WO2018157299A1 - 一种光线路终端olt设备虚拟方法及相关设备 - Google Patents

一种光线路终端olt设备虚拟方法及相关设备 Download PDF

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Publication number
WO2018157299A1
WO2018157299A1 PCT/CN2017/075246 CN2017075246W WO2018157299A1 WO 2018157299 A1 WO2018157299 A1 WO 2018157299A1 CN 2017075246 W CN2017075246 W CN 2017075246W WO 2018157299 A1 WO2018157299 A1 WO 2018157299A1
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WIPO (PCT)
Prior art keywords
olt
virtual
systems
different
vlan
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PCT/CN2017/075246
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English (en)
French (fr)
Inventor
张艳华
韦增战
汪道明
唐建文
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华为技术有限公司
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Application filed by 华为技术有限公司 filed Critical 华为技术有限公司
Priority to EP21217830.5A priority Critical patent/EP4040739B1/en
Priority to PCT/CN2017/075246 priority patent/WO2018157299A1/zh
Priority to CN201780086547.XA priority patent/CN110301104B/zh
Priority to CN202011567372.4A priority patent/CN112737690B/zh
Priority to EP17898944.8A priority patent/EP3579461B1/en
Publication of WO2018157299A1 publication Critical patent/WO2018157299A1/zh
Priority to US16/552,084 priority patent/US11336973B2/en

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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
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B10/00—Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
    • H04B10/27—Arrangements for networking
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L12/00—Data switching networks
    • H04L12/28—Data switching networks characterised by path configuration, e.g. LAN [Local Area Networks] or WAN [Wide Area Networks]
    • H04L12/46—Interconnection of networks
    • H04L12/4641—Virtual LANs, VLANs, e.g. virtual private networks [VPN]
    • 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
    • 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

Definitions

  • the present application relates to the field of optical communication technologies, and in particular, to a virtual method and related device for an optical line terminal OLT device.
  • the fiber-based access technology has the advantages of high bandwidth, long-distance transmission capability, good confidentiality, strong anti-interference ability, etc., and can adapt to the current and future business development bandwidth requirements, and becomes the main implementation technology of the access network.
  • the Optical Line Terminal is the core component of the optical fiber-based optical access network, which is equivalent to a switch or router in a traditional communication network, and is also a multi-service providing platform.
  • OLT Optical Line Terminal
  • OLT devices usually need to carry the services of thousands of users, and these users may include ordinary users, bank users, enterprise users, government users, etc., and the needs of different users are also different.
  • bank users may The security requirements for data transmission are high.
  • Enterprise users may have higher requirements for data transmission.
  • an OLT device cannot meet the different needs of multiple services at the same time, or cannot flexibly meet multiple service requirements. The change, which brings great challenges to the OLT device's business processing, data forwarding, management control and so on.
  • the technical problem to be solved by the embodiments of the present invention is to provide a virtual method and related device for an optical line terminal OLT device, which solves the problem that the hardware layout conditions of the existing OLT device cannot be utilized in the prior art and simultaneously meet the transmission requirements of multiple services.
  • an embodiment of the present application provides a virtual method for an optical line terminal OLT device, which may include:
  • Creating a plurality of virtual OLT systems on the optical line terminal OLT device determining system resources of the plurality of virtual OLT systems according to a preset rule, where the system resources include physical resources and logical resources, wherein the multiple virtual OLTs The physical and logical resources of each virtual OLT system in the system are different.
  • the preset rule includes: a service board on the OLT device that is allocated by each of the multiple virtual OLT systems is different; or The port on the OLT device allocated by each of the plurality of virtual OLT systems is different; or the virtual OLT system in each of the plurality of virtual OLT systems is allocated on the OLT device
  • the optical network unit ONU is different; or each of the plurality of virtual OLT systems has a different service flow corresponding to the virtual OLT system.
  • the multiple virtual OLT systems include a management OLT system and at least one common OLT system, where The general OLT system is used to run and process OLT services, and the management OLT system is used to supervise the common OLT system and Run to process OLT services or to supervise the general OLT system.
  • the at least one common OLT system includes a first virtual OLT system and a second virtual OLT system
  • the method further includes: receiving a request sent by the first virtual OLT system to operate the second virtual OLT system; determining whether the first virtual OLT system meets a preset operation authority; if yes, executing, by the management OLT system, the first virtual OLT system The target operation of the second virtual OLT system.
  • the virtual OLT system includes multiple virtual local area network VLANs; the method further includes: respectively A corresponding forwarding domain FD is created in each of the plurality of virtual OLT systems, wherein the corresponding FDs of any two of the plurality of OLT virtual systems are different.
  • the multiple virtual OLT systems include a third virtual OLT system and a fourth virtual OLT system;
  • the intersection between the corresponding VLAN ID set and the VLAN ID set corresponding to the fourth virtual OLT system is not an empty set, and the VLAN ID set includes a VLAN ID of all VLANs in the corresponding OLT system.
  • the method further includes: creating a forwarding entry for the FD, where the forwarding entry includes a MAC address table and/or Routing table.
  • the logic resource includes an application process, a virtual machine VM, a thread, a network management, an alarm, a log, and a configuration. At least one of a file, a media access control MAC address, an IP address, a service flow, a VLAN, and a VLAN interface.
  • the physical resource includes a chassis, a slot, a port, an optical network terminal ONT, and a central processing unit CPU. And at least one in memory.
  • an optical line terminal OLT device which may include:
  • a processing unit configured to create multiple virtual OLT systems on the optical line terminal OLT device
  • the processing unit is further configured to separately determine system resources of the multiple virtual OLT systems according to a preset rule, where the system resources include physical resources and logical resources, where each of the multiple virtual OLT systems is virtualized The physical resources and logical resources of the OLT system are different.
  • the preset rule includes: a service board on the OLT device that is allocated by each of the multiple virtual OLT systems is different; or The port on the OLT device allocated by each of the plurality of virtual OLT systems is different; or the virtual OLT system in each of the plurality of virtual OLT systems is allocated on the OLT device
  • the optical network unit ONU is different; or each of the plurality of virtual OLT systems has a different service flow corresponding to the virtual OLT system.
  • the multiple virtual OLT systems include a management OLT system and at least one common OLT system, where The normal OLT system is used to run the OLT service, and the management OLT system is used to supervise the ordinary OLT system and run the processing OLT service or to supervise the ordinary OLT system.
  • the device is further included a receiving unit; the at least one general OLT system includes a first virtual OLT system and a second virtual OLT system; the processing unit is further configured to: receive, by the receiving unit, an operation sent by the first virtual OLT system, the second a request of the virtual OLT system; determining whether the first virtual OLT system satisfies a preset operation authority; if yes, performing, by the management OLT system, a target operation of the first virtual OLT system for the second virtual OLT system.
  • the virtual OLT system includes multiple virtual local area network VLANs; the processing unit is further configured to: respectively A corresponding forwarding domain FD is created for each of the plurality of virtual OLT systems, wherein the corresponding FDs of any two of the plurality of OLT virtual systems are different.
  • the multiple virtual OLT systems include a third virtual OLT system and a fourth virtual OLT system;
  • the intersection between the corresponding VLAN ID set and the VLAN ID set corresponding to the fourth virtual OLT system is not an empty set, and the VLAN ID set includes a VLAN ID of all VLANs in the corresponding OLT system.
  • the processing unit is further configured to: create a forwarding entry for the FD, where the forwarding entry includes a MAC address table and / or routing table.
  • the logic resource includes an application process, a virtual machine VM, a thread, a network management, an alarm, a log, and a configuration. At least one of a file, a media access control MAC address, an IP address, a service flow, a VLAN, and a VLAN interface.
  • the physical resource includes a chassis, a slot, a port, an optical network terminal ONT, and a central processing unit CPU. And at least one in memory.
  • the present application provides an optical line termination OLT device, which has the function of implementing the method in the optical circuit terminal OLT device virtual method embodiment.
  • This function can be implemented in hardware or in hardware by executing the corresponding software.
  • the hardware or software includes one or more modules corresponding to the functions described above.
  • the present application provides an optical line terminal OLT device, where the OLT device includes a processor, and the processor is configured to support the OLT device to perform a corresponding method in an optical circuit terminal OLT device virtual method provided by the first aspect.
  • the OLT device can also include a memory for coupling with the processor that holds the necessary program instructions and data for the OLT device.
  • the OLT device can also include a communication interface for the OLT device to communicate with other devices or communication networks.
  • the present application provides a computer storage medium for storing computer software instructions for an optical line terminal OLT device provided in the above fourth aspect, comprising a program designed to perform the above aspects.
  • the embodiment of the present application provides a computer program, where the computer program includes instructions, when the computer program is executed by a computer, to enable the computer to perform the optical line terminal OLT device virtual method according to any one of the foregoing first aspects. Process in.
  • a plurality of virtual OLT systems are created on an optical line terminal OLT device, and system resources of multiple virtual OLT systems are respectively determined according to a preset rule, where the system resources include physical resources and logical resources, where The physical resources and logical resources of each virtual OLT system in multiple virtual OLT systems are different. That is, in the present application, the virtual OLT device is externally provided after the virtual function is implemented, based on the network that has been deployed, without changing the network topology and the structure of the communication device itself. The functionality is consistent with the previous ones, and the customer's application experience and service delivery remain the same.
  • FIG. 1 is a schematic structural diagram of an optical communication system according to an embodiment of the present application.
  • FIG. 2 is a schematic structural diagram of a function of an OLT device according to an embodiment of the present application.
  • FIG 3 is an architectural diagram of an OLT device solution provided by an embodiment of the present application.
  • FIG. 4 is a structural diagram of another OLT device solution provided by an embodiment of the present application.
  • FIG. 5 is a schematic flowchart of a virtual method for an optical line terminal OLT device according to an embodiment of the present disclosure
  • FIG. 6 is a schematic flowchart of another virtual method for an optical line terminal OLT device according to an embodiment of the present disclosure
  • FIG. 7 is a schematic diagram of packet forwarding of an optical line terminal OLT device according to an embodiment of the present disclosure.
  • FIG. 8 is a schematic structural diagram of an optical line terminal OLT device according to an embodiment of the present disclosure.
  • FIG. 9 is a schematic structural diagram of another optical line terminal OLT device according to an embodiment of the present disclosure.
  • references to "an embodiment” herein mean that a particular feature, structure, or characteristic described in connection with the embodiments can be included in at least one embodiment of the present application.
  • the appearances of the phrases in various places in the specification are not necessarily referring to the same embodiments, and are not exclusive or alternative embodiments that are mutually exclusive. Those skilled in the art will understand and implicitly understand that the embodiments described herein can be combined with other embodiments.
  • An optical network unit is a user equipment in an optical network. It is placed at the user end and used with the OLT to implement Layer 2 and Layer 3 functions of the Ethernet to provide voice and data for users. Multimedia industry Business. Its main function is to choose to receive the number of data sent by the OLT in response to the management command issued by the OLT, and make corresponding adjustments. The user's Ethernet data is buffered and sent in the upstream direction in the transmission window allocated by the OLT. Other user management features.
  • MAC Media Access Control
  • OSI Open System Interconnect
  • the protocol is located in the lower half of the data link layer of the Open System Interconnect (OSI) seven-layer protocol and is responsible for controlling and connecting the physical medium of the physical layer.
  • OSI Open System Interconnect
  • the MAC protocol can determine in advance whether data can be sent. If it can be sent, some control information will be added to the data, and finally the data and control information will be sent to the physical layer in a prescribed format; when receiving data, MAC The protocol first judges the input information and whether a transmission error occurs. If there is no error, the control information is removed and sent to the LLC layer.
  • a virtual local area network is a communication technology that logically divides a physical local area network LAN into a plurality of broadcast domains.
