CN1592219A

CN1592219A - Method for managing resources based on planes

Info

Publication number: CN1592219A
Application number: CN 03157637
Authority: CN
Inventors: 陈悦鹏; 范灵源; 吴登超; 薛莉莉; 邹婷; 徐波
Original assignee: Huawei Technologies Co Ltd
Current assignee: Huawei Technologies Co Ltd
Priority date: 2003-09-02
Filing date: 2003-09-02
Publication date: 2005-03-09
Anticipated expiration: 2023-09-02
Also published as: CN100370736C

Abstract

This invention provides a management method for multi-plane resource including: A). dividing the path resource of each router into several parts, utilizing different resource management devices to manage different part path resources of said router, B) selecting a calling agent from different resource management devices to assign path resources by the calling request with the resource manager as the terminal; which divides the path resource of the router into several parts to form multiplane resources on the load control layer to avoid the service loss resulted from permanent or temporary faults of network derices.

Description

A kind of management method based on many plane resources

Technical field

The present invention relates to the administrative skill of resource, particularly about a kind of management method based on many plane resources.

Background technology

Along with the continuous expansion of internet scale, various network services are fallen over each other to emerge in large numbers, and advanced multimedia system also emerges in an endless stream.Because real time business is comparatively responsive to characteristics such as network transfer delay, delay jitters, when sudden high file transfer (FTP) being arranged on the network or contain the business such as hypertext transmission (HTTP) of image file, real time business will be subjected to very big influence; In addition, because multimedia service will take a large amount of bandwidth, so also will make and need guaranteed key business to be difficult to be transmitted reliably in the existing network.So, to be transmitted reliably for guaranteeing key business, various service quality (QoS, Quality of Service) technology is just arisen at the historic moment.The Internet engineering duty group (IETF, Internet Engineering Task Force) has proposed a lot of service models and mechanism, to satisfy the demand of QoS.What industry was relatively approved at present is to use integrated service (Int-Serv, Integrated Service) model at the access or the edge of network, and uses differentiated service (Diff-serv, Differentiated Service) model at server.

The Diff-serv model only ensures QoS by the measure of setting priority level, though this model has the high characteristics of line efficiency, concrete effect is difficult to prediction.Therefore, industry is that the Diff-Serv model of backbone network has been introduced an independently bearer control layer, set up the special Diff-Serv qos signaling mechanism of a cover, and set up a resource management layer specially for the Diff-Serv network, the topological resource of supervising the network, this resource management Diff-Serv mode is called as the Diff-Serv of independent bearing control layer model.Fig. 1 is the schematic diagram of this model, and wherein, 101 is service server, belongs to service control layer, can realize functions such as soft switch, as Call Agent (CA); 102 is load network resource manager, as explorer (CM, Connection Manager), belongs to bearer control layer; 103 is edge router (ER, Edge Router), and 104 is core router, and 103 and 104 all belong to bearer network.In this model, CM is responsible for configuration management rule and network topology, is client's service bandwidth application Resources allocation.Transmit client's service bandwidth application request and result between the CM of each management domain by signaling, and each CM is the routing information of professional application distribution etc.When the service bandwidth application of bearer control layer process user, will determine the path of customer service, CM can notify ER to transmit Business Stream according to the path of appointment.

In network configuration shown in Figure 1, after CA receives the call request that terminal sends, this call request is sent to source CM, by source CM is route in this territory of this call distribution, and determine next jumping CM, again by the path resource in next jumping CM distribution next stage territory, until purpose CM.

Because a CA only connects a CM, and each router resource only belongs to a CM, so if CM breaks down, its local all-router is all unavailable, the user that connect this ER this moment just can't use the ip voice business, bring very big inconvenience to the user, bring operational loss to operator simultaneously.

Therefore, the resource of router can be regarded a resource plane as in the prior art, and as the CM on this plane of management when breaking down, the resource that belongs to the plane is all unavailable, thereby causes that all users can't use business in this zone.

Summary of the invention

In view of this, the purpose of this invention is to provide a kind of management method, make under the situation of or temporary fault permanent, can connect professional at the network equipment based on many plane resources.

A kind of management method based on many plane resources comprises:

A. the path resource with each router is divided into several portions, utilizes different explorers to manage the path resource of this router different piece respectively;

B. service server is selected one from described different explorer, and is the call request dispense path resource of terminal by selected explorer.

Described selected explorer can select the highest explorer of priority to determine from different explorers by the priority of the explorer that sets in advance.

Described selected explorer can adopt load share method, uses polling mode to determine from different explorers.

Described selected explorer can select the less explorer of load to realize from different explorers according to service traffics information.

If the path resource with a router in the described steps A is divided into two parts, by described two parts path resource that two explorers are managed this router respectively, then step B may further include:

B1, receive the call request of terminal when service server after, whether detect the high explorer state of priority normal and whether resource is enough, if, then utilize the high explorer of described priority to distribute for this call request, otherwise execution in step B2;

B2, whether normal and whether resource enough, if then utilize the low explorer of priority to be this call request dispense path resource, otherwise this flow process is jumped out in the resource allocation failure if detecting the low explorer of priority.

Described explorer can be hierarchy or planar structure.

When explorer was hierarchy, the top layer explorer comprised two at least.

Described path resource can be the LSP resource.

A part of resource of described different explorer management router LSP, or manage a part of LSP resource.

