CN101001124B - Method and device for updating service configuration information - Google Patents

Abstract

The invention discloses a method and a device for updating service configuration information. The method includes: obtaining channel fault information of a service, and determining the level of the channel where the fault occurs; obtaining configuration information of the service, and pointing the pointer between the faulty channel and the channel at the upper level in the configuration information of the service to other An available upper-level channel; update the configuration information of the service according to the change of the pointer; and refresh the matrix of the service affected by the fault according to the updated service configuration information. Utilizing the method and device provided by the embodiment of the present invention not only can greatly increase the speed of updating service configuration information, but also greatly reduce the complexity of processing service configuration information when the service changes, thereby increasing the speed of service rerouting and ensuring The service interruption time is very short, thereby achieving millisecond-level protection of services.

Description

A method and device for storing and updating service configuration information

technical field

The invention relates to the field of network communication, in particular to a method and device for updating service configuration information.

Background technique

On the traditional SDH (Synchronous Digital Hierarchy) network, the management of services is directly configured by the user at each site with specific connection information, and the protection is limited to ring protection and chain protection. With the development of the optical transport network and the further expansion of the network scale, the management of services has become a very complicated task. In addition, the ring and linear protection methods in the traditional SDH network also limit the recovery ability of the network. In this case, the intelligent optical network becomes a development trend. The intelligent optical network is an optical transmission network that completes the automatic switching function of optical network connections under the control of the signaling network and has the ability to dynamically configure network resources on demand. Its core is to introduce a control plane into the optical transport network, realize real-time and dynamic on-demand allocation of network resources, optimize the use of network resources, and realize the intelligence of optical networks. The intelligent optical network has the advantages of easy management and stronger service protection and recovery capabilities, and can meet users' needs for dynamic resource allocation, efficient protection and recovery capabilities, and rapid development of new services. Among them, rerouting restoration is one of the important characteristics of the intelligent optical network.

The current intelligent optical network is mainly used in the backbone network. At this network level, the service granularity is mainly VC4 (virtual container virtual container-4)-level high-order services, and most manufacturers’ equipment currently only supports VC4 high-order services. Channel smart business. With the development and popularization of the intelligent optical network, the intelligent optical network gradually extends to the metropolitan area network. In the land network of the city, the application of the low order business is more and more. For example, the industry has already proposed 80G low-order cross-connect capacity equipment. With such a large capacity, the number of VC12 low-order services will reach tens of thousands. In this way, when rerouting and restoring low-order services, data processing needs to be performed on a large number of services, so a processing solution is required to realize fast rerouting of low-order services.

Please refer to FIG. 1 . FIG. 1 is a schematic diagram of service configuration information of low-order services in the prior art. As shown in Figure 1, the arrows indicate the attachment relationship, and the solid line connection indicates the content. A business manager manages multiple low-level business objects. Each business object includes channel information occupied by the service at the source and sink. The channel information includes: source board number, optical port number, high-order channel number, The channel number and the board position number, optical port number, high-order channel number, and low-order channel number of the sink.

In the prior art, when it is necessary to use the high-order service channel B to protect the low-order services in the service channel A, that is, if the high-order channel A fails, all the low-order services in the high-order channel need to be protected. When rerouting, first loop through all business objects, find out the business objects affected by the fault (maybe a single board, optical port or high-order channel fault), delete these business objects affected by the fault, and refresh the business Relevant information; then assign a new board position number, optical port number, high-order channel number, and low-order channel number to the business object affected by the fault, recreate the business object, and refresh the business-related information; perform rerouting according to the refreshed business information , the affected low-order services are transmitted in the new service channel.

From the above description of the technical solutions for updating service configuration information in the prior art, it can be seen that regardless of the faults of single boards, optical ports, or high-order channels, low-order service rerouting must be achieved through traversal of service information. Refresh of business object information. As the number of services increases, the efficiency of traversal cannot meet the requirement of millisecond-level protection time for rerouting, especially for a large number of low-order services. When the fiber is interrupted, the failure will affect N high-order channels. Since the bandwidth of a high-order channel VC4 can establish 63 VC12 low-order services, the number of services that need to be added or deleted at the same time is N*63. For such a large business volume, according to the existing technical solution, it is necessary to traverse all business objects, then delete the business objects affected by the fault, and then create new business objects, so as to update the business configuration information. Because it takes a long time to update the service configuration information, the switching process is often very slow, and the switching time often reaches several minutes in extreme cases. But for telecom operators, service interruption time of second or minute level is unacceptable. Therefore, the existing technical solutions cannot meet the switching time requirement when a large number of low-order services are rerouted.