  • a VLAN is a set of logical devices and users. These devices and users are not limited by physical location. They can be organized according to factors such as functions, departments, and applications. They communicate with each other as if they are on the same network segment. In the same way, hence the name of the virtual local area network.
  • the VLAN works in Layer 2 and Layer 3 of the OSI Reference Model.
  • a VLAN is a broadcast domain. Communication between VLANs is done through Layer 3 routers. In a computer network, a Layer 2 network can be divided into multiple different broadcast domains, and one broadcast domain corresponds to a specific user group. By default, these different broadcast domains are isolated from each other. To communicate between different broadcast domains, you need to pass one or more routers. Such a broadcast domain is called a VLAN.
  • Virtual System logically divides a communication device into multiple systems, each logical system is a virtual system, has the same function as the original system, and isolates resources. Each virtual system shares hardware resources but remains independent of each other.
  • the optical communication system architecture mainly includes: a user side, a network side, and an OLT device connected to the user side and the network side, and the OLT device will be a user.
  • the device on the side is connected to the routing device on the network side to function as a convergence and access.
  • the user side can access multiple devices, such as a PC, a base station, and an ONU.
  • the network side includes routing devices and various types of servers accessed by the Internet, such as DHCP servers or cloud servers.
  • FIG. 2 is a schematic diagram of the function structure of the OLT device according to the embodiment of the present application. And the role and role of the network side, the OLT device can be divided into the following four functional units:
  • Main control unit belongs to the system control management unit, completes the configuration, management and control of the entire OLT device, and implements functions such as simple routing protocols, and may undertake business processing, exchange, and aggregation;
  • User service unit Provides access to different types of user services, enabling user service access, processing, and forwarding.
  • Uplink interface unit A unit for providing an interface for system uplink (sometimes cascading), that is, network side access, for providing an uplink or cascade interface of the system.
  • the first three are the core of communication equipment.
  • these three types of units may be concentrated on the same board, or may be completely distributed on different boards.
  • directly abstract into three independent individuals to elaborate does not specifically limit this.
  • the virtual method of the optical line terminal OLT device provided in the present application is mainly corresponding to the foregoing main control unit, that is, the method embodiment in the present application is mainly performed by the main control unit, and Complete with several other functional units.
  • FIG. 3 is an OLT provided by an embodiment of the present application.
  • the architecture diagram of the device solution connects new services (such as base station services) by adding OLT devices, so that different OLT devices can be used to meet different service requirements.
  • new services such as base station services
  • the connection between the OLT device and the customer is a physical connection, if the customer needs to switch from one carrier to another, the connection needs to be re-adjusted, and the network flexibility is insufficient.
  • the network of general operators needs to pass the stages of planning, ordering, construction and construction.
  • various factors such as wiring, warehouse volume, power supply, etc., and it is very difficult to implement. Therefore, the investment cost of redeploying OLT equipment is high, the construction period is long, and the resource utilization rate is low, and the infrastructure is duplicated.
  • FIG. 4 is a structural diagram of another OLT device solution provided by an embodiment of the present application.
  • Ethernet ETH packets of different services to different VLAN fields.
  • the configuration management interface of the solution is still on the same interface. Therefore, the scenario in which the virtual carrier leases the network is not well supported. That is, data isolation can only be implemented, and isolation of resources and configuration interfaces cannot be achieved.
  • the OLT device operator must provide service configuration services and service delivery services, which is difficult to operate.
  • the technical problem that needs to be solved in the present application is how to utilize the hardware layout conditions of the existing OLT device while satisfying the transmission requirements of multiple services.
  • the above technical problem proposed in the present application is analyzed and solved in conjunction with the embodiment of the optical line terminal OLT device virtual method provided in the present application.
  • FIG. 5 is a schematic flowchart of a virtual method for an optical line terminal OLT device in the embodiment of the present application. Carry out a detailed description. More specifically, the executor of the embodiment of the present application may be the main control unit in the OLT device mentioned above, and the method includes but is not limited to the following steps S501 to S502.
  • Step S501 Create a plurality of virtual OLT systems on the optical line terminal OLT device.
  • multiple virtual OLT systems are created on one OLT device, that is, the same physical OLT device is divided into multiple virtual OLT systems, so that data is separated when passing through the OLT.
  • the multiple virtual OLT systems include a management OLT system and at least one A common OLT system, wherein the general OLT system is configured to run and process OLT services, and the management OLT system is used to supervise the ordinary OLT system and run the processing OLT service or to supervise the ordinary OLT system.
  • an OLT device can be decomposed into two types of virtual machines, managing a virtual machine and a common virtual machine, wherein only one management virtual machine has the right to allocate system resources, and the ordinary virtual machine only uses resource usage and service configuration, and the common virtual machine The number of machines is variable and can be arbitrarily created by the management virtual machine according to business needs.
  • Step S502 Determine system resources of the plurality of virtual OLT systems according to preset rules.
  • the system resource includes a physical resource and a logical resource, where physical resources and logical resources of each of the multiple virtual OLT systems are different, that is, physical resources and logic between different virtual OLT systems. Resources are completely isolated. The resources of the multiple virtual OLT systems are obtained by dividing the total resources of the OLT device.
  • resources may be allocated to multiple virtual OLT systems at the same time, or the virtual OLT systems created successively may be sequentially allocated.
  • the OLT device is uniformly allocated in advance, or it may be allocated when there is demand on demand.
  • the source of the allocated resources is derived from all physical and logical resources on the OLT device.
  • the logical resources include application process, virtual machine VM, thread, network management, alarm, log, configuration file, media access control MAC address, IP address, service flow, VLAN, and VLAN interface.
  • the physical resources may include a chassis, a slot, a port, an optical network terminal ONT, a central processing unit CPU, and a memory.
  • the specific rules for allocating system resources can include the following four ways:
  • Manner 1 The service board is divided according to the service board, that is, the service boards on the OLT device allocated by each virtual OLT system in the multiple virtual OLT systems are different. This mode is suitable for the scenario where a part of the device is leased to a virtual carrier. Each virtual carrier allocates several service boards. The ports, ONTs, service flows, and other objects described below on the service board belong to the corresponding common virtual OLT. system.
  • Manner 2 According to the port division: that is, the ports on the OLT device allocated by each virtual OLT system in the multiple virtual OLT systems are different. Divide different ports into different virtual OLT systems. This method is suitable for users with different priority levels in the same area. For example, in a commercial complex, both enterprises and home users can access the enterprise network to the virtual OLT system. The home user is connected to the virtual OLT system 2, and the two virtual OLT systems belong to one carrier. In this scenario, the ports under the same board are allowed to belong to different virtual OLT systems, and the virtual OLT system. The physical resources can also be bound one by one according to the port granularity.
  • the third mode is based on the ONU, that is, the optical network unit ONUs on the OLT device allocated by each virtual OLT system in different virtual OLT systems are different; this method can implement different virtual OLTs with different user scores under one PON interface.
  • the division of the system is suitable for different levels of users in the same building. For example, there are both enterprises and households in the commercial and residential buildings. When wiring, the ONTs in the same area are divided into the same port. This method is more flexible than the above two methods.
  • Method 4 Based on the service flow mode, that is, the service flow corresponding to each virtual OLT system in multiple virtual OLT systems is different. In this way, different service flows in the same ONT belong to different virtual OLT systems. This method is suitable for different operators in the same home or enterprise. For example, video services use one carrier. However, the voice service uses another operator's scenario and is managed by a virtual flow OLT system based on the service flow, which can effectively reduce the repeated investment and construction at the end access level, and provide customers with more flexible choices.
  • the present application can actually provide physical object binding to any virtual OLT system.
  • mode 1 to mode 4 the granularity of the partition is finer and finer, but the isolation capability is relatively weak. It can be flexibly selected according to the needs of the scene.
  • the virtual OLT is divided into four different dimensions, such as the service board, the port, the ONU, and the service flow.
  • the physical object can be flexibly allocated to the virtual OLT system.
  • a complete virtual OLT is formed, that is, the function of a complete OLT device is also obtained, which is equivalent to dividing one OLT device into multiple available.
  • the OLT device solves the problem that the existing technology cannot provide a complete isolation scheme for the configuration interface, service data and system resources on the existing hardware.
  • the embodiment of the present application implements the function of virtual multiple logical devices of one physical device based on the network that has been deployed, without changing the network topology and the structure of the communication device itself, and the functions provided by the virtual OLT device after using the virtual function.
  • the customer's application experience and service delivery remain unchanged, and can also bring the following beneficial effects:
  • the OLT can be divided into several different virtual OLTs to provide lease services for multiple operators, providing independent service delivery and system maintenance for each virtual OLT device.
  • the interface can even provide differentiated service features and customized specifications, thus achieving efficient use of a physical device, effectively reducing the infrastructure and operating costs of operators.
  • Virtualized network deployment can be performed according to different types of users, providing different levels of security control and bandwidth control for enterprise users, common users, and leased users, and even providing different service packages for different users. Users can switch between carriers without performing hardware installation operations.
  • the virtual system resource reallocation function can be used to implement port number change, which effectively reduces network operation and maintenance costs.
  • the equipment provider can perform equipment operation and maintenance management in a unified manner, quickly solve the problems encountered during the operation of the equipment, and implement the subdivision of operation and maintenance and service delivery functions, thereby effectively reducing operation and maintenance costs.
  • FIG. 6 is a schematic flowchart of another virtual method for an optical line terminal OLT device in the embodiment of the present application, and another optical line terminal in the embodiment of the present application will be described below with reference to FIG. 6 to the OLT device side.
  • the OLT device virtual method is described in detail. More specifically, the executor of the embodiment of the present application may be the main control unit in the OLT device mentioned above, and the method includes but is not limited to the following steps S601 to S608.
  • Step S601 Create a plurality of virtual OLT systems on the optical line terminal OLT device.
  • Step S602 Determine system resources of the multiple virtual OLT systems according to a preset rule, where the system resources include physical resources and logical resources, where physical resources of each virtual OLT system of the multiple virtual OLT systems And logical resources are not the same.
  • step S601 to step S602 can refer to step S501 to step S502 in the foregoing embodiment of FIG. 5.
  • Step S603 Create a corresponding forwarding domain FD for each of the plurality of virtual OLT systems.
  • the virtual OLT system includes a plurality of virtual local area network VLANs, and the corresponding FDs of any two of the plurality of OLT virtual systems are different.
  • the entire OLT device corresponds to one forwarding domain, and the packet forwarding is isolated according to the FD. Therefore, all data packets share all ports on the entire OLT device, and data isolation cannot be achieved.
  • a corresponding forwarding domain is created for all VLANs in all virtual OLT systems, so that data between different virtual OLT systems can be isolated, and FDs of different VLANs corresponding to the same virtual OLT system are not The same, so the intensity of data isolation is more detailed, and it is more beneficial to meet different businesses. Different needs.
  • the multiple virtual OLT systems include a third virtual OLT system and a fourth virtual OLT system; the VLAN ID set corresponding to the third virtual OLT system corresponds to the fourth virtual OLT system.
  • the intersection between the set of VLAN IDs is not an empty set, and the set of VLAN IDs includes the VLAN IDs of all VLANs in the corresponding OLT system.
  • the VLAN IDs of the VLANs corresponding to the entire OLT device must be different, but in the present application, multiple virtual OLT devices are created on the same OLT device, and The OLT devices are isolated from each other. Therefore, the VLAN IDs of the corresponding VLANs of different virtual OLT devices may be the same. As a result, the VLAN resources of different virtual OLT devices can be repeatedly configured without affecting each other.
  • Step S604 Create a forwarding entry for the FD, where the forwarding entry includes a MAC address table and/or a routing table.
  • the FD is specifically represented by the forwarding domain within the forwarding range corresponding to the MAC address table and/or the routing table included in the corresponding forwarding entry.
