WO2015010654A1

WO2015010654A1 - Optical fiber link scheduling method, device and system

Info

Publication number: WO2015010654A1
Application number: PCT/CN2014/083051
Authority: WO
Inventors: 洪斌; 许高雄
Original assignee: 华为技术有限公司
Priority date: 2013-07-25
Filing date: 2014-07-25
Publication date: 2015-01-29
Also published as: CN104348691A; CN104348691B

Abstract

The present invention relates to the field of communications. Disclosed in an embodiment of the present invention are an optical fiber link scheduling method, device and system, being used to complete centralized and unified jumper connection between nodes on a virtual optical fiber link, and to set a node port to a pre-occupied state, and to switch the node port on the virtual optical fiber link from the pre-occupied state to occupied state if the node port needs to be used, thus improving the speed of providing optical fiber service. The method of the embodiment of the present invention comprises: monitoring in real time the utilization of an optical fiber link between two directly connected nodes on a first optical fiber link; if the utilization is greater than the utilization threshold of the optical fiber link between the corresponding two directly connected nodes, then generating a service alarm; searching a first virtual optical fiber link between a first node and a second node according to the service alarm; and switching the ports on the first virtual optical fiber link corresponding to all nodes on the first virtual optical fiber link from the pre-occupied state to occupied state, so as to allow the service between the first node and the second node to use the first virtual optical fiber link.

Description

The invention relates to a Chinese patent application filed on July 25, 2013 by the Chinese Patent Office, the application number is 201310315468.5, and the invention name is "a fiber link scheduling method, device and system". Priority is hereby incorporated by reference in its entirety. Technical field

The present invention relates to the field of communications, and in particular, to a fiber link scheduling method, device, and system. Background technique

The Fiber Infrastructure Network (FIN) includes an Optical Distribution Network (ODN), an Optical Metro Network (OMN), and an Optical Backbone Network (OBN). Used to implement

FIN networking equipment can use high utilization of fiber links to improve fiber link scheduling flexibility and service delivery speed.

In the prior art, a FIN network link node device, for example, a telecom carrier room optical link node device, and a fiber link scheduling is based on a fiber-optic cable divergence, a hot-splicing mode, also called a divergent fusion mode, by Redundant core resources may be reserved to ensure that the fiber is sufficient. For example, the OMN ring cable network is as shown in Figure 1 or 2. Figure 1 shows the optical distribution frame (ODF) at both ends, which is represented by "0". The middle of the two ODFs is the optical junction box. , respectively, using AF to indicate that the total number of cores of the optical cable in the cable loop link is 288 cores, and the A~F optical junction boxes occupy 288/6=48 core fibers, 0-A, A-0, 0-B, respectively. B-0, OC, CO, OD, DO, 0-E, E-0, 0-F, F-0, direct access to the fiber link by fiber optic cable divergence. As shown in Figure 3, some of the spliced fiber links are replaced by partial jumper fiber links, but there is no better network management system and fiber-end port identification management technology. These jumper-type fiber links are not. Flexible scheduling features.

The traditional fiber-optic service jumps, requiring construction workers to jump to the site, not only is slow, but also costly, including labor costs, fuel costs, etc., and may be used to open one or several fiber links to multiple different sites for fiber jump. Therefore, it is necessary to increase the speed of opening the optical fiber service.

The inventors have found that at least the following problems exist in the prior art: Since the traditional fiber-optic service jumps require the construction personnel to jump to the site, the optical fiber service is opened at a slow speed. Summary of the invention

The embodiments of the present invention provide a method, a device, and a system for scheduling an optical fiber link. The hopping of nodes in a virtual fiber link is unified and the node port is pre-occupied, and the virtual fiber link is used when needed. The internal node port is switched from the pre-occupied state to the occupied state, thereby improving the optical fiber service opening speed.

In order to achieve the above object, the technical solution adopted by the embodiment of the present invention is

In a first aspect, a fiber link scheduling method is provided, including:

Real-time monitoring of fiber link usage between all directly connected nodes on the first fiber link, wherein the first fiber link is a fiber link being used by the service between the first node and the second node ;

Generating a service when the fiber link usage rate between the two directly connected nodes on the first fiber link is greater than the fiber link usage threshold between the two directly connected nodes Searching, according to the service alarm, a first virtual fiber link between the first node and the second node, where the first virtual fiber link is the first node and the second node A fiber link that is reachable but has not been opened for service;

Relocating a port of the first virtual fiber link corresponding to the port of the first virtual fiber link from a pre-occupied state to an occupied state, so that service usage between the first node and the second node is performed The first virtual fiber link.

In a first possible implementation manner, according to the first aspect, the first virtual fiber link is a virtual fiber link with a shortest path between the first node and the second node.