Contents of the invention

In view of this, the present invention provides a method and device for storing and updating service configuration information, so that the service configuration information can be quickly switched, and then fast rerouting of services can be realized, and service interruption time can be greatly reduced.

The purpose of the present invention is achieved through the following technical solutions:

A method for storing service configuration information, comprising:

Taking channels of different levels occupied by the business at the source as objects, establishing pointer connections between objects at different levels at the source;

Using channels of different levels occupied by the service at the sink as objects, establishing pointer connections between objects of different levels at the sink;

Establishing two-way pointers pointing to the source-end channel and the sink-end channel respectively for the service, and storing the two-way pointers as service configuration information; wherein, the channels of different levels include low-order channels VC12 or VC3, high-order channels Channel VC4, optical port and single board.

Correspondingly, the embodiment of the present invention also discloses a method for updating service configuration information, the method including:

Obtain the channel failure information of the business and determine the level of the channel where the failure occurred;

Obtain the configuration information of the service, and point the pointer between the faulty channel and the upper-level channel in the configuration information of the service to other available upper-level channels;

updating the configuration information of the service according to the change of the pointer;

Refresh the matrix of the services affected by the fault according to the updated service configuration information; wherein,

The service configuration information is specifically two-way pointers of the service respectively pointing to the channel occupied by the source end and the channel occupied by the sink end;

The channels occupied by the source end and the sink end include a low-order channel VC12 or VC3, a high-order channel VC4, an optical port, and a single board.

Based on the same idea of the method disclosed in the embodiment of the present invention, the embodiment of the present invention also provides a device for updating service configuration information, which includes:

The service information storage module is used to store current service configuration information; the current service configuration information is a bidirectional pointer of the service pointing to the channel occupied by the service at the source end and the channel occupied at the sink end;

The available channel information storage module is used to store other available channel resource information;

A pointer switching module, configured to obtain current service configuration information from the service information storage module and obtain other available channel resource information from the available channel information storage module when the channel of the service source and/or sink fails; and After pointing the pointer between the faulty channel object and the upper-level channel object in the service configuration information to the available upper-level channel object, instruct the service information storage module to update and store new service configuration information;

The matrix processing module refreshes the matrix for the service according to the updated service configuration information;

The channels occupied by the source end and the sink end include a low-order channel VC12 or VC3, a high-order channel VC4, an optical port, and a single board.

It can be seen from the above that the present invention realizes the storage of service configuration information by storing the bidirectional pointers of the service pointing to the channel of the source end and the sink end, so that the configuration information of the service at the source end and the sink end is integrated. When a certain level of service channel fails and the service needs to be rerouted, the service configuration information can be quickly updated only by switching the pointer in the service configuration information. Therefore, fast rerouting can be realized according to the updated service configuration information, avoiding In the technology, the configuration information of all business objects must be traversed to update the business information, which leads to the problem that it takes a long time to update the business configuration information, which greatly reduces the interruption time of the business.

Description of drawings

FIG. 1 is a schematic diagram of service configuration information in the prior art;

Fig. 2 is a flow chart of a method for storing service configuration information disclosed by an embodiment of the present invention;

FIG. 3 is a schematic diagram of service configuration information obtained by applying the method disclosed in the embodiment of the present invention;

FIG. 4 is a flow chart of a method for updating service configuration information disclosed in an embodiment of the present invention;

FIG. 5 is a schematic diagram of pointer switching when updating service configuration information due to high-order channel failure in an embodiment of the present invention; and

Fig. 6 is a schematic structural diagram of a device for updating service configuration information disclosed by an embodiment of the present invention.

Detailed ways

In order to make the object, technical solution and advantages of the present invention clearer, further detailed description will be given below in conjunction with the accompanying drawings and embodiments of the present invention.

Please refer to FIG. 2. FIG. 2 discloses a flowchart of a method for storing service configuration information according to an embodiment of the present invention. As shown in FIG. 2, the method includes:

Step S201, taking channels of different levels occupied by the business at the source as objects, and establishing pointer connections between objects of different levels at the source;

For example, if the source of a certain low-order service is a VC12 low-order channel, a pointer connection is used between this VC12 and its higher-level higher-order channel VC4. Similarly, the VC4 high-order channel and its higher-order channel Pointer connections are used between the first-level optical ports and between the optical ports and the higher-level single boards to which they belong.

Step S202, taking channels of different levels occupied by the service sink as objects, and establishing pointer connections between objects of different levels at the sink;

Correspondingly, for the sink end of the business, objects of different levels are connected by pointers.

