-media network services are fallen over each other to emerge in large numbers.The multimedia service that occurs in the network a large amount of bandwidth resources in the network that will account for.Therefore, when sudden high FTP (file transfer protocol (FTP)) being arranged on the network or contain the business such as HTTP (HTML (Hypertext Markup Language)) of image file, the real time business comparatively responsive to characteristics such as network transfer delay, delay jitters will be subjected to very big influence; And then the key business that causes needing in the network to guarantee is difficult to be transmitted reliably.For this reason, various QoS technology are arisen at the historic moment.For satisfying the demand of QoS, IETF has advised a lot of service models and mechanism.
The industry more application is to use integrated service model (Int-Serv) at the access and the edge of network at present, uses differentiated service model (Diff-serv) at server.Because differentiated service model (Dif-serv) is only set priority level and ensured the QoS measure, therefore, corresponding QoS ensures that effect is difficult to prediction.For this reason, industry begins to introduce an independently bearer control layer for backbone network differentiated service Diff-Serv, set up the special Diff-erv qos signaling mechanism of a cover, just set up a resource management layer specially for Differentiated Services Diff-Serv network, the topological resource of supervising the network, being called for this resource management Differentiated Services Diff-Serv mode has the Diff-Serv of independent bearing control layer model.
In the Differentiated Services of bearer control layer (Diff-Serv) model is arranged independently, load network resource manager has disposed rule and network topology in { comprising bandwidth broker device (Bandwidth Broker) or QoS server/explorer }, is used to client's service bandwidth application Resources allocation.As shown in Figure 1, the bearer network Control Server of each management domain transmits client's service bandwidth application request and result each other by signaling, and load network resource manager is the routing information that please distribute in the business, or the like.Normally each CN (nucleus equipment) that goes up to bearer network at CM (load network resource manager) simulates a routing table, and pathfinding in the territory of each CM realizes professional route in the realization bearer control layer.Resource request of each concrete type of service (being concrete Business Stream) and a series of LSP (label switched path) bind, and promptly utilize the resource of corresponding LSP, when calling is finished, LSP and other resource are discharged again.
Concrete processing procedure is: when the service bandwidth application of bearer control layer process user, will determine the path of customer service.Load network resource manager can notify edge router to transmit Business Stream according to the path of appointment.Bearer network utilizes MPLS (multiprotocol label switching) technology usually, use the resource reservation mode to set up LSP, use the demonstration routing mechanism of RSVP-TE (RSVP-traffic engineering) or CR-LDP (limited tag distribution protocol) to set up LSP end to end along the service flow path of bearer control layer appointment.
Usually, after professional connection was set up successfully, the CM of the CA of service layer, bearer network key-course and the CN equipment of bearer network can be preserved the professional resource state information that takies that is connected in IP Telecommunication Network.Because abnormal factors, for example system busy or communication are subjected to the unusual reason of disturbing or the like and may cause occurring between described CA (Call Agent), CM, the CN the inconsistent situation of system resource, for example, owing to cause unusually to keep the resource status that this business connects on some equipment, and some equipment have been deleted corresponding resource state information.In IP Telecommunication Network,, then may cause the system resource of telecommunication apparatus forever to be taken the phenomenon appearance if the same professional resource occupation state that connects of equipment room is inconsistent.
At the problems referred to above, the present system resource that does not also have a kind of reliable resource consistency checking mechanism to go out and discharge the resource status that professional connection takies between CA, CM and the CN inconsistent (connection has not had application value to corresponding business) with real-time searching.
Summary of the invention
In view of above-mentioned existing in prior technology problem, the management method that the purpose of this invention is to provide resource consistency between a kind of telecommunication apparatus, thereby effectively avoid because the same professional resource occupation state that connects of equipment room is inconsistent, the phenomenon that the system resource that causes is forever taken occurs, and has guaranteed the resource utilization in the communication network.
The objective of the invention is to be achieved through the following technical solutions:
The invention provides the management method of resource consistency between a kind of telecommunication apparatus, comprising:
A, the professional telecommunication apparatus that connects process send resource consistency to connected next jumping telecommunication apparatus and check message;
After B, next jumping telecommunication apparatus received that described resource consistency is checked message, whether the resource status that the business in the telecommunication apparatus of two ends of checking connects was consistent;
C, according to check result, if the resource status that the business in the telecommunication apparatus of two ends connects is inconsistent, then discharge the described professional resource that takies that connects.
Described steps A comprises:
Connect in business on the telecommunication apparatus of process, regularly jump telecommunication apparatus and send resource consistency message to next.
