CN107911158B - Service system based on virtual data plane and method for providing service - Google Patents
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Abstract
The invention relates to a service architecture based on a virtual data plane and a method for providing service, which can simultaneously support the parallel realization of a plurality of network function service chains on the same satellite network equipment and avoid the problem of multifunctional strategy combination; in each VDP, different customized intermediate service function modules can be combined and enabled through a standardized programming interface, so that the whole processing process of the network function service chain can be programmed and customized; each intermediate service function node corresponds to a first-level flow table, the format of each-level flow table is unified, and the problems of flow table applicability and unified description of different intermediate service function nodes are solved. Meanwhile, the deployment of the intermediate service function nodes can be flexibly arranged, so that the network function service has the capacity of flexible capacity expansion and reduction; the unified description method for the satellite network service fully considers the characteristic that the satellite system on-board processing capacity is limited, is concise and efficient, and has engineering realizability.
Description
Technical Field
The invention relates to a service architecture based on a virtual data plane and a method for providing services, belonging to the field of communication.
Background
Satellite systems are typically limited systems (weight, volume, power consumption, choice of devices, etc.) with long development cycles, high costs, and high risks. The diversified service application requirements and the rapidly evolving and developing technology lead the defects that the traditional satellite system lacks programmability, the functions are difficult to change in the life cycle and the services are difficult to arrange according to the requirements to be amplified again and again. To implement the function/service arrangement of the satellite network as required, a unified service description method is the basis.
The generic service description model in NGN provides only an abstract description model of a service and does not involve any specific implementation mechanism. The Web service description method mainly aims at Web services, has great difference with the function positioning of a satellite network and the main service types faced by the satellite network, and is difficult to apply. The service description method of the internet of things provides a set of formalized service description methods, but the machines are required to reach a certain intelligent level to be effectively executed, and the satellite network equipment is difficult to meet the corresponding processing capacity requirement. The SDN service description method is mainly suitable for a ground wired network, and the adopted distributed deployment mode is not suitable for a satellite network mainly based on a wireless link; the SDN has certain requirements on the intelligent processing level of the local controller, and has certain difficulty in the scene that the local controller is deployed on a satellite; the OpenFlow flow table adopted by the SDN bottom layer is mainly designed aiming at an IP network, a large number of autonomous systems exist in a satellite network at the same time, different special protocols are adopted, and the OpenFlow flow table design is not enough to meet the data forwarding requirements of different systems. The implementation of the NFV service description method must be aided by high-performance infrastructure hardware (high-performance servers, etc.) and powerful virtual infrastructure management platforms (Openstack, etc.). Satellite networks do not have such conditions for a considerable period of time in the future and are therefore not implementable.
How to realize multitask parallel processing on the basis of the existing satellite network equipment and provide processing capacity and processing efficiency is a technical problem to be solved urgently in the field.
Disclosure of Invention
The invention aims to overcome the defects of the prior art, provides a multi-service parallel service architecture based on VDP mapping and a satellite network service method adopting the VDP mapping service architecture, and realizes multi-task parallel processing.
The purpose of the invention is realized by the following technical scheme:
the utility model provides a multi-service parallel service architecture based on virtual data plane, which comprises a satellite/ground controller and satellite network equipment, wherein the satellite/ground controller maps the specific network service provided by the satellite network to a Virtual Data Plane (VDP), and generates and transmits the control information of the Virtual Data Plane (VDP) to the corresponding satellite network equipment; the satellite network equipment allocates resources for corresponding Virtual Data Planes (VDPs) according to the control information, the virtual data planes execute processing rules in the control information, and VDP processing units of the virtual data planes execute flow table combination to realize specific network services.
A method for providing satellite network service in parallel is provided, which comprises the following steps:
(1) the satellite/ground controller determines satellite network equipment providing network service;
(2) the satellite/ground controller generates a Virtual Data Plane (VDP) of the network service provided by the satellite network equipment and sends control information to the satellite network equipment;
(3) the satellite network device configures resources for the Virtual Data Plane (VDP) according to the control information, the virtual data plane executes processing rules in the control information, and the VDP processing unit of the virtual data plane executes flow table combination to realize specific network service.
Preferably, the control information includes resource configuration, processing rules and flow table combination; preferred said resource configurations include logic, storage, computation and I/O resources; preferably, the processing rule includes: port mapping rules, filtering rules, VDP mapping rules, domain extraction rules, classification rules, matching rules, and forwarding rules.
