WO2020083315A1 - 实现光线路终端切片的方法、存储介质、电子设备及装置 - Google Patents
实现光线路终端切片的方法、存储介质、电子设备及装置 Download PDFInfo
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04Q—SELECTING
- H04Q11/00—Selecting arrangements for multiplex systems
- H04Q11/0001—Selecting arrangements for multiplex systems using optical switching
- H04Q11/0062—Network aspects
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04Q—SELECTING
- H04Q11/00—Selecting arrangements for multiplex systems
- H04Q11/0001—Selecting arrangements for multiplex systems using optical switching
- H04Q11/0062—Network aspects
- H04Q11/0067—Provisions for optical access or distribution networks, e.g. Gigabit Ethernet Passive Optical Network (GE-PON), ATM-based Passive Optical Network (A-PON), PON-Ring
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L41/00—Arrangements for maintenance, administration or management of data switching networks, e.g. of packet switching networks
- H04L41/08—Configuration management of networks or network elements
- H04L41/0895—Configuration of virtualised networks or elements, e.g. virtualised network function or OpenFlow elements
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L41/00—Arrangements for maintenance, administration or management of data switching networks, e.g. of packet switching networks
- H04L41/12—Discovery or management of network topologies
- H04L41/122—Discovery or management of network topologies of virtualised topologies, e.g. software-defined networks [SDN] or network function virtualisation [NFV]
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04Q—SELECTING
- H04Q11/00—Selecting arrangements for multiplex systems
- H04Q11/0001—Selecting arrangements for multiplex systems using optical switching
- H04Q11/0062—Network aspects
- H04Q2011/0064—Arbitration, scheduling or medium access control aspects
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04Q—SELECTING
- H04Q11/00—Selecting arrangements for multiplex systems
- H04Q11/0001—Selecting arrangements for multiplex systems using optical switching
- H04Q11/0062—Network aspects
- H04Q2011/0079—Operation or maintenance aspects
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04Q—SELECTING
- H04Q11/00—Selecting arrangements for multiplex systems
- H04Q11/0001—Selecting arrangements for multiplex systems using optical switching
- H04Q11/0062—Network aspects
- H04Q2011/0086—Network resource allocation, dimensioning or optimisation
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04Q—SELECTING
- H04Q2213/00—Indexing scheme relating to selecting arrangements in general and for multiplex systems
- H04Q2213/1305—Software aspects
Definitions
- This application relates to the technical field of broadband access networks, for example, to a method, storage medium, electronic equipment, and device for slicing an optical line terminal (OLT, Optical Line Terminal).
- OLT optical line terminal
- Network slicing technology has been applied to the 5th Generation Mobile (Technology, 5G) network.
- the application of network slicing technology in the field of access network has become an irresistible trend, and has gradually become an operator ’s Basic requirements of access equipment manufacturers.
- a physical access network can be divided into multiple logical networks, and logically different networks correspond to different services.
- a network can use network slicing technology to realize different slices for carrying home broadband, business user services, government and enterprise dedicated lines, etc .; it can also lease free ports and network resources to other small operators to improve network utilization Rate to achieve rapid profitability.
- OLT Optical line terminal
- ONU optical network unit
- PON Passive Optical Network
- PON board card PON board card
- OLT slicing technology has just emerged. Many OLT equipment manufacturers have only realized the physical management view of network slicing. This implementation method does not achieve the purpose of complete resource isolation at the user level, which does not conform to the usage habits of general users.
- the present application provides a method, storage medium, electronic equipment and device for realizing OLT slicing, which can improve user experience.
- This application provides a method for implementing optical line terminal OLT slicing, including:
- the attribute information of the generated slice resource node object is adjusted.
- the present application also provides a computer-readable storage medium that stores computer-executable instructions, where the computer-executable instructions are used to perform any of the methods described above.
- the present application further provides an electronic device for implementing OLT slicing, including a processor and a memory; wherein, the memory stores a computer program that can run on the processor: for performing the method described in any one of the above.
- the present application further provides an apparatus for implementing OLT slicing, including a generating unit and an adjusting unit; wherein,
- the generating unit is set to generate a slice resource node object according to the network slice information of the network slice to be created;
- the adjustment unit is configured to adjust the attribute information of the generated slice resource node object according to the preset mapping relationship between the slice physical device resource and the slice logical device resource.
- FIG. 2 is a schematic structural diagram of a slice resource tree provided by this application.
- FIG. 3 is a schematic structural diagram of a device for implementing OLT slicing provided by this application;
- FIG. 4 is a schematic diagram of a process for implementing OLT slicing provided in the first embodiment of this application;
- FIG. 5 is a schematic flowchart of managing the OLT slice provided in the second embodiment of the present application.
- FIG. 6 is a schematic flowchart of querying resource business data provided in a third embodiment of the present application.
- FIG. 7 is a schematic flowchart of configuring resource business data provided in a fourth embodiment of the present application.
- FIG. 8 is a schematic flowchart of displaying alarm information provided in the fifth embodiment of the present application.
- OLT slicing is to divide the physical resources on the OLT into different virtual OLTs (vOLTs, virtual OLTs). This virtual OLT is a slice.
- the OLT resources involved in slicing include PON boards, PON ports, and ONUs.
- the resources on each OLT can be identified by the resource identifier.
- the resource identifier can be understood as the location information of the resource.
- the following OLT resource representation can be used as an example of the resource representation in this application: single board
- the resource identification can be expressed as: slot number (slot)
- the PON port resource identification can be expressed as: slot number-PON port number (slot-ponport)
- the ONU resource identification can be expressed as: slot number-PON port ID-ONU identifier (Identifier, ID) (slot-ponport-onuid).
- ID Identifier
- the slicing function is composed of two parts: slice control and slice management. among them,
- Slicing control is performed on the physical OLT, including creating slices and dividing slice resources.
- the physical OLT divides three different slices according to service types: vOLT1, vOLT2, and vOLT3.
- the three different slices are used to carry small cell services, Internet Protocol Television (IPTV, Internet protocolvision) services, or high-speed Internet access (HIS).
- IPTV Internet Protocol Television
- HIS high-speed Internet access
- IP Internet Protocol
- IP Internet Protocol
- VoIP Voice over Internet Protocol
- the slice management is performed on the slice itself.
- a slice is selected from the EMS client, and the slice management is realized by entering the slice management interface.
- the management of the slice is equivalent to the management of the physical OLT, for example, you can create an ONU, query ONU information, and so on.
- the difference from the management of the physical OLT is that in the range of resources managed, the slice can only see and manage the resources belonging to the slice.
- Such slice management is based on the physical view of resources, which will make users perceive other slices, and the identification of resources cannot be planned according to their own needs, and the user experience is poor. Take an example:
- FIG. 1 is a flowchart of a method for implementing OLT slicing in this application. As shown in FIG. 1, it includes:
- Step 1000 Generate a slice resource node object according to the network slice information of the network slice to be created.
- the execution subject of the method of the present application is a Broadband Access Abstraction Layer (BAA, Boardband Access, Layer) or OLT (hereinafter referred to as BAA / OLT).
- BAA Broadband Access Abstraction Layer
- OLT hereinafter referred to as BAA / OLT.
- the BAA / OLT is provided with a device that realizes OLT slicing.
- generating a slice resource node object according to the network slice information of the network slice to be created includes:
- EMS / SDN controller Receive network slice information from the EMS controller or SDN controller (hereinafter referred to as EMS / SDN controller) that carries the network slice identification information to be created;
- the storage of the relevant data of the network slice on the BAA / OLT can be achieved through, for example, a file method, a file method in a database, or other formats.
- the sliced resource tree is a tree structure.
- the hierarchical structure of resource nodes on the sliced resource tree may include: "OLT node-network slice node-PON single board node-PON port node -ONU node ".
- each resource node on the sliced resource tree corresponds to a sliced resource node object
- the data structure of the sliced resource node object includes the following attribute information: the level to which the resource belongs, the physical identifier of the resource, the physical identifier of the parent resource node Resource logical identifier, parent resource node logical identifier, and resource status (for example: 1 means not valid, 2 means valid) among them,
- the level to which the resource belongs for example: 1 for OLT, 2 for slice, 3 for board, 4 for port, and 5 for ONU;
- the physical identification of the resource for example: for the OLT, it can be an IP address, such as 10.64.23.45, 10.64.23.46 in Figure 2, or the name of the OLT, such as OLT1 and OLT2 in Figure 2; another example: for the slice, the identification can be The name of the slice, such as vOLT1 and vOLT2 in Figure 2; for another example: for the PON board, PON port and ONU, you can use the resource notation mentioned above, as "3" in Figure 2 indicates the slot number is 3 PON board, "3-1" indicates the PON port number 1 on the PON board with slot number 3, "3-1-1” indicates the PON port number 1 on the PON board with slot number 3
- the ONU with ID 1 is ONU, and so on, and will not be repeated here.