  • Step S605 Receive a request sent by the first virtual OLT system to operate the second virtual OLT system; the at least one common OLT system includes a first virtual OLT system and a second virtual OLT system.
  • the OLT device may learn that the first virtual OLT system needs to perform a traversal operation on the second virtual OLT system.
  • the application scenario may be that a fault occurs in the second virtual OLT system, and the proxy operation needs to be performed by the first virtual OLT system.
  • Step S606 Determine whether the first virtual OLT system satisfies the preset operation authority.
  • the OLT device needs to perform identity verification on the first virtual OLT system that needs to perform the traversal operation, determine whether it has operation authority, and avoid other hacker attacks.
  • Step S607 If yes, perform the target operation of the first virtual OLT system for the second virtual OLT system by using the management OLT system.
  • the management OLT system has the authority to manage and control the normal OLT. Therefore, the operation of the second virtual OLT system by the first virtual OLT system needs to be performed by the management OLT.
  • users can ensure independent management, and can also use existing common OLT pairs in some special cases, such as global debugging, when managing users to coordinate problems with ordinary users.
  • Other common OLTs are managed, so it is necessary to obtain authorization to manage the OLT in advance.
  • traversal management is allowed in two cases: for example, the root user manages other common users (the normal OLT is assumed to be OLT1), or the authorized ordinary users manage other ordinary users.
  • OLT1 the normal OLT is assumed to be OLT1
  • OLT1 the authorized ordinary users manage other ordinary users.
  • the root user After OLT1 is authenticated, the root user has the traversal permission, allowing the root user to manage OLT1;
  • OLT1 will connect the management agent to the management OLT (assumed to be OLT0). All operations in OLT0 are directly transmitted to OLT1, and the operation log is recorded in OLT0 to facilitate subsequent positioning.
  • the root user sends a revocation traversal operation request, and OLT1 interrupts the connection proxy.
  • the virtual OLT system is managed through the traversal operation, which facilitates management users to assist the virtual operator in service configuration or problem location.
  • the embodiments of the present application not only retain the beneficial effects of the embodiment corresponding to FIG. 5, but also provide a complete data and resource isolation scheme in different virtual OLT systems, thereby achieving new addition without adding hardware devices.
  • the isolation effect of the hardware device realizes hardware sharing and the software is completely isolated. Further, the traversing operation can also be used to realize the problem positioning and assistance processing of the management user to the ordinary user.
  • the following describes the method and principle for creating and managing a system based on a virtual OLT in a specific application scenario by taking two different virtual OLT implementations in the system as an example.
  • the OLT device can create a virtual OLT system.
  • the virtual OLT system is divided into two types of systems:
  • OLT0 Only one management OLT (hereinafter referred to as OLT0), OLT0 can pre-configure other common OLTs, allocate resources of OLT, etc. Users of OLT0 can observe the status of all common OLTs globally, and OLT0 is responsible for the basic equipment operators. Management and maintenance. The resources of the management OLT can be allocated to other OLTs. After the allocation, the resources belonging to itself are reduced accordingly.
  • Ordinary OLT You can configure multiple services. You can configure services for each OLT. Each user can manage and query its own resources. You can configure services based on these resources. The normal OLT is maintained by the secondary operator.
  • the specific application scenario of the method for creating and managing the system based on the virtual OLT may include the following processes:
  • the virtual system OLT1 is added to the OLT0.
  • the system automatically creates an OLT ID and automatically allocates the basic hardware resource space of the system, including independent alarms, configuration data files, and operation logs. Log storage space, independent business process. And add an administrative user for OLT1, an IP address used for management.
  • the management user allocates hardware resources to the OLT1, and the allocated resource objects include a chassis, a board, a port, an ONU, a service flow, and the like, and establish a correspondence table between the OLT and the physical resource. Before the allocation, you need to check whether the hardware resources of the system are sufficient. If the hardware resources are insufficient, the OLT fails to be created. In order to support the service flexibly, the physical resource object can be allowed to be bound in different ways according to the scenario.
  • the resource objects described above can be assigned to any OLT according to the needs, and the specific allocation mode and suitable The scene is as follows:
  • a new TOPO relationship is generated on the network management system, which does not affect the management of the original OLT device.
  • the alarm, log, and data functions of the OLT system are managed and synchronized by the new OLT system.
  • the management interface is isolated, and this user can be given to the customer, and the customer can configure and manage the OLT1 independently.
  • the OLT1's own management user configures the service, creates an independent forwarding domain FD (Forwarding Domain) in the configuration process, and sends forwarding domain information to the forwarding chip to implement forwarding resource isolation between different OLTs.
  • FD Forwarding Domain
  • Forwarding resources include: independent VLANs and MAC entries, and independent routing entries. By dividing a unified FD, normalization of forwarding domain partitioning can be achieved, and packet isolation can be implemented from a logical level.
  • Step 1 When the OLT is added, the physical object is allocated to the OLT.
  • the system automatically binds the relationship between the physical resource object and the OLT automatically. For details, refer to the following table:
  • Own OLT Object type Physical resource object OLT1 board 0 box 1 slot OLT1 port 0 frame 2 slot 1 port OLT1 ONT 0 frame 2 slot 2 port ONT 10 OLT2 board 0 box 5 slots OLT2 port 0 frame 6 slot 1 port OLT2 ONT 0 frame 6 slot 2 port ONT 10
  • Step 2 In the process of configuring a VLAN, create a separate FD based on the OLT and the VLAN ID, and bind the mapping between the VLAN and the FD to establish an independent forwarding entry for each FD.
  • the reference numerals of the labels or VLAN IDs of the forwarding domain FD in this application are only exemplary, and are used to distinguish between each other and are not used for limitation.
  • the forwarding domains of VLAN 100 and VLAN 101 included in the OLT1 system are both FD1.
  • the forwarding domain corresponding to VLAN 100 is FD11
  • the forwarding domain corresponding to VLAN 101 is FD12.
  • FD11 and FD12 belong to the same forwarding domain FD1.
  • the corresponding VLAN 100 and VLAN 101 in OLT2 are no longer. Narration. Please refer to the following table for details:
  • OLT VLAN ID Message lookup forwarding domain OLT1 VLAN 100 FD11 OLT1 VLAN 101 FD12 OLT2 VLAN 100 FD21 OLT2 VLAN 101 FD22
  • the VLANs between different OLTs can be repeatedly configured.
  • the corresponding forwarding domain of the VLAN 100 in the OLT1 is FD11, and correspondingly in the OLT2.
  • the forwarding domain is FD21.
  • the management of the corresponding relationship can be used to completely isolate the forwarding domain between different OLTs. Users of different OLTs can be configured with the same VLAN ID. The service configurations do not affect each other.
  • Step 3 In the process of configuring the service flow, specify the VLAN to which the service flow belongs. Therefore, any service flow can find a unique VLAN ID.
  • the ingress port of the packet In the process of packet uplink, the ingress port of the packet can be learned through the chip. Information can uniquely identify an FD.
  • FIG. 7 is a schematic diagram of packet forwarding according to an embodiment of the present disclosure, where OLT1 corresponds to forwarding domain FD1, FD1 corresponds to ports P1, P3, and P4; OLT2 corresponds to FD2, FD2 corresponds to P2, P5, and P6; The matching ports of the unit are P11 and P21; the ingress ports of the user service unit are P31, P41, P51 and P61.
  • the forwarding port of the packet data Msg 11 is P1 in the FD1, and the OLT1 forwards the Msg 11 to the P1 port in the FD1. If the forwarding port of the Msg 12 is ambiguous, that is, the port matching fails, the Msg 12 is Broadcasting is performed in the corresponding FD1, that is, in the P1, P3, and P4 ports. The same applies to OLT2, and details are not described herein. Please refer to the following table for details:
  • the packets of OLT1 and OLT2 regardless of forwarding or broadcast, do not have any intersection, so they are completely isolated, and the behavior of the packets is consistent with the independent OLT forwarding.
  • the lookup table processing mode of the downlink packet is the same as the uplink packet.
  • FIG. 8 is a schematic structural diagram of an optical line terminal OLT device according to an embodiment of the present disclosure.
  • the optical line terminal OLT device may include a processing unit 101, and detailed descriptions of the respective units are as follows.
  • the processing unit 101 is configured to create multiple virtual OLT systems on the optical line terminal OLT device.
  • the processing unit 101 is further configured to separately determine system resources of the multiple virtual OLT systems according to a preset rule, where the system resources include physical resources and logical resources, where each of the multiple virtual OLT systems The physical and logical resources of a virtual OLT system are different.
  • the preset rule includes:
  • the service boards on the OLT device allocated by each of the plurality of virtual OLT systems are different; or
  • the ports on the OLT device allocated by each of the plurality of virtual OLT systems are different; or
  • the optical network unit ONU on the OLT device allocated by each of the plurality of virtual OLT systems is different; or
  • Each of the plurality of virtual OLT systems has a different service flow corresponding to the virtual OLT system.
  • the plurality of virtual OLT systems include a management OLT system for operating OLT services, and at least one normal OLT system, wherein the management OLT system is configured to supervise the common OLT system. And running the processing OLT service or for supervising the ordinary OLT system.
  • the device further includes a receiving unit 102; the at least one general OLT system includes a first virtual OLT system and a second virtual OLT system; and the processing unit 101 is further configured to:
  • the target operation of the first virtual OLT system for the second virtual OLT system is performed by the management OLT system.
  • the virtual OLT system includes a plurality of virtual local area network VLANs; the processing unit 101 is further configured to:
  • a corresponding forwarding domain FD is created for each of the plurality of virtual OLT systems, wherein the corresponding FDs of any two of the plurality of OLT virtual systems are different.
  • the plurality of virtual OLT systems include a third virtual OLT system and a fourth virtual OLT system;
  • the intersection between the VLAN ID set corresponding to the third virtual OLT system and the VLAN ID set corresponding to the fourth virtual OLT system is not an empty set, and the VLAN ID set includes all VLANs in the corresponding OLT system. VLAN ID.
  • processing unit 101 is further configured to:
  • a forwarding entry is created for the FD, where the forwarding entry includes a MAC address table and/or a routing table.
  • the logic resource includes at least one of an application process, a virtual machine VM, a thread, a network management, an alarm, a log, a configuration file, a media access control MAC address, an IP address, a service flow, a VLAN, and a VLAN layer interface.
  • the physical resource includes at least one of a chassis, a slot, a port, an optical network terminal ONT, a central processing unit CPU, and a memory.
  • FIG. 9 is a schematic structural diagram of another optical line terminal OLT device according to an embodiment of the present disclosure.
  • the optical line terminal OLT device 20 includes a processor 201, a memory 202, and a transceiver 203.
  • the processor 201, the memory 202, and the transceiver 203 can be connected by a bus or other means.
  • the network device 20 may further include a network interface 204 and a power module 205.
  • the processor 201 can be a central processing unit (CPU), a general purpose processor, a digital signal processor (DSP), an application specific integrated circuit (ASIC), a field programmable gate array (FPGA) or other programmable logic device, and a transistor logic. Device, hardware component or any combination thereof. It is possible to implement or carry out the various illustrative logical blocks, modules and circuits described in connection with the present disclosure.
  • the processor may also be a combination of computing functions, such as one or more microprocessor combinations, a combination of a DSP and a microprocessor, and the like.
  • the memory 202 is used to store instructions.
  • the memory 202 can be a read-only memory (English: Read-Only Memory, ROM) or a random access memory (English: Random Access Memory, RAM).
  • the memory 202 is configured to store a session connection establishment program code.
  • the transceiver 203 is for transmitting and receiving signals. Used to communicate with other network devices, such as receiving or transmitting data with other base stations or security gateways.
  • Network interface 204 is used by network device 20 for data communication with other devices.
  • the network interface 204 can be a wired interface or a wireless interface, and the network device is communicably connected to other network devices, such as terminal devices, base stations, servers, security gateways, etc., through a wired or wireless network.
