DSVPN Tunnel Link Profiles for Automated SD-WAN Configuration
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Solution Overview
Problem
In software-defined wide area networks (SD-WAN), the manual configuration of dynamic smart virtual private network (DSVPN) tunnels is labor-intensive, leading to low automation and increased administrative workload.
Innovation Solution
A controller automatically generates link configuration parameters based on preconfigured link profiles and rules, reducing the need for manual input by tenants, and orchestrates tunnel creation between sites using SD-WAN technology.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Extent of automation
If manual configuration of link parameters is used for establishing DSVPN tunnels, then configuration flexibility and control precision are improved, but automation degree and productivity deteriorate
Solution Approach 1:
The patent applies preliminary action by preconfiguring link profiles with all necessary link parameters before actual tunnel establishment. When a DSVPN tunnel needs to be created, the system automatically selects from pre-configured link profiles rather than requiring real-time manual parameter entry, thereby improving automation degree without significantly increasing system complexity
Solution Approach 2:
The link profile serves as a universal template that can be applied to multiple DSVPN tunnel configurations. A single pre-configured link profile contains all necessary parameters (bandwidth, delay, loss, jitter) that can be reused across different tunnels, enabling one-time configuration effort to serve multiple purposes and improving automation without proportionally increasing complexity
2Productivity
If manual entry of link configuration parameters is performed, then configuration accuracy and reliability are improved, but manual workload and time consumption increase
Solution Approach 1:
All link configuration parameters are pre-configured in link profiles before tunnel establishment is needed. When a tunnel is created, the system automatically retrieves and applies the pre-configured parameters from the selected link profile, eliminating the need for manual parameter entry and significantly reducing configuration time while maintaining accuracy
Solution Approach 2:
The system performs self-service by automatically selecting appropriate link profiles and generating complete link configuration parameters without requiring administrator intervention. The controller autonomously retrieves pre-configured parameters and generates the necessary configuration data, transforming a manual task into an automated self-service process that improves productivity and reduces time loss
Data Source
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AI summary
Embodiments of this application disclose a link configuration method, to configure a DSVPN tunnel interface parameter. The method includes: obtaining, by a controller, a first link profile and a second link profile that are respectively selected by a tenant from a link profile library for a first site and a second site, where the link profile library includes a plurality of link profiles, and each of the plurality of link profiles includes a gateway type, a link type, a link name, and a wide area network side physical port number of a gateway; obtaining, by the controller, preconfigured global configuration information, where the global configuration information includes an address pool of a link; generating, by the controller, a first link configuration parameter of the first site and a second link configuration parameter of the second site based on the address pool, the first link profile, and the second link profile and according to a preset link configuration rule; sending, by the controller, the first link configuration parameter to the first site; and sending, by the controller, the second link configuration parameter to the second site.