Method, system and device for realizing plane separation based on SDN
A technology of plane separation and network implementation, applied in transmission systems, digital transmission systems, data exchange networks, etc., can solve problems such as poor performance, stability, and scalability, and achieve improved scalability, improved performance and stability, and reduced complexity. sexual effect
Active Publication Date: 2019-07-16
上海层峰网络科技有限公司
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Problems solved by technology
[0006] The present invention provides a method for realizing plane separation based on an SDN network, so as to solve the problem of interconnection of existing traditional user IP networks across the backbone network, the problem of routing learning between user networks, and the performance caused by the coupling of forwarding functions and routing functions of access devices , poor stability and scalability issues
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[0037] In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. However, the present invention can be implemented in many other ways that are different from those described here, and those skilled in the art can make similar promotions without departing from the connotation of the present invention, so the present invention is not limited by the specific implementation disclosed below.
[0038] This application is mainly applied to SDN. The core technology of SDN is the Openflow protocol. The Openflow protocol runs on the physical network of the SDN. The SDN physical network includes an SDN controller and a plurality of Openflow switches. The following are the technical terms involved:
[0039] CE: CustomerEdg, customer edge equipment, the customer end router to which the service provider is connected. A CE router provides service access for users by connecting to one or more PE routers. A CE...
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The invention discloses a method for realizing plane separation based on an SDN. The method comprises the steps that an SDN controller issues an ARP message flow table and an ip message flow table between a user router CE and a virtual router vRouter to an openflow switch, and a virtual control link between the CE and the vRouter is established; wherein the virtual control link is used for transmitting control flow; the vRouter obtains ARP information and routing information of each CE, sends the ARP information and the routing information to the SDN controller, and guides the SDN controller to issue a service data flow table to the openflow switch; the SDN controller issues an ARP request flow table and a service data flow table among the CEs to the openflow switch according to the ARP information and the routing information, and establishes virtual service data links among the CEs; wherein the virtual service data link is used for transmitting a service data message. According to theinvention, decoupling of the network data forwarding plane and the routing control plane is realized, the access device of the network is only responsible for data forwarding, and the performance andthe stability of the device are improved.
Description
technical field [0001] The invention relates to the field of SDN communication, in particular to a method for realizing plane separation based on an SDN network. The present invention also relates to a system for realizing plane separation based on an SDN network and a device for realizing plane separation based on an SDN network. Background technique [0002] MPLS VPN is an IP-VPN based on MPLS technology. It applies MPLS technology to network routing and switching equipment, simplifies the route selection mode of core routers, and implements IP virtual private network (IP VPN) by using label switching combined with traditional routing technology. ), which can be used to construct broadband Intranet and Extranet to meet various flexible business requirements. [0003] MPLS VPN is subdivided into Layer 2 VPN and Layer 3 VPN according to whether PE (Provider Edge Router, backbone network edge router) participates in VPN routing processing. L2VPN / L3VPN is responsible for acc...
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IPC IPC(8): H04L12/723H04L12/741H04L12/751H04L29/12H04L45/50H04L45/02H04L45/74
CPCH04L45/50H04L45/08H04L45/745H04L61/103
Inventor 盛苏林王仙平庞俊英吕屹
Owner 上海层峰网络科技有限公司