  • the power module 205 is used to power various modules of the network device 20.
  • the processor 201 is configured to call an instruction stored in the memory 202 to perform the following operations:
  • system resources of the plurality of virtual OLT systems Determining system resources of the plurality of virtual OLT systems according to a preset rule, where the system resources include physical resources and logical resources, wherein physical resources and logical resources of each of the plurality of virtual OLT systems They are all different.
  • the preset rule includes:
  • the service boards on the OLT device allocated by each of the plurality of virtual OLT systems are different; or
  • the optical network unit ONU on the OLT device allocated by each of the plurality of virtual OLT systems is different; or
  • Each of the plurality of virtual OLT systems has a different service flow corresponding to the virtual OLT system.
  • the plurality of virtual OLT systems include a management OLT system for operating OLT services, and at least one normal OLT system, wherein the management OLT system is configured to supervise the common OLT system. And running the processing OLT service or for supervising the ordinary OLT system.
  • the at least one general OLT system includes a first virtual OLT system and a second virtual OLT system; the processor 201 is further configured to:
  • the target operation of the first virtual OLT system for the second virtual OLT system is performed by the management OLT system.
  • the virtual OLT system includes a plurality of virtual local area network VLANs; the processor 0000 is further configured to:
  • a corresponding forwarding domain FD is created for each of the plurality of virtual OLT systems, wherein the corresponding FDs of any two of the plurality of OLT virtual systems are different.
  • the plurality of virtual OLT systems include a third virtual OLT system and a fourth virtual OLT system;
  • the intersection between the VLAN ID set corresponding to the third virtual OLT system and the VLAN ID set corresponding to the fourth virtual OLT system is not an empty set, and the VLAN ID set includes a VLAN ID of all VLANs in the corresponding OLT system. .
  • processor 201 is further configured to:
  • a forwarding entry is created for the FD, where the forwarding entry includes a MAC address table and/or a routing table.
  • the logic resource includes at least one of an application process, a virtual machine VM, a thread, a network management, an alarm, a log, a configuration file, a media access control MAC address, an IP address, a service flow, a VLAN, and a VLAN layer interface.
  • the physical resource includes at least one of a chassis, a slot, a port, an optical network terminal ONT, a central processing unit CPU, and a memory.
  • the embodiment of the present application further provides a computer storage medium, wherein the computer storage medium may store a program, where the program includes some or all of the steps of the virtual method of the optical line terminal OLT device described in the foregoing method embodiments. .
  • embodiments of the present application can be provided as a method, apparatus (device), or computer program product.
  • the present application can take the form of an entirely hardware embodiment, an entirely software embodiment, or an embodiment in combination of software and hardware.
  • the application can take the form of a computer program product embodied on one or more computer-usable storage media (including but not limited to disk storage, CD-ROM, optical storage, etc.) including computer usable program code.
  • the computer program is stored/distributed in a suitable medium, provided with other hardware or as part of the hardware, or in other distributed forms, such as over the Internet or other wired or wireless telecommunication systems.
  • the computer program instructions can also be stored in a computer readable memory that can direct a computer or other programmable data processing device to operate in a particular manner, such that the instructions stored in the computer readable memory produce an article of manufacture comprising the instruction device.
  • the apparatus implements the functions specified in one or more blocks of a flow or a flow and/or block diagram of the flowchart.
  • These computer program instructions can also be loaded onto a computer or other programmable data processing device such that a series of operational steps are performed on a computer or other programmable device to produce computer-implemented processing for execution on a computer or other programmable device.
  • the instructions provide steps for implementing the functions specified in one or more of the flow or in a block or blocks of a flow diagram.

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Abstract

本申请实施例公开了一种光线路终端OLT设备虚拟方法及相关设备，其中的方法可包括：在光线路终端OLT设备上创建多个虚拟OLT系统；按照预设规则分别确定所述多个虚拟OLT系统的系统资源，所述系统资源包括物理资源和逻辑资源，其中，所述多个虚拟OLT系统中的每一个虚拟OLT系统的物理资源和逻辑资源均不相同。采用本申请实施例可以解决现有技术中无法利用已有的OLT设备的硬件布局条件同时满足多种业务的传输需求的技术问题。

Description

一种光线路终端OLT设备虚拟方法及相关设备 技术领域
本申请涉及光通信技术领域，尤其涉及一种光线路终端OLT设备虚拟方法及相关设备。
背景技术
随着高清视频、虚拟现实、云计算等新业务的迅猛发展，用户对带宽的要求也日益提高，在此需求推动之下，传统的铜缆接入技术已经很难适应高带宽接入的需求，基于光纤的接入技术具有高带宽、远距离传输能力强、保密性好、抗干扰能力强等优点，能适应目前和未来业务发展对带宽的需求，成为接入网的主要实现技术。
