CN113453260B - Method for realizing random selection and guarantee of 5G transmission sub-slices based on dynamic scheduling algorithm - Google Patents
Method for realizing random selection and guarantee of 5G transmission sub-slices based on dynamic scheduling algorithm Download PDFInfo
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Abstract
The invention discloses a method for realizing 5G transmission sub-slice random selection and guarantee based on a dynamic scheduling algorithm, which comprises the following steps: periodically collecting data including but not limited to network elements, links, ports, tunnels, segmented routing tunnels, network slices and network element alarms in a slice packet network; carrying out data association on the acquired network element, link and port data, matching all routes connected among the network elements, automatically generating a whole network topological graph of the sliced packet network, and simultaneously calculating logic configuration information on the network elements, the ports and the links according to the topological graph; before the service is opened, verifying whether the service can be correctly issued in the current network through a simulation test of a configuration instruction; and outputting the test report of the activation of the simulation service. Has the advantages that: the simulation test of the instruction can be carried out for the 5G slice private network service, and the high-quality 5G slice private network service is provided for the client.
Description
Technical Field
The invention relates to the field of 5G slice service simulation, in particular to a method for realizing 5G transmission sub-slice random selection and guarantee based on a dynamic scheduling algorithm.
Background
With the continuous landing of 5G and cloud applications, multiple services are fused with each other. A cloud + network integrated infrastructure with cloud-on-network and network-on-cloud is being constructed. The corresponding organization and the distribution of the whole service are also advanced to automation and intellectualization along with service fusion. Therefore, a super controller needs to be built to realize the automatic opening of the 5G service.
The super controller cooperative control component carries out the authority-sharing domain-sharing authorization on internal and external users according to the belonged regions and resource conditions, and is in butt joint with each domain controller of the data network through restconf (a protocol based on HTTP), so that the whole network resources are managed, and 5G configuration issuing, service opening and the like are controlled. The super controller is positioned at a control connection layer of the network to complete the configuration planning of upper-layer services and the unified control capability of lower-layer network management. The northbound and arrangement center and the transmission workbench are connected to be used as a network operation source to ensure the accuracy of data; and the quality center and the fault center complete the optimization and adjustment of the network, and the south docking carries out the unified control of the network by a plurality of factory area controllers.
With the rapid development of the 5G + industrial internet, telecom operators carry out large-scale hardware construction on 5G slice private network services, and also carry out standard definition and construction on software systems matched with the networks, thereby realizing the automatic opening of the 5G slice private network services. However, when the system is used for opening the actual service, it is found that instruction execution fails due to some configuration parameter errors in many cases, and the construction network element only returns an instruction error and does not indicate where the instruction is wrong, so that the configuration parameter and the actual network management parameter need to be compared manually, and thus, the service is long in time consumption and high in technical requirement of personnel.
The main reasons for the above problems are as follows:
dynamic data, continuous updating: the work order entry information of the 5G slice service opening is distributed through field investigation or a resource system, the entry information has certain hysteresis, and the originally distributed entry information can be occupied, so that the instruction issuing is unsuccessful;
logical resources are not counted: in the 5G slice service provisioning, some logic parameters [ for example: bandwidth parameters CIR (agreed data rate, which refers to data rate in normal state), PIR (peak rate, maximum rate allowed to be transmitted), etc.) of the tunnels, when a plurality of tunnels are configured between the links, and the bandwidth parameters on the tunnels exceed the bandwidth of the physical link, the instruction issuing is not successful;
the parameter error is difficult to locate: when the 5G slice service is abnormally opened, the network management system only feeds back an error prompt and does not explain where the specific error is, and the configuration parameters need to be compared and checked manually.
An effective solution to the problems in the related art has not been proposed yet.
Disclosure of Invention
Aiming at the problems in the related art, the invention provides a method for realizing 5G transmission sub-slice random selection and guarantee based on a dynamic scheduling algorithm, so as to overcome the technical problems in the prior related art.
Therefore, the invention adopts the following specific technical scheme:
the method for realizing the random selection and guarantee of the 5G transmission sub-slice based on the dynamic scheduling algorithm comprises the following steps:
s1, periodically collecting data including but not limited to network elements, links, ports, tunnels, segmented routing tunnels, network slices and network element alarms in the sliced packet network;
s2, performing data association on the collected network element, link and port data, matching all routes connected with each other among the network elements, automatically generating a whole network topological graph of the sliced packet network, and calculating logic configuration information on the network elements, the ports and the links according to the topological graph;
s3, verifying whether the service can be correctly issued in the current network through the simulation test of the configuration instruction before the service is opened;
and S4, outputting the test report of the simulation service opening.