Preferably, the control information further includes VDP description information; the preferred VDP description information includes an identification number of the virtual data plane, a type of the corresponding network service, a capability description of the corresponding network service, an owner information of the corresponding network service, a resource configuration, an execution processing rule, a function arrangement generated for the virtual data plane, and a retrieval value of the VDP processing unit information.
Preferably, the different Virtual Data Planes (VDPs) are logically independent of each other and are functionally independently customized.
Preferably, the resource management module in the satellite network device completes the allocation of the resources required by the Virtual Data Plane (VDP) according to the issued resource configuration information; the port mapping module finishes the mapping from the physical port of the equipment to the internal logic port according to a port mapping rule issued by the controller; the input arbitration module finishes the validity check and the filtration of input data according to a filtration rule issued by the controller; the VDP mapping module determines a VDP processing unit into which data needs to enter according to a VDP mapping rule issued by the controller; the VDP processing unit realizes related service processing functions according to the flow table combination issued by the controller; the output scheduling module is responsible for scheduling and controlling the output data of the VDP processing units.
Preferably, the step (3) of allocating, by the satellite network device according to the control information, resources to the Virtual Data Plane (VDP) specifically includes: a resource management module in the satellite network equipment completes the allocation of resources required by a Virtual Data Plane (VDP) according to the issued resource configuration information; the port mapping module finishes the mapping from the physical port of the equipment to the internal logic port according to a port mapping rule issued by the controller; the input arbitration module finishes the validity check and the filtration of input data according to a filtration rule issued by the controller; the VDP mapping module determines a VDP processing unit into which data needs to enter according to a VDP mapping rule issued by the controller; the VDP processing unit realizes related service processing functions according to the flow table combination issued by the controller; the output scheduling module is responsible for scheduling and controlling the output data of the VDP processing units.
Preferably, after the control information is sent to the satellite network device, if the satellite network device detects that the resource configuration information is updated, corresponding resources are allocated to a newly added Virtual Data Plane (VDP) according to the resource configuration information; if the satellite network equipment updates the execution rule, adding a port mapping rule and an arbitration rule for a newly added Virtual Data Plane (VDP) according to the execution rule; and if the satellite network equipment detects that the function arrangement information is updated, generating a flow table combination corresponding to the Virtual Data Plane (VDP) in a resource pool allocated for the newly added VDP according to the function arrangement information.
Preferably, after the corresponding resources are allocated, the state information in the resource allocation library is updated; after the rule is added, the state information in the execution rule database is updated.
A network service method based on the multi-service parallel service architecture is provided, which comprises the following steps:
(1) determining a corresponding internal logic port of the satellite network equipment by a service data packet input from a physical port of the satellite network equipment through a port mapping module, and adding an internal frame header for the service data packet by the port mapping module, wherein the internal frame header comprises an input physical port number and corresponding internal logic port number information of the data packet;
(2) the input arbitration module checks validity and filtering rules, and if the checking fails, the input arbitration module directly discards the filter rules; if the check is passed, entering the step (3);
(3) the VDP mapping module determines a corresponding VDP processing unit to which the service data packet needs to be mapped according to the VDP mapping rule, and if the mapping is successful, the VDP processing unit number in the internal frame header is updated and the service data packet is sent to the corresponding VDP processing unit; if the mapping fails, directly discarding the service data packet and updating related state and statistical information; (ii) a
(4) Each stage of flow table comprises a domain extraction rule, a matching rule and a matching behavior, the VDP processing unit extracts data from an incoming service data packet according to the domain extraction rule, the data are matched according to the matching rule, if the matching is successful, the data are processed according to the matching behavior, and if the matching is failed, the service data packet is directly discarded; updating relevant state and statistical information;
(5) the output scheduling module uniformly queues the processed service datagrams output by different VDP processing units and schedules and outputs the service datagrams according to the priority; the output service data packet is submitted to an end user or forwarded to other satellite network equipment.