Described steps A also comprises:
Start keep-alive timer and message timer on telecommunication apparatus, the timing length of described message timer is less than the timing length of keep-alive timer;
When the message timer expiry, jump telecommunication apparatus to next and send resource consistency message, and wait for and return response message;
When receiving described response message, with the keep-alive timer restart.
Described steps A also comprises:
Telecommunication apparatus sends resource bid message to connected next jumping telecommunication apparatus; in the described resource bid message; carry keep-alive timer timing length, the telecommunication apparatus that receives described message is determined message timer timing length according to keep-alive timer timing length.
Described step B comprises:
After described next jumping telecommunication apparatus receives that described resource consistency is checked message, check whether exist corresponding business to connect in the local terminal telecommunication apparatus, if exist, whether the resource status that the business in the telecommunication apparatus of two ends of then checking connects is consistent, otherwise, abandon described resource consistency and check message.
Among the described step C, discharge the described professional processing that connects the resource that takies and comprise:
The telecommunication apparatus of receiving described resource consistency inspection message returns response message to the opposite end;
When the keep-alive timer expiry, confirm that resource is inconsistent between the telecommunication apparatus of two ends, and on the local terminal telecommunication apparatus, discharge the resource that this business connection takies, remove described professional the connection.
Described step C also comprises:
The inconsistent telecommunication apparatus of resource also needs to sending the telecommunication apparatus transmission resource release message that corresponding business connects process between the telecommunication apparatus of described definite two ends.
Described step C also comprises:
When the telecommunication apparatus that sends resource consistency inspection message is received the resource release message of sending, then discharge corresponding business and connect the resource that takies, and remove the corresponding business connection.
Described step C also comprises:
When between the telecommunication apparatus of two ends during resource consistence, then keep this business to connect the resource that takies.
Described step C also comprises:
When the plural telecommunication apparatus of described professional connection process, then determining also needs to continue transmission resource consistency inspection message to the telecommunication apparatus of next jumping with the telecommunication apparatus of opposite end telecommunication apparatus resource consistence, and execution in step B.As seen from the above technical solution provided by the invention, the present invention has realized the consistency check of the resource of CA, CM in IP Telecommunication Network and CN equipment room, thereby can go out the inconsistent situation of resource by real-time searching, and discharge the inconsistent professional system resource that connects in the telecommunication apparatus that takies of resource status.Therefore, the present invention can prevent effectively that business is connected the situation appearance that the system resource on each equipment is hung unusually, be convenient to the online information that accurate more record traffic connects, increased the reliability of IP Telecommunication Network, and can improve the resource utilization in the network.
Description of drawings
Fig. 1 is bearer control layer network model schematic diagram independently;
Fig. 2 to Fig. 5 is respectively the process chart that the equipment room resource consistency detects.
Embodiment
Usually, after professional connection was set up successfully, the CM of the CA of service layer, bearer network key-course and the CN equipment of bearer network can be preserved the professional state information that is connected in IP Telecommunication Network.Because abnormal factors, the inconsistent situation of system resource may appear between described CA, CM and the CN, therefore, need a kind of reliable resource consistency checking mechanism, so that real-time searching goes out and the business that discharges connects the inconsistent system resource of two ends resource status that takies, thereby improve the performance of network.
The invention provides the management method of professional connection resource in a kind of bearer network, the core concept of this method is to adopt the professional equipment room timed sending resource status that connects process to check message, whether consistent to realize that regularly inquiry business connects the professional connection resource state that writes down on each equipment of process, and inconsistent connection resource wherein discharged processing, hung to avoid resource.
The specific implementation of method of the present invention as shown in Figures 2 and 3, wherein, the processing procedure that Fig. 2 checks for the equipment room resource consistency that does not occur under the inconsistent situation of resource, the processing procedure that equipment room resource consistency under the inconsistent situation of resource is checked appears in Fig. 3, will describe the processing procedure under two kinds of situations respectively below.