光线路终端(Optical Line Terminal，OLT)，是基于光纤的光接入网的核心部件，相当于传统通信网中的交换机或路由器，同时也是一个多业务提供平台。一般放置在局端，提供面向用户的无源光纤网络的光纤接口。它主要实现的功能是：一方面将承载各种业务的信号在局端进行汇聚，按照一定的信号格式送入接入网络以便向终端用户传输，另一方面将来自终端用户的信号按照业务类型分别送入各种业务网中。
目前，OLT设备通常需要承载着成千上万的用户的业务，而这些用户可能包括普通用户、银行用户、企业用户、政府用户等等，不同用户的需求也不尽相同，例如，银行用户可能对数据传输的安全性要求较高，企业用户可能对数据传输的快捷性要求较高等，然而，在一台OLT设备上通常无法同时满足多种业务的不同需求，或者无法灵活满足多种业务需求的变化，这给OLT设备的业务处理、数据转发、管理控制等带来了巨大挑战。
发明内容
本申请实施例所要解决的技术问题在于，提供一种光线路终端OLT设备虚拟方法及相关设备，解决了现有技术中无法利用已有的OLT设备的硬件布局条件同时满足多种业务的传输需求的技术问题。
第一方面，本申请实施例提供了一种光线路终端OLT设备虚拟方法，可包括：
在光线路终端OLT设备上创建多个虚拟OLT系统；按照预设规则分别确定所述多个虚拟OLT系统的系统资源，所述系统资源包括物理资源和逻辑资源，其中，所述多个虚拟OLT系统中的每一个虚拟OLT系统的物理资源和逻辑资源均不相同。
结合第一方面，在第一种可能的实现方式中，所述预设规则包括：所述多个虚拟OLT系统中的每一个虚拟OLT系统分配得到的所述OLT设备上的业务板不同；或者所述多个虚拟OLT系统中的每一个虚拟OLT系统分配得到的所述OLT设备上的端口不同；或者所述多个虚拟OLT系统中的每一个虚拟OLT系统分配得到的所述OLT设备上的光网络单元ONU不同；或者所述多个虚拟OLT系统中的每一个虚拟OLT系统对应的业务流不同。
结合第一方面或者第一方面的第一种可能的实现方式，在第二种可能的实现方式中，所述多个虚拟OLT系统中包括一个管理OLT系统和至少一个普通OLT系统，其中，所述普通OLT系统用于运行处理OLT业务，所述管理OLT系统用于监管所述普通OLT系统和 运行处理OLT业务或者用于监管所述普通OLT系统。
结合第一方面的第二种可能的实现方式，在第三种可能的实现方式中，所述至少一个普通OLT系统包括第一虚拟OLT系统和第二虚拟OLT系统；所述方法还包括：接收第一虚拟OLT系统发送的操作所述第二虚拟OLT系统的请求；判断所述第一虚拟OLT系统是否满足预设操作权限；若是，通过所述管理OLT系统执行所述第一虚拟OLT系统针对所述第二虚拟OLT系统的目标操作。
结合第一方面或者第一方面的上述任一种可能的实现方式，在第四种可能的实现方式中，所述虚拟OLT系统中包括多个虚拟局域网VLAN；所述方法还包括：分别为所述多个虚拟OLT系统中的每一个VLAN创建对应的转发域FD，其中,所述多个OLT虚拟系统中的任意两个所述VLAN之间对应的FD不同。
结合第一方面的第四种可能的实现方式，在第五种可能的实现方式中，所述多个虚拟OLT系统包括第三虚拟OLT系统和第四虚拟OLT系统；所述第三虚拟OLT系统对应的VLAN ID集合和所述第四虚拟OLT系统对应的VLAN ID集合之间的交集不是空集，所述VLAN ID集合包括对应的OLT系统中的所有VLAN的VLAN ID。
结合第一方面的第五种可能的实现方式，在第六种可能的实现方式中，所述方法还包括：为所述FD创建转发表项，所述转发表项包括MAC地址表和/或路由表。
结合第一方面或者第一方面的上述任一种可能的实现方式，在第七种可能的实现方式中，所述逻辑资源包括应用进程、虚拟机VM、线程、网络管理、告警、日志、配置文件、媒体访问控制MAC地址、IP地址、业务流、VLAN和VLAN三层接口中的至少一个。
结合第一方面或者第一方面的上述任一种可能的实现方式，在第八种可能的实现方式中，所述物理资源包括机框、槽位、端口、光网络终端ONT、中央处理器CPU和内存中的至少一个。
第二方面，本申请实施例提供了一种光线路终端OLT设备，可包括：
处理单元，用于在光线路终端OLT设备上创建多个虚拟OLT系统；
所述处理单元，还用于按照预设规则分别确定所述多个虚拟OLT系统的系统资源，所述系统资源包括物理资源和逻辑资源，其中，所述多个虚拟OLT系统中的每一个虚拟OLT系统的物理资源和逻辑资源均不相同。
结合第二方面，在第一种可能的实现方式中，所述预设规则包括：所述多个虚拟OLT系统中的每一个虚拟OLT系统分配得到的所述OLT设备上的业务板不同；或者所述多个虚拟OLT系统中的每一个虚拟OLT系统分配得到的所述OLT设备上的端口不同；或者所述多个虚拟OLT系统中的每一个虚拟OLT系统分配得到的所述OLT设备上的光网络单元ONU不同；或者所述多个虚拟OLT系统中的每一个虚拟OLT系统对应的业务流不同。
结合第二方面或者第二方面的第一种可能的实现方式，在第二种可能的实现方式中，所述多个虚拟OLT系统中包括一个管理OLT系统和至少一个普通OLT系统，其中，所述普通OLT系统用于运行处理OLT业务，所述管理OLT系统用于监管所述普通OLT系统和运行处理OLT业务或者用于监管所述普通OLT系统。
结合第二方面的第二种可能的实现方式，在第三种可能的实现方式中，所述设备还包 括接收单元；所述至少一个普通OLT系统包括第一虚拟OLT系统和第二虚拟OLT系统；所述处理单元还用于：通过所述接收单元接收第一虚拟OLT系统发送的操作所述第二虚拟OLT系统的请求；判断所述第一虚拟OLT系统是否满足预设操作权限；若是，通过所述管理OLT系统执行所述第一虚拟OLT系统针对所述第二虚拟OLT系统的目标操作。
结合第二方面或者第二方面的上述任一种可能的实现方式，在第四种可能的实现方式中，所述虚拟OLT系统中包括多个虚拟局域网VLAN；所述处理单元还用于：分别为所述多个虚拟OLT系统中的每一个VLAN创建对应的转发域FD，其中,所述多个OLT虚拟系统中的任意两个所述VLAN之间对应的FD不同。
结合第二方面的第四种可能的实现方式，在第五种可能的实现方式中，所述多个虚拟OLT系统包括第三虚拟OLT系统和第四虚拟OLT系统；所述第三虚拟OLT系统对应的VLAN ID集合和所述第四虚拟OLT系统对应的VLAN ID集合之间的交集不是空集，所述VLAN ID集合包括对应的OLT系统中的所有VLAN的VLAN ID。
结合第二方面的第五种可能的实现方式，在第六种可能的实现方式中，所述处理单元还用于：为所述FD创建转发表项，所述转发表项包括MAC地址表和/或路由表。
结合第二方面或者第二方面的上述任一种可能的实现方式，在第七种可能的实现方式中，所述逻辑资源包括应用进程、虚拟机VM、线程、网络管理、告警、日志、配置文件、媒体访问控制MAC地址、IP地址、业务流、VLAN和VLAN三层接口中的至少一个。
结合第二方面或者第二方面的上述任一种可能的实现方式，在第八种可能的实现方式中，所述物理资源包括机框、槽位、端口、光网络终端ONT、中央处理器CPU和内存中的至少一个。
第三方面，本申请提供一种光线路终端OLT设备，该OLT设备具有实现上述光线路终端OLT设备虚拟方法实施例中方法的功能。该功能可以通过硬件实现，也可以通过硬件执行相应的软件实现。该硬件或软件包括一个或多个与上述功能相对应的模块。
第四方面，本申请提供一种光线路终端OLT设备，该OLT设备中包括处理器，处理器被配置为支持该OLT设备执行第一方面提供的一种光线路终端OLT设备虚拟方法中相应的功能。该OLT设备还可以包括存储器，存储器用于与处理器耦合，其保存该OLT设备必要的程序指令和数据。该OLT设备还可以包括通信接口，用于该OLT设备与其他设备或通信网络通信。
第五方面，本申请提供一种计算机存储介质，用于储存为上述第四方面提供的光线路终端OLT设备所用的计算机软件指令，其包含用于执行上述方面所设计的程序。
第六方面，本申请实施例提供了一种计算机程序，该计算机程序包括指令，当该计算机程序被计算机执行时，使得计算机可以执行上述第一方面中任意一项的光线路终端OLT设备虚拟方法中的流程。
实施本申请实施例，具有如下有益效果：
本申请实施例，通过在光线路终端OLT设备上创建多个虚拟OLT系统，并按照预设规则分别确定多个虚拟OLT系统的系统资源，该系统资源包括物理资源和逻辑资源，其中，所述多个虚拟OLT系统中的每一个虚拟OLT系统的物理资源和逻辑资源均不相同。即本申请中通过基于已经部署的网络，在不改变网络拓扑和通信设备本身结构的条件下，实现一台OLT物理设备虚拟多台OLT逻辑设备的功能，采用虚拟功能后，虚拟OLT设备对外提供的功能与之前保持一致，客户的应用体验和业务发放都保持不变。并且，由于不同虚拟OLT系统之间分配所得的物理资源和逻辑资源均不相同，所以各个虚拟OLT系统之间是相互隔离的，因此不同客户或运营商的业务可以按照不同的要求进行隔离传输，解决了现有技术中无法利用已有的OLT设备的硬件布局条件同时满足多种业务的传输需求的技术问题。
附图说明
为了更清楚地说明本申请实施例或背景技术中的技术方案，下面将对本申请实施例或背景技术中所需要使用的附图进行说明。
图1是本申请实施例提供的光通信系统架构示意图；
图2是本申请实施例提供的一种OLT设备的功能结构示意图；
图3是本申请实施例提供的一种OLT设备解决方案的架构图；
图4是本申请实施例提供的另一种OLT设备解决方案的架构图；
图5是本申请实施例提供的一种光线路终端OLT设备虚拟方法的流程示意图；
图6是本申请实施例提供的另一种光线路终端OLT设备虚拟方法的流程示意图；
图7是本申请实施例提供的一种光线路终端OLT设备的报文转发示意图；
图8是本申请实施例提供的一种光线路终端OLT设备的结构示意图；
图9是本申请实施例提供的另一种光线路终端OLT设备的结构示意图。
具体实施方式
下面将结合本申请实施例中的附图，对本申请实施例进行描述。
本申请的说明书和权利要求书及所述附图中的术语“第一”、“第二”、“第三”和“第四”等是用于区别不同对象，而不是用于描述特定顺序。此外，术语“包括”和“具有”以及它们任何变形，意图在于覆盖不排他的包含。例如包含了一系列步骤或单元的过程、方法、系统、产品或设备没有限定于已列出的步骤或单元，而是可选地还包括没有列出的步骤或单元，或可选地还包括对于这些过程、方法、产品或设备固有的其它步骤或单元。
在本文中提及“实施例”意味着，结合实施例描述的特定特征、结构或特性可以包含在本申请的至少一个实施例中。在说明书中的各个位置出现该短语并不一定均是指相同的实施例，也不是与其它实施例互斥的独立的或备选的实施例。本领域技术人员显式地和隐式地理解的是，本文所描述的实施例可以与其它实施例相结合。
以下，对本申请中的部分用语进行解释说明，以便于本领域技术人员理解。
1)、光网络单元(Optical Network Unit，ONU)，是光网络中的用户端设备，放置在用户端，与OLT配合使用，实现以太网二层、三层功能，为用户提供语音、数据和多媒体业 务。它主要实现的功能是：选择接收OLT发送的数据数响应OLT发出的管理命令，并作相应的调整。对用户的以太网数据进行缓存，并在OLT分配的发送窗口中向上行方向发送。其他用户管理功能。
2)、媒体接入控制(Media Access Control,MAC)媒体访问控制子层协议。该协议位于开放系统互连(Open System Interconnect，OSI)七层协议中数据链路层的下半部分，主要负责控制与连接物理层的物理介质。在发送数据的时候，MAC协议可以事先判断是否可以发送数据，如果可以发送将给数据加上一些控制信息，最终将数据以及控制信息以规定的格式发送到物理层；在接收数据的时候，MAC协议首先判断输入的信息并是否发生传输错误，如果没有错误，则去掉控制信息发送至LLC层。
3)、虚拟局域网(Virtual Local Area Network,VLAN)是将一个物理的局域网LAN在逻辑上划分成多个广播域的通信技术。VLAN是一组逻辑上的设备和用户，这些设备和用户并不受物理位置的限制，可以根据功能、部门及应用等因素将它们组织起来，相互之间的通信就好像它们在同一个网段中一样，由此得名虚拟局域网。VLAN工作在OSI参考模型的第2层和第3层，一个VLAN就是一个广播域，VLAN之间的通信是通过第3层的路由器来完成的。在计算机网络中，一个二层网络可以被划分为多个不同的广播域，一个广播域对应了一个特定的用户组，默认情况下这些不同的广播域是相互隔离的。不同的广播域之间想要通信，需要通过一个或多个路由器。这样的一个广播域就称为VLAN。
4)、虚拟系统(Virtual System,VS)，将一台通信设备从逻辑上划分成多个系统，每一个逻辑系统就是一个虚拟系统，具有与原系统相同一致的功能，并且对资源进行隔离，各个虚拟系统共享硬件资源，但是保持相互独立。