Step S203, establishing bidirectional pointers from the service pointing to the source channel and the sink channel respectively, and storing the bidirectional pointers as service configuration information.

For the channel information occupied by the source end and the sink end corresponding to each service, the specific board, optical port, high-order channel and low-order channel information of the service at the source and sink Pointer to the source end and service sink end.

Please refer to FIG. 3 , which is a schematic diagram of service configuration information obtained by applying the method disclosed in the embodiment of the present invention. As shown in Figure 3, the channels of different levels occupied by the service at the source end and the sink end, such as single boards, optical ports, VC4 high-order channels, VC12 low-order channels, or VC3 low-order channels are used as objects respectively. The relationship between objects is not isolated, but connected by pointers. The service configuration information no longer saves information such as the board number, optical port number, high-order channel number, and low-order channel number of the source and sink respectively. It only needs to save the bidirectional pointers of the business to the source and sink to complete the service configuration information. storage.

Based on the method for storing service configuration information disclosed by the embodiment of the present invention, the embodiment of the present invention provides a method for realizing fast service rerouting.

Please refer to FIG. 4. FIG. 4 is a flowchart of a method for updating service configuration information disclosed in an embodiment of the present invention. As shown in FIG. 4, the method includes:

Step S401, acquiring service channel fault information, and determining the level of the faulty channel;

The specific process of determining the faulty channel is the prior art, and will not be described in detail here.

Step S402, obtaining the service configuration information of the service, and pointing the pointer between the faulty channel and the upper-level channel in the service configuration information to other available upper-level channels;

In this step, for example, due to failure of the VC4 high-order path, all low-order services included in the high-order path are unavailable. In order to realize fast rerouting of a large number of low-order services, it is first necessary to confirm the availability of higher-level channel resources.

Please refer to FIG. 5 . FIG. 5 is a schematic diagram of pointer switching when low-order services are rerouted due to high-order channel failures in an embodiment of the present invention. As shown in Figure 5, when the high-order channel of the service sink VC4 fails, all the low-order channels in the high-order channel are unavailable, that is, all the low-order services in the high-order channel VC cannot be normal transmission. You need to confirm whether there are other available optical ports. The other available optical ports may be pre-configured standby resources, or may be automatically discovered or found when VC4 fails. If optical port 2 is available, it indicates that all VC4 high-order channels included in optical port 2 and all VC12 low-order channels under VC4 high-order channels are available, and then point the sink fault VC4 in the service configuration information to optical port 1 pointer to other available optical port 2. After pointer switching, the VC4 high-order channel is now connected to the new optical port 2, so the VC4 becomes a VC4 object under the optical port 2, and the VC12 and other objects attached to the VC4 object automatically follow the mount The relationship changes to the VC4 that needs to be switched to. What needs to be explained here is that what is switched here is the configuration information of the service, but actually the physical relationship between the channel objects at each level remains unchanged.

The available optical port 2 and its included VC4, and between the VC4 and included VC12 or VC3 also use pointer connections.

Further, the pointer originally pointing to the available optical port 2 may also point to the upstream optical port 1 of the faulty VC4.

Step S403, updating the configuration information of the service according to the change of the pointer;

Step S404, performing matrix refresh on the services affected by the fault according to the reconfigured service information;

Because the specific channel information of each level is no longer saved in the business object, but bidirectional pointers pointing to the channel occupied by the service source end and the channel occupied by the sink end are stored. In this way, due to the change of the attachment relationship of each object, the VC12 low-order channel directly connected to the service automatically follows the change of the attachment relationship to the VC4 that needs to be switched to. In this way, the service configuration information can be quickly updated by changing the pointers between channel objects of different levels according to the different fault channel levels, without traversing all the service information. Similarly, other business-related information is automatically updated due to changes in the attachment relationship.

When a VC12 low-order channel fails, it is only necessary to point the pointer connection between VC12 and VC4 in the service configuration information to other available VC4 to realize the switching of the service configuration. Specifically, the connection pointer between VC4 and VC12 in the service configuration information may be exchanged with other standby pointers between VC4 and VC12.

Similarly, if the low-order channel VC3 service fails, the connection pointer between VC4 and VC3 in the service configuration information can be exchanged with the spare pointer between VC4 and VC3.

If the optical fiber is interrupted, the connection pointer between the single board and the optical port in the service configuration information can be directly exchanged with the connection pointers between other available working single boards and the optical port.