- the attribute information of the slice physical resource node object includes:
- adding a slice resource node object corresponding to the network slice information on the slice resource tree according to the obtained network slice information includes:
- the resource node includes: a PON board, a PON port, and an ONU.
- the attribute information of the physical resource node object includes:
- the attribute information of the physical resource node object includes:
- the attribute information of the physical resource node object includes:
- Step 1010 Adjust the attribute information of the generated slice resource node object according to the preset mapping relationship between the slice physical device resource and the slice logical device resource.
- the present application implements a logical view management function of a slice resource through a preset mapping relationship between a slice physical device resource (which may be referred to as physical resource in this article) and a slice logical device resource (which may be referred to as logical resource in this article).
- the sliced physical device resources include: PON boards, PON ports, and ONUs.
- adjusting the attribute information of the generated slice resource node object includes:
- the attribute information of the logical resource node object in all the slice resource node objects under the network slice is modified on the slice resource tree, for example, the attribute information of the logical identifier of the resource and the logical identifier of the parent resource node.
- the attribute information of the logical resource node object that needs to be modified includes the underlined part:
- the attribute information of the logical resource node object includes the underlined part:
- the attribute information of the logical resource node object includes the underlined part:
- This application realizes that the resource numbers seen from the logical view of slicing vOLT1 resources are all continuous through the mapping relationship between slicing physical device resources and slicing logical device resources, or conform to the preset rules that meet the user's own needs.
- the vOLT1 that makes slice users feel that they manage is an independent device, thereby greatly improving the user experience.
- the method for implementing OLT slicing in this application also includes:
- Step 1020 According to the management configuration information, manage the network slice based on the physical view of the slice resource or the logical view of the slice resource.
- the network slice when creating an OLT slice, the network slice includes physical resource attributes and logical resource attributes. Therefore, the virtual OLT in this application supports both slice resource physical view and slice resource logical view two slice resource management methods.
- network slicing includes physical resource attributes and logical resource attributes, and provides a guarantee for the realization of slicing logical resource management through the mapping relationship between physical resources and logical resources, thereby improving the user experience.
- the resource information displayed on the virtual OLT includes the physical location information of the device; in the logical view mode of sliced resources, the resource information displayed on the virtual OLT includes the logical location information of the device; where the device includes a PON board, PON port and ONU.
- step 1020 includes:
- the management of the designated OLT slice based on the physical view of the slicing resources includes: querying resource business data in the physical view of the slicing resources;
- the management of the specified OLT slice based on the slice resource logical view includes at least one of the following:
- the management configuration information includes:
- View mode information indicating the physical view mode of the slice resource or the logical view mode of the slice resource, that is, the physical view mode of the slice resource or the logical view mode of the slice resource;
- the slice identification of the network slice to be managed is the slice identification of the network slice to be managed
- resource service data query, and / or resource service data modification, and / or management information for creating ONU that is, performing resource service data query, and / or resource service data modification, and / or creating ONU.
- the slice resource management view mode is configured through the EMS / SDN controller.
- the slice resource management modes that can be selected include: a slice resource physical view mode, or a slice resource logical view mode.
- the resource service data query in the physical view of the sliced resource in step 1020 includes:
- the slice identifier of the network slice to be managed is the slice identifier of the selected slice to be queried
- the management information is the physical identifier of the resource to be queried
- BAA / OLT retrieves the attribute information of the resource node object corresponding to the physical identifier of the resource to be queried by searching its own sliced resource tree, and BAA / OLT delivers the physical identifier of the resource to be queried corresponding to the obtained attribute information of the resource node object To the OLT; receive the detailed information of the resource obtained by the OLT according to the physical identifier of the resource to be queried by the OLT; the BAA / OLT returns the physical identifier and detailed information of the resource to the EMS / SDN controller, thus completing the slicing The slice resource query management function in the resource physical view mode.
- the resource business data query in the sliced resource logical view mode in step 1020 includes:
- the slice ID of the network slice to be managed is the slice ID of the selected slice to be queried
- the management information is the logical ID of the resource to be queried
- BAA / OLT retrieves its own sliced resource tree to obtain the attribute information of the resource node object corresponding to the logical identifier of the resource to be queried.
- BAA / OLT will compare the attribute information of the resource node object with the obtained attribute information of the resource node object
- the corresponding logical identifier of the resource to be queried is sent to the OLT;
- the detailed information of the resource obtained by the OLT returned by the OLT according to the logical identifier of the resource to be queried is received;
- the BAA / OLT then returns the logical identifier of the resource and the detailed information of the resource EMS / SDN controller, thus completing the slice resource query management function under the logical view of slice resources.
- the resource service data in the sliced resource logical view mode in step 1020 is modified, include:
- BAA / OLT retrieves the attribute information of the resource node object corresponding to the logical identifier of the resource to be modified by searching its own sliced resource tree.
- BAA / OLT will correspond to the attribute information of the resource node object according to the obtained attribute information of the resource node object
- the logical identifier of the resource and the resource business data to be modified are sent to the OLT; the processing result after the OLT returns the OLT to the resource business data after the modification is completed (such as successful modification or modification failure); the BAA / OLT will then process the result Return to the EMS / SDN controller to complete the resource business data modification management function under the logical view of slicing resources.
- creating an ONU in the logical view of the slice resource in step 1020 includes:
- the processing result of creating the ONU on the OLT itself (such as creation success or creation failure);
- the BAA / OLT modifies the attribute information of the resource status in the attribute information of the resource node object to which the ONU belongs to the above to become effective, and returns a processing success response to the EMS / SDN controller.
- the method of implementing OLT slicing in this application proposes the concept of slicing logical view, so that different slicing resources are completely isolated from the slicing user, and it is closer to the user's real usage scenario.
- the mapping of slice physical resources and slice logical resources in this application adopts a clear and simple resource tree data structure (equivalent to resource index), which saves the occupation of storage space, and the business data of resources is still stored in On the physical OLT, there is no storage for redundant data. That is to say, in the solution for implementing OLT slicing in this application, a lightweight and robust slice management persistence layer is established with high execution efficiency; moreover, the functions of OLT network elements in related technologies have basically not changed. It is conducive to protecting operators' existing investments and efficient use of network resources.
- Embodiments of the present application also provide a computer-readable storage medium that stores computer-executable instructions, where the computer-executable instructions are used to perform any of the methods described above.
- An embodiment of the present application further provides an electronic device for implementing OLT slicing, including a processor and a memory; wherein, the memory stores a computer program that can run on the processor: the computer program is used to perform any of the above methods .
- FIG. 3 is a schematic structural diagram of a device for implementing OLT slicing according to this application. As shown in FIG. 3, it includes at least: a generating unit and an adjusting unit;
- the generating unit is configured to generate a slice resource node object according to the network slice information of the network slice to be created.
- the adjustment unit is configured to adjust the attribute information of the generated slice resource node object according to the preset mapping relationship between the slice physical device resource and the slice logical device resource.
- the apparatus for implementing OLT slicing in this application further includes: a processing unit configured to manage the network slicing based on the slice resource physical view or the slice resource logical view according to the management configuration information.
- the generation unit is set to:
- the generation unit is set to:
- the resource node includes: a PON board, a PON port, and an ONU.
- the adjustment unit is set to:
- the attribute information of the logical resource node object in all the slice resource node objects under the network slice is modified on the slice resource tree.
- the processing unit is set to:
- the processing unit is set to manage the specified OLT slice through resource business data query in the physical view mode of the slice resource;
- the management configuration information includes:
- View mode information that is, the physical view mode of the slice resource or the logical view mode of the slice resource
- the slice identification of the network slice to be managed is the slice identification of the network slice to be managed
- Management information that is, resource business data query, and / or resource business data modification, and / or creation of ONU.
- the device for implementing OLT slicing may be provided in the BAA or OLT.
- the device that implements OLT slicing when the device that implements OLT slicing is provided in the OLT, in the embodiment of the present application, the device that implements OLT slicing and the OLT are treated as two different subsystems, and the two may also be communicated through Commands to exchange information.
- the slice resource tree only stores the information of the OLT network element nodes managed by the BAA.
- FIG. 4 is a schematic flowchart of implementing OLT slicing in the first embodiment of the present application. As shown in FIG. 4, the first embodiment includes:
- Step 400 The BAA / OLT creates a network slice, such as vOLT1 in this embodiment.
- the name of the network slice is vOLT1, and the granularity of the network slice is ONU; after determining the above configuration, the EMS / SDN controller will send the network slice information to the BAA / OLT;
- BAA / OLT under the OLT node of the slicing resource tree Based on the obtained network slicing information, BAA / OLT under the OLT node of the slicing resource tree, according to the attribute information included in the data structure of the resource node object (that is, the resource belongs to the level, the physical identification of the resource, the physical identification of the parent resource node, the logical identification of the resource , The logical identifier of the parent resource node, the resource status (for example: 1 means not effective, 2 means effective)), add slice resource node object, get: “slice", "vOLT1", "10.62.12.3”, "", " " ","In force”.