下面结合附图对本申请的实施例进行描述。
为了便于理解本申请实施例，下面先对本申请实施例所基于的光通信系统架构进行描述。图1是本申请实施例提供的光通信系统架构示意图，请参阅图1，该光通信系统架构中主要包括：用户侧、网络侧以及连接该用户侧和网络侧的OLT设备，OLT设备将用户侧的设备和网络侧的路由设备连接起来起到汇聚和接入作用，用户侧可以接入多种设备，例如个人电脑PC、基站，ONU等。网络侧则包括路由设备和由互联网接入的各类服务器如DHCP服务器或者云服务器等。
其中，OLT设备内部由不同类别的单板提供网络侧和用户侧接口，如图2所示，图2是本申请实施例提供的OLT设备的功能结构示意图，按照OLT设备内部各单元在用户侧和网络侧承担的角色和作用，OLT设备可以划分以下四个功能单元：
主控单元:属于系统控制管理单元，完成对整个OLT设备的配置、管理和控制，同时实现简单路由协议等功能，并且可能承担业务处理、交换、汇聚；
用户业务单元：提供不同类型用户业务接入的单元，实现用户业务接入、处理、转发等。
上行接口单元：用于提供系统上行(有时候也可以做级联)的接口的单元，即网络侧接入，用于提供系统上行或级联的接口。
其它单元：图2中未示出，包括环境监控、通用接口等，用于满足运维或者特殊业务 应用场景。
上述四个大类中，其中前三类为通信设备的核心。在不同设备上，这三类单元(或者其中两类)可能集中在同一块单板上，也可能完全分布在不同单板上，这里为了更清晰的阐述，直接抽象成三个独立个体来阐述，本申请对此不作具体限定。需要说明的是，而本申请中所提供的一种光线路终端OLT设备虚拟方法主要是对应上述的主控单元中的，即本申请中的方法实施例主要是由主控单元进行执行，并配合其它几个功能单元进行完成实现。
首先，需要对本申请解决现有技术问题的总体思路进行分析。现有技术中，若要让OLT设备同时满足不同业务的需求，在一种解决方案中可通过重新部署OLT设备来实现，如图3所示，图3是本申请实施例提供的一种OLT设备解决方案的架构图，通过新增OLT设备来连接不同的业务(如基站业务)，从而利用不同的OLT设备分别满足不同业务的需求。但是，因为OLT设备与客户之间的连线属于物理连线，如果客户需要从一个运营商切换到另外一个运营商，则需要重新调整连线，网络灵活性不足。同时还需要考虑到施工因素，例如，一般运营商的网络都需要通过规划、订货、施工建设等阶段，在施工过程中需要考虑布线，库房容积，供电等多种因素，实施起来难度非常大，因此重新部署OLT设备的投资成本高，建设周期长，还会导致资源利用率低，基础设施存在重复建设等问题。
在另一种解决方案中可通过使用VLAN对不同用户的业务进行隔离，从而满足不同业务的需求。如图4所示，图4是本申请实施例提供的另一种OLT设备解决方案的架构图。通过将不同业务的以太网ETH报文，配置为不同的VLAN字段，便可以实现业务数据的有效隔离，如将基站业务配置为VLAN 1，个人电脑PC业务单独配置为VLAN 2等。但此种方案的配置管理界面还是在同一界面，因此无法很好支持虚拟运营商租赁网络的场景，即只能实现数据隔离，无法实现资源和配置界面的隔离。而若不同的运营商需要使用同一物理网络，则必须由OLT设备运营商提供业务配置服务和业务发放服务，操作难度大。另外，若需要对运营商数据的备份和迁移，则可能存在无法很好的区分不同运营商的配置数据的问题。并且，由于OLT系统资源隔离不足，不同级别的运营商虽然在业务数据上进行了很好的隔离，但是在系统资源层面并没有很好的隔离，一旦部分用户出现攻击导致系统异常，可能所有用户都会受到影响。
基于上述分析和阐述，可以明确本申请中真正需要解决的技术问题为如何利用已有的OLT设备的硬件布局条件同时满足多种业务的传输需求。下面结合本申请中提供的光线路终端OLT设备虚拟方法的实施例，针对本申请中提出的上述技术问题进行分析和解决。
参见图5，图5是本申请实施例中的一种光线路终端OLT设备虚拟方法的流程示意图，下面将结合附图5至从OLT设备侧对本申请实施例中的光线路终端OLT设备虚拟方法进行详细描述。更具体地，本申请实施例的执行主体可以为上述所提及的OLT设备中的主控单元，该方法包括但不限于如下步骤S501-步骤S502。
步骤S501：在光线路终端OLT设备上创建多个虚拟OLT系统。
具体地，在一个OLT设备上创建多个虚拟OLT系统，即将同一个物理OLT设备划分为多个虚拟的OLT系统，使得数据经过OLT时就已经产生分离。
在一种可能的实现方式中，所述多个虚拟OLT系统中包括一个管理OLT系统和至少一 个普通OLT系统，其中，所述普通OLT系统用于运行处理OLT业务，所述管理OLT系统用于监管所述普通OLT系统和运行处理OLT业务或者用于监管所述普通OLT系统。例如OLT设备可被分解为两类虚拟机，管理虚拟机和普通虚拟机，其中管理虚拟机只有一个，有权进行系统资源的调配，而普通虚拟机只进行资源的使用和业务配置，普通虚拟机个数可变，可以由管理虚拟机根据业务需要进行任意创建。
步骤S502：按照预设规则分别确定所述多个虚拟OLT系统的系统资源。
具体地，系统资源包括物理资源和逻辑资源，其中，所述多个虚拟OLT系统中的每一个虚拟OLT系统的物理资源和逻辑资源均不相同，即不同虚拟OLT系统之间的物理资源和逻辑资源完全是隔离开来的。且多个虚拟OLT系统的资源由所述OLT设备的总资源划分得到。
可以理解的是，为创建的多个虚拟OLT系统分配资源，可以是同时对多个虚拟OLT系统进行分配，也可以是对先后创建的虚拟OLT系统进行先后分配。例如，可能是预先一次性将OLT设备进行统一分配，也可以是按需求即有需求时才进行分配。而分配的资源的来源都来源于OLT设备上的所有物理资源和逻辑资源。其中，逻辑资源包括应用进程、虚拟机VM、线程、网络管理、告警、日志、配置文件、媒体访问控制MAC地址、IP地址、业务流、VLAN和VLAN三层接口等。物理资源可以包括机框、槽位、端口、光网络终端ONT、中央处理器CPU和内存等。
其中，关于分配系统资源的具体规则可以包括以下四种方式：
方式一：按照业务板进行划分，即多个虚拟OLT系统中的每一个虚拟OLT系统分配得到的所述OLT设备上的业务板不同。这种方式适合把一部分设备出租给一个虚拟运营商的场景，就是每个虚拟运营商分配几个业务板，业务板下面所述的端口、ONT、业务流等对象，都属于对应的普通虚拟OLT系统。
方式二：按照端口划分：即多个虚拟OLT系统中的每一个虚拟OLT系统分配得到的所述OLT设备上的端口不同。将不同端口划分到不同的虚拟OLT系统，这种方式适合在同一地区存在不同优先级别用户的场景，比如在商业综合体中既有企业又有家庭用户，可以把企业网接入虚拟OLT系统1，把家庭用户接入虚拟OLT系统2，而这两个虚拟OLT系统都属于一个运营商，在这种场景下，允许同一个单板下的端口分属于不同的虚拟OLT系统，而虚拟OLT系统的物理资源，也可以按照端口为粒度一个一个进行绑定。
方式三：基于ONU划分，即多个虚拟OLT系统中的每一个虚拟OLT系统分配得到的所述OLT设备上的光网络单元ONU不同；这种方式可以实现一个PON口下不同用户分数不同虚拟OLT系统的划分，适合在同一楼楼宇存在不同级别用户的方式，比如商住楼中既有企业，又有家庭住户，而在布线的时候，已经将同一区域的ONT划分到同一个端口下的场景，相对于上面两种方式，这种方式更为灵活。
方式四：基于业务流的方式，即多个虚拟OLT系统中的每一个虚拟OLT系统对应的业务流不同。这种方式可以实现同一个ONT中不同的业务流分属于不同的虚拟OLT系统，这种方式适合在同一家庭中或者企业中，存在不同运营商服务的情况，看比如视频业务使用一个运营商，但是语音业务使用另外一个运营商的场景，使用基于业务流的虚拟OLT系统来管理，可以有效减少末端接入层面的重复投资和建设，为客户提供更为灵活的选择。
根据上述四种方式的描述可以看出，本申请实际上可以提供物理对象与任何虚拟OLT系统的绑定，从方式一到方式四，划分粒度越来越细，但是隔离能力相对有所减弱，可以根据场景的需要灵活选择。按照业务板、端口、ONU、业务流4个不同维度进行虚拟OLT的划分方案，可以实现物理对象灵活划分给需要的虚拟OLT系统。
可以理解的是，每个虚拟OLT系统得到分配的系统资源后，形成了一个完整的虚拟OLT，即也拥有一个完整的OLT设备的功能，相当于将一个OLT设备通过划分得到了多个可使用的OLT设备，解决了现有技术中无法在现有硬件上为配置界面、业务数据和系统资源提供彻底的隔离方案。
本申请实施例基于已经部署的网络，在不改变网络拓扑和通信设备本身结构的条件下，实现一台物理设备虚拟多台逻辑设备的功能，采用虚拟功能后，虚拟OLT设备对外提供的功能与之前保持一致，客户的应用体验和业务发放都保持不变，还可以带来如下有益效果：
(1)设备供应商建设一台OLT设备后，可以将OLT划分成几个不同的虚拟OLT，从而为多个运营商提供租赁服务，为每一台虚拟OLT设备提供独立的业务发放和系统维护界面，甚至可以提供差异化的业务特性和定制规格，从而实现了一台物理设备高效使用，有效降低运营商的基础建设成本和运营成本。
(2)可以根据不用的用户类型进行虚拟化网络部署，为企业用户、普通用户和租赁用户提供不同级别的安全控制和带宽控制，甚至可以为不同的用户提供不同的业务套餐方案。用户在运营商之间进行切换，无需进行硬件安装操作，使用虚拟系统资源重新分配功能就可以实现携号转网变更，从而有效降低网络运维成本。
(3)设备提供商可以统一进行设备运维管理，快速解决设备运行过程中遇到的问题，实现运维和业务发放功能的细分，从而有效降低运维成本。
参见图6，图6是本申请实施例中的另一种光线路终端OLT设备虚拟方法的流程示意图，下面将结合附图6至从OLT设备侧对本申请实施例中的另一种光线路终端OLT设备虚拟方法进行详细描述。更具体地，本申请实施例的执行主体可以为上述所提及的OLT设备中的主控单元，该方法包括但不限于如下步骤S601-步骤S608。
步骤S601：在光线路终端OLT设备上创建多个虚拟OLT系统。
步骤S602：按照预设规则分别确定所述多个虚拟OLT系统的系统资源，所述系统资源包括物理资源和逻辑资源，其中，所述多个虚拟OLT系统中的每一个虚拟OLT系统的物理资源和逻辑资源均不相同。
具体地，步骤S601至步骤S602可参考上述图5实施例中的步骤S501至步骤S502。
步骤S603：分别为所述多个虚拟OLT系统中的每一个VLAN创建对应的转发域FD。
具体地，所述虚拟OLT系统中包括多个虚拟局域网VLAN，且所述多个OLT虚拟系统中的任意两个所述VLAN之间对应的FD不同。现有技术中整个OLT设备对应一个转发域，且报文转发按照FD进行隔离，因此所有数据报文共享该整个OLT设备上的所有端口，无法实现数据上的隔离。本申请中为所有的虚拟OLT系统中的所有VLAN均创建一个对应的转发域，使得不同虚拟OLT系统之间的数据得以隔离，且由于同一个虚拟OLT系统中对应的不同的VLAN的FD也不一样，因此数据隔离的力度更细，更有益于满足不同业务之 间的不同需求。
在一种可能的实现方式中，所述多个虚拟OLT系统包括第三虚拟OLT系统和第四虚拟OLT系统；所述第三虚拟OLT系统对应的VLAN ID集合和所述第四虚拟OLT系统对应的VLAN ID集合之间的交集不是空集，所述VLAN ID集合包括对应的OLT系统中的所有VLAN的VLAN ID。在现有技术中由于OLT设备只对应一个转发域，因此该整个OLT设备对应的VLAN中的VLAN ID必须不同，但是在本申请中，由于同一个OLT设备上创建有多个虚拟OLT设备，且OLT设备之间相互隔离，因此不同虚拟OLT设备之间对应的VLAN的VLAN ID有可能是一样的，如此一来，不同虚拟OLT设备之间的VLAN资源便可以重复配置，互不影响。
步骤S604：为所述FD创建转发表项，所述转发表项包括MAC地址表和/或路由表。
具体地，FD具体表现为转发域在其对应的转发表项中所包括的MAC地址表和/或路由表所对应的转发范围内。
步骤S605：接收第一虚拟OLT系统发送的操作所述第二虚拟OLT系统的请求；所述至少一个普通OLT系统包括第一虚拟OLT系统和第二虚拟OLT系统。
具体地，OLT设备接收到其中一个虚拟OLT系统发送的请求操作其它虚拟OLT系统如第二虚拟OLT系统的请求之后，可以获知该第一虚拟OLT系统需要对第二虚拟OLT系统进行穿越操作。应用场景可以是第二虚拟OLT系统中出现了故障，需要通过第一虚拟OLT系统进行代理操作。
步骤S606：判断所述第一虚拟OLT系统是否满足预设操作权限。
具体地，OLT设备需要先对需要进行穿越操作的第一虚拟OLT系统进行身份验证，判断其是否具有操作权限，避免其它黑客攻击等。
