CN112218183A - SD-WAN-based CPE and ONU combination method - Google Patents
SD-WAN-based CPE and ONU combination method Download PDFInfo
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- CN112218183A CN112218183A CN202011082212.0A CN202011082212A CN112218183A CN 112218183 A CN112218183 A CN 112218183A CN 202011082212 A CN202011082212 A CN 202011082212A CN 112218183 A CN112218183 A CN 112218183A
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- H—ELECTRICITY
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- H04Q11/00—Selecting arrangements for multiplex systems
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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
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- H—ELECTRICITY
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- H04Q—SELECTING
- H04Q11/00—Selecting arrangements for multiplex systems
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Abstract
The invention provides a CPE and ONU combination method based on SD-WAN, belonging to the technical field of computer network. The invention realizes the combination of the PON technology and the SD-WAN technology, thereby not only improving the data transmission speed, but also ensuring the safety of the system and reducing the network cost.
Description
Technical Field
The invention relates to a computer network technology, in particular to a CPE and ONU combination method based on SD-WAN.
Background
SD-WAN, a software defined wide area network, is a service formed by applying SDN technology to a wide area network scenario. The service is used for connecting enterprise networks, data centers, internet applications and cloud services in a wide geographic range, and aims to help users reduce the expense of wide area networks and improve the flexibility of network connection.
SD-WAN is a software-based network application technology applied to WAN transport connections that enables enterprises to integrate and virtualize wide area network connections and functions into a centralized strategy to simplify deployment and management of complex WAN topologies. SD-WAN is a collection of technologies, and the main concept is to apply the technology of Software Defined Networking (SDN) to manage a wide area network. The SDN uses a virtualization technology, and management, operation and maintenance work of the IT is simplified.
The SD-WAN is a set of technologies, including a plurality of traditional technologies such as routing, security, wide area network acceleration and the like, and the main concept is to apply SDN technology to the management of the wide area network, so that the maintenance of the enterprise-level wide area network is simplified. The SD-WAN separates the control and forwarding functions of the network equipment and utilizes new technologies such as cloud computing and the like to modify the traditional architecture. The method comprises connection, security and other value-added services, so that enterprises can establish a high-performance network by using a low-cost network networking mode.
Currently, some enterprises attempt to reconfigure enterprise-level WAN solutions around CPEs, in contrast to traditional vendor-supplied routers and wide area network acceleration equipment. The enterprise detects and coordinates different WAN lines on the CPE, allows the Interne lines to transmit some high-priority data streams, and reduces the dependency on the private line.
The ONU is an optical network unit which is divided into an active optical network unit and a passive optical network unit. Generally, PON technology uses a single optical fiber to connect to an OLT, which then connects to an ONU, which is used to provide multiple service supports. However, the current ONU device does not support the SDN technology, further does not have the capability of supporting SD-WAN technology services, and cannot meet the requirements of enterprise-level WAN schemes.
Disclosure of Invention
In order to solve the technical problems, starting from the deployment of the SD-WAN CPE, the SD-WAN comprehensively considers the application condition of the existing SD-WAN technology in user side equipment, and the invention provides the SD-WAN-based CPE and ONU combination method, so that the performance requirement of an enterprise-level WAN scheme on the ONU is met.
The technical scheme of the invention is as follows:
a CPE and ONU combination method based on SD-WAN,
the SD-WAN environment is established in the service layer of the ONU software architecture, so that the functions of application identification, application acceleration and safety protection are realized. The PON technology and the SD-WAN technology are combined, so that the data transmission speed is improved, and the safety of the system is guaranteed.
Further, in the above-mentioned case,
firstly, the system in the ONU is a standard Linux system, and SD-WAN function deployment is carried out on the basis of supporting the traditional PON service.
Further, in the above-mentioned case,
and providing a uniform API for the management layer, and configuring and managing various services of the ONU after the request of the upper layer is received.
An SD-WAN service function is deployed on a service layer of an ONU, and a SD-WAN environment is established by installing strong swan, sysrepo, netopeer2 and python software in a Linux system.
Further, in the above-mentioned case,
and the configuration information of the upper application is transmitted to the configuration management module through unix socket information to read and store and complete the function setting of related services.
And performing data communication with each service process through the message management module.
Further, in the above-mentioned case,
in the single thread of the SD-WAN, firstly, information interaction is carried out with the SD-WAN controller through the OVS module.