Compared with the prior art, the invention has the following advantages:
(1) the parallel service architecture and the service method of the multiple services based on VDP mapping are provided, so that the parallel realization of a plurality of network function service chains can be simultaneously supported on the same satellite network equipment, and the problem of multifunctional strategy combination is avoided; in each VDP, different customized intermediate service function modules can be combined and enabled through a standardized programming interface, so that the whole processing process of the network function service chain can be programmed and customized;
(2) the satellite network service architecture and the service method adopting the VDP mapping service architecture are provided, each intermediate service function node corresponds to a stage of flow table, the format of each stage of flow table is unified, and the problems of the applicability of the OpenFlow flow table and the unified description of different intermediate service function nodes are solved. Meanwhile, the deployment of the intermediate service function nodes can be flexibly arranged and can be freely moved, inserted or deleted according to the requirement, so that the network function service has the capacity of flexibly expanding and shrinking;
(3) the unified description method for the satellite network service fully considers the characteristic that the satellite system on-board processing capacity is limited, is concise and efficient, and has engineering realizability.
Drawings
FIG. 1 is a schematic diagram of a VDP mapping-based multi-service parallel service architecture according to the present invention;
FIG. 2 is a schematic diagram of the components and flow of the satellite network service implementation device of the present invention
Fig. 3 is a schematic diagram of a VDP service description method based on a multi-stage flow table according to the present invention.
Detailed Description
The principles of the present invention involve three aspects of the problem: (1) the distributed deployment mode of the functional service chain adopted in the ground network is not suitable for a satellite network which mainly comprises a wireless link, and how to deploy and implement the network functional service chain in the satellite network; (2) the arrangement of service functions in the ground network has high requirements on the intelligent processing level of a local controller, and how to realize the unified description and flexible arrangement of the service functions aiming at a satellite system which is mainly based on a transmission and exchange function and severely limited in processing capacity; (3) the OpenFlow standard adopted in the ground SDN mainly aims at IP services and how to design a generalized flow table format aiming at diversified service requirements of various autonomous heterogeneous satellite systems.
The satellite network plays more roles as an infrastructure of a space section of the space-ground integrated information network, mainly plays a role in transmitting and exchanging various service data, and does not need to adopt a distributed deployment mode of a functional service chain of a ground network and has no realizability in a short time. With the rapid development of satellite processing technology of satellite systems, more and more satellite network devices have the programmable/software definition capability, and a foundation is provided for the on-demand deployment of functional service chains. Aiming at the task and capability characteristics of the satellite network, the patent firstly introduces the concept of a Virtual Data Plane (VDP), and the resources occupied by each VDP are independently divided, and the functions are arranged and customized according to needs. Secondly, a satellite network function service chain VDP mapping mechanism is provided, one network function service chain is mapped to one independent VDP of a specific satellite network device, and all functions of the function service chain are realized based on the VDP.
The functionality of a network functional service chain is typically implemented by the serial execution of a plurality of intermediate service functional nodes. In the satellite network, the satellite/ground controller generally implements the arrangement and customization of service functions, and the satellite routing switching equipment implements the forwarding and switching functions of service data according to the matching forwarding rule issued by the controller. According to the above features, the patent proposes a function service chain description method based on multi-level flow tables, which splits a network function service chain into a set of serially executed intermediate service function nodes, each intermediate service function node mapping a first-level flow table in the VDP corresponding to the function service chain; the satellite/ground controller adopts a unified flow table format suitable for a satellite system to uniformly describe the functions of each intermediate service function node, and realizes complete function description of a network function service chain through combination of multiple stages of flow tables. The satellite route switching equipment completes forwarding and switching of various service data according to the distributed VDP resource configuration, the mapping rule, the multi-level flow table, the execution path of the multi-level flow table and the like.
The satellite network service implementation method adopting the VDP mapping service architecture comprises the following steps:
(1) the satellite/ground controller determines satellite network equipment providing network service; the controller may be located on the satellite or in the ground based network device.
(2) The satellite/ground controller completes the mapping processing from a specific satellite network service to a satellite network device VDP, and generates the description of the VDP and the resource allocation and execution rule of the satellite network device corresponding to the VDP;
the satellite/ground controller divides a specific satellite network service function required to be realized by the VDP into a group of serially executed intermediate service function links, each intermediate service function link is described by adopting a flow table with a uniform format, and a complete description of the network service function is generated by sequentially combining a plurality of flow tables;
and the satellite/ground controller transmits the generated resource configuration, execution rule and flow table combination of the satellite network equipment to the satellite network equipment through a standardized programming interface provided by the satellite network equipment.