In a second possible implementation manner, in combination with the first aspect or the first possible implementation manner, before the real-time monitoring of the optical fiber link usage rate between all directly connected two nodes on the first optical fiber link The method can also include:

Acquiring the resource information of the fiber link area to be planned, where the resource information includes the node information; setting a link scheduling rule according to the resource information of the fiber link area to be planned, where the link scheduling rule includes the fiber to be planned The number of fiber cores required between any two nodes in the link area and the fiber link usage threshold between any two nodes; All virtual fiber links between any two nodes.

In a third possible implementation manner, in combination with the second possible implementation manner, the virtual fiber link according to the foregoing includes:

Obtaining, according to the resource information and the link scheduling rule, all virtual fiber links between any two nodes in the fiber link area to be planned according to the modified Dijkstra algorithm or the modified fiber routing automatic configuration algorithm road.

In a fourth possible implementation manner, in combination with the third possible implementation manner, the obtaining, according to the resource information and the link scheduling rule, the fiber link to be planned according to the modified Dijkstra algorithm All virtual fiber links between any two nodes in the area, including:

When the number of nodes in the area of the fiber link to be planned is less than 100, all the virtual fiber links between any two nodes in the area of the fiber link to be planned are obtained according to the Dijkstra algorithm;

When the number of nodes in the area of the fiber link to be planned is greater than or equal to 100, the area of the fiber link to be planned is divided into M areas, and the number of nodes in any area is less than 100, for any of the areas. All virtual fiber links between any two nodes in any one of the regions are obtained according to the Dijkstra algorithm, wherein the M is greater than or equal to two.

In a fifth possible implementation manner, in combination with the third possible implementation manner, acquiring, in the fiber link area to be planned, according to the modified fiber routing automatic configuration algorithm according to the resource information and the link scheduling rule All virtual fiber links between any two nodes, including:

When the number of nodes in the area of the fiber link to be planned is less than 100, all the virtual fiber links between any two nodes in the fiber link area to be planned are obtained according to the fiber routing automatic configuration algorithm;

When the number of nodes in the area of the fiber link to be planned is greater than or equal to 100, the area of the fiber link to be planned is divided into N areas, and the number of nodes in any area is less than 100, for any of the areas. Obtaining all virtual fiber links between any two nodes in any one of the areas according to the fiber routing automatic configuration algorithm, where the N is greater than or equal to 2.

In a second aspect, a network management system is provided, where the network management system includes:

a monitoring unit, configured to monitor, in real time, a fiber link usage rate between all the directly connected nodes on the first fiber link, where the first fiber link is a service between the first node and the second node Fiber link in use;

a generating unit, when a fiber link usage rate between any two directly connected nodes on the first fiber link is greater than a fiber link usage threshold between the two directly connected nodes, Used to generate service alarms;

a search unit, configured to search, according to the service alarm, a first virtual fiber link between the first node and the second node, where the first virtual fiber link is the first node and a fiber link that is reachable between the second nodes but does not open a service;

a switching unit, configured to switch, from the pre-occupied state to an occupied state, a port of the first virtual fiber link corresponding to all nodes on the first virtual fiber link, so that the first node and the second node The first virtual fiber link is used between the services.

In a first possible implementation, in combination with the second aspect, the first virtual fiber link is a virtual fiber link with the shortest path between the first node and the second node.

In a second possible implementation manner, in combination with the second aspect or the first possible implementation manner, the network management system further includes:

a first acquiring unit, configured to acquire resource information of a fiber link area to be planned, where the resource information includes node information;

a setting unit, configured to set, according to the resource information of the fiber link area to be planned, a number of fiber cores to be occupied by the link scheduling rule and a fiber link usage threshold between any two nodes;

And a second acquiring unit, configured to acquire, according to the resource information and the link scheduling rule, all virtual fiber links between any two nodes in the to-be-planned fiber link region.

In a third possible implementation, in combination with the second possible implementation,

The second obtaining unit is further configured to: according to the resource information acquired by the first acquiring unit and the link scheduling rule set by the setting unit according to the modified Dijkstra algorithm or modified The fiber routing automatic configuration algorithm acquires all virtual fiber links between any two nodes in the fiber link area to be planned.

In a fourth possible implementation, in combination with a third possible implementation,

The second obtaining unit is further configured to: when the number of nodes in the fiber link area to be planned is smaller than

100, obtaining any two nodes in the fiber link region to be planned according to the Dijkstra algorithm All virtual fiber links in between; when the number of nodes in the fiber link area to be planned is greater than or equal to

100°, the area of the fiber link to be planned is divided into M areas, and the number of nodes in any area is less than 100, and any one of the areas is obtained according to the Dijkstra algorithm for any one of the areas. All virtual fiber links between two nodes, wherein the M is greater than or equal to two.