Further, the step of matching all routes interconnected between network elements in S2 further includes the following steps:
and positioning the port information according to the original destination node of the tunnel, and positioning the network element information according to the port information.
Further, in S2, logic configuration information on the network element, the port, and the link is calculated, including but not limited to calculating committed data rate information of a segmented routing tunnel of the 5G slice service, summarizing the ratio of committed data rate to actual bandwidth that has been currently configured, and calculating whether bandwidth usage of the entire link will be affected after service configuration.
Further, the simulation test in S3 includes, but is not limited to, synchronizing the entry information, obtaining the implementation network element, generating the configuration instruction and associating the configuration parameter, issuing the instruction simulation, verifying the configuration parameter and the resource, and outputting the test result;
in the 5G service activation process, the simulation test is a module of the super controller and is positioned in a starting link, and the configuration instruction issuing of the simulation service scene is realized.
Further, the step S3, before the service is opened, of verifying whether the service can be correctly delivered in the current network through a simulation test of the configuration instruction, further includes the steps of:
s31, the simulation test module is butted with the network management of the slicing and grouping network, network resource data and logic resource data are periodically collected, and a whole network topological graph of the slicing and grouping network is automatically generated;
s32, after receiving a 5G slice service opening order of the arranging system, the super controller analyzes the work order and sends first information to a simulation test;
s33, synchronizing the work order entry information through simulation test, matching the network elements needing to be configured according to the entry information, and generating corresponding instructions according to the network elements;
s34, issuing the instruction to a network resource library in the system through a simulation instruction issuing module, calculating according to the entry information of the work order and the current network resource of the resource library, and simultaneously checking whether the newly added service can be successfully opened in the current network resource;
and S35, outputting the simulation test result of the service opening.
Further, the network resource data in S31 includes, but is not limited to, network element data, port data, and link data.
Further, the first information in S32 includes, but is not limited to, a product type, a product action, and configuration parameters.
Further, the entry information of the work order in S34 includes a network element, an instruction, and a configuration parameter.
Further, when the test report of activating the simulation service is output in S4, if the simulation test is unsuccessful, an error link of the test is labeled, and an engineer is assisted to repair the problem.
Further, the service provisioning in S3 includes creating a service, adjusting a bandwidth, adjusting a protection mode, suspending and resuming a service, and deleting a service;
the creating service comprises a 5G slice service, a metropolitan area packet transport network service and a miniaturized packet transport network service.
The invention has the beneficial effects that:
(1) the invention provides simulation calculation of 5G slice service opening, improves the opening efficiency, provides a configuration parameter calculation module by simulation test, and can automatically combine required network resources and available resources in configuration data, thereby simulating the result generated when the configuration is carried out in the current network, and further verifying whether the network resources support the service opening in advance.
(2) The invention can configure wrong problem positioning, and the simulation test can carry out detailed recording on the interactive record and the verification result of the configuration simulation execution, so that when the simulation test is unsuccessful, the report can mark which link is wrong in the test, and assist engineers in repairing the problem, thereby providing the rapid opening of the 5G slice private network.
(3) The invention can automatically find out the optimization of network capacity, finds out the shortage of network resources and finds out problems in advance through the simulation calculation of service activation, and provides important data for engineers to upgrade and construct network resources.
(4) The invention provides automatic calculation and fault discovery of the system, reduces maintenance personnel and accelerates processing efficiency.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required in the embodiments will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a flowchart of a method for implementing 5G transmission sub-slice on-demand and guarantee based on a dynamic scheduling algorithm according to an embodiment of the present invention;
FIG. 2 is a flow chart of a simulation test of a method for implementing 5G transmission sub-slice on-demand and guarantee based on a dynamic scheduling algorithm according to an embodiment of the present invention;
FIG. 3 is a functional architecture diagram of a method for implementing 5G transmission sub-slice on-demand and safeguard based on a dynamic scheduling algorithm according to an embodiment of the present invention;
fig. 4 is a schematic diagram of CIR bandwidth occupation in a tunnel according to a method for implementing 5G transmission sub-slice on-demand selection and guarantee based on a dynamic scheduling algorithm in an embodiment of the present invention;
fig. 5 is an application architecture diagram of a simulation test module for implementing a method for on-demand and provisioning of 5G transmission sub-slices based on a dynamic scheduling algorithm according to an embodiment of the present invention.