Considering a more extreme situation, if a board-level replacement is required, it is only necessary to exchange the connection pointer between the root node and the board in the service configuration information, so as to achieve the purpose of switching the service data configuration on the entire board.

According to the low-order service rerouting method disclosed in the embodiment of the present invention, when a large number of low-order services are configured, whether the rerouting is triggered by an optical port alarm, a high-order channel alarm or a low-order channel alarm, the service can be changed by changing the Pointer connections between different levels of channels in the configuration information to realize switching of business configurations.

Based on the same idea as the above method, the present invention also discloses a device for updating service configuration information. It should be noted that since the method embodiment and the device embodiment belong to the same inventive concept, they have many identical or corresponding technical features, and these identical or corresponding technical features are only briefly described and will not be repeated here.

Please refer to FIG. 6 . FIG. 6 is a schematic structural diagram of an apparatus for updating service configuration information disclosed by an embodiment of the present invention. As shown in Figure 6, the device includes:

The business information storage module is used to store current business configuration information;

The current service configuration information is a bidirectional pointer from the service pointing to the channel occupied by the service at the source end and the channel occupied at the sink end;

Among them, the channel information of the service source is specifically based on the channels of different levels of the service source, and the channel objects of each level are connected by pointers; the channel information of the service sink is specifically based on the channels of different levels of the service sink. Level channel objects are connected by pointers;

An available channel information storage module, configured to store information about available channel resources;

The pointer switching module is used to point the pointer between the channel object and the upper-level channel object to other available higher-level channels after obtaining the current service configuration information from the service information storage module when a channel object of a certain level fails channel object, and instruct the service information storage module to update and store new service configuration information;

The matrix processing module refreshes the matrix according to the updated service configuration information.

The service rerouting device may further include a fault information obtaining module, configured to obtain channel fault information and send the fault information to the pointer switching module.

Utilizing the method and device provided by the embodiment of the present invention not only can greatly increase the speed of updating service configuration information, but also greatly reduce the complexity of processing service configuration information when the service changes, thereby increasing the speed of service rerouting and ensuring The service interruption time is very short, thereby realizing millisecond-level protection of low-order services.

The above is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any person familiar with the technology can easily think of changes or replacements within the technical scope disclosed in the present invention. , should be covered within the protection scope of the present invention.

Claims (5)

1. A method for storing service configuration information, comprising:

establishing pointer connection between different levels of objects of a source end by taking channels of different levels occupied by a service at the source end as objects;

establishing pointer connection between the objects at different levels of the destination end by taking the channels at different levels occupied by the service at the destination end as the objects;

establishing bidirectional pointers of the service respectively pointing to the source end channel and the sink end channel, and storing the bidirectional pointers as service configuration information; the channels of different levels comprise a low-order channel VC12 or VC3, a high-order channel VC4, an optical port and a single board.

2. A method for updating service configuration information, comprising:

acquiring channel fault information of a service, and determining a channel level with a fault;

acquiring configuration information of a service, and pointing a pointer between the fault channel and a previous-stage channel in the configuration information of the service to other available previous-stage channels;

updating the configuration information of the service according to the change of the pointer;

matrix refreshing is carried out on the service affected by the fault according to the updated service configuration information; wherein,

the service configuration information is a bidirectional pointer that the service points to the source end occupation channel and the sink end occupation channel respectively;

the channels occupied by the source end and the sink end comprise a low-order channel VC12 or VC3, a high-order channel VC4, an optical port and a single board.

3. The method of claim 2, wherein the available upper level channel is obtained by reserving resources in advance or automatically discovering or looking up after a failure occurs.

4. An apparatus for updating service configuration information, comprising:

the service information storage module is used for storing the current service configuration information; the current service configuration information is a bidirectional pointer of the service pointing to a channel occupied by the service at a source end and a channel occupied at a destination end;

the available channel information storage module is used for storing other available channel resource information;

a pointer switching module, configured to, when a channel of the service source and/or the service sink fails, obtain current service configuration information from the service information storage module and obtain other available channel resource information from the available channel information storage module; after a pointer between a fault channel object and a previous-stage channel object in the service configuration information points to an available previous-stage channel object, the service information storage module is instructed to update and store new service configuration information;

the matrix processing module refreshes a matrix for the service according to the updated service configuration information;

the channels occupied by the source end and the sink end comprise a low-order channel VC12 or VC3, a high-order channel VC4, an optical port and a single board.

5. The apparatus of claim 4, wherein the apparatus further comprises:

and the fault information acquisition module is used for acquiring channel fault information and sending the fault information to the pointer switching module.

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