In a fifth possible implementation, in combination with a third possible implementation,

The second obtaining unit is further configured to: when the number of nodes in the area of the fiber link to be planned is less than 100, obtain an algorithm between the two nodes in the area of the fiber link to be planned according to the fiber routing automatic configuration algorithm When the number of nodes in the area of the fiber link to be planned is greater than or equal to 100, the area of the fiber link to be planned is divided into N areas, and the number of nodes in any area is less than 100. Obtaining, by the fiber routing automatic configuration algorithm, all virtual fiber links between any two nodes in any one of the areas, where the N is greater than or equal to 2.

The embodiments of the present invention provide a method, a device, and a system for scheduling an optical fiber link. The hopping of nodes in a virtual fiber link is unified and the node port is pre-occupied, and the virtual fiber link is used when needed. The internal node port is switched from the pre-occupied state to the occupied state, thereby improving the optical fiber service opening speed, and overcomes the shortcomings in the prior art that the traditional fiber-optic service jumps require the construction personnel to jump to the site to make the optical fiber service open. DRAWINGS

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the description of the prior art will be briefly described below. Obviously, the drawings in the following description are only It is a certain embodiment of the present invention, and other drawings can be obtained from those skilled in the art without any creative work.

FIG. 1 is a logic diagram of an optical metro ring network according to an embodiment of the present invention;

2 is a schematic diagram of physical connection of an optical metro ring network according to an embodiment of the present invention;

FIG. 3 is a schematic diagram of a fiber service jumper according to an embodiment of the present invention; FIG.

4 is a schematic flowchart of a fiber link scheduling method according to an embodiment of the present invention;

FIG. 5 is a schematic flowchart of another method for scheduling an optical fiber link according to an embodiment of the present invention; FIG. 6 is a schematic diagram of a non-compliance with planning intention according to an embodiment of the present invention;

7A is a schematic diagram of scheduling an optical fiber link according to an embodiment of the present invention; FIG. 7B is a schematic diagram of another fiber link scheduling according to an embodiment of the present invention; FIG.

FIG. 8 is a schematic diagram of an apparatus of a network management system according to an embodiment of the present disclosure;

FIG. 9 is a schematic diagram of another apparatus of a network management system according to an embodiment of the present invention. detailed description

BRIEF DESCRIPTION OF THE DRAWINGS The technical solutions in the embodiments of the present invention will be described in detail with reference to the accompanying drawings. All other embodiments obtained by a person of ordinary skill in the art based on the embodiments of the present invention without the creative work are all within the scope of the present invention.

In one aspect, an embodiment of the present invention provides a fiber link scheduling method, which is shown in FIG. 4, and includes:

401: Real-time monitoring of fiber link usage between all directly connected nodes on the first fiber link, where the first fiber link is a fiber link used by the service between the first node and the second node ;

Illustratively, before real-time monitoring of the optical fiber link usage between all directly connected nodes on the first fiber link, the method may further include:

Obtaining the resource information of the fiber link area to be planned, the resource information includes the node information, and setting a link scheduling rule according to the resource information of the fiber link area to be planned, where the link scheduling rule includes the fiber link area to be planned. The number of fiber cores to be occupied between any two nodes and the fiber link usage threshold between any two nodes;

All the virtual fiber links between any two nodes in the fiber link area to be planned are obtained according to the resource information and the link scheduling rule.

Exemplarily, all the virtual fiber links between any two nodes in the fiber link area to be planned are obtained according to the resource information and the link scheduling rule, including:

Obtaining all virtual fiber links between any two nodes in the fiber link area to be planned according to the resource information and the link scheduling rule according to the modified Dijkstra algorithm or the modified fiber routing automatic configuration algorithm.

Illustratively, obtaining, according to the resource information and the link scheduling rule, all the virtual fiber links between any two nodes in the fiber link area to be planned according to the modified Dijkstra algorithm, may include: When the number of nodes in the road area is less than 100, the algorithm is obtained according to the Dijkstra algorithm. All virtual fiber links between any two nodes in the fiber link area to be planned;

When the number of nodes in the fiber link area to be planned is greater than or equal to 100, the fiber link area to be planned is divided into M areas, and the number of nodes in any area is less than 100, and any area is in accordance with Dijkstra. The algorithm acquires all virtual fiber links between any two nodes in any region, where M is greater than or equal to two.

For example, the virtual fiber route auto-configuration algorithm is used to obtain all the virtual fiber links between any two nodes in the fiber link area to be planned according to the resource information and the link scheduling rule, which may include:

When the number of nodes in the fiber link area to be planned is less than 100, all the virtual fiber links between any two nodes in the fiber link area to be planned are obtained according to the fiber routing automatic configuration algorithm.