Detailed Description
For further explanation of the various embodiments, the drawings which form a part of the disclosure and which are incorporated in and constitute a part of this specification, illustrate embodiments and, together with the description, serve to explain the principles of operation of the embodiments, and to enable others of ordinary skill in the art to understand the various embodiments and advantages of the invention, and, by reference to these figures, reference is made to the accompanying drawings, which are not to scale and wherein like reference numerals generally refer to like elements.
According to the embodiment of the invention, a method for realizing the random selection and guarantee of the 5G transmission sub-slice based on a dynamic scheduling algorithm is provided, the simulation opening test of the 5G slice service is realized, and the network resource unsatisfied and the network configuration abnormal are found in advance, so that the rapid opening of the service is realized, and the high-quality 5G slice private network service is provided for customers.
The invention establishes the resource data of the SPN (sliced packet network), configures the parameter calculation rule, and calculates the simulation execution condition of the open service under the 5G network by the instruction simulation algorithm, thereby realizing the advance discovery of network resource unsatisfied and network configuration abnormal.
The operation is simple: providing a simulation test interface, automatically performing simulation test by only using a source address, a destination address, QoS (Quality of Service) and the like, and verifying whether a network can be opened and whether network abnormity can be caused after the network is opened;
the execution is rapid: carrying out simulation test in the system to realize second-level operation;
the result is accurate: providing a configuration parameter rule calculation module which can automatically combine required network resources and available resources in configuration data so as to simulate the result generated when the configuration is carried out in the current network;
and (3) expandable: and under the condition that basic data is continuously updated, the simulation configuration test of a new service can be supported.
The invention establishes the SPN network relation topology and realizes the automatic calculation of whether the 5G slice private network service is successfully opened or not through simulation test.
Referring to the drawings and the detailed description, the invention will be further described, as shown in fig. 1 to 5, in an embodiment of the invention, a method for implementing 5G transmission sub-slice on-demand selection and guarantee based on a dynamic scheduling algorithm includes the following steps:
s1, (network data synchronization) needs to periodically collect basic data of the SPN network, including information such as network element, link, port, tunnel, SR (segment routing) tunnel, network slice, and network element alarm.
S2, performing data association on the collected network elements, links and port data (topology data association calculation), matching all routes connected among the network elements, namely positioning the port information according to the original node of the tunnel, and then positioning the network element information according to the port information, thereby automatically generating an SPN full-network topological graph;
meanwhile, according to the topology map information, calculating logic configuration information on the network element, the port and the link, for example: and calculating SR tunnel CIR (committed data rate) information of the 5G slice service, summarizing the ratio of the currently configured CIR to the actual bandwidth, and calculating whether the bandwidth use of the whole link is influenced after service configuration.
S3, the simulation test (simulation test) is to simulate a real service provisioning process, and verify whether the service can be correctly issued in the existing network through the simulation test of the configuration instruction before provisioning the service. The simulation test mainly comprises the following steps: synchronizing the access information, acquiring the implementation network element, generating a configuration instruction, associating the configuration parameter, simulating and issuing the instruction, checking the configuration parameter and the resource, and outputting a test result.
In a 5G service activation process, simulation test is a module of a super controller and is positioned in a starting link to realize configuration instruction issuing of a simulation service scene.
The whole process is as follows:
1) the simulation test module is in butt joint with the SPN network manager, and network resource data and logic resource data are regularly acquired every day;
2) after the system collects data, a network topological graph of a full-network SPN is automatically generated;
3) after receiving a 5G slice service opening order of the arranging system, the super controller can analyze a work order and send information such as product types, product actions, configuration parameters and the like to the simulation test module;
4) the simulation test module synchronizes the work order entry information, then matches the network elements needing to be configured according to the entry information, and generates corresponding instructions according to the network elements;
5) the simulation instruction issuing module issues the instruction to a network resource library in the system, calculates according to the access information (network element, instruction and configuration parameter information) of the work order and the current network resource of the resource library, and checks whether the newly added service can be successfully opened in the current network resource.
6) And outputting a simulation test result of service fulfillment.
Collecting network resource data in the SPN network, for example: network element data, port data, link data, etc.
And generating a topological graph among the SPN network elements of the whole network according to the attribution and the incidence relation in the network resource data.
S4, in the simulation test, the simulation execution of the network element, the instruction and the configuration parameter under the service scene is realized, and a test report of activating the simulation service can be output. Because the simulation test is carried out in the system, the interaction record and the verification result in the simulation execution can be recorded in detail, and therefore when the simulation test is unsuccessful, the report can mark that the test is caused by link errors, and assists engineers in repairing problems, so that the 5G slice private network is quickly opened.