(3) A Resource Management module (Resource Management) in the satellite network equipment is responsible for completing the allocation of resources required by each VDP according to the Resource allocation issued by the controller; the Port mapping module (Port Map) is responsible for completing the mapping from the physical Port of the device to the internal logical Port according to a Port mapping rule issued by the controller; the input arbitration module (InputArbiter) is responsible for finishing the validity check and the filtration of the input data according to the filtration rule issued by the controller; a VDP mapping module (VDP Map) is responsible for determining a VDP processing unit into which data needs to enter according to a VDP mapping rule issued by the controller; the VDP processing Unit (VDP Process Unit) is responsible for realizing related service processing functions according to the flow table combination issued by the controller; the output scheduling module is responsible for scheduling and controlling the output data of the VDP processing units.
Referring to fig. 1, fig. 1 is a schematic diagram of a VDP mapping-based multi-service parallel service architecture according to the present invention.
The implementation method of the multi-service parallel service architecture based on VDP mapping is as follows:
1) introducing a Virtual Data Plane (VDP) concept, mapping a specific network service in a satellite network to one VDP in a satellite network device by a satellite/ground controller, describing the VDP by adopting a uniform description method, and realizing a service function required by the specific network service based on the VDP. Different VDPs are logically independent from each other, and the same satellite network equipment can simultaneously support the parallel execution of a plurality of VDPs;
2) the satellite/ground controller generates VDP resource configuration, execution rules and function arrangement/flow table combination information corresponding to the different network services according to the types, capacity requirements and resource requirements of the different network services;
3) the satellite/ground controller formulates and issues resource configuration information through a standardized programming interface provided by the satellite network equipment, and the satellite network equipment allocates independent resources (logic, storage, calculation and I/O resources) for each VDP according to the resource configuration information;
4) the satellite/ground controller formulates execution rules (data field extraction rules, filtering rules, classification rules, matching rules and forwarding rules) for issuing each VDP through a standardized programming interface provided by the satellite network equipment, and the satellite network equipment related module executes the issued different rules;
5) the satellite/ground controller generates function arrangement/flow table combination information corresponding to the specific network service and sends the function arrangement/flow table combination information through a standardized programming interface provided by the satellite network equipment, and the satellite network equipment realizes related service processing functions according to the sent flow table combination.
Referring to fig. 2, fig. 2 is a schematic diagram illustrating the components and flow of the satellite network service implementation apparatus of the present invention.
The satellite network service realizing device mainly comprises a satellite/ground controller and satellite network equipment, wherein the satellite/ground controller and the satellite network equipment are communicated through a standardized programming interface provided by the satellite network equipment.
In one embodiment, the mapping of satellite network services to VDPs and the implementation of their business functions mainly involve five phases of work:
the satellite/ground controller determines a satellite and specific satellite network equipment for providing service for the satellite/ground controller according to the type and capability requirement of the network service;
the satellite/ground controller generates VDP description information of the satellite network device for providing the network service, and the description information mainly comprises: the VDP identification number, the type of the network service corresponding to the VDP, the capability description of the network service corresponding to the VDP, the owner information of the network service corresponding to the VDP, and the retrieval value of the resource configuration/execution rule/function arrangement/VDP processing unit information generated for the VDP;
the satellite/ground controller calculates the resource requirement required by the network service to obtain a resource allocation result and simultaneously generates resource configuration information of the VDP corresponding to the satellite network equipment;
the satellite/ground controller firstly splits the network service into a group of serially executed intermediate service function links according to the function requirements of the network service, each intermediate service function link is described by adopting a flow table with a uniform format, and simultaneously determines the combination sequence of a plurality of flow tables to generate function arrangement information used by the VDP processing unit; secondly, generating an execution rule corresponding to the network service, which mainly comprises the following steps: the method comprises the steps of port mapping rules from a physical port to a logical port, input arbitration rules including data validity check and data filtering, mapping rules from service data to a specific VDP processing unit, domain extraction rules, classification rules, matching rules and forwarding rules of a multi-stage flow table in the VDP processing unit;
and the satellite/ground controller transmits the generated VDP description information, VDP resource configuration information, VDP execution rules and VDP function arrangement information to the satellite network equipment through a standardized programming interface provided by the satellite network equipment.
Stage ②, the control information is validated.