When the number of nodes in the fiber link area to be planned is greater than or equal to 100, the fiber link area to be planned is divided into N areas, and the number of nodes in any area is less than 100. Get all virtual fiber links between any two nodes in any region, where N is greater than or equal to 2.

402: Generate a service alarm when a fiber link usage rate between any two directly connected nodes on the first fiber link is greater than a fiber link usage threshold between two directly connected nodes;

403. Search, according to the service alarm, a first virtual link between the first node and the second node, where the first virtual link is a fiber that is reachable between the first node and the second node but is not enabled. Link; Illustratively, the first virtual link is a virtual link with the shortest path between the first node and the second node.

404: Switch all the nodes on the first virtual link to the occupied state from the pre-occupied state to the occupied state, so that the service between the first node and the second node uses the first virtual link.

An embodiment of the present invention provides a method for scheduling a fiber link. The node of the virtual fiber link is uniformly set and the node port is pre-occupied. When the node is required to be used, the node port of the virtual fiber link is removed. The pre-occupation switch to the occupied state, thereby improving the opening speed of the optical fiber service, and overcoming the shortcomings in the prior art that the traditional fiber-optic service jumps require the construction personnel to jump to the site, which makes the optical fiber service open faster. Next steps:

501: Obtain resource information of a fiber link area to be planned, where the resource information includes node information. Illustratively, after the planned deployment of the fiber-optic area, the planning and physical deployment of the fiber-optic area is completed. For example, the fiber is deployed. In the planning and design, the technical specifications of each fiber link need to be met, for example, Link node device to device (E2E) optical power attenuation.

Illustratively, the resource information includes the node information, the device information, the optical fiber, and the like related to the area. The embodiment of the present invention takes the resource information of the fiber link area to be planned by the network management system as an example, and is not limited thereto.

Exemplarily, the network management system is essentially a set of application software systems installed on a server for the customer to manage network resources.

For example, the node device information includes core, aggregation, access, and Fast Data Transfer (FDT) attribute rules. The node device attribute rules may be classified according to the importance of the node, or other methods may be used. The division is performed, but the embodiment of the present invention does not limit this.

502: Obtain optical routing information, Geographic Information System (GIS) information, and computer room category information.

For example, the method for the network management system to obtain optical routing information may include:

a) download the optical routing template;

b) Import the optical routing template to the network management system.

The method for obtaining the optical routing information in the network management system in the embodiment of the present invention may be the foregoing method, or may be another method for obtaining the optical routing information, but the embodiment of the present invention does not limit this.

503: setting the proportion of the jumper fiber link to the overall fiber link;

Exemplarily, in the prior art, as shown in FIG. 1 or 2, if all of the fused-type optical fiber links are used, in the extreme case where the formed optical fibers of the first exclusive link are used, the overall optical fiber utilization The rate is: 1/6 = 16.7%. When the fiber links are all fused fiber links, if the fiber utilization is greater than 16.7%, a new fiber cable is needed.

As shown in Figure 3, a part of the spliced fiber link can be replaced by a partial jumper fiber link. For example, there is a 2*12=24-core jumper fiber link in the fiber ring network, and 0- The ABCDEF-0 jumper fiber link can be used to make the node device occupy the jumper fiber link by using the jumper mode when any of the node device spliced fiber links are used up. But because of the lack of better Network management systems and fiber-optic port identification management technologies, these jumper-type fiber links will not have flexible scheduling.

For the above situation, the network management system can effectively manage the intelligent optical distribution network device, port identification, and fiber-hopping, so that the proportion of the jumper-type fiber link to the overall fiber link is greatly improved, thereby improving the available fiber link of the node device. Ratio, further improving overall fiber utilization.

Illustratively, in the embodiment of the present invention, the proportion of the jumper-type fiber link is arbitrarily divided by the network management system according to the requirements of the operator, and is not limited by the technology, and the spliced fiber link can be replaced by the jumper type at the maximum. For a fiber link, the larger the proportion of the jumper fiber link divided into the total fiber link, the higher the overall utilization of the fiber. For example, when dividing 10% of the total fiber into a jumper fiber link, in the extreme case, the overall fiber utilization is: ( 1-10% ) /6+10%=25%; when dividing 25% of the total fiber In the case of a jumper type fiber link, the overall utilization of the fiber is: ( 1-25% ) /6+25%=37.5%; when 50% of the total fiber is a jumper fiber link, In extreme cases, the overall utilization of the fiber is: (1-50%) /6+50%=58.3%; when 70% of the total fiber is a jumper fiber link, in extreme cases, the overall fiber utilization is : ( 1-70% ) /6+70%=75%.

504: Set a link scheduling rule, where the link scheduling rule includes the number of fiber cores required to be occupied between any two nodes in the fiber link region to be planned, and the fiber link usage threshold between any two nodes; Between

Exemplarily, all virtual fiber links between any two nodes are fiber links that are reachable between any two nodes but are not open for service.