步骤S607：若是，通过所述管理OLT系统执行所述第一虚拟OLT系统针对所述第二虚拟OLT系统的目标操作。
具体地，OLT设备中由于只有管理OLT系统才有权限管理控制普通OLT，因此，需要通过管理OLT来代理执行第一虚拟OLT系统需要对第二虚拟OLT系统进行的操作。通过本步骤的实行可以使得用户之间在保证独立管理的同时，还可以在一些特殊的情况下，比如全局调试，管理用户配合普通用户进行问题定位的时候，也可以利用已有的普通OLT对其他普通OLT进行管理，因此需要提前得到管理OLT的授权。
在实际应用场景中，允许两种情况下进行穿越管理：例如，root用户对其他普通用户(普通OLT假设为OLT1)进行管理，或者已经得到授权的普通用户对其它普通用户进行管理。下面举例说明利用root用户实现对OLT1的管理过程：
1、通过root用户登陆设备，发起穿越OLT1请求；
2、OLT1经过鉴定，root用户具有穿越权限，允许root用户对OLT1进行管理；
3、OLT1将连接管理代理到管理OLT(假设为OLT0),在OLT0的所有操作，都直接传输给OLT1，并在OLT0中记录操作日志，方便后续定位。
4、操作结束后，通过root用户发送撤销穿越操作请求，OLT1中断连接代理。
通过穿越操作进行虚拟OLT系统的管理，方便管理用户协助虚拟运营商进行业务配置或者问题定位。
本申请实施例，不仅保留了图5对应的实施例的有益效果，还在不同的虚拟OLT系统中，提供彻底的数据和资源隔离方案，从而在不新增硬件设备的情况下，达到新增硬件设备的隔离效果，实现硬件共享，软件完全隔离。进一步地，在需要的时候也可以通过穿越操作，实现管理用户对普通用户的问题定位协助处理。
下面，本申请以在系统中创建两个不同的虚拟OLT实施方式为例，来描述在具体应用场景中，创建并基于虚拟OLT进行系统管理的方法和原理。在系统启动后之初，OLT设备只存在一个逻辑系统，此后OLT设备可以进行虚拟OLT系统的创建，虚拟OLT系统划分为两类系统：
管理OLT：管理OLT只有一个(以下称为OLT0)，OLT0可以对其他普通OLT进行预配置，分配OLT的资源等，OLT0的用户可以全局观察到所有普通OLT的状态，OLT0由基础设备运营商负责管理维护。管理OLT的资源，可以分配给其他OLT，分配之后，属于自身的资源相应减少。
普通OLT：可以配置多个，主要负责业务的配置管理，每个普通OLT可以单独配置业务，其用户只能管理和查询属于自己的资源，可以基于这些资源进行业务配置。普通OLT由二级运营商负责维护。
本申请的创建并基于虚拟OLT进行系统管理的方法的具体应用场景可包括如下流程：
(1)在进行OLT虚拟化配置之前，OLT运行正常；
(2)通过管理OLT用户登陆，在OLT0中新增虚拟系统OLT1，在配置过程中，系统自动创建OLT ID，自动分配系统运行的基础硬件资源空间，包括独立的告警、配置数据文件、操作log日志存储空间，独立的业务进程。并为OLT1新增一个管理用户，一个管理使用的IP地址。
(3)通过管理用户为OLT1分配硬件资源，分配的资源对象包括机框、单板、端口、ONU、业务流等，建立OLT和物理资源的对应关系表。在分配之前需要先检查系统的硬件资源是否足够，如果硬件资源不足，则提示创建OLT失败。为了灵活支撑业务，可以允许物理资源对象有多种绑定方式，根据场景需要按照不同的粒度进行划分，上面所述的资源对象，可以根据需要归属到任意的OLT中，具体分配方式和适合的场景如下：
(4)通过管理OLT0的用户，为OLT1配置系统规格。为了实现业务的转发，系统还存在一些规格表项，比如系统用户数、支持的IP地址个数等，这些系统规格实际上也对应着系统的物理资源。可以通过命令，将一些规格表项配置给OLT1，这些规格表项包括：
Figure PCTCN2017075246-appb-000001
Figure PCTCN2017075246-appb-000002
在还未不配置普通OLT的情况下，所有规格都属于OLT0，部分配置给OLT1后，剩余的规格相应减少，而系统的总规格数量不变。
(5)通过普通OLT1的自己的管理用户登陆OLT1(IP地址已经在第一步由OLT0创建)，这时可以对自身的IP地址进行修改，并自动从MAC地址池分配系统的桥MAC地址。这时候系统就拥有了新的身份，可以使用这个地址到网管系统进行注册，之后从网管系统上观察到是一个全新的OLT，能看到的物理资源和业务配置，都是属于OLT1的这一部分。
OLT1注册后，在网管系统上会生成一个新的TOPO关系，完全不影响原来的OLT设备的管理，OLT系统的告警、日志、数据等功能，都是以新OLT系统来进行管理和同步，从而在管理界面实现了隔离，将这个用户给客户，客户就可以对OLT1进行独立的配置和管理。
(6)通过OLT1自己的管理用户，为OLT1创建其他的用户，实现管理界面隔离。不同普通OLT之间的管理，通过进程进行隔离，每个进程有独立的数据库，日志，告警模块以及调试信息维护模块，从而实现每个用户管理相互独立，互不影响。
(7)通过OLT1自己的管理用户配置业务，在配置业务过程创建独立转发域FD(Forwarding Domain)，并向转发芯片下发转发域信息，实现不同OLT间的转发资源隔离。
转发资源包括：独立的VLAN和MAC表项、独立的路由表项。通过划分统一的FD，可以实现转发域划分的归一化，并从逻辑层面实现报文隔离。
为了实现转发域隔离，系统需要做以下几步操作：
步骤一：在新增OLT时为OLT分配物理对象，系统自动自动绑定物理资源对象和OLT的关系，具体请参照下表：
所属OLT 对象类型 物理资源对象
OLT1 板 0框1槽位
OLT1 端口 0框2槽位1端口
OLT1 ONT 0框2槽位2端口ONT 10
OLT2 板 0框5槽位
OLT2 端口 0框6槽位1端口
OLT2 ONT 0框6槽位2端口ONT 10
步骤二：在配置VLAN的过程中，根据OLT和VLAN ID创建单独的FD，并绑定VLAN和FD之间的对应关系，为每个FD建立独立的转发表项，需要说明的是。本申请中关于转发域FD的标号或VLAN ID等的标号的表示只是实例性说明，用以区分彼此并不用于限定，比如，OLT1系统所包括的VLAN 100和VLAN 101的转发域均为FD1，为了区分彼此所以 表示为VLAN 100对应的转发域为FD11，VLAN 101对应的转发域为FD12，实质上FD11和FD12属于同一转发域FD1，同理，OLT2中对应的VLAN 100和VLAN 101也是如此，此处不再赘述。具体请参照下表：
OLT VLAN ID 报文查找转发域
OLT1 VLAN 100 FD11
OLT1 VLAN 101 FD12
OLT2 VLAN 100 FD21
OLT2 VLAN 101 FD22
可以理解的是，由于VLAN和FD的关系是基于OLT建立的，因此不同OLT之间的VLAN是可以重复配置的，如上表，VLAN 100在OLT1中对应的转发域为FD11，而在OLT2中对应的转发域为FD21，通过这个对应关系的管理，可以实现不同OLT之间转发域的彻底隔离，同时属于不同OLT的用户，可以配置相同的VLAN ID，业务配置之间相互不影响.
步骤三：配置业务流过程中，指定业务流所属的VLAN，因此任何一条业务流都可找到唯一的VLAN ID，在报文上行过程中还可以通过芯片了解报文的入端口，通过这两个信息就可以唯一的确定一个FD。
系统根据VLAN和MAC查找对应FD的转发表，就可以找到报文的出端口，如果找不到出端口，则在FD内部进行广播。请参照图7，图7是本申请实施例提供的报文转发示意图，其中，OLT1对应转发域FD1，FD1对应端口P1、P3和P4；OLT2对应FD2，FD2对应P2、P5和P6；上行接口单元的匹配端口有P11和P21；用户业务单元的入端口有P31、P41、P51和P61。假设报文数据Msg 11的转发端口是FD1中的P1，则OLT1将该Msg 11转发至FD1中的P1端口，假设Msg 12的转发端口不明确，即端口匹配失败，则将该条Msg 12在对应的FD1中进行广播，即在P1、P3和P4端口中进行广播。OLT2同理，在此不再赘述。具体请参照下表：
Figure PCTCN2017075246-appb-000003
从上表中可以看出，OLT1和OLT2的报文，不管转发还是广播，都没有任何交集，因此得到了彻底的隔离，而报文的行为和独立OLT转发保持一致。下行报文的查表处理方式和上行报文一致。
(8)在业务配置过程中，根据用户所属的OLT，可以生成不同的数据库和配置文件，在用户备份和保存的时候，只操作本OLT的配置。重启系统也只重启本OLT相关的进程和表项，从而实现管理维护层面的隔离。
(9)运维人员在通过普通OLT用户只能看到本OLT的调试信息，而通过OLT0的 用户进行操作，则可以看到所有OLT的调试信息，这样既保证虚拟系统的客户可以自己定位业务类问题，而设备运营商则可以统一维护所有硬件和设备，从而提升整体维护效率。
本申请提供的上述具体实施例，从管理、控制、转发三个层面进行了区域划分，从而保障系统在不同的虚拟系统内部形成完整的管理和业务处理能力，而不同的虚拟系统之间互不影响，具有良好的隔离能力。
上述详细阐述了本申请实施例的方法，下面提供了本申请实施例的相关设备。
请参见图8，图8是本申请实施例提供的一种光线路终端OLT设备的结构示意图，该光线路终端OLT设备可以包括处理单元101，其中，各个单元的详细描述如下。
处理单元101，用于在光线路终端OLT设备上创建多个虚拟OLT系统；
所述处理单元101，还用于按照预设规则分别确定所述多个虚拟OLT系统的系统资源，所述系统资源包括物理资源和逻辑资源，其中，所述多个虚拟OLT系统中的每一个虚拟OLT系统的物理资源和逻辑资源均不相同。
具体地，所述预设规则包括：
所述多个虚拟OLT系统中的每一个虚拟OLT系统分配得到的所述OLT设备上的业务板不同；或者
所述多个虚拟OLT系统中的每一个虚拟OLT系统分配得到的所述OLT设备上的端口不同；或者
所述多个虚拟OLT系统中的每一个虚拟OLT系统分配得到的所述OLT设备上的光网络单元ONU不同；或者
所述多个虚拟OLT系统中的每一个虚拟OLT系统对应的业务流不同。
进一步地，所述多个虚拟OLT系统中包括一个管理OLT系统和至少一个普通OLT系统，其中，所述普通OLT系统用于运行处理OLT业务，所述管理OLT系统用于监管所述普通OLT系统和运行处理OLT业务或者用于监管所述普通OLT系统。
再进一步地，所述设备还包括接收单元102；所述至少一个普通OLT系统包括第一虚拟OLT系统和第二虚拟OLT系统；处理单元101还用于：
通过所述接收单元102接收第一虚拟OLT系统发送的操作所述第二虚拟OLT系统的请求；
判断所述第一虚拟OLT系统是否满足预设操作权限；
若是，通过所述管理OLT系统执行所述第一虚拟OLT系统针对所述第二虚拟OLT系统的目标操作。
再进一步地，所述虚拟OLT系统中包括多个虚拟局域网VLAN；所述处理单元101还用于：
分别为所述多个虚拟OLT系统中的每一个VLAN创建对应的转发域FD，其中,所述多个OLT虚拟系统中的任意两个所述VLAN之间对应的FD不同。
再进一步地，所述多个虚拟OLT系统包括第三虚拟OLT系统和第四虚拟OLT系统；
所述第三虚拟OLT系统对应的VLAN ID集合和所述第四虚拟OLT系统对应的VLAN ID集合之间的交集不是空集，所述VLAN ID集合包括对应的OLT系统中的所有VLAN的 VLAN ID。
再进一步地，处理单元101还用于：
为所述FD创建转发表项，所述转发表项包括MAC地址表和/或路由表。
再进一步地，所述逻辑资源包括应用进程、虚拟机VM、线程、网络管理、告警、日志、配置文件、媒体访问控制MAC地址、IP地址、业务流、VLAN和VLAN三层接口中的至少一个。
再进一步地，所述物理资源包括机框、槽位、端口、光网络终端ONT、中央处理器CPU和内存中的至少一个。
需要说明的是，本申请实施例中所描述的光线路终端OLT设备10中各功能模块的功能可参见上述图1至图7所示实施例中对应OLT设备的相关描述，此处不再赘述。
参见图9，图9是本申请实施例提供的另一种光线路终端OLT设备的结构示意图，光线路终端OLT设备20包括处理器201、存储器202和收发器203。其中处理器201、存储器202和收发器203可以通过总线或其他方式连接。
可选的，网络设备20还可以包括网络接口204和电源模块205。