Firstly, validity check is carried out on VDP description information, VDP resource configuration information, VDP execution rules and VDP function arrangement information which are transmitted by a satellite/ground controller by a satellite network equipment standardized programming interface processing module, if the data is valid, a local database maintained by satellite network equipment is officially updated, and a control information effective response is sent to the satellite/ground controller; and if the data is invalid, sending a control information enabling failure response to the satellite/ground controller.
Stage ③, resource allocation.
And the satellite network equipment resource management module immediately checks the updating content once detecting that the information of the VDP resource configuration library is updated, and if the information that the new VDP resource configuration information is added is checked, allocates corresponding resources for the newly added VDP according to the configuration information and updates the state information in the VDP resource configuration library.
At stage ④, the data preprocessing function is active.
Once the satellite network equipment port mapping module detects that the information of the VDP execution rule database is updated, the updating content is immediately checked, if the new information of the VDP execution rule is checked to be added, the port mapping rule is added to the newly added VDP according to the execution rule, and meanwhile, the state information in the VDP execution rule database is updated;
the satellite network equipment input arbitration module immediately checks the updated content once detecting that the information of the VDP execution rule database is updated, and if new VDP execution rule information is added, the satellite network equipment input arbitration module adds an input arbitration rule for the newly added VDP according to the execution rule and updates state information in the VDP execution rule database at the same time;
once the satellite network equipment VDP mapping module detects that the information of the VDP execution rule database is updated, the updating content is immediately checked, if the information that a new VDP execution rule is added is checked, the VDP mapping rule is added to the newly added VDP according to the execution rule, and meanwhile, the state information in the VDP execution rule database is updated.
At stage ⑤, the business process function is active.
Once the satellite network device VDP processing module detects that the information of the VDP function arrangement database is updated, the updating content is checked immediately, if the new VDP function arrangement information is added, a flow table combination corresponding to the VDP is generated in a resource pool allocated for the newly added VDP according to the function arrangement information, and meanwhile, the state information in the VDP function arrangement database is updated.
The specific business processing flow comprises the following steps:
(1) a service data packet input from a physical port of satellite network equipment firstly determines a corresponding internal logic port through a port mapping module, and secondly, an internal frame header is added to the service data packet by the port mapping module, wherein the internal frame header comprises an input physical port number and corresponding internal logic port number information of the data packet;
(2) the service data packet after the port mapping enters an input arbitration module for checking validity and filtering rules, and if the checking is not passed, the service data packet is directly discarded;
(3) the VDP mapping module determines a corresponding VDP processing unit to which the service data packet needs to be mapped according to the VDP mapping rule, and if the mapping is successful, the VDP processing unit number in the internal frame header is updated and the service data packet is sent to the corresponding VDP processing unit; if the mapping fails, directly discarding the service data packet and updating related state and statistical information; (ii) a
(4) Each stage of flow table comprises a domain extraction rule, a matching rule and a matching behavior, the VDP processing unit extracts data from an incoming service data packet according to the domain extraction rule, the data are matched according to the matching rule, if the matching is successful, the data are processed according to the matching behavior, and if the matching is failed, the service data packet is directly discarded; updating relevant state and statistical information;
the multi-stage flow table format employed in the VDP processing unit refers to fig. 3.
The VDP processing unit extracts corresponding data of the service data packet according to domain extraction rules (field of 'FE offset' and 'FE length') defined in each level of flow table in sequence and matches the extracted data with 'FE mask', if matching is successful, subsequent processing is carried out according to definition of 'matching action' field, and related state and statistical information are updated at the same time.
The definition of the "match action" field in the flow table refers to table 1.
TABLE 1 definition of match behavior field
| Behavior | Behavioral description |
| Discard the | Dropping incoming packets |
| Forwarding | Forwarding incoming data packets to specific ports/queues |
| Duplicate forwarding | Replicating and forwarding incoming data packets on one or more ports |
| Flooding by means of a water-containing gas | Forwarding incoming data packets at each port |
| Modifying | Modifying specific fields of an incoming data packet |
| Add tag | Adding custom label, VLAN label, MPLS label and the like to input data packet |
| Label removal | Removing specific labels carried by incoming data packets |
(5) The output scheduling module uniformly queues the processed service datagrams output by different VDP processing units and schedules and outputs the service datagrams according to the priority; the output service data packet is submitted to an end user or forwarded to other satellite network equipment.
The complete business function processing process of the network service is completed through the steps (1) to (5).
The above description is only for the best mode of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention are included in the scope of the present invention.
Those skilled in the art will appreciate that the invention may be practiced without these specific details.