For example, obtaining all the virtual fiber links between any two nodes in the fiber link area to be planned according to the resource information and the link scheduling rule may include:

According to the resource information and the link scheduling rule, all the virtual fiber links between any two nodes in the fiber link area to be planned are obtained according to the modified Dijkstra algorithm or the modified fiber routing automatic configuration algorithm.

Exemplarily, the Dijkstra algorithm is a typical shortest path algorithm, which is used to calculate the shortest path from one node to all other nodes. The algorithm extends from the starting point to the outer layer, and iteratively extends to End point. Illustratively, obtaining, according to the resource information and the link scheduling rule, all the virtual fiber links between any two nodes in the fiber link area to be planned according to the modified Dijkstra algorithm, may include: When the number of nodes in the road area is less than 100, all virtual fiber links between any two nodes in the fiber link area to be planned are obtained according to the Dijkstra algorithm;

When the number of nodes in the area of the fiber link to be planned is greater than or equal to 100, the area of the fiber link to be planned is divided into M areas, and the number of nodes in any area is less than 100. The Tracy algorithm acquires all virtual fiber links between any two nodes in any region, where M is greater than or equal to two.

Exemplarily, in the embodiment of the present invention, the fiber routing automatic configuration step between any two core nodes in the fiber link region to be planned is a preferred method, and the first step is to select a direct fiber; the second step is to select a core jumper. Once; the third step, select the core jumper twice or more. The core layer fiber link configuration mainly considers the distance, usually the shortest distance is selected; when selecting all the virtual fiber links of any two nodes, the fiber link usage threshold is also considered.

When the number of nodes in the area of the fiber link to be planned is greater than or equal to 100, the area of the fiber link to be planned is divided into M areas, and the number of nodes in any area is less than 100. The configuration algorithm acquires all virtual fiber links between any two nodes in any region, where M is greater than or equal to 2.

The specific steps of the fiber routing automatic configuration algorithm can be:

1. Data preparation, establishing the coordinates of each node and the direct fiber relationship table between nodes;

a) Introduce a coordinate system to establish relative coordinate information of all nodes in the fiber link region to be planned; when i=j, A _y =0,

When i<j, Α _3⁄4 = the length of the fiber between node i and node j,

When i>j, Α _3⁄4 = the link usage threshold of the direct fiber between node i and node j.

b) According to the coordinates of each node, formulate direct fiber between any two nodes in the fiber link area to be planned The relationship table, as shown in Table 1, is a direct fiber link relationship table between any two nodes in the fiber link area to be planned.

Table 1

2. The fiber routing automatic configuration algorithm is implemented.

a) Select the direct path between any two nodes in the fiber link area to be planned, and output the result; b) If there is no direct path between any two nodes in the fiber link area to be planned, according to the corresponding area in the fiber link to be planned The length of the fiber between any two nodes and the link usage threshold of the fiber select the fiber link that is jumped once, and output the result;

c) If there is no direct path and one jumper fiber link between any two nodes in the fiber link area to be planned, according to the length of the fiber between any two nodes in the fiber link area to be planned and the link of the fiber The usage threshold selects the fiber link that is jumped twice or more and outputs the result.

Exemplarily, when the fiber routing automatic configuration algorithm is implemented in the above-mentioned planned fiber link region, the output result must meet the specification requirements, for example, the E2E optical power attenuation of each link.

506: The administrator determines whether all the virtual fiber links between any two nodes in the fiber link area to be planned meet the planning intention;

Exemplarily, in the embodiment of the present invention, determining whether all the virtual fiber links between any two nodes in the fiber link area to be planned meet the planning intention may include determining whether all the virtual fiber links that are feasible meet the specification requirements. For example, the optical power of each virtual fiber link E2E is attenuated, and it is determined whether all the virtual fiber links meet the number of fiber cores required between any two nodes in the fiber link area to be planned and the fiber between any two nodes. Link usage threshold, can also contain other A method for determining whether all the virtual fiber links between any two nodes meet the planning intention, but the embodiment of the present invention does not limit this.

If all the virtual fiber links between any two nodes in the planned fiber link area meet the planning intention, archive the results in accordance with the planning intent; if all the virtual nodes between the two nodes in the fiber link area are to be planned The fiber link does not meet the planning intent, the input condition can be adjusted, and all the virtual fiber links between any two nodes in the fiber link area to be planned are obtained according to the modified Dijkstra algorithm or the modified fiber routing automatic configuration algorithm. The road, iteratively iterates through the above actions until it meets the planning intent and archives the results that meet the planning intent. FIG. 6 is a schematic diagram of a non-compliance with planning intention according to an embodiment of the present invention. As shown in the figure, when all virtual fiber links between any two nodes in the fiber link area to be planned do not meet the planning intention Adjust the link scheduling rules, for example, the number of core to aggregated fiber cores, the number of cores converged to the access, the number of core to core fiber cores, the number of cores converged to the aggregation, and the number of cores connected to the FDT And the minimum number of jumps, and re-acquisition of all the virtual fiber links between any two nodes in the fiber link area to be planned according to the modified Dijkstra algorithm or the modified fiber routing automatic configuration algorithm.

