Path selection strategy configuration method and device, path selection method and device and storage medium
A path selection and policy configuration technology, applied in the field of network services, can solve problems such as lack of flexibility, inability to perceive Underlay capabilities, and inability to perform business identification, achieving the effect of reducing complexity and enhancing flexibility
Active Publication Date: 2022-03-18
CHINA MOBILE COMM LTD RES INST +1
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Problems solved by technology
[0011] 1) The path selection policy for business traffic is applied to the PoP device instead of the CPE on the client side, resulting in the need to configure the PoP device on the LAN side for customer policy changes. A policy change often involves the coordination of multiple network devices, which lacks flexibility; And the Overlay is not aware of the Underlay capability, and can only use the pre-specified method to configure the mapping relationship of service traffic in the Underlay and Overlay respectively in a static way;
[0012] 2) If the service traffic received by the PoP device from the client-side CPE is encrypted traffic, it cannot perform service identification. The PoP device needs to cooperate with the CPE to perform service identification, which increases the complexity of the path selection policy application
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[0054] The present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments.
[0055] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the technical field of the invention. The terms used herein in the description of the present invention are for the purpose of describing specific embodiments only, and are not intended to limit the present invention.
[0056] Before describing the technical solutions of the embodiments of the present invention, firstly, the application scenarios of the embodiments of the present invention will be described with reference to the accompanying drawings. Such as figure 1 As shown, in an application example, the system structure of the application scenario includes: CPE1, CPE2, PoP1, PoP2, Underlay network, Overlay controller, and Underlay controller; wherein, the relationship between the Underla...
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The invention discloses a path selection strategy configuration method and device, a path selection method and device and a storage medium. The configuration method comprises the following steps: acquiring a plurality of first BSIDs (Base Station Identifiers) representing different network service capabilities of an Underlay network; a second BSID is generated based on a source routing strategy of the Overlay network and each first BSID, and the second BSID is used for indicating overlay routing information fusing the network service capability of the Underlay network; and the generated second BSID is sent to a corresponding PoP device and a CPE (Customer Premise Equipment). According to the invention, the CPE can achieve the call of the Overlay to the Underlay forwarding path by specifying the second BSID, and compared with the configuration of the path selection strategy at the PoP device at the local area network side, the flexibility is enhanced, and the application complexity of the path selection strategy is effectively reduced.
Description
technical field [0001] The invention relates to the field of network services, in particular to a path selection policy configuration method, path selection method, device and storage medium. Background technique [0002] SD-WAN (Software Defined Wide Area Network) is a cloud-network fusion network based on Overlay (upper layer), which is characterized in that business traffic is transmitted through Overlay tunnels. From the perspective of SD-WAN, the network is like a multi-point interconnected logical network and has nothing to do with specific network management domains and professional domains. A typical carrier’s SD-WAN connects the CPE (Customer Premise Equipment) on the client side to the PoP (Point of Presence, access point) device on the LAN side through the ubiquitous Internet. Interconnection through the Overlay tunnel to realize customers' networking, cloud access and other services. [0003] In order to ensure the quality of service, Overlay-based SD-WAN often...
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IPC IPC(8): H04L45/00H04L45/50
CPCH04L45/34H04L45/50
Inventor 杨锋程伟强
Owner CHINA MOBILE COMM LTD RES INST