- Step 401 The BAA / OLT divides resources of the created network slice.
- the slice vOLT1 in this embodiment is divided into resources.
- the network slice information includes:
- ONU (3-3-3), ONU (3-3-5), ONU (3-5-4), ONU (3-5-6)) are allocated to vOLT1.
- the BAA / OLT adds the following resources underlined under the OLT node of the slice resource tree Node object attribute information:
- Step 402 The EMS / SDN controller configures a network slice, that is, a mapping relationship between physical resources and logical resources of vOLT1 in this embodiment.
- mapping the physical resources allocated to vOLT1 to logical resources In order to allow users to manage the resource information of network slices in a logical view of slice resources, map the physical resources allocated to vOLT1 to logical resources.
- the rules for resource mapping can be implemented by customizing the mapping relationship between physical resources and logical resources. In the example, assume that the mapping rules are as follows:
- Board mapping mode unchanged. That is, the identification information of the slice physical board and the logical board are consistent.
- PON port mapping mode natural order mapping. For example: port 3-3-> 3-1, 3-5-> 3-2. Among them, the symbol “->” means "map as”.
- ONU mapping mode natural order mapping. For example: ONU 3-3-3-> 3-1-1, 3-3-5-> 3-1-2, 3-5-4-> 3-2-1, 3-5-6-> 3 -2-2.
- the EMS / SDN controller sends the defined mapping relationship between physical resources and logical resources to the BAA / OLT, and the BAA / OLT stores the mapping relationship between physical resources and logical resources in the persistence layer.
- Step 403 The BAA / OLT modifies the slice resource tree according to the resource mapping relationship to adjust the attribute information of the slice resource node object of the generated network slice, such as the attribute information of the slice resource node object under vOLT1 in this embodiment.
- This step is to modify the resource logical identifier in the resource node object under the slice vOLT1 and the resource logical identifier attribute value of the parent resource node to the corresponding logical identifier after mapping.
- the attribute information of the slice resource node object modified in this step is underlined as follows:
- FIG. 5 is a schematic diagram of a process for managing OLT slicing in the second embodiment of the present application.
- the second embodiment takes the creation of an ONU based on a logical view of slicing resources as an example.
- the ONU is created in the logical view of the slice resource through the EMS / SDN controller client, that is, a new ONU is created under the slice (vOLT1 + "3-1" logical PON port).
- Step 500 The BAA / OLT receives the information from the new ONU delivered by the EMS / SDN controller.
- Enter the information of the new ONU that needs to be newly created including the ONU ID (ONU ID), which is the logical ID of the ONU, which is 1 in this embodiment, and other ONU information, such as the type of ONU device. , ONU name, ONU authentication type, ONU authentication value, etc.
- the EMS / SDN controller will send the configured information of the new ONU, that is, "slice identifier vOLT1" + "ONU resource logic identifier 3-1-1" + ONU service configuration information to the BAA / OLT.
- Step 501 The BAA / OLT retrieves the slice resource tree and issues an ONU creation command to the OLT.
- the BAA / OLT After receiving the information of the new ONU delivered by the EMS / SDN controller, the BAA / OLT retrieves the slice resource tree according to the retrieval conditions, namely "vOLT1" + "3-1-1" in the information of the configured new ONU, to To obtain the attribute information of the resource node object of this ONU, taking the slice OLT established in the first embodiment as an example, the obtained attribute information of the resource node object of this ONU is as follows:
- the physical resource identifier corresponding to the logical ONU "3-1-1” can be obtained as “3-3-3”; then, the BAA / OLT can know the physical physics of vOLT1 according to the slice identifier vOLT1
- the IP address of the OLT is "10.62.12.3”; the ONU command is issued to the OLT network element with the IP address "10.62.12.3”.
- the ONU command creation information includes "ONU physical resource identifier 3-3-3" + ONU service configuration information.
- Step 502 Create a new ONU on the OLT according to the information of the new ONU.
- the OLT After receiving the create ONU command issued by the BAA / OLT, the OLT creates a "3-3-3" ONU under the physical "3-3" PON port, and returns a successful response message to the BAA / OLT.
- Step 503 The BAA / OLT modifies the attribute information of the resource node object of the ONU.
- the BAA / OLT After receiving the successful result information returned by the OLT, the BAA / OLT changes the resource status in the attribute information of the resource node object of the new ONU from ineffective to effective, that is, to:
- the BAA / OLT returns to the EMS / SDN controller the success result of creating the ONU.
- FIG. 6 is a schematic flowchart of querying resource business data in a third embodiment of the present application. It is assumed that the slicing resources in the third embodiment use the same slicing resources as the second embodiment.
- the third embodiment uses a logical view based on slicing resources Using the EMS / SDN controller client to query resources as an example, query all ONU information under the slice (vOLT1 + "3-1" logical PON port), as shown in Figure 6, including:
- Step 600 The BAA / OLT receives the resource query condition delivered from the EMS / SDN controller.
- the EMS / SDN controller sends a command to the BAA / OLT to query all ONU information under the specified PON port.
- the query conditions can include: slice identification vOLT1 + logic PON port location information 3-1.
- Step 601 The BAA / OLT retrieves the slice resource tree to obtain the logical ID list of the ONU to be queried.
- the BAA / OLT After receiving the query condition issued by the EMS / SDN controller, the BAA / OLT retrieves the slice resource tree according to the query condition, that is, the slice identifier vOLT1 + logical PON port location information 3-1, to obtain the "3-1" PON port in vOLT1
- the obtained attribute information of all ONU resource node objects is as follows:
- Step 602 The BAA / OLT sends to the OLT the information about the physical identifier list of the ONU resource to be queried.
- BAA / OLT can know the IP address of the physical OLT to which vOLT1 belongs, namely 10.62.12.3 according to the slice identifier vOLT1; it issues a command to query the detailed information of all ONUs under the specified PON port to the OLT corresponding to IP address 10.62.12.3 Carry the ONU physical identification list information of the ONU to be queried.
- the number of the ONU physical identification list to be queried is 1, and the physical identification of this ONU is "3-3-3" .
- Step 603 The BAA / OLT receives the detailed information of the ONU to be queried returned by the OLT.
- the OLT After receiving the ONU physical identification list information delivered by the BAA / OLT, the OLT obtains detailed information of each ONU to be queried from the OLT according to the ONU physical identification.
- the detailed information of the ONU may include, for example, ONU device type, ONU name, ONU Authentication method, ONU authentication value, etc .; OLT returns the detailed information of the queried ONU to BAA / OLT.
- Step 604 The BAA / OLT returns the logical identifier and detailed information of the ONU resource to be queried to the EMS / SDN controller.
- the BAA / OLT After receiving the detailed information of the ONU returned by the OLT, the BAA / OLT returns the logical identifier and detailed information of the ONU resource of the ONU to be queried to the EMS / SDN controller.
- information of an ONU is returned, including the logical identifier of the ONU resource, that is, 3-3-3, and service details of the ONU.
- FIG. 7 is a schematic diagram of a process of configuring resource business data in a fourth embodiment of the present application.
- the fourth embodiment is based on a logical view of slicing resources
- Step 700 Query ONU service information.
- the EMS / SDN controller client sends a command for querying the ONU service information to the BAA / OLT, where the query conditions may include: slice identification vOLT1 + logical ONU location information 3-1-1.
- This step enables ONU service information to be returned to the EMS / SDN controller client.
- the implementation of the query can be referred to the third embodiment, and will not be repeated here.
- Step 701 The EMS / SDN controller delivers the modified ONU service information.
- the queried ONU service information can be modified through the ONU service information modification interface on the EMS / SDN controller client; the EMS / SDN controller delivers the modified ONU service information to the BAA / OLT To BAA / OLT.
- the slice identifier vOLT1 + ONU resource logical identifier 3-1-1 + modified ONU service configuration information can be modified through the ONU service information modification interface on the EMS / SDN controller client; the EMS / SDN controller delivers the modified ONU service information to the BAA / OLT To BAA / OLT.
- Step 702 The BAA / OLT retrieves the slice resource tree and issues an ONU modification command to the OLT.
- BAA / OLT retrieves the slice resource tree according to the retrieval conditions, namely "vOLT1" + “3-1-1", to obtain the attribute information of the resource node object of this ONU, and then obtains the corresponding logical ONU "3-1-1" corresponding
- the physical resource identification is "3-3-3" and the IP address of the OLT;
- the command information may include: "ONU physical resource identifier 3-3-3" + ONU service configuration information to be modified.
- Step 703 Modify the service information of the ONU on the OLT.
- the OLT modifies the "3-3-3" ONU under the "3-3" physical PON port and returns the modification to the BAA / OLT A successful result response message; the BAA / OLT returns the result to the EMS / SDN controller.
- FIG. 8 is a schematic flowchart of displaying alarm information in the fifth embodiment of the present application.
- the slicing resources in the fifth embodiment use the same slicing resources as the second embodiment
- the fifth embodiment adopts a logical view based on the slicing resources.