507: The network management system generates a port jump pre-configuration table according to all virtual fiber links between any two nodes in the fiber link area to be planned.

508: The network management system generates a construction work order according to the jumper pre-configuration table;

Exemplarily, the construction work order may include a work order number, a service number, a work order name, a service description, an optical path type, a starting device type, a starting device port, a terminating device name, and a terminating device port, and may also include Other information of the content is not limited in this embodiment of the present invention.

509: The operator performs centralized and unified jump construction according to the construction guidance tool (iField);

Exemplarily, the operator performing the engineering jumper construction may include the following steps:

a) The operator obtains the work order to be constructed;

b) The operator prompts the fiber port information to be inserted according to the construction guidance tool (iField), and the port of the device to be inserted into the fiber is always on. If the constructor inserts the wrong port, the prompt port prompts the correct port information to be inserted, and should The correct port inserted will prompt the flashing light prompt; c) The operator inserts the fiber to be inserted into the correct port of the fiber device to be inserted. If the operator inserts the port successfully, the port indicator will go out, and the fiber device will be inserted to display the next one. of The port to be constructed, with voice prompts;

d) Insert the jumper in the electronic identity (elD) read/write tool into the next construction port on the same side of the display, and repeat the c-d step until the fiber device to be constructed no longer displays the port to be constructed;

e) Construction is completed.

510: When the service is started, the network management system formulates the first node and the second node of the first fiber link, and uses the first node and the second node and the first fiber link used by the service between the first node and the second node. All the ports corresponding to the first fiber link are switched from the pre-occupied state to the occupied state, so that the service uses the first fiber link;

Exemplarily, the first node and the second node are respectively a starting node and a terminating node of the first fiber link used by the service, and the node state may include three states, an occupied state, a pre-occupied state, and an idle state.

511: Real-time monitoring of fiber link usage between all directly connected nodes on the first fiber link;

512: Generate a service alarm when the fiber link usage between the two directly connected nodes on the first fiber link is greater than the fiber link usage threshold between the two directly connected nodes.

513: Search, according to the service alarm, a first virtual fiber link between the first node and the second node, where the first virtual fiber link is reachable between the first node and the second node, but the service is not activated. Fiber link

Illustratively, the first virtual fiber link is a virtual fiber link with the shortest path between the first node and the second node.

514: Switch all the nodes on the first virtual fiber link to the occupied state from the pre-occupied state to the occupied state, so that the service between the first node and the second node uses the first virtual fiber link. .

Illustratively, FIG. 7A and FIG. 7B are schematic diagrams of scheduling an optical fiber link according to an embodiment of the present invention. As shown in FIG. 7A, between the node A and the node B in the fiber link region to be planned, and the optical fiber between A and B. The link usage rate is greater than the link usage threshold between A and B. The network management system generates a service alarm between node A and node B, and searches for a virtual fiber link between node A and node B, as shown in Figure 7B. The virtual fiber link ACDB is the search result, and the nodes A, B, C, and D are paired. The port of the virtual fiber link of the ACDB is switched from the pre-occupied state to the occupied state, and the service between the node A and the node B is adjusted from the AB fiber link to the ACDB virtual fiber link.

An embodiment of the present invention provides a method for scheduling a fiber link. The node of the virtual fiber link is uniformly set and the node port is pre-occupied. When the node is required to be used, the node port of the virtual fiber link is removed. The pre-occupation switch to the occupied state, thereby improving the opening speed of the optical fiber service, and overcoming the shortcomings in the prior art that the traditional fiber-optic service jumps require the construction personnel to jump to the site, which makes the optical fiber service open faster.

On the other hand, an embodiment of the present invention provides a network management system 80. Illustratively, the network management system 80 is essentially a set of application software systems installed on a server for the client to manage network resources.

See Figure 8 or 9, including:

The monitoring unit 801 is configured to monitor, in real time, the fiber link usage between all the directly connected nodes on the first fiber link, where the first fiber link is used between the first node and the second node. Fiber link

The generating unit 802 is configured to generate a service alarm when the fiber link usage rate between the two directly connected nodes on the first fiber link is greater than the fiber link usage threshold between the two directly connected nodes. ;

The searching unit 803 is configured to search, according to the service alarm, a first virtual fiber link between the first node and the second node, where the first virtual fiber link is reachable between the first node and the second node. , but the fiber link of the service has not been opened;

The switching unit 804 is configured to switch, from the pre-occupied state to the occupied state, the ports of the first virtual fiber link corresponding to all the nodes on the first virtual fiber link, so that the service between the first node and the second node is used first. Virtual fiber link.

