Method for distributing and updating routing information in SD-WAN network and controller

Abstract

The invention discloses a method for distributing and updating routing information in an SD-WAN network and a controller, and relates to the field of controllers and routing.The method comprises the steps that after the SD-WAN controller accesses the SD-WAN network, the routing information is collected, and the routing information of the whole network, the routing information issued to equipment and the routing information associated with the network are stored respectively; and when a user establishes a service, the controller issues a part of routing information to the associated equipment as required according to the network identifier and the routing prefix, stores the corresponding relationship between the network and the equipment, and refreshes the mapping relationship between the routing information and the network. According to the method for distributing and updating the routing information in the SD-WAN network, the SD-WAN controller serves as a control plane to establish connection with the equipment, the equipment is managed in a centralized mode, the routing information of the SD-WAN network is collected and updated in time, the equipment is only responsible for forwarding, and the data forwarding performance is improved.

Description

technical field [0001] The invention relates to the field of routing controllers, in particular to a method for distributing and updating routing information in an SD-WAN network and a controller. Background technique [0002] With the development of network technologies such as virtualization, cloud computing, big data, SDN (Software Defined Network) / NFV (Network Function Virtualization, network function virtualization), the application requirements of servers are diversified, and end-user services can be Customization has grown dramatically. Traditional networks have been unable to meet flexible scheduling of resources, customized service deployment and rapid application launch. SDN network technology has emerged to separate the network control plane from the data plane, dynamically adjust network configuration, and provide agile network support for services. [0003] The SDN controller needs to rely on southbound protocols (such as Netconf) and routing models (such as Ya...

AI Technical Summary

Problems solved by technology

[0006] 2. In the WAN network, the device acting as a BGP (Border Gateway Protocol, Border Gateway Protocol) route reflector is connected to the controller, which will increase the connection burden of the controller, as well as increase network traffic and equipment costs;

[0007] 3. At present, all clients under the route reflector belong to peers, and they are uniformly processed in the same way, and cannot be differentiated

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