With reference to shown in Figure 2, described resource consistency checking process comprises:
Step 21: requesting party's telecommunication apparatus sends resource bid message to the Requested Party telecommunication apparatus, and is carrying KA (keep-alive) duration that corresponding business connects in the described message;
Step 22: after the Requested Party telecommunication apparatus is received described resource bid message, return resource bid success response message to the requesting party, and at local terminal startup KA timer, corresponding timing length is the KA duration that carries in the described resource bid message, also start another message timer simultaneously, corresponding timing length is less than described KA duration, can be the time of the 1/4-3/4 of KA duration, to be that example describes to be fixed as the 1/3KA duration below, also this message timer will be called the 1/3KA timer for convenience of description;
Step 23: after requesting party's telecommunication apparatus is received described resource bid success response, start the KA timer of local terminal, corresponding timing length still is the KA duration, simultaneously still need to start a message timer at requesting party's telecommunication apparatus, corresponding timing length is an example with the 1/3KA duration still, promptly can be called the 1/3KA timer;
Step 24: promptly every through the 1/3KA duration when the message timer expiry on requesting party's telecommunication apparatus, then send a resource consistency and check message to the Requested Party telecommunication apparatus, be called for short KA message, and wait for that Requested Party returns response message;
Step 25: after Requested Party sends resource bid response,,, then must return a KA message and give the requesting party if determine both sides' resource consistence (being this service connected state unanimity that both sides write down) if when receiving requesting party's KA message;
Equally, on described Requested Party telecommunication apparatus, when the message timer expiry, also need to send KA message to requesting party's telecommunication apparatus, and etc. the requesting party return response message;
Step 26: when the requesting party receives the KA message (being equivalent to response message) that Requested Party returns, then with the keep-alive timer, i.e. KA timer restart; perhaps; Requested Party when receiving the KA message that the other side (requesting party) sends, then with the keep-alive timer, i.e. KA timer restart.
When both sides' resource consistence, then between both sides with circulation execution in step 23 to step 26.
For the inconsistent situation of resource occurring, then as shown in Figure 3, specifically comprise:
Step 31: when Requested Party is not received described KA message in KA timer timing length, KA timer expiry then, can determine that this business connection disconnects this moment, or it is unavailable, be that the inconsistent situation of resource appears in two ends communication equipment both sides, and execution in step 32, remove this business and connect, discharge this business and connect the resource that takies;
Step 33: after Requested Party is received the KA message that the requesting party sends, confirm not have described KA message, then abandon corresponding message, and need not to return KA message to the requesting party;
Equally, if in the timing length of KA timer, do not receive the KA message of Requested Party, the then operation of execution in step 32 the requesting party.
Among the present invention, the transmission of can packing of described KA message, as long as be no more than a MTU (MTU), still, on the treatment principle of KA message for independently to finish.
In above-mentioned normal process, employing be the processing mode of point-to-point, two equipment rooms carry out the resource inspection to each connection, for each KA message, all need to respond.If the processing mode to above-mentioned point-to-point is improved, then the resource consistency that can connect the business that comprises plural telecommunication apparatus is checked.
Concrete implementation as shown in Figure 4 and Figure 5, Fig. 4 is not for the processing procedure that resource consistency is checked between the more than two devices under the inconsistent situation of resource occurring, Fig. 5 is the processing procedure that resource consistency is checked between the more than two devices that occurs under the inconsistent situation of resource, will describe the processing procedure under two kinds of situations respectively below.
With reference to Fig. 4 and shown in Figure 5, described resource consistency checks that processing procedure comprises:
Equally, when telecommunication apparatus sends resource bid message, carry KA timer timing length in the described message, after described telecommunication apparatus sends stream successful response message of mapping or resource bid success message, start described KA timer;
When being a plurality of telecommunication apparatus, as the CM1 among the figure, CM2, CN, CA1 etc., then each telecommunication apparatus all needs to start the KA timer, simultaneously, on the telecommunication apparatus that sends resource bid message at first, also needs to start the 1/3K timer, on the CA1 among the figure;
After described CA1 receives the resource bid response, when the 1/3KA timer expiry, promptly every time, just send one and be used to connect the KA message that refreshes through 1/3KA timer timing length;
When CM1, CM2, CN receive described KA message:
If there is this connection, and consistent with the opposite end connection resource, then continue to transmit this KA message downstream, if inconsistent, then remove local the connection, and send resource release message with the opposite end connection resource;
If do not have this connection, then abandon this KA message;
For the telecommunication apparatus of centre,, do not need to return KA message after receiving described KA message as CM1 and CM2; After receiving KA message for the end points telecommunication apparatus that connects,, then need the KA message of receiving is responded, promptly return KA message as the CN among Fig. 4 and Fig. 5;
If the some professional KA timer expiry that connects on some telecommunication apparatus thinks equally that then this connection disconnects, need remove this connection in this locality, and send resource release message to other telecommunication apparatus that should connect process.
In sum, the present invention can prevent effectively that business is connected the system resource that takies on each telecommunication apparatus and is hung unusually, has increased the reliability of IP Telecommunication Network, is convenient to the online information that accurate more record traffic connects.
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 (10)
1. the management method of resource consistency between a telecommunication apparatus is characterized in that, comprising:
A, the professional telecommunication apparatus that connects process send resource consistency to connected next jumping telecommunication apparatus and check message;
After B, next jumping telecommunication apparatus received that described resource consistency is checked message, whether the resource status that the business in the telecommunication apparatus of two ends of checking connects was consistent;
C, according to check result, if the resource status that the business in the telecommunication apparatus of two ends connects is inconsistent, then discharge the described professional resource that takies that connects.