- the EMS / SDN controller client implements the display of the alarm information of the slicing device as an example.
- the optical signal of the physical ONU 3-1-1 under the slice vOLT1 is lost, and the optical light of the ONU is displayed in the EMS / SDN controller client as a logical resource
- Signal loss alarm information includes:
- Step 800 The physical OLT detects the ONU optical signal loss alarm.
- Step 801 The BAA / OLT receives the alarm information reported from the physical OLT.
- the physical OLT sends the alarm information indicating that the ONU optical signal is lost to the BAA / OLT, and the alarm information includes the device alarm position, namely "3-3-3".
- Step 802 The BAA / OLT retrieves the slice resource tree to obtain the alarm logical location information.
- the BAA / OLT obtains the physical device location corresponding to the alarm information according to the obtained alarm information as: "vOLT1" + "ONU physical resource identifier 3-3-3"; retrieve the slice resource tree according to the physical device location to obtain the ONU's The attribute information of the resource node object, and then the logical resource identifier corresponding to the physical ONU "3-3-3" is acquired as "3-1-1".
- Step 803 The BAA / OLT reports the logical ONU alarm information to the EMS / SDN controller.
- the BAA / OLT forwards the obtained ONU optical signal loss alarm to the EMS / SDN controller.
- the alarm location information is logical resource "3-1-1", and the EMS / SDN controller displays the ONU alarm in the form of logical resource.
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Abstract
本申请公开了一种实现光线路终端OLT切片的方法、存储介质、电子设备及装置,该方法包括:根据待创建网络切片的网络切片信息生成切片资源节点对象;根据预先设置的切片物理设备资源与切片逻辑设备资源的映射关系,调整生成的切片资源节点对象的属性信息。
Description
本申请要求在2018年10月26日提交中国专利局、申请号为201811257251.2的中国专利申请的优先权,该申请的全部内容通过引用结合在本申请中。
本申请涉及宽带接入网技术领域,例如涉及一种实现光线路终端(OLT,Optical Line Terminal)切片的方法、存储介质、电子设备及装置。
网络切片技术已经应用于第五代移动通信技术(the 5th Generation Mobile Communication Technology,5G)网络,在接入网领域应用网络切片技术已经成为了不可阻挡的趋势,且已经慢慢成为运营商对宽带接入设备厂商的基本要求。
通过网络切片技术可以将一张物理的接入网络,划分为多个逻辑网络,逻辑上不同的网络对应不同的业务。比如:一张网络可以通过网络切片技术实现不同切片分别用于承载家庭宽带、商业用户业务、政企专线等;也可以将空闲端口、网络资源租赁给其他小的运营商,以提升网络的利用率,从而实现快速盈利。
光线路终端(OLT,Optical Line Terminal)切片技术基于光网络单元(ONU,Optical Network Unit)、无源光网络(PON,Passive Optical Network)端口、PON板卡等多种粒度将OLT划分为功能独立、资源隔离的多个切片逻辑,以实现OLT切片功能。OLT切片技术也是宽带接入网向软件定义网络(SDN,Software Defined Network)和网络功能虚拟化(NFV,Network Function Virtualization)演进中的关键步骤,做到了资源的按需灵活配置,并有助于新业务的迅速试错调优。
OLT切片技术刚刚兴起,多家OLT设备厂商只实现了网络切片物理管理视图,这种实现方式在用户层面并没有达到资源完全隔离的目的,不符合一般用户的使用习惯。
发明内容
本申请提供一种实现OLT切片的方法、存储介质、电子设备及装置,能够提升用户体验。
本申请提供了一种实现光线路终端OLT切片的方法,包括:
根据待创建网络切片的网络切片信息生成切片资源节点对象;
根据预先设置的切片物理设备资源与切片逻辑设备资源的映射关系,调整生成的切片资源节点对象的属性信息。
本申请还提供了一种计算机可读存储介质,存储有计算机可执行指令,所述计算机可执行指令用于执行上述任一项所述的方法。
本申请又提供了一种实现OLT切片的电子设备,包括处理器、存储器;其中,存储器上存储有可在处理器上运行的计算机程序:用于执行上述任一项所述的方法。
本申请再提供一种实现OLT切片的装置,包括生成单元、调整单元;其中,
生成单元,设置为根据待创建网络切片的网络切片信息生成切片资源节点对象;
调整单元,设置为根据预先设置的切片物理设备资源与切片逻辑设备资源的映射关系,调整生成的切片资源节点对象的属性信息。
图1为本申请提供的实现OLT切片的方法的流程图;
图2为本申请提供的切片资源树的结构示意图;
图3为本申请提供的实现OLT切片的装置的组成结构示意图;
图4为本申请第一实施例中提供的实现OLT切片的流程示意图;
图5为本申请第二实施例中提供的管理OLT切片的流程示意图;
图6为本申请第三实施例中提供的查询资源业务数据的流程示意图;
图7为本申请第四实施例中提供的配置资源业务数据的流程示意图;
图8为本申请第五实施例中提供的显示告警信息的流程示意图。
下文中将结合附图对本申请的实施例进行说明。在不冲突的情况下,本申请中的实施例及实施例中的特征可以相互组合。
切片是网络切片的简称,OLT切片就是将OLT上的物理资源划分到不同虚拟OLT(vOLT,virtual OLT)上,这个虚拟OLT就是切片。切片涉及到的OLT资源包括PON单板、PON端口以及ONU。每个OLT上的资源可以通过资源标识来识别,资源的标识可以理解为资源的位置信息,为了描述方便,可以以如 下的OLT资源表示法为例来作为本申请中的资源表示法:单板的资源标识可以表示为:槽位号(slot),PON端口的资源标识可以表示为:槽位号-PON端口号(slot-ponport),ONU的资源标识可以表示为:槽位号-PON端口号-ONU标识(Identifier,ID)(slot-ponport-onuid)。比如:“3”表示槽位号为3的PON单板,“3-3”表示槽位号为3的PON单板上的3号PON端口,“3-3-3”表示槽位号为3的PON单板上的3号PON端口上的ONU ID为3的ONU。
相关技术中,切片功能由切片控制和切片管理两部分组成。其中,
切片控制在物理OLT上进行,包括创建切片和划分切片资源。比如:物理OLT根据业务类型划分出三个不同的切片:vOLT1、vOLT2、vOLT3,三个不同的切片分别用来承载小基站业务、网络协议电视(IPTV,Internet protocol television)业务或高速上网(HIS,high speed Internet)业务或基于互联网协议(Internet Protocol,IP)的语音传输(VoIP,Voice over Internet Protocol)业务、政企客户业务。在实际应用中,通过登录网元管理系统(EMS,element management system)客户端,选中OLT设备,就可以对该OLT进行上述创建切片和划分切片资源的切片控制。