When data enters the ONU, the data enters the application identification module firstly, and a program judges whether the data flow needs to be subjected to application acceleration through the VNF module or is directly transmitted out through the SD-WAN route, wherein the VNF module meets the safety requirement and the application acceleration requirement in the SD-WAN.
The invention has the advantages that
With the continuous development of communication technology, the ONU service types are rich continuously, but no ONU equipment capable of meeting the SD-WAN requirements is available, the SD-WAN technology is developed at a high speed at present, the invention follows the market development, the PON technology and the SD-WAN technology are combined, the network is more flexible, the SD-WAN technology is applied, the repetitive network cost can be reduced, and the communication safety capability of the optical network can be further improved.
Drawings
Fig. 1 is a schematic diagram of the software architecture of an ONU of the present invention;
fig. 2 is a schematic diagram of the SD-WAN oriented software architecture of the ONU service layer of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer and more complete, the technical solutions in the embodiments of the present invention will be described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention, and based on the embodiments of the present invention, all other embodiments obtained by a person of ordinary skill in the art without creative efforts belong to the scope of the present invention.
According to the SD-WAN-based CPE and ONU combination method, SD-WAN functions on the CPE are deployed on the ONU to form integrated equipment.
And an SD-WAN environment is built on a service layer of an ONU software architecture, so that related functions of the SD-WAN are realized.
Firstly, a system in the ONU used in the invention is a standard Linux system, and SD-WAN function deployment is carried out on the basis of supporting the traditional PON service.
Fig. 1 shows a software architecture of an ONU according to the present invention.
The invention provides a unified API for a management layer by a service layer of the ONU, and performs configuration management on various services of the ONU after an upper layer request is received. The SD-WAN service function is deployed on the service layer of the ONU, and the SD-WAN environment is established by installing software such as strong swan, sysrepo, netopeer2, python and the like in the Linux system.
As shown in fig. 2, the service layer of the ONU of the present invention is modified to a SD-WAN oriented software architecture, which basically implements the required functions owned by the SD-WAN based CPE.
And the configuration information of the upper application is transmitted to the configuration management module through unix socket information to read and store and complete the function setting of related services. And then, data communication is carried out with each service process through the message management module.
In the SD-WAN single thread, firstly, the OVS module and the SD-WAN controller perform information interaction, when data enter the ONU, the OVS module enters the application identification module, and a program judges whether the data flow needs to be subjected to application acceleration through the VNF module or directly transmitted out through the SD-WAN route, wherein the VNF module meets some series of requirements such as security requirements and application acceleration requirements in the SD-WAN.
The above description is only a preferred embodiment of the present invention, and is only used to illustrate the technical solutions of the present invention, and not to limit the protection scope of the present invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention shall fall within the protection scope of the present invention.
Claims (8)
1. A CPE and ONU combination method based on SD-WAN is characterized in that,
the SD-WAN environment is established in the service layer of the ONU software architecture, so that the functions of application identification, application acceleration and safety protection are realized.
2. The method of claim 1,
firstly, the system in the ONU is a standard Linux system, and SD-WAN function deployment is carried out on the basis of supporting the traditional PON service.
3. The method of claim 2,
and providing a uniform API for the management layer, and configuring and managing various services of the ONU after the request of the upper layer is received.
4. The method according to claim 2 or 3,
an SD-WAN service function is deployed on a service layer of an ONU, and a SD-WAN environment is established by installing strong swan, sysrepo, netopeer2 and python software in a Linux system.
5. The method of claim 4,
and the configuration information of the upper application is transmitted to the configuration management module through unix socket information to read and store and complete the function setting of related services.
6. The method of claim 5,
and performing data communication with each service process through the message management module.
7. The method of claim 5,
in the single thread of the SD-WAN, firstly, information interaction is carried out with the SD-WAN controller through the OVS module.
8. The method of claim 7,
when data enters the ONU, the data enters the application identification module firstly, and a program judges whether the data flow needs to be subjected to application acceleration through the VNF module or is directly transmitted out through the SD-WAN route, wherein the VNF module meets the safety requirement and the application acceleration requirement in the SD-WAN.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113825160A (en) * | 2021-09-29 | 2021-12-21 | 广州电力通信网络有限公司 | SD-WAN-based CPE and ONU combination method |
| CN113825160B (en) * | 2021-09-29 | 2024-05-31 | 南方电网数字电网集团信息通信科技有限公司 | CPE and ONU combined setting method based on SD-WAN |
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