Claims (7)
1. A multi-service parallel service system based on virtual data plane is characterized in that: the satellite/ground controller maps a specific network service required to be provided by the satellite network to a Virtual Data Plane (VDP), and generates and issues Virtual Data Plane (VDP) control information to the corresponding satellite network equipment; the satellite network equipment allocates resources for a corresponding Virtual Data Plane (VDP) according to the control information, the virtual data plane executes processing rules in the control information, and a VDP processing unit of the virtual data plane executes flow table combination to realize specific network service; the control information comprises resource configuration, processing rules and flow table combination; the resource configuration comprises logic, storage, computation and I/O resources; the processing rule comprises: port mapping rules, filtering rules, VDP mapping rules, domain extraction rules, classification rules, matching rules and forwarding rules; the control information further includes VDP description information; the VDP description information comprises an identification number of the virtual data plane, a type corresponding to the network service, capability description corresponding to the network service, information of an affiliate corresponding to the network service, resource allocation, execution processing rule, function arrangement and a retrieval value of VDP processing unit information generated for the virtual data plane; a resource management module in the satellite network equipment completes the allocation of resources required by a Virtual Data Plane (VDP) according to the issued resource configuration information; the port mapping module finishes the mapping from the physical port of the equipment to the internal logic port according to a port mapping rule issued by the controller; the input arbitration module finishes the validity check and the filtration of input data according to a filtration rule issued by the controller; the VDP mapping module determines a VDP processing unit into which data needs to enter according to a VDP mapping rule issued by the controller; the VDP processing unit realizes related service processing functions according to the flow table combination issued by the controller; the output scheduling module is responsible for scheduling and controlling the output data of the VDP processing units; different VDPs are logically independent from each other, and the same satellite network device can simultaneously support the parallel execution of a plurality of VDPs.
2. A virtual data plane based multi-service parallel service system as claimed in claim 1, wherein different Virtual Data Planes (VDPs) are logically independent from each other and functionally independently customized.
3. A method for providing satellite network services in parallel, comprising the steps of:
(1) the satellite/ground controller determines satellite network equipment providing network service;
(2) the satellite/ground controller generates a Virtual Data Plane (VDP) of the network service provided by the satellite network equipment and sends control information to the satellite network equipment; different VDPs are logically independent from each other, and the same satellite network equipment can simultaneously support the parallel execution of a plurality of VDPs;
(3) the satellite network equipment configures resources for the Virtual Data Plane (VDP) according to control information, the virtual data plane executes processing rules in the control information, and a VDP processing unit of the virtual data plane executes flow table combination to realize specific network service; the allocating, by the satellite network device according to the control information, resources to the Virtual Data Plane (VDP) is specifically: a resource management module in the satellite network equipment completes the allocation of resources required by a Virtual Data Plane (VDP) according to the issued resource configuration information; the port mapping module finishes the mapping from the physical port of the equipment to the internal logic port according to a port mapping rule issued by the controller; the input arbitration module finishes the validity check and the filtration of input data according to a filtration rule issued by the controller; the VDP mapping module determines a VDP processing unit into which data needs to enter according to a VDP mapping rule issued by the controller; the VDP processing unit realizes related service processing functions according to the flow table combination issued by the controller; the output scheduling module is responsible for scheduling and controlling the output data of the VDP processing units.
4. A method for providing satellite network services in parallel as claimed in claim 3 wherein the different Virtual Data Planes (VDPs) are logically independent of each other and functionally independently customised.
5. The method according to claim 3, wherein after the control information is sent to the satellite network device, if the satellite network device detects that the resource configuration information is updated, the corresponding resource is allocated to a newly added Virtual Data Plane (VDP) according to the resource configuration information; if the satellite network equipment updates the execution rule, adding a port mapping rule and an arbitration rule for a newly added Virtual Data Plane (VDP) according to the execution rule; and if the satellite network equipment detects that the function arrangement information is updated, generating a flow table combination corresponding to the Virtual Data Plane (VDP) in a resource pool allocated for the newly added VDP according to the function arrangement information.
6. The method of claim 5, wherein the state information in the resource allocation repository is updated after the corresponding resources are allocated; after the rule is added, the state information in the execution rule database is updated.