切片管理针对切片本身进行,实际应用中,从EMS客户端选择一个切片,通过进入该切片的管理界面实现切片管理。对切片的管理等同于对物理OLT的管理,比如:可以创建ONU、查询ONU信息等。与物理OLT的管理的不同点在于,所管理的资源范围上,切片只能看到并管理属于该切片的资源。这样的切片管理基于资源的物理视图,会让用户感知到其他切片,且对资源的标识不能按照自身的需求进行规划,用户体验差。举个例子来看:
假设下列ONU(3-2-4,3-2-5,3-2-8,8-3-3,8-3-4)划分给了切片vOLT1。从相关技术中的切片vOLT1资源物理视图看出的资源编号都是不连续的,这会让切片用户感知到其他切片网络的存在;另外不连续的资源编号,不方便用户管理。这样,严重地影响了用户体验。
如果从切片vOLT1资源逻辑视图看出的资源编号都是连续的或者符合预先设置的满足用户自身需求的规则,这会让切片用户感觉自己管理的vOLT1是独立的设备,从而大大提升用户体验。图1为本申请实现OLT切片的方法的流程图,如图1所示,包括:
步骤1000:根据待创建网络切片的网络切片信息生成切片资源节点对象。
本申请方法的执行主体是宽带接入抽象层(BAA,Boardband Access Abstration Layer)或OLT(下文简称为BAA/OLT)。在BAA/OLT中设置有实现OLT切片的装置。
在一种示例性实例中,根据待创建网络切片的网络切片信息生成切片资源节点对象,包括:
接收来自EMS控制器或SDN控制器(下文简称为EMS/SDN控制器)选择的携带有网络切片标识信息的待创建网络切片的网络切片信息;
根据获得的网络切片信息在切片资源树上添加与所述网络切片信息对应的切片资源节点对象。
在一实施例中,本申请中可以通过如文件方式、以数据库或者其他多种格式的文件方式等来实现网络切片的相关数据在BAA/OLT上的存储(即数据的持久化)。
在一种示例性实例中,切片资源树是树状结构,如图2所示,切片资源树上资源节点的层次结构可以包括:“OLT节点-网络切片节点-PON单板节点-PON端口节点-ONU节点”。
在一种示例性实例中,切片资源树上的每个资源节点对应一个切片资源节点对象,切片资源节点对象的数据结构包括如下属性信息:资源所属层次、资源物理标识、父资源节点物理标识、资源逻辑标识、父资源节点逻辑标识以及资源状态(比如:1表示未生效,2表示已生效)。其中,
资源所属层次,比如:1表示OLT,2表示切片,3表示单板,4表示端口,5表示ONU;
资源物理标识,比如:对于OLT,可以是IP地址,如图2中的10.64.23.45、10.64.23.46),或者OLT名称,如图2中的OLT1、OLT2;再如:对于切片,标识可以是切片名称,如图2中的vOLT1、vOLT2;又如:对于PON单板、PON端口和ONU,可以采用上文提到的资源表示法,如图2中的“3”表示槽位号为3的PON单板,“3-1”表示槽位号为3的PON单板上的1号PON端口,“3-1-1”表示槽位号为3的PON单板上的1号PON端口上的ONU ID为1的ONU,以此类推,这里不再赘述。
在一种示例性实例中,切片物理资源节点对象的属性信息包括:
在一种示例性实例中,根据获得的网络切片信息在切片资源树上添加与所述网络切片信息对应的切片资源节点对象,包括:
接收来自EMS/SDN控制器分配给网络切片的资源信息;BAA/OLT在自身的持久化层中的切片资源树上添加该网络切片下的所有资源节点。
在一种示例性实例中,所述资源节点包括:PON单板、PON端口以及ONU。
对于PON单板,物理资源节点对象的属性信息包括:
对于PON端口,物理资源节点对象的属性信息包括:
对于ONU,物理资源节点对象的属性信息包括:
步骤1010:根据预先设置的切片物理设备资源与切片逻辑设备资源的映射关系,调整生成的切片资源节点对象的属性信息。
本申请通过预先设置的切片物理设备资源(本文中可以简称物理资源)与切片逻辑设备资源(本文中可以简称逻辑资源)的映射关系来实现切片资源逻辑视图管理功能。
在一种示例性实例中,切片物理设备资源包括:PON单板、PON端口以及ONU。
在一种示例性实例中,调整生成的切片资源节点对象的属性信息,包括:
接收来自EMS/SDN控制器设置的物理资源与逻辑资源的映射关系;
根据映射关系,在切片资源树上修改网络切片下的所有切片资源节点对象中的逻辑资源节点对象的属性信息,比如:资源逻辑标识和父资源节点逻辑标识的属性信息。
对于PON单板,需要修改的逻辑资源节点对象的属性信息包括带下划线部分:
对于PON端口,逻辑资源节点对象的属性信息包括带下划线部分:
对于ONU,逻辑资源节点对象的属性信息包括带下划线部分:
本申请通过切片物理设备资源与切片逻辑设备资源的映射关系,实现了从切片vOLT1资源逻辑视图看出的资源编号都是连续的,或者是符合预先设置的满足用户自身需求的规则的。实现了让切片用户感觉自己管理的vOLT1是独立的设备,从而大大提升用户体验。
本申请实现OLT切片的方法,还包括:
步骤1020:根据管理配置信息,基于切片资源物理视图或切片资源逻辑视图管理网络切片。
本申请中,在创建OLT切片时,网络切片包括物理资源属性和逻辑资源属性,因此,本申请中的虚拟OLT同时支持切片资源物理视图和切片资源逻辑视图两种切片资源管理方式。
通过本申请实现OLT切片的方法,网络切片包括物理资源属性和逻辑资源属性,并通过物理资源与逻辑资源的映射关系为实现切片逻辑资源管理提供了保障,从而提升了用户体验。
在切片资源物理视图方式下,虚拟OLT上显示的资源信息包括设备物理位置信息;在切片资源逻辑视图方式下,虚拟OLT上显示的资源信息包括设备逻辑位置信息;其中,设备包括PON单板、PON端口以及ONU。
可选地,步骤1020包括:
接收来自EMS/SDN控制器的管理配置信息,按照管理配置信息基于切片资源物理视图方式或切片资源逻辑视图方式对指定OLT切片进行管理。
在一种示例性实例中,基于切片资源物理视图对指定OLT切片进行的管理包括:所述切片资源物理视图方式下的资源业务数据查询;
基于切片资源逻辑视图方式对指定OLT切片进行的管理包括以下至少之一:
切片资源逻辑视图方式下的资源业务数据查询;
切片资源逻辑视图方式下的资源业务数据修改;
在切片资源逻辑视图方式下创建ONU。
在一种示例性实例中,管理配置信息包括:
表明切片资源物理视图方式或切片资源逻辑视图方式的视图方式信息,即切片资源物理视图方式或切片资源逻辑视图方式;
需要管理的网络切片的切片标识;
表明资源业务数据查询、和/或资源业务数据修改,和/或创建ONU的管理 信息,即进行资源业务数据查询、和/或资源业务数据修改,和/或创建ONU。
在一种示例性实例中,通过EMS/SDN控制器配置切片资源管理视图方式,可以选择的切片资源管理方式包括:切片资源物理视图方式,或者切片资源逻辑视图方式。
在一种示例性实例中,步骤1020中的切片资源物理视图方式下的资源业务数据查询,包括:
当管理配置信息中的视图方式为切片资源物理视图方式、需要管理的网络切片的切片标识为选择出的待查询切片的切片标识、管理信息为待查询的资源物理标识时,在一种示例性实例中,BAA/OLT接收到的来自EMS/SDN控制器的管理配置信息可以包括:“视图方式=切片资源物理视图方式+切片标识+待查询的资源物理标识”;
BAA/OLT通过检索自身的切片资源树,获取待查询的资源物理标识所对应的资源节点对象的属性信息,BAA/OLT将获得的资源节点对象的属性信息对应的待查询的资源物理标识下发给OLT;接收OLT返回的OLT根据待查询的资源物理标识得到的资源的详细信息;BAA/OLT再将待查询的资源物理标识和资源的详细信息返回给EMS/SDN控制器,从而完成了切片资源物理视图方式下的切片资源查询管理功能。
在一种示例性实例中,步骤1020中的切片资源逻辑视图方式下的资源业务数据查询,包括:
当管理配置信息中的视图方式为切片资源逻辑视图方式、需要管理的网络切片的切片标识为选择出的待查询切片的切片标识、管理信息为待查询的资源逻辑标识时,在一种示例性实例中,BAA/OLT接收到的来自EMS/SDN控制器的管理配置信息可以包括:“视图方式=切片资源逻辑视图方式+切片标识+待查询的资源逻辑标识”;
BAA/OLT通过检索自身的切片资源树,获取待查询的资源逻辑标识所对应的资源节点对象的属性信息,BAA/OLT根据获得的资源节点对象的属性信息将与所述资源节点对象的属性信息对应的待查询的资源逻辑标识下发给OLT;接收OLT返回的OLT根据待查询的资源逻辑标识得到的资源的详细信息;BAA/OLT再将待查询的资源逻辑标识和资源的详细信息返回给EMS/SDN控制器,从而完成了切片资源逻辑视图方式下的切片资源查询管理功能。