And (3) supporting service fulfillment:
creating a service:
and the method supports the opening of the end-to-end service through an interface or an interface mode. And issuing an intra-domain configuration request to each domain OMC/DC according to the service opening request. And returning a service opening result (success or failure), and returning a failure reason when the service is failed to open. Support metropolitan area PTN/SPN (packet transport network/sliced packet network) traffic and miniaturized PTN traffic creation.
1)5G slicing service
And the OMC/DC related to the private line service is determined based on the service source and destination network element and the existing topology. And disassembling the routing request information, and sending the routing request information to an OMC/DC (operation maintenance center/domain controller) of each domain to perform single-domain routing request. And after the transmission operation and maintenance workbench receives the single-domain routing result, performing end-to-end cross-domain service calculation.
And supporting service types: l3VPN (three-layer virtual private network), MTN channel (metropolitan area transport network channel), hard slice service.
Supporting a protection mode: 1: 1. 1+ 1.
Cross-domain docking mode: NNI (interface within transport network or between different transport networks), UNI (interface between network and client).
2) Metropolitan area PTN service
And the OMC/DC related to the private line service is determined based on the service source and destination network element and the existing topology. And disassembling the routing request information, and sending the routing request information to the OMC/DC of each domain to perform single-domain routing request. And after the transmission operation and maintenance workbench receives the single-domain routing result, performing end-to-end cross-domain service calculation.
And supporting service types: E-LINE (point-to-point service, which means that the client has two UNI access points in a bi-directional interworking relationship with each other), E-LAN (transparent ethernet transport service, mainly positioned to provide a multipoint-to-multipoint two-layer VPN service).
Supporting a protection mode: 1: 1. 1+ 1.
Cross-domain docking mode: NNI, UNI.
3) Miniaturized PTN service creation
And supporting an access mode: direct access to metropolitan PTN networks, ring access to metropolitan PTN networks through HUBs (multiport repeaters).
Supporting a protection mode: unprotected, LSP (layered service provider) 1:1, LSP1+ 1.
Cross-domain docking mode: OVERLAY (a model of virtualization technology overlaid on network architecture), UNI.
And (3) bandwidth adjustment:
and the method supports the increase and reduction of the opened service bandwidth through an interface or an interface mode. And respectively adjusting the bandwidths of the tunnel, the pseudo wire, the input sub-interface and the output sub-interface according to different types of equipment of different manufacturers. And the method supports returning of a service bandwidth adjusting result (success or failure), and adjusting failure and returning of a failure reason.
And supporting service types: l2VPN (two-layer virtual network), L3VPN, MTN channel, hard-sliced service (MTN channel-based L2VPN, L3VPN service).
And (3) protection mode adjustment:
and the protection attribute of the opened service is adjusted in an interface or interface mode.
Support for protection type: and protecting an L3VPN channel and an MTN channel.
Protection attribute adjustment should be able to switch between any protection/recovery type supported by the transport operation and maintenance workbench. In the process of switching the protection attribute, the service is ensured not to be influenced and not to be interrupted.
And returning or displaying the service protection attribute adjustment result (success or failure) on an interface in support, and returning the failure reason after the failure is adjusted.
Service suspension and resumption:
and the method supports the suspension of the service and the recovery of the service through an interface or an interface. The workbench realizes the activation and deactivation of the service.
Return the status of the operation (success or failure) and the failure of the operation returns the reason for the failure.
Deleting the service:
and the service is deleted in an interface or interface mode, and the resources occupied by the service are released.
The service deletion request should include the circuit identifier to be deleted.
The status of the delete operation is returned (success or failure), and the delete failure returns the reason for the failure.
And supporting service types: l2VPN, L3VPN, MTN channel, hard-sliced traffic (MTN channel based L2VPN, L3VPN traffic).
And (4) functional architecture:
in order to support the simulation test of the service instruction, the simulation test is divided into five functional modules of a management portal, resource management, simulation test and system management.
The functional architecture diagram is shown in fig. 3:
and (3) managing a portal: the simulation test management interface can create simulation tests, parameter configuration and check execution reports of different scenes;
resource management: the system is in butt joint with an SPN network management system, regularly acquires network resource data and logic resource data of each SPN manufacturer, and automatically generates a network topology;
simulation test: the method can simulate a real service opening process, decompose an opening task, analyze an implementation network element, generate a configuration instruction, associate a configuration parameter, verify the configuration parameter with physical resources and logical resources of the network element, and output a simulation test report;
and (3) system management: and realizing system menu and account authority management.