Exemplarily, the network management system 80 may further include:

The first obtaining unit 805 is configured to obtain resource information of the fiber link area to be planned, where the resource information includes node information.

The setting unit 806 is configured to set a link scheduling rule according to resource information of the fiber link area to be planned Then, the link scheduling rule includes the number of fiber cores required to be occupied between any two nodes in the fiber link region to be planned, and the fiber link usage threshold between any two nodes;

The second obtaining unit 807 is configured to obtain, according to the resource information and the link scheduling rule, all the virtual fiber links between any two nodes in the fiber link area to be planned.

Exemplarily, the second obtaining unit 807 is further configured to: follow the corrected Dijkstra algorithm or the modified fiber routing according to the resource information acquired by the first obtaining unit 805 and the link scheduling rule set by the setting unit 806. The automatic configuration algorithm obtains all virtual fiber links between any two nodes in the fiber link area to be planned.

Exemplarily, the second obtaining unit 807 is further configured to: when the number of nodes in the fiber link area to be planned is less than 100, obtain any two nodes in the fiber link area to be planned according to the Dijkstra algorithm All the virtual fiber links; when the number of nodes in the fiber link area to be planned is greater than or equal to 100, the fiber link area to be planned is divided into two areas, and the number of nodes in any area is less than 100, for any The area obtains all virtual fiber links between any two nodes in any area according to the Dijkstra algorithm, where Μ is greater than or equal to 2;

When the number of nodes in the fiber link area to be planned is less than 100, all the virtual fiber links between any two nodes in the fiber link area to be planned are obtained according to the fiber routing automatic configuration algorithm; When the number of nodes is greater than or equal to 100, the area of the fiber link to be planned is divided into two areas, and the number of nodes in any area is less than 100. Any two areas in any area are obtained according to the fiber routing automatic configuration algorithm. All virtual fiber links between nodes, where Ν is greater than or equal to 2.

The embodiment of the present invention provides a network management system 80, which completes the jumper of the nodes in the virtual fiber link and sets the node port to the pre-occupied state. When needed, the node port in the virtual fiber link is pre-occupied. Switching to the occupied state, thereby improving the opening speed of the optical fiber service, overcomes the shortcomings of the prior art that the traditional fiber-optic service jumps require the construction personnel to jump to the field, which makes the optical fiber service open faster.

A person skilled in the art can understand that all or part of the steps of implementing the above method embodiments may be completed by using hardware related to program instructions, and the foregoing program may be stored in a computer readable storage medium, and the program is executed when executed. The foregoing steps include the steps of the foregoing method embodiments; and the foregoing storage medium includes: a medium that can store program codes, such as a ROM, a RAM, a magnetic disk, or an optical disk.

The above description is only a specific embodiment of the present invention, but the scope of protection of the present invention is not limited to Therefore, any person skilled in the art can easily conceive changes or substitutions within the scope of the present invention. Therefore, the scope of the invention should be determined by the scope of the appended claims.

Claims

claims

1. An optical fiber link scheduling method, characterized by including:

Real-time monitoring of fiber link usage between all two directly connected nodes on the first fiber link, wherein the first fiber link is the fiber link currently used by services between the first node and the second node ;

When the fiber link usage rate between any of the two directly connected nodes on the first fiber link is greater than the corresponding fiber link usage threshold between the two directly connected nodes, a service report is generated. Search for a first virtual optical fiber link between the first node and the second node according to the service alarm, wherein the first virtual optical fiber link is the first node and the second node The optical fiber link is reachable but has no service;

Switch the ports of all nodes on the first virtual optical fiber link corresponding to the first virtual optical fiber link from the pre-occupied state to the occupied state, so that the service usage between the first node and the second node The first virtual fiber link.

2. The optical fiber link scheduling method according to claim 1, wherein the first virtual optical fiber link is the virtual optical fiber link with the shortest path between the first node and the second node.

3. The optical fiber link scheduling method according to claim 1 or 2, characterized in that, before the real-time monitoring of the optical fiber link utilization rate between all two directly connected nodes on the first optical fiber link, the The above methods also include:

Obtain resource information of the optical fiber link area to be planned, the resource information includes node information; Set link scheduling rules according to the resource information of the optical fiber link area to be planned, the link scheduling rules include the optical fiber to be planned The number of fiber cores that need to be occupied between any two nodes in the link area and the fiber link usage threshold between any two nodes; all virtual fiber links between any two nodes.