在一种示例性实例中,如果EMS/SDN控制器需要对获得的资源业务信息(如采用上述查询方式获得)进行修改,那么,步骤1020中的切片资源逻辑视图方式下的资源业务数据修改,包括:
当管理配置信息中的视图方式为切片资源逻辑视图方式、需要管理的网络切片的切片标识为选择出的待修改切片的切片标识、管理信息为待修改的资源逻辑标识及待修改的资源业务数据时,在一种示例性实例中,BAA/OLT接收到的来自EMS/SDN控制器的管理配置信息可以包括:“视图方式=切片资源逻辑视图方式+切片标识+待修改的资源逻辑标识+待修改的资源业务数据”;
BAA/OLT通过检索自身的切片资源树,获取待修改的资源逻辑标识对应的资源节点对象的属性信息,BAA/OLT根据获得的资源节点对象的属性信息将与所述资源节点对象的属性信息对应的资源逻辑标识,以及待修改的资源业务数据下发给OLT;接收OLT返回的OLT对所述资源业务数据修改完成后的处理结果(如修改成功或修改失败);BAA/OLT再将处理结果返回给EMS/SDN控制器,从而完成了切片资源逻辑视图方式下的资源业务数据修改管理功能。
在一种示例性实例中,步骤1020中的切片资源逻辑视图方式下创建ONU,包括:
当管理配置信息中的视图方式为切片资源逻辑视图方式、需要管理的网络切片的切片标识为选择出的待查询切片的切片标识、管理信息为待创建的ONU逻辑标识及待创建的ONU的业务信息时,在一种示例性实例中,BAA/OLT接收到的来自EMS/SDN控制器的管理配置信息可以包括:“视图方式=切片资源逻辑视图方式+切片标识+待创建的ONU逻辑标识+待创建的ONU的业务信息”;在相应逻辑PON端口下创建ONU的过程包括如下:
BAA/OLT根据获得的管理配置信息中的“视图方式=切片资源逻辑视图方式+切片标识+待创建的ONU逻辑标识”信息检索自身的切片资源树,获取待创建的ONU对应的资源节点对象的属性信息,BAA/OLT根据获得的资源节点对象的属性信息将与所述资源节点对象的属性信息对应的待创建的资源逻辑标识和待创建的ONU的业务信息下发给该资源节点对象的属性信息对应的OLT;接收OLT返回的OLT根据得到的待创建的资源物理标识和待创建的ONU的业务信息在OLT自身创建ONU的处理结果(如创建成功或创建失败);
如果所述处理结果是成功的,那么,BAA/OLT将上述创建的ONU所属资 源节点对象的属性信息中的资源状态的属性信息修改为已生效,并向EMS/SDN控制器返回处理成功应答。
本申请实现OLT切片的方法提出了切片逻辑视图概念,使不同切片资源对切片用户来讲是完全隔离的,更贴近用户真实的使用场景。
在一实施例中,本申请中切片物理资源与切片逻辑资源的映射采用了层次清晰且简单的资源树数据结构(相当于资源索引),节省了存储空间的占用,资源的业务数据还是存储在物理OLT上,所以不存在存储冗余数据。也就是说,在本申请实现OLT切片的方案中,建立的是一个轻量化、健壮性好的切片管理持久化层,执行效率高;而且,相关技术中的OLT网元功能基本没有变化,更有利于保护运营商已有投资和网络资源的高效利用。
本申请实施例还提供一种计算机可读存储介质,存储有计算机可执行指令,所述计算机可执行指令用于执行上述任一项所述的方法。
本申请实施例还提供一种实现OLT切片的电子设备,包括处理器、存储器;其中,存储器上存储有可在处理器上运行的计算机程序:所述计算机程序用于执行上述任一项的方法。
图3为本申请实现OLT切片的装置的组成结构示意图,如图3所示,至少包括:生成单元、调整单元;其中,
生成单元,设置为根据待创建网络切片的网络切片信息生成切片资源节点对象。
调整单元,设置为根据预先设置的切片物理设备资源与切片逻辑设备资源的映射关系,调整生成的切片资源节点对象的属性信息。
可选地,本申请实现OLT切片的装置还包括:处理单元,设置为根据管理配置信息,基于切片资源物理视图或切片资源逻辑视图管理网络切片。
在一种示例性实例中,生成单元是设置为:
接收来自EMS/SDN控制器选择的携带有网络切片标识信息的待创建网络切片的网络切片信息;
根据获得的网络切片信息在切片资源树上添加与所述网络切片信息对应的切片资源节点对象。
在一种示例性实例中,生成单元中是设置为:
接收来自EMS/SDN控制器分配给网络切片的资源信息;BAA/OLT在自身的持久化层中的切片资源树上添加该网络切片下的所有资源节点。
在一种示例性实例中,所述资源节点包括:PON单板、PON端口以及ONU。
在一种示例性实例中,调整单元是设置为:
接收来自EMS/SDN控制器设置的切片物理设备资源与切片逻辑设备资源的映射关系;
根据映射关系,在切片资源树上修改网络切片下的所有切片资源节点对象中的逻辑资源节点对象的属性信息。
在一种示例性实例中,处理单元是设置为:
接收来自EMS/SDN控制器的管理配置信息,按照管理配置信息基于切片资源物理视图方式或切片资源逻辑视图方式对指定OLT切片进行管理。
处理单元是设置为通过所述切片资源物理视图方式下的资源业务数据查询对指定OLT切片进行的管理;以及
通过下述至少一种方式对指定OLT切片进行的管理:
切片资源逻辑视图方式下的资源业务数据查询;
切片资源逻辑视图方式下的资源业务数据修改;
在切片资源逻辑视图方式下创建ONU。
在一种示例性实例中,管理配置信息包括:
视图方式信息,即切片资源物理视图方式或切片资源逻辑视图方式;
需要管理的网络切片的切片标识;
管理信息,即资源业务数据查询、和/或资源业务数据修改,和/或创建ONU。
下面结合实施例对本申请获取网络拓扑的方法进行描述。
本申请实施例中,实现OLT切片的装置可以设置在BAA或OLT中。在一实施例中,当实现OLT切片的装置设置在OLT中时,本申请实施例中将实现OLT切片的装置与OLT作为两个不同的子系统来看待,二者之间也可以是通过通信命令来交互信息。
在一实施例中,本申请实施例中假设BAA/OLT只管理一个物理网元OLT(假设IP地址作为OLT标识:10.62.12.3),并假设该OLT下有一块PON单板A(slot=3),PON单板A下有8个PON端口,每个PON端口支持255个ONU。在没有创建网络切片时,切片资源树只存储BAA所管理的OLT网元节点信息。
图4为本申请第一实施例中实现OLT切片的流程示意图,如图4所示,第一实施例包括:
步骤400:BAA/OLT创建网络切片,如本实施例中的vOLT1。
在一种示例性实例中,可以通过登录EMS/SDN控制器,打开网络切片控制视图,选中OLT,在视图菜单中选择如“增加网络切片”选项,之后在弹出的界面中配置网络切片信息:网络切片名称为vOLT1,网络切片粒度为ONU;在确定上述配置后,EMS/SDN控制器会将网络切片信息下发给BAA/OLT;
BAA/OLT则根据获得的网络切片信息,在切片资源树的OLT节点下,按照资源节点对象的数据结构包括的属性信息(即资源所属层次、资源物理标识、父资源节点物理标识、资源逻辑标识、父资源节点逻辑标识、资源状态(比如:1表示未生效,2表示已生效)),添加切片资源节点对象,得到:“切片”,“vOLT1”,“10.62.12.3”,“”,“”,“已生效”。
步骤401:BAA/OLT对创建的网络切片进行资源划分。如对本实施例中的切片vOLT1进行资源划分。
举例来看,在一种实例性实例中,如果网络切片信息包括:
将OLT上的PON单板A的PON端口3中的ONU ID设置为ONU ID=3,5;
OLT上的PON单板A的PON端口5中的ONU ID设置为ONU ID=4,6;
即得到:将ONU(3-3-3),ONU(3-3-5),ONU(3-5-4),ONU(3-5-6)共4个ONU分配给vOLT1。
那么,在EMS/SDN控制器将上述4个分配给vOLT1的ONU物理标识信息包含在网络切片信息中发送给BAA/OLT后,BAA/OLT在切片资源树的OLT节点下添加如下带下划线的资源节点对象的属性信息:
步骤402:EMS/SDN控制器配置网络切片即本实施例中的vOLT1的物理资源与逻辑资源映射关系。
为了用户能以切片资源逻辑视图方式管理网络切片的资源信息,将已分配给vOLT1上的物理资源映射为逻辑资源,资源映射的规则可以通过自定义物理资源与逻辑资源映射关系来实现,本实施例中,假设映射规则如下:
单板映射方式:不变。即切片物理单板与逻辑单板的标识信息保持一致。
PON端口映射方式:自然排序映射。比如:端口3-3->3-1,3-5->3-2。其中,符号“->”表示“映射为”。
ONU映射方式:自然排序映射。比如:ONU 3-3-3->3-1-1,3-3-5->3-1-2,3-5-4->3-2-1,3-5-6->3-2-2。
EMS/SDN控制器会将定义好的物理资源与逻辑资源映射关系发送给BAA/OLT,BAA/OLT将物理资源与逻辑资源映射关系存储到持久层中。
步骤403:BAA/OLT根据资源映射关系修改切片资源树,以调整生成的网络切片的切片资源节点对象的属性信息,如本实施例中的vOLT1下的切片资源节点对象的属性信息。