7. A network service method based on the multi-service parallel service system of claim 1, characterized by comprising the steps of:
(1) determining a corresponding internal logic port of the satellite network equipment by a service data packet input from a physical port of the satellite network equipment through a port mapping module, and adding an internal frame header for the service data packet by the port mapping module, wherein the internal frame header comprises an input physical port number and corresponding internal logic port number information of the data packet;
(2) the input arbitration module checks validity and filtering rules, and if the checking fails, the input arbitration module directly discards the filter rules; if the check is passed, entering the step (3);
(3) the VDP mapping module determines a corresponding VDP processing unit to which the service data packet needs to be mapped according to the VDP mapping rule, and if the mapping is successful, the VDP processing unit number in the internal frame header is updated and the service data packet is sent to the corresponding VDP processing unit; if the mapping fails, directly discarding the service data packet and updating related state and statistical information;
(4) each stage of flow table comprises a domain extraction rule, a matching rule and a matching behavior, the VDP processing unit extracts data from an incoming service data packet according to the domain extraction rule, the data are matched according to the matching rule, if the matching is successful, the data are processed according to the matching behavior, and if the matching is failed, the service data packet is directly discarded; updating relevant state and statistical information;
(5) the output scheduling module uniformly queues the processed service datagrams output by different VDP processing units and schedules and outputs the service datagrams according to the priority; the output service data packet is submitted to an end user or forwarded to other satellite network equipment.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
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| CN109379236A (en) * | 2018-12-04 | 2019-02-22 | 广东电网有限责任公司 | A kind of web page user interactive operation back method |
| CN113708965B (en) * | 2021-08-24 | 2023-04-07 | 北京计算机技术及应用研究所 | High-performance component-based data packet processing system |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2000028699A1 (en) * | 1998-10-23 | 2000-05-18 | Pankaj Kumar Mitra | An improved private combined voice fax and data telecommunication system |
| KR20050033060A (en) * | 2005-03-17 | 2005-04-08 | (주)제타스톰 | System and method for constructing a hot spare using a network |
| CN102292698A (en) * | 2009-02-04 | 2011-12-21 | 思杰系统有限公司 | Methods and systems for automated management of virtual resources in a cloud computing environment |
| CN103428784A (en) * | 2013-06-18 | 2013-12-04 | 北京山竹科技有限公司 | Satellite communication network management and intelligent scheduling system and carrier wave switching method thereof |
| CN103854705A (en) * | 2012-11-30 | 2014-06-11 | 三星电子株式会社 | Method and system for providing smart memory architecture |
| CN106034060A (en) * | 2015-03-09 | 2016-10-19 | 中兴通讯股份有限公司 | Method and system for realizing virtual network |
| CN106685511A (en) * | 2016-11-02 | 2017-05-17 | 北京邮电大学 | Spatial information network architecture |
| CN106712837A (en) * | 2017-02-03 | 2017-05-24 | 北京子午精航科技有限公司 | Communication node based on Beidou satellite navigation system, and communication method thereof |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20080021777A1 (en) * | 2006-04-24 | 2008-01-24 | Illumobile Corporation | System for displaying visual content |
-
2017
- 2017-09-27 CN CN201710892675.5A patent/CN107911158B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2000028699A1 (en) * | 1998-10-23 | 2000-05-18 | Pankaj Kumar Mitra | An improved private combined voice fax and data telecommunication system |
| KR20050033060A (en) * | 2005-03-17 | 2005-04-08 | (주)제타스톰 | System and method for constructing a hot spare using a network |
| CN102292698A (en) * | 2009-02-04 | 2011-12-21 | 思杰系统有限公司 | Methods and systems for automated management of virtual resources in a cloud computing environment |
| CN103854705A (en) * | 2012-11-30 | 2014-06-11 | 三星电子株式会社 | Method and system for providing smart memory architecture |
| CN103428784A (en) * | 2013-06-18 | 2013-12-04 | 北京山竹科技有限公司 | Satellite communication network management and intelligent scheduling system and carrier wave switching method thereof |
| CN106034060A (en) * | 2015-03-09 | 2016-10-19 | 中兴通讯股份有限公司 | Method and system for realizing virtual network |
| CN106685511A (en) * | 2016-11-02 | 2017-05-17 | 北京邮电大学 | Spatial information network architecture |
| CN106712837A (en) * | 2017-02-03 | 2017-05-24 | 北京子午精航科技有限公司 | Communication node based on Beidou satellite navigation system, and communication method thereof |
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