4. The optical fiber link scheduling method according to claim 3, characterized in that: all virtual optical fiber links between said include:

According to the resource information and the link scheduling rules, the modified Dijkstra algorithm or the modified optical fiber routing automatic configuration algorithm is used to obtain the communication between any two nodes in the fiber link area to be planned. All virtual fiber links.

5. The optical fiber link scheduling method according to claim 4, characterized in that, the optical fiber link to be planned is obtained according to the modified Dijkstra algorithm according to the resource information and the link scheduling rule. All virtual fiber links between any two nodes in the area, including:

When the number of nodes in the optical fiber link area to be planned is less than 100, all virtual optical fiber links between any two nodes in the optical fiber link area to be planned are obtained according to Dijkstra's algorithm;

When the number of nodes in the optical fiber link area to be planned is greater than or equal to 100, the optical fiber link area to be planned is divided into M areas, and the number of nodes in any area is less than 100. For any area All virtual optical fiber links between any two nodes in any area are obtained according to Dijkstra's algorithm, where M is greater than or equal to 2.

6. The optical fiber link scheduling method according to claim 4, characterized in that, according to the resource information and the link scheduling rule, the optical fiber link in the to-be-planned optical fiber link area is obtained according to the modified optical fiber route automatic configuration algorithm. All virtual fiber links between any two nodes, including:

When the number of nodes in the optical fiber link area to be planned is less than 100, all virtual optical fiber links between any two nodes in the optical fiber link area to be planned are obtained according to the optical fiber routing automatic configuration algorithm;

When the number of nodes in the optical fiber link area to be planned is greater than or equal to 100, the optical fiber link area to be planned is divided into N areas, and the number of nodes in any area is less than 100. For any area All virtual optical fiber links between any two nodes in any area are obtained according to the optical fiber routing automatic configuration algorithm, wherein the N is greater than or equal to 2.

7. A network management system, characterized in that the network management system includes:

A monitoring unit configured to monitor in real time the fiber link utilization rate between all two directly connected nodes on the first fiber link, where the first fiber link is where the business between the first node and the second node is ongoing. Fiber optic link used;

Generating unit, when the fiber link usage rate between any of the two directly connected nodes on the first fiber link is greater than the corresponding fiber link usage threshold between the two directly connected nodes, Used to generate business alarms;

A search unit configured to search for a first virtual optical fiber link between the first node and the second node according to the service alarm, wherein the first virtual optical fiber link is the first node and the second node. The second nodes are reachable but have no optical fiber links open for business;

a switching unit, configured to connect all nodes on the first virtual optical fiber link to the first virtual The port of the optical fiber link switches from the pre-occupied state to the occupied state, so that the service between the first node and the second node uses the first virtual optical fiber link.

8. The network management system according to claim 7, wherein the first virtual optical fiber link is the virtual optical fiber link with the shortest path between the first node and the second node.

9. The network management system according to claim 7 or 8, characterized in that the network management system further includes:

The first acquisition unit is used to acquire resource information of the optical fiber link area to be planned, where the resource information includes node information;

A setting unit, configured to set the number of optical fiber cores that the link scheduling rule needs to occupy and the optical fiber link usage threshold between any two nodes according to the resource information of the optical fiber link area to be planned;

The second acquisition unit is configured to acquire all virtual optical fiber links between any two nodes in the optical fiber link area to be planned according to the resource information and the link scheduling rule.

10. The network management system according to claim 9, characterized in that,

The second acquisition unit is also configured to: according to the resource information acquired by the first acquisition unit and the link scheduling rule set by the setting unit, according to the modified Dijkstra algorithm or the modified The optical fiber route automatic configuration algorithm obtains all virtual optical fiber links between any two nodes in the optical fiber link area to be planned.

11. The network management system according to claim 10, characterized in that,

The second acquisition unit is also used to: when the number of nodes in the optical fiber link area to be planned is less than 100, obtain the distance between any two nodes in the optical fiber link area to be planned according to Dijkstra's algorithm all virtual optical fiber links; when the number of nodes in the optical fiber link area to be planned is greater than or equal to

100, divide the fiber link area to be planned into M areas, the number of nodes in any area is less than 100, and obtain any node in any area according to the Dijkstra algorithm. All virtual fiber links between two nodes, where M is greater than or equal to 2.

12. The network management system according to claim 10, characterized in that,

The second acquisition unit is also configured to: when the number of nodes in the optical fiber link area to be planned is less than 100, obtain the information between any two nodes in the optical fiber link area to be planned according to the optical fiber routing automatic configuration algorithm. All virtual optical fiber links; When the number of nodes in the optical fiber link area to be planned is greater than or equal to 100, the optical fiber link area to be planned is divided into N areas, and the number of nodes in any area is less than 100, According to the optical fiber routing automatic configuration algorithm for any of the areas, the information in the area is obtained. All virtual optical fiber links between any two nodes, where N is greater than or equal to 2.