本步骤即是将切片vOLT1下的资源节点对象中的资源逻辑标识和父资源节点资源逻辑标识属性值修改为映射后的相应逻辑标识。
本步骤修改后的切片资源节点对象的属性信息如下带下划线的内容:
图5为本申请第二实施例中管理OLT切片的流程示意图,如图5所示,第二实施例以基于切片资源逻辑视图方式下创建ONU为例,假设第二实施例的切片资源使用与第一实施例同样的切片资源。
第二实施例通过EMS/SDN控制器客户端在切片资源逻辑视图方式下创建ONU,即在切片(vOLT1+“3-1”逻辑PON端口)下创建一个新ONU。
步骤500:BAA/OLT接收来自EMS/SDN控制器下发的新ONU的信息。
在一种示例性实例中,可以通过打开EMS/SDN控制器客户端,选择切片vOLT1,进入到vOLT1的ONU配置管理界面,选择“3-1”逻辑PON端口,在该PON端口下点击创建ONU按钮,弹出创建ONU的界面,输入当前需要新创建的新ONU的信息,包括ONU标识(ONU ID)即ONU的逻辑标识,本实施例中为1,以及其他ONU的信息,比如包括ONU设备类型、ONU名称、ONU认证类型、ONU认证值等。
EMS/SDN控制器将配置好的新ONU的信息,即“切片标识vOLT1”+“ONU资源逻辑标识3-1-1”+ONU业务配置信息,下发给BAA/OLT。
步骤501:BAA/OLT检索切片资源树并向OLT下发创建ONU命令。
BAA/OLT收到EMS/SDN控制器下发的新ONU的信息后,根据检索条件即配置好的新ONU的信息中的“vOLT1”+“3-1-1”,检索切片资源树,以获取这个ONU的资源节点对象的属性信息,以第一实施例中建立的切片OLT为例,获得的这个ONU的资源节点对象的属性信息如下:
【“ONU”,“3-3-3”,“3-3”,“3-1-1”,“3-1”,“未生效”】
通过这个资源节点对象的属性信息,可以获取逻辑ONU“3-1-1”对应的物理资源标识为“3-3-3”;那么,BAA/OLT根据切片标识vOLT1,可以获知vOLT1所属的物理OLT的IP地址为“10.62.12.3”;向IP地址为“10.62.12.3”的OLT网元下发创建ONU命令,创建ONU命令信息包括“ONU物理资源标识3-3-3”+ONU业务配置信息。
步骤502:按照新ONU的信息在该OLT上创建新ONU。
OLT接收到BAA/OLT下发的创建ONU命令后,在物理“3-3”PON端口下,创建“3-3-3”ONU,并向BAA/OLT返回创建成功的结果应答信息。
步骤503:BAA/OLT修改ONU的资源节点对象的属性信息。
BAA/OLT收到OLT返回的成功结果信息后,将该新ONU的资源节点对象的属性信息中的资源状态由未生效修改为已生效,即修改为:
【“ONU”,“3-3-3”,“3-3”,“3-1-1”,“3-1”,“已生效”】。
BAA/OLT向EMS/SDN控制器返回创建ONU成功结果信息。
图6为本申请第三实施例中查询资源业务数据的流程示意图,假设第三实施例中的切片资源使用与第二实施例同样的切片资源,第三实施例以基于切片资源逻辑视图方式,通过EMS/SDN控制器客户端查询资源为例,查询切片(vOLT1+“3-1”逻辑PON端口)下所有ONU信息,如图6所示,包括:
步骤600:BAA/OLT接收来自EMS/SDN控制器下发的资源查询条件。
在一种示例性实例中,可以通过打开EMS/SDN控制器客户端,选择切片vOLT1,打开vOLT1的机架板位图,选中“3-1”逻辑PON端口,如选择查询ONU信息的菜单或按钮,以要求查询“3-1”逻辑PON端口下所有ONU信息,同时EMS/SDN控制器向BAA/OLT下发查询指定PON端口下所有ONU信息的命令,查询条件可以包括:切片标识vOLT1+逻辑PON端口位置信息3-1。
步骤601:BAA/OLT检索切片资源树以获取待查询ONU逻辑标识列表。
BAA/OLT接收到EMS/SDN控制器下发的查询条件后,根据查询条件即切片标识vOLT1+逻辑PON端口位置信息3-1,检索切片资源树以获取vOLT1中“3-1”PON端口下的所有ONU资源节点对象的属性信息,以第二实施例中建 立的切片OLT为例,获得的所有ONU资源节点对象的属性信息如下:
【“ONU”,“3-3-3”,“3-3”,“3-1-1”,“3-1”,“已生效”】
【“ONU”,“3-3-5”,“3-3”,“3-1-2”,“3-1”,“未生效”】
可以看出,“3-1”PON端口下存在两个逻辑ONU节点,因为逻辑“3-1-2”未生效(即还未配置在OLT上),因此,真实存在的只有一个ONU逻辑“3-1-1”,从ONU资源节点对象中可以获得该逻辑ONU所对应的物理资源标识为“3-3-5”。
步骤602:BAA/OLT向OLT下发待查询的ONU资源物理标识列表信息。
BAA/OLT根据切片标识vOLT1,可以获知vOLT1所属的物理OLT的IP地址即10.62.12.3;向IP地址10.62.12.3对应的OLT下发查询指定PON端口下的所有ONU的详细信息的命令,该命令携带待查询ONU的ONU物理标识列表信息,本实施例中,由于只有一个已生效的ONU,所以待查询的ONU物理标识列表的数量为1,这个ONU的物理标识为“3-3-3”。
步骤603:BAA/OLT接收OLT返回的待查询ONU的详细信息。
OLT接收到BAA/OLT下发的ONU物理标识列表信息后,根据ONU物理标识从OLT上获取待查询的每个ONU的详细信息,ONU的详细信息可以包括如:ONU设备类型、ONU名称、ONU认证方式、ONU认证值等;OLT将查询到的ONU的详细信息返回给BAA/OLT。
步骤604:BAA/OLT向EMS/SDN控制器返回待查询的ONU资源逻辑标识及详细信息。
BAA/OLT收到OLT返回的ONU的详细信息后,将该待查询的ONU的ONU资源逻辑标识和详细信息返回给EMS/SDN控制器。本实施例中,会返回一个ONU的信息,包括ONU资源的逻辑标识即3-3-3,以及该ONU的业务详细信息。
图7为本申请第四实施例中配置资源业务数据的流程示意图,假设第四实施例中的切片资源使用与第二实施例同样的切片资源,第四实施例以基于切片资源逻辑视图方式,通过EMS/SDN控制器客户端配置资源业务数据为例,修改切片vOLT1下的逻辑ONU 3-1-1对应的业务信息,比如ONU名称、ONU认证 值等,如图7所示,包括:
步骤700:查询ONU业务信息。
在一种示例性实例中,可以通过打开EMS/SDN控制器客户端,选择切片vOLT1,打开vOLT1的机架板位图,选中逻辑3-1-1ONU,选择查询ONU信息的菜单或按钮,以使EMS/SDN控制器客户端向BAA/OLT下发查询ONU业务信息的命令,其中查询条件可以包括:切片标识vOLT1+逻辑ONU位置信息3-1-1。
本步骤实现了ONU业务信息返回到EMS/SDN控制器客户端。查询的实现方式可以参见第三实施例,这里不再赘述。
步骤701:EMS/SDN控制器下发修改后的ONU业务信息。
在一种示例性实例中,可以通过EMS/SDN控制器客户端上的ONU业务信息修改界面,修改查询到的ONU业务信息;EMS/SDN控制器向BAA/OLT下发修改后的ONU业务信息到BAA/OLT。如切片标识vOLT1+ONU资源逻辑标识3-1-1+修改后的ONU业务配置信息。
步骤702:BAA/OLT检索切片资源树并向OLT下发修改ONU命令。
BAA/OLT根据检索条件即“vOLT1”+“3-1-1”,检索切片资源树,以获取这个ONU的资源节点对象的属性信息,进而获取该逻辑ONU“3-1-1”对应的物理资源标识为“3-3-3”以及OLT的IP地址;
向这个OLT下发修改ONU命令,命令信息可以包括:“ONU物理资源标识3-3-3”+待修改的ONU业务配置信息。
步骤703:在OLT上修改ONU的业务信息。
在一种示例性实例中,OLT收到BAA/OLT下发的创建修改命令后,在“3-3”物理PON端口下,修改“3-3-3”ONU,并向BAA/OLT返回修改成功的结果应答信息;BAA/OLT再将结果返回给EMS/SDN控制器。
图8为本申请第五实施例中显示告警信息的流程示意图,假设第五实施例中的切片资源使用与第二实施例同样的切片资源,第五实施例以基于切片资源逻辑视图方式,通过EMS/SDN控制器客户端实现切片设备告警信息的显示为例,假设切片vOLT1下物理ONU 3-1-1的光信号丢失,在EMS/SDN控制器客 户端以逻辑资源方式显示该ONU的光信号丢失告警信息,如图8所示,包括:
步骤800:物理OLT检测到ONU光信号丢失告警。
本实施例中,假设物理OLT发现物理ONU 3-3-3出现光信号丢失。
步骤801:BAA/OLT接收到来自物理OLT上报的告警信息。
物理OLT将表示ONU光信号丢失的告警信息发送给BAA/OLT,告警信息中包括有设备告警位置即“3-3-3”。
步骤802:BAA/OLT检索切片资源树以获取告警逻辑位置信息。
BAA/OLT根据获得的告警信息获取与该告警信息对应的物理设备位置为:“vOLT1”+“ONU物理资源标识3-3-3”;根据该物理设备位置检索切片资源树,获取这个ONU的资源节点对象的属性信息,进而获取该物理ONU“3-3-3”对应的逻辑资源标识为“3-1-1”。