2. the management method of resource consistency is characterized in that between telecommunication apparatus according to claim 1, and described steps A comprises:
Connect in business on the telecommunication apparatus of process, regularly jump telecommunication apparatus and send resource consistency message to next.
3. the management method of resource consistency is characterized in that between telecommunication apparatus according to claim 2, and described steps A also comprises:
Start keep-alive timer and message timer on telecommunication apparatus, the timing length of described message timer is less than the timing length of keep-alive timer;
When the message timer expiry, jump telecommunication apparatus to next and send resource consistency message, and wait for and return response message;
When receiving described response message, with the keep-alive timer restart.
4. the management method of resource consistency is characterized in that between telecommunication apparatus according to claim 3, and described steps A also comprises:
Telecommunication apparatus sends resource bid message to connected next jumping telecommunication apparatus; in the described resource bid message; carry keep-alive timer timing length, the telecommunication apparatus that receives described message is determined message timer timing length according to keep-alive timer timing length.
5. according to the management method of resource consistency between claim 1,2,3 or 4 described telecommunication apparatus, it is characterized in that described step B comprises:
After described next jumping telecommunication apparatus receives that described resource consistency is checked message, check whether exist corresponding business to connect in the local terminal telecommunication apparatus, if exist, whether the resource status that the business in the telecommunication apparatus of two ends of then checking connects is consistent, otherwise, abandon described resource consistency and check message.
6. the management method of resource consistency is characterized in that between telecommunication apparatus according to claim 5, among the described step C, discharges the described professional processing that connects the resource that takies and comprises:
The telecommunication apparatus of receiving described resource consistency inspection message returns response message to the opposite end;
When the keep-alive timer expiry, confirm that resource is inconsistent between the telecommunication apparatus of two ends, and on the local terminal telecommunication apparatus, discharge the resource that this business connection takies, remove described professional the connection.
7. the management method of resource consistency is characterized in that between telecommunication apparatus according to claim 6, and described step C also comprises:
The telecommunication apparatus that the inconsistent telecommunication apparatus of resource also needs to connect process to corresponding business between the telecommunication apparatus of described definite two ends sends resource release message.
8. the management method of resource consistency is characterized in that between telecommunication apparatus according to claim 7, and described step C also comprises:
When the telecommunication apparatus that sends resource consistency inspection message is received the resource release message of sending, then discharge corresponding business and connect the resource that takies, and remove the corresponding business connection.
9. the management method of resource consistency is characterized in that between telecommunication apparatus according to claim 5, and described step C also comprises:
When between the telecommunication apparatus of two ends during resource consistence, then keep this business to connect the resource that takies.
10. the management method of resource consistency is characterized in that between telecommunication apparatus according to claim 9, and described step C also comprises:
When the plural telecommunication apparatus of described professional connection process, then determining also needs to continue transmission resource consistency inspection message to the telecommunication apparatus of next jumping with the telecommunication apparatus of opposite end telecommunication apparatus resource consistence, and execution in step B.
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| CNB2005100023729A CN100365992C (en) | 2005-01-19 | 2005-01-19 | Method of resource consistency management between telecommunication devices |
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| CNB2005100023729A CN100365992C (en) | 2005-01-19 | 2005-01-19 | Method of resource consistency management between telecommunication devices |
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| CN100365992C true CN100365992C (en) | 2008-01-30 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101232627B (en) * | 2007-01-26 | 2012-01-11 | 中兴通讯股份有限公司 | Method for ensuring resource obligate information consistency of access terminal and access network |
| CN101808103A (en) * | 2010-04-26 | 2010-08-18 | 中兴通讯股份有限公司 | Device and method for realizing point to point protocol data service disconnection |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20040008625A1 (en) * | 2002-04-24 | 2004-01-15 | Jae-Hwoon Lee | Method for monitoring traffic in packet switched network |
| CN1523819A (en) * | 2003-02-20 | 2004-08-25 | 华为技术有限公司 | Method for assigning route in network |
| CN1553580A (en) * | 2003-05-26 | 2004-12-08 | 华为技术有限公司 | Starting method for communication apparatus |
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20040008625A1 (en) * | 2002-04-24 | 2004-01-15 | Jae-Hwoon Lee | Method for monitoring traffic in packet switched network |
| CN1523819A (en) * | 2003-02-20 | 2004-08-25 | 华为技术有限公司 | Method for assigning route in network |
| CN1553580A (en) * | 2003-05-26 | 2004-12-08 | 华为技术有限公司 | Starting method for communication apparatus |
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