The present invention is divided into several portions by the path resource with router, forms many plane resources at bearer control layer, thereby utilizes the resource of different explorer allocation manager Different Plane.This method can be evaded because the network equipment is permanent or temporary fault causes the method for traffic lost, improved the call completing rate of speech business, strengthened the stability of the network operation, and network topology structure there is good autgmentability, implement simple and reliablely, be easy to maintenance management.

Description of drawings

Fig. 1 is bearer control layer network model schematic diagram independently;

Fig. 2 is for realizing the network model schematic diagram of the inventive method;

Fig. 3 is the schematic flow sheet of a call distribution resource for adopting method of the present invention;

Fig. 4 is the hierarchy schematic diagram of bearer control layer CM of the present invention.

Embodiment

Core content of the present invention is: the path resource of a router is divided into several portions, utilize different CM to manage the path resource of this router different piece respectively, CA selects a CM from described different CM, carry out resource request by selected CM for this calling, to determine routed path and bandwidth reserved.Here, the path resource is label switched path (LSP) resource, the LSP resource of different CM management different pieces, and this is equivalent to the LSP resource of router is divided into a plurality of planes, utilizes each plane can distribute the LSP resource.

Selection CM for convenience is user's call distribution path, can be set to different priority by these different CM.Receive the call request of terminal as CA after, can select the high CM of priority.Certainly, also can adopt load share method, use polling mode, select a CM, can also select the less CM of load according to service traffics.

Lift preferred embodiment below and describe technical scheme of the present invention in detail.

Referring to shown in Figure 2, present embodiment is that LSP resource among the ER/BR is divided into identical two parts, and these two parts belong to CM1, CM2 management respectively, and promptly CM1, CM2 manage half resource of LSP among this ER/BR respectively, and the priority of CM1 is higher than CM2.Each CA connects two CM.

Referring to shown in Figure 3, utilize structure shown in Figure 2, be that a call request distributes the detailed process of route resource in the CM territory, source as follows:

Step 301, after CA receives the call request that terminal sends, judge whether the high CM1 of priority normal, if normally, then execution in step 302, otherwise, execution in step 303;

Step 302, judge whether the resource of router of CM1 management is enough, if enough, then this call distribution of CM1 LSP resource is finished route assignment in the territory, otherwise, execution in step 303;

Step 303, judge whether CM2 work is normal, if normal, then execution in step 304, otherwise this flow process is jumped out in the resource allocation failure;

Step 304, judge whether the router resource of CM2 management is enough, if enough, be this call distribution LSP resource then by CM2, finish route assignment in the territory, otherwise resource allocation is failed, and jumps out this flow process.

In CM finishes the territory after the route assignment, be according to this call request, determine that next jumps explorer, finish route assignment in the next field by next and explorer.Remaining processing is identical with above-mentioned handling process.By said process in bearer control layer is finished the territory and inter-domain routing, set up LSP path collection after, the user can carry out business according to the resource that the path set pair of LSP is answered.

In sum, when a CM fault or resource have occurred when not enough, promptly half resource of LSP resource is unavailable among this ER/BR, and this moment can be by configuration another one CM, use among this ER/BR second half dispense path resource in the LSP resource, still can provide required business to the user.Each CM can manage half resource of certain router LSP, also can be half LSP resource of management.Such as, 10 LSP are arranged in the router, the bandwidth of every LSP is 5M, then half resource of LSP is the resource of the 5M of 10 LSP, every LSP, is the resource of 10M and half LSP resource is 5 LSP, every LSP.

In addition, CM can be hierarchy or planar structure in bearer control layer.As shown in Figure 4, in bearer control layer, CM is a tree structure, and promptly hierarchy then requires top CM to have two at least.Its reason is if top layer has only a CM, and as CM2, when CM2 broke down, then all LSP that stride the resource request of management domain and bearing bed set up and can't realize.And if the CM of non-top layer breaks down, then can evade this problem by the change configuration.Certainly, CM also can be a planar structure.If but network topology is complicated, has then increased management difficulty.

Though an ER/BR can belong to a plurality of CM simultaneously, the spendable LSP resource of each CM this moment will certainly reduce, and reduces resource utilization.And increased the Network Management difficulty, strengthened the burden of the maintenance of network.So balanced consideration advises that still each ER/BR belongs to two CM.

The above only is preferred embodiment of the present invention, and is in order to restriction the present invention, within the spirit and principles in the present invention not all, any modification of being done, is equal to replacement, improvement etc., all should be included within protection scope of the present invention.

Claims

1, a kind of management method based on many plane resources is characterized in that, this method comprises:

2, method according to claim 1 is characterized in that, described selected explorer is to select the highest the determining of priority by the priority of the explorer that sets in advance from different explorers.

3, method according to claim 2 is characterized in that, the path resource with a router in the described steps A is divided into two parts, described two parts path resource of managing this router respectively by two explorers,

Step B further comprises:

4, method according to claim 1 is characterized in that, described selected explorer is to adopt load share method, uses polling mode to determine from different explorers.

5, method according to claim 1 is characterized in that, described selected explorer is according to service traffics information, selects the less explorer of load to realize from different explorers.

6, method according to claim 1 is characterized in that, described explorer is hierarchy or planar structure.

7, method according to claim 6 is characterized in that, when explorer was hierarchy, the top layer explorer comprised two at least.

8, method according to claim 1 is characterized in that, described path resource is the LSP resource.

9, method according to claim 8 is characterized in that, a part of resource of described different explorer management router LSP, or manage a part of LSP resource.