步骤803:BAA/OLT向EMS/SDN控制器上报逻辑ONU告警信息。
BAA/OLT向EMS/SDN控制器转发获得的ONU光信号丢失告警,告警位置信息为逻辑资源“3-1-1”,EMS/SDN控制器以逻辑资源方式显示该ONU告警。
Claims (25)
- 一种实现光线路终端OLT切片的方法,包括:根据待创建网络切片的网络切片信息生成切片资源节点对象;根据预先设置的切片物理设备资源与切片逻辑设备资源的映射关系,调整生成的切片资源节点对象的属性信息。
- 根据权利要求1所述的方法,还包括:根据管理配置信息,基于切片资源物理视图或切片资源逻辑视图管理网络切片。
- 根据权利要求1或2所述的方法,其中,所述根据待创建网络切片的网络切片信息生成切片资源节点对象,包括:接收来自网元管理系统EMS控制器或软件定义网络SDN控制器选择的携带有网络切片标识信息的待创建网络切片的所述网络切片信息;根据获得的所述网络切片信息在切片资源树上添加与所述网络切片信息对应的切片资源节点对象。
- 根据权利要求3所述的方法,其中,所述根据获得的网络切片信息在切片资源树上添加与所述网络切片信息对应的切片资源节点对象,包括:接收来自所述EMS控制器或所述SDN控制器分配给网络切片的资源信息;在持久化层中的所述切片资源树上添加所述网络切片下的所有资源节点。
- 根据权利要求4所述的方法,其中,所述资源节点包括:无源光网络PON单板、PON端口以及光网络单元ONU。
- 根据权利要求5所述的方法,其中,所述切片资源树上的每个资源节点对应一个切片资源节点对象;所述切片资源节点对象的数据结构包括如下属性信息:资源所属层次、资源物理标识、父资源节点物理标识、资源逻辑标识、父资源节点逻辑标识以及资源状态。
- 根据权利要求3所述的方法,其中,所述调整生成的切片资源节点对象的属性信息,包括:接收来自所述EMS控制器或所述SDN控制器设置的所述切片物理设备资源与所述切片逻辑设备资源的映射关系;根据所述映射关系,在所述切片资源树上修改网络切片下的所有切片资源节点对象中的逻辑资源节点对象的属性信息。
- 根据权利要求2所述的方法,其中,所述基于切片资源物理视图或切片资源逻辑视图管理网络切片,包括:接收来自EMS控制器或SDN控制器的管理配置信息;按照所述管理配置信息基于切片资源物理视图方式或切片资源逻辑视图方式对指定OLT切片进行管理。
- 根据权利要求8所述的方法,其中,所述基于切片资源物理视图对指定OLT切片进行的管理包括:所述切片资源物理视图方式下的资源业务数据查询;所述基于切片资源逻辑视图方式对指定OLT切片进行的管理包括以下至少之一:所述切片资源逻辑视图方式下的资源业务数据查询;所述切片资源逻辑视图方式下的资源业务数据修改;在所述切片资源逻辑视图方式下创建ONU。
- 根据权利要求8所述的方法,其中,所述管理配置信息包括:表明所述切片资源物理视图方式或所述切片资源逻辑视图方式的视图方式信息;需要管理的网络切片的切片标识;表明资源业务数据查询、资源业务数据修改和创建ONU中至少一项的管理信息。
- 根据权利要求10所述的方法,其中,所述视图方式信息为所述切片资源物理视图方式,所述需要管理的网络切片的切片标识为选择出的待查询切片的切片标识,所述管理信息为待查询的资源物理标识;所述对指定OLT切片进行管理,包括:通过检索切片资源树,获取所述待查询的资源物理标识所对应的资源节点对象的属性信息,将获得的资源节点对象的属性信息对应的待查询的资源物理标识下发给OLT;接收所述OLT返回的所述OLT根据所述待查询的资源物理标识得到的资源的详细信息;将所述待查询的资源物理标识和所述资源的详细信息返回给所述EMS控制器或所述SDN控制器。
- 根据权利要求10所述的方法,其中,所述视图方式信息为所述切片资源逻辑视图方式,所述需要管理的网络切片的切片标识为选择出的待查询切片的切片标识,所述管理信息为待查询的资源逻辑标识;所述对指定OLT切片进行管理,包括:通过检索切片资源树,获取所述待查询的资源逻辑标识所对应的资源节点对象的属性信息,根据获得的资源节点对象的属性信息将与所述资源节点对象的属性信息对应的待查询的资源逻辑标识下发给OLT;接收所述OLT返回的所述OLT根据所述待查询的资源逻辑标识得到的资源的详细信息;将所述待查询的资源逻辑标识和所述资源的详细信息返回给所述EMS控制器或所述SDN控制器。
- 根据权利要求10所述的方法,其中,所述视图方式信息为所述切片资源逻辑视图方式,所述需要管理的网络切片的切片标识为选择出的待修改切片的切片标识,所述管理信息为待修改的资源逻辑标识及待修改的资源业务数据;所述对指定OLT切片进行管理,包括:通过检索切片资源树,获取所述待修改的资源逻辑标识对应的资源节点对象的属性信息,根据获得的资源节点对象的属性信息将与所述资源节点对象的属性信息对应的待修改的资源逻辑标识和待修改的资源业务数据下发给OLT;接收所述OLT返回的所述OLT对所述资源业务数据修改完成后的处理结果;将所述处理结果返回给所述EMS控制器或所述SDN控制器。
- 根据权利要求10所述的方法,其中,所述视图方式信息为所述切片资源逻辑视图方式,所述需要管理的网络切片的切片标识为选择出的待查询切片的切片标识,所述管理信息为待创建的ONU逻辑标识及待创建的ONU的业务信息;所述对指定OLT切片进行管理,包括:根据获得的管理配置信息检索切片资源树,获取待创建的ONU对应的资源节点对象的属性信息,根据获得的资源节点对象的属性信息将与所述资源节点对象的属性信息对应的待创建的资源逻辑标识和待创建的ONU的业务信息下发给所述资源节点对象的属性信息对应的OLT;接收所述OLT返回的所述OLT根据得到的待创建的资源物理标识和所述待创建的ONU的业务信息在所述OLT自身创建ONU的处理结果。
- 一种计算机可读存储介质,存储有计算机可执行指令,所述计算机可执行指令用于执行权利要求1至权利要求14中任一项所述的方法。
- 一种实现光线路终端OLT切片的电子设备,包括处理器、存储器;其中,存储器上存储有可在所述处理器上运行的计算机程序,所述计算机程序用于执行权利要求1至权利要求14中任一项所述的方法。
- 一种实现光线路终端OLT切片的装置,包括生成单元、调整单元;其中,所述生成单元,设置为根据待创建网络切片的网络切片信息生成切片资源节点对象;所述调整单元,设置为根据预先设置的切片物理设备资源与切片逻辑设备资源的映射关系,调整生成的切片资源节点对象的属性信息。
- 根据权利要求17所述的装置,还包括:处理单元,设置为根据管理配置信息,基于切片资源物理视图或切片资源逻辑视图管理网络切片。
- 根据权利要求17或18所述的装置,其中,所述生成单元是设置为:接收来自网元管理系统EMS控制器或软件定义网络SDN控制器选择的携带有网络切片标识信息的待创建网络切片的所述网络切片信息;根据获得的所述网络切片信息在切片资源树上添加与所述网络切片信息对应的切片资源节点对象。
- 根据权利要求19所述的装置,其中,所述生成单元是设置为:接收来自所述EMS控制器或所述SDN控制器分配给网络切片的资源信息;在持久化层中的所述切片资源树上添加所述网络切片下的所有资源节点。
- 根据权利要求20所述的装置,其中,所述资源节点包括:无源光网络PON单板、PON端口以及光网络单元ONU。
- 根据权利要求19所述的装置,其中,所述调整单元是设置为:接收来自所述EMS控制器或所述SDN控制器设置的所述切片物理设备资源与所述切片逻辑设备资源的映射关系;根据所述映射关系,在所述切片资源树上修改网络切片下的所有切片资源节点对象中的逻辑资源节点对象的属性信息。
- 根据权利要求18所述的装置,其中,所述处理单元是设置为:接收来自EMS控制器或SDN控制器的管理配置信息;按照所述管理配置信息基于切片资源物理视图方式或切片资源逻辑视图方式对指定OLT切片进行管理。
- 根据权利要求23所述的装置,其中,所述处理单元是设置为通过所述切片资源物理视图方式下的资源业务数据查询对指定OLT切片进行的管理;以及至少一种方式对指定OLT切片进行的管理:所述切片资源逻辑视图方式下的资源业务数据查询;所述切片资源逻辑视图方式下的资源业务数据修改;在所述切片资源逻辑视图方式下创建ONU。
- 根据权利要求23所述的装置,其中,所述管理配置信息包括:表明所述切片资源物理视图方式或所述切片资源逻辑视图方式的视图方式信息;需要管理的网络切片的切片标识;表明资源业务数据查询、资源业务数据修改和创建ONU中至少一项的管理信息。
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EP3873102A4 (en) | 2022-07-27 |
CN111107450A (zh) | 2020-05-05 |
EP3873102A1 (en) | 2021-09-01 |
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