其中，处理器201可以是中央处理器(CPU)，通用处理器、数字信号处理器(DSP)、专用集成电路(ASIC)，现场可编程门阵列(FPGA)或者其他可编程逻辑器件、晶体管逻辑器件，硬件部件或者其任意组合。其可以实现或执行结合本申请公开内容所描述的各种示例性的逻辑方框，模块和电路。所述处理器也可以是实现计算功能的组合，例如包含一个或多于一个微处理器组合，DSP和微处理器的组合等。
存储器202用于存储指令，具体实现中，存储器202可以采用只读存储器(英文：Read-Only Memory，简称：ROM)或随机存取存贮器(英文：Random Access Memory，简称：RAM)，在本申请实施例中，存储器202用于存储会话连接建立程序代码。
收发器203用于收发信号。用于和其它网络设备通信，例如和其它基站或者安全网关等进行数据的接收或发送。
网络接口204用于网络设备20与其他设备进行数据通信。该网络接口204可以为有线接口或无线接口，通过有线或无线网络将本网络设备与其它网络设备例如终端设备、基站、服务器、安全网关等进行通信连接。
电源模块205用于为网络设备20的各个模块供电。
处理器201用于调用存储器202中存储的指令来执行如下操作：
在光线路终端OLT设备上创建多个虚拟OLT系统；
按照预设规则分别确定所述多个虚拟OLT系统的系统资源，所述系统资源包括物理资源和逻辑资源，其中，所述多个虚拟OLT系统中的每一个虚拟OLT系统的物理资源和逻辑资源均不相同。
具体地，所述预设规则包括：
所述多个虚拟OLT系统中的每一个虚拟OLT系统分配得到的所述OLT设备上的业务板不同；或者
所述多个虚拟OLT系统中的每一个虚拟OLT系统分配得到的所述OLT设备上的端口 不同；或者
所述多个虚拟OLT系统中的每一个虚拟OLT系统分配得到的所述OLT设备上的光网络单元ONU不同；或者
所述多个虚拟OLT系统中的每一个虚拟OLT系统对应的业务流不同。
进一步地，所述多个虚拟OLT系统中包括一个管理OLT系统和至少一个普通OLT系统，其中，所述普通OLT系统用于运行处理OLT业务，所述管理OLT系统用于监管所述普通OLT系统和运行处理OLT业务或者用于监管所述普通OLT系统。
再进一步地，所述至少一个普通OLT系统包括第一虚拟OLT系统和第二虚拟OLT系统；处理器201还用于：
通过收发器203接收第一虚拟OLT系统发送的操作所述第二虚拟OLT系统的请求；
判断所述第一虚拟OLT系统是否满足预设操作权限；
若是，通过所述管理OLT系统执行所述第一虚拟OLT系统针对所述第二虚拟OLT系统的目标操作。
再进一步地，所述虚拟OLT系统中包括多个虚拟局域网VLAN；处理器0000还用于：
分别为所述多个虚拟OLT系统中的每一个VLAN创建对应的转发域FD，其中,所述多个OLT虚拟系统中的任意两个所述VLAN之间对应的FD不同。
再进一步地，所述多个虚拟OLT系统包括第三虚拟OLT系统和第四虚拟OLT系统；
所述第三虚拟OLT系统对应的VLAN ID集合和所述第四虚拟OLT系统对应的VLAN ID集合之间的交集不是空集，所述VLAN ID集合包括对应的OLT系统中的所有VLAN的VLAN ID。
再进一步地，处理器201还用于：
为所述FD创建转发表项，所述转发表项包括MAC地址表和/或路由表。
再进一步地，所述逻辑资源包括应用进程、虚拟机VM、线程、网络管理、告警、日志、配置文件、媒体访问控制MAC地址、IP地址、业务流、VLAN和VLAN三层接口中的至少一个。
再进一步地，所述物理资源包括机框、槽位、端口、光网络终端ONT、中央处理器CPU和内存中的至少一个。
需要说明的是，本申请实施例所描述的光线路终端OLT设备20中各功能模块的功能可参见上述图1至图7中所示实施例中对应的OLT设备的相关描述，此处不再赘述。
本申请实施例还提供一种计算机存储介质，其中，该计算机存储介质可存储有程序，该程序执行时包括上述方法实施例中记载的任何一种光线路终端OLT设备虚拟方法的部分或全部步骤。
尽管在此结合各实施例对本申请进行了描述，然而，在实施所要求保护的本申请过程中，本领域技术人员通过查看所述附图、公开内容、以及所附权利要求书，可理解并实现所述公开实施例的其他变化。在权利要求中，“包括”(comprising)一词不排除其他组成部分或步骤，“一”或“一个”不排除多个的情况。单个处理器或其他单元可以实现权利要求中列举的若干项功能。相互不同的从属权利要求中记载了某些措施，但这并不表示这些措施 不能组合起来产生良好的效果。
本领域技术人员应明白，本申请的实施例可提供为方法、装置(设备)、或计算机程序产品。因此，本申请可采用完全硬件实施例、完全软件实施例、或结合软件和硬件方面的实施例的形式。而且，本申请可采用在一个或多个其中包含有计算机可用程序代码的计算机可用存储介质(包括但不限于磁盘存储器、CD-ROM、光学存储器等)上实施的计算机程序产品的形式。计算机程序存储/分布在合适的介质中，与其它硬件一起提供或作为硬件的一部分，也可以采用其他分布形式，如通过Internet或其它有线或无线电信系统。
本申请是参照本申请实施例的方法、装置(设备)和计算机程序产品的流程图和/或方框图来描述的。应理解可由计算机程序指令实现流程图和/或方框图中的每一流程和/或方框、以及流程图和/或方框图中的流程和/或方框的结合。可提供这些计算机程序指令到通用计算机、专用计算机、嵌入式处理机或其他可编程数据处理设备的处理器以产生一个机器，使得通过计算机或其他可编程数据处理设备的处理器执行的指令产生用于实现在流程图一个流程或多个流程和/或方框图一个方框或多个方框中指定的功能的装置。
这些计算机程序指令也可存储在能引导计算机或其他可编程数据处理设备以特定方式工作的计算机可读存储器中，使得存储在该计算机可读存储器中的指令产生包括指令装置的制造品，该指令装置实现在流程图一个流程或多个流程和/或方框图一个方框或多个方框中指定的功能。
这些计算机程序指令也可装载到计算机或其他可编程数据处理设备上，使得在计算机或其他可编程设备上执行一系列操作步骤以产生计算机实现的处理，从而在计算机或其他可编程设备上执行的指令提供用于实现在流程图一个流程或多个流程和/或方框图一个方框或多个方框中指定的功能的步骤。
综上所述，尽管结合具体特征及其实施例对本申请进行了描述，显而易见的，在不脱离本申请的精神和范围的情况下，可对其进行各种修改和组合。相应地，本说明书和附图仅仅是所附权利要求所界定的本申请的示例性说明，且视为已覆盖本申请范围内的任意和所有修改、变化、组合或等同物。显然，本领域的技术人员可以对本申请进行各种改动和变型而不脱离本申请的精神和范围。这样，倘若本申请的这些修改和变型属于本申请权利要求及其等同技术的范围之内，则本申请也意图包含这些改动和变型在内。

Claims (18)

  1. 一种光线路终端OLT设备虚拟方法，其特征在于，包括：
    在光线路终端OLT设备上创建多个虚拟OLT系统；
    按照预设规则分别确定所述多个虚拟OLT系统的系统资源，所述系统资源包括物理资源和逻辑资源，其中，所述多个虚拟OLT系统中的每一个虚拟OLT系统的物理资源和逻辑资源均不相同。
  2. 如权利要求1所述的方法，其特征在于，所述预设规则包括：
    所述多个虚拟OLT系统中的每一个虚拟OLT系统分配得到的所述OLT设备上的业务板不同；或者
    所述多个虚拟OLT系统中的每一个虚拟OLT系统分配得到的所述OLT设备上的端口不同；或者
    所述多个虚拟OLT系统中的每一个虚拟OLT系统分配得到的所述OLT设备上的光网络单元ONU不同；或者
    所述多个虚拟OLT系统中的每一个虚拟OLT系统对应的业务流不同。
  3. 如权利要求1或2所述的方法，其特征在于，所述多个虚拟OLT系统中包括一个管理OLT系统和至少一个普通OLT系统，其中，所述普通OLT系统用于运行处理OLT业务，所述管理OLT系统用于监管所述普通OLT系统和运行处理OLT业务或者用于监管所述普通OLT系统。
  4. 如权利要求3所述的方法，其特征在于，所述至少一个普通OLT系统包括第一虚拟OLT系统和第二虚拟OLT系统；所述方法还包括：
    接收第一虚拟OLT系统发送的操作所述第二虚拟OLT系统的请求；
    判断所述第一虚拟OLT系统是否满足预设操作权限；
    若是，通过所述管理OLT系统执行所述第一虚拟OLT系统针对所述第二虚拟OLT系统的目标操作。
  5. 如权利要求1-4任意一项所述的方法，其特征在于，所述虚拟OLT系统中包括多个虚拟局域网VLAN；所述方法还包括：
    分别为所述多个虚拟OLT系统中的每一个VLAN创建对应的转发域FD，其中,所述多个OLT虚拟系统中的任意两个所述VLAN之间对应的FD不同。
  6. 如权利要求5所述的方法，其特征在于，所述多个虚拟OLT系统包括第三虚拟OLT系统和第四虚拟OLT系统；
    所述第三虚拟OLT系统对应的VLAN ID集合和所述第四虚拟OLT系统对应的VLAN  ID集合之间的交集不是空集，所述VLAN ID集合包括对应的OLT系统中的所有VLAN的VLAN ID。
  7. 如权利要求6所述的方法，其特征在于，所述方法还包括：
    为所述FD创建转发表项，所述转发表项包括MAC地址表和/或路由表。
  8. 如权利要求1-7任意一项所述的方法，其特征在于，所述逻辑资源包括应用进程、虚拟机VM、线程、网络管理、告警、日志、配置文件、媒体访问控制MAC地址、IP地址、业务流、VLAN和VLAN三层接口中的至少一个。
  9. 如权利要求1-8任意一项所述的方法，其特征在于，所述物理资源包括机框、槽位、端口、光网络终端ONT、中央处理器CPU和内存中的至少一个。
  10. 一种光线路终端OLT设备，其特征在于，包括：
    处理单元，用于在光线路终端OLT设备上创建多个虚拟OLT系统；
    所述处理单元，还用于按照预设规则分别确定所述多个虚拟OLT系统的系统资源，所述系统资源包括物理资源和逻辑资源，其中，所述多个虚拟OLT系统中的每一个虚拟OLT系统的物理资源和逻辑资源均不相同。
  11. 如权利要求10所述的设备，其特征在于，所述预设规则包括：
    所述多个虚拟OLT系统中的每一个虚拟OLT系统分配得到的所述OLT设备上的业务板不同；或者
    所述多个虚拟OLT系统中的每一个虚拟OLT系统分配得到的所述OLT设备上的端口不同；或者
    所述多个虚拟OLT系统中的每一个虚拟OLT系统分配得到的所述OLT设备上的光网络单元ONU不同；或者
    所述多个虚拟OLT系统中的每一个虚拟OLT系统对应的业务流不同。
  12. 如权利要求10或11所述的设备，其特征在于，所述多个虚拟OLT系统中包括一个管理OLT系统和至少一个普通OLT系统，其中，所述普通OLT系统用于运行处理OLT业务，所述管理OLT系统用于监管所述普通OLT系统和运行处理OLT业务或者用于监管所述普通OLT系统。
  13. 如权利要求12所述的设备，其特征在于，所述设备还包括接收单元；所述至少一个普通OLT系统包括第一虚拟OLT系统和第二虚拟OLT系统；所述处理单元还用于：
    通过所述接收单元接收第一虚拟OLT系统发送的操作所述第二虚拟OLT系统的请求；
    判断所述第一虚拟OLT系统是否满足预设操作权限；
    若是，通过所述管理OLT系统执行所述第一虚拟OLT系统针对所述第二虚拟OLT系 统的目标操作。
  14. 如权利要求10-13任意一项所述的设备，其特征在于，所述虚拟OLT系统中包括多个虚拟局域网VLAN；所述处理单元还用于：
    分别为所述多个虚拟OLT系统中的每一个VLAN创建对应的转发域FD，其中,所述多个OLT虚拟系统中的任意两个所述VLAN之间对应的FD不同。
  15. 如权利要求14所述的设备，其特征在于，所述多个虚拟OLT系统包括第三虚拟OLT系统和第四虚拟OLT系统；
    所述第三虚拟OLT系统对应的VLAN ID集合和所述第四虚拟OLT系统对应的VLAN ID集合之间的交集不是空集，所述VLAN ID集合包括对应的OLT系统中的所有VLAN的VLAN ID。
  16. 如权利要求15所述的设备，其特征在于，所述处理单元还用于：
    为所述FD创建转发表项，所述转发表项包括MAC地址表和/或路由表。
  17. 如权利要求10-16任意一项所述的设备，其特征在于，所述逻辑资源包括应用进程、虚拟机VM、线程、网络管理、告警、日志、配置文件、媒体访问控制MAC地址、IP地址、业务流、VLAN和VLAN三层接口中的至少一个。
  18. 如权利要求10-17任意一项所述的设备，其特征在于，所述物理资源包括机框、槽位、端口、光网络终端ONT、中央处理器CPU和内存中的至少一个。
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