Interpretation of technical terms:
in summary, with the technical solution of the present invention, a simulation test of an instruction can be performed for the 5G slice private network service, and correctness of the physical device information and the logic configuration data can be verified. The technical effects are as follows: the invention provides simulation calculation of 5G slice service opening, improves the opening efficiency, provides a configuration parameter calculation module by simulation test, and can automatically combine required network resources and available resources in configuration data, thereby simulating the result generated when the configuration is carried out in the current network, and further verifying whether the network resources support the service opening in advance. The invention can configure wrong problem location, and the simulation test can carry out detailed record on the interaction record and the verification result of configuration simulation execution, so that when the simulation test is unsuccessful, the report can mark which link of the test is caused by error, and assist engineers in repairing the problem, thereby providing the rapid opening of the 5G slice private network. The invention can automatically find out the optimization of network capacity, finds out the shortage of network resources and finds out problems in advance through the simulation calculation of service activation, and provides important data for engineers to upgrade and construct network resources. The invention provides automatic calculation and fault discovery of the system, reduces maintenance personnel and accelerates processing efficiency.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.
Claims (7)
1. The method for realizing the random selection and guarantee of the 5G transmission sub-slices based on the dynamic scheduling algorithm is characterized by comprising the following steps:
s1, periodically collecting data including but not limited to network elements, links, ports, tunnels, segmented routing tunnels, network slices and network element alarms in the sliced packet network;
s2, performing data association on the collected network element, link and port data, matching all routes connected with each other among the network elements, automatically generating a whole network topological graph of the sliced packet network, and calculating logic configuration information on the network elements, the ports and the links according to the topological graph;
s3, verifying whether the service can be correctly issued in the current network through the simulation test of the configuration instruction before the service is opened;
s4, outputting a test report of the simulation service opening;
the simulation test in S3 includes, but is not limited to, synchronizing the entry information, obtaining the implementation network element, generating a configuration instruction and associating parameters, issuing an instruction simulation, verifying parameters and resources, and outputting a test result;
in the 5G service activation process, a simulation test is a module of a super controller and is positioned in a starting link, and the configuration instruction issuing of a simulation service scene is realized;
in S3, verifying whether the service can be correctly delivered in the existing network through a simulation test of the configuration instruction before the service is opened further includes the following steps:
s31, the simulation test module is butted with the network management of the slicing and grouping network, network resource data and logic resource data are periodically collected, and a whole network topological graph of the slicing and grouping network is automatically generated;
s32, after receiving a 5G slice service opening order of the arranging system, the super controller analyzes the work order and sends first information to a simulation test;
s33, synchronizing the work order entry information through simulation test, matching the network elements needing to be configured according to the entry information, and generating corresponding instructions according to the network elements;
s34, issuing the instruction to a network resource library in the system through a simulation instruction issuing module, calculating according to the entry information of the work order and the current network resource of the resource library, and simultaneously checking whether the newly added service can be successfully opened in the current network resource;
s35, outputting a simulation test result of service opening;
when the test report of activating the simulation service is output in S4, if the simulation test is unsuccessful, an error link of the test is labeled, and an engineer is assisted to repair the problem.
2. The method for implementing 5G transmission sub-slice on-demand and provisioning based on the dynamic scheduling algorithm of claim 1, wherein the step of matching all routes interconnected between network elements in S2 further comprises the steps of:
and positioning the port information according to the original destination node of the tunnel, and positioning the network element information according to the port information.
3. The method according to claim 1, wherein in S2, the logic configuration information on the network element, the port, and the link is calculated, including but not limited to calculating committed data rate information of a segmented routing tunnel of a 5G slice service, summarizing a ratio of committed data rate to actual bandwidth that has been currently configured, and calculating whether the service configuration will affect bandwidth usage of the entire link.
4. The method for implementing 5G transmission sub-slice on-demand and provisioning based on the dynamic scheduling algorithm as claimed in claim 1, wherein the network resource data in S31 includes but is not limited to network element data, port data and link data.
5. The method for implementing 5G transmission sub-slice on-demand and guarantee based on dynamic scheduling algorithm as claimed in claim 1, wherein the first information in S32 includes but is not limited to product type, product action and configuration parameters.
6. The method for implementing 5G transmission sub-slice on-demand and guarantee based on the dynamic scheduling algorithm as claimed in claim 1, wherein the access information of the work order in S34 includes network elements, instructions and configuration parameters.
7. The method according to claim 1, wherein the service provisioning in S3 includes creating a service, adjusting bandwidth, adjusting protection mode, suspending and resuming a service, and deleting a service;
the creating service comprises a 5G slice service, a metropolitan area packet transport network service and a miniaturized packet transport network service.
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