SDN Local Access Element Service Recovery
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Solution Overview
Problem
Software defined networking (SDN) local access elements face service outages due to disruptions in connectivity with the cloud-based SDN controller, preventing service restoration without access to configuration and provisioning data stored in the cloud.
Innovation Solution
Storing configuration and provisioning data locally at customer premises, allowing the SDN local access element to retrieve and initialize services even if connectivity with the cloud is lost, by using equipment such as gateway devices connected to the SDN local access element.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If configuration and provisioning data are stored only in the cloud-based SDN controller, then centralized control and management are simplified, but service restoration is prevented when connectivity is lost
Solution Approach 1:
The patent applies preliminary action by having the SDN local access element obtain and store configuration data and customer provisioning data from the cloud-based SDN controller before connectivity is lost. This pre-storing of data enables the local access element to autonomously restore services offline without requiring real-time cloud connectivity, thus resolving the contradiction between centralized control simplicity and service restoration reliability
2Productivity
If the SDN local access element continuously connects to the cloud-based SDN controller, then real-time configuration updates are enabled, but service disruption occurs when connectivity is interrupted
Solution Approach 1:
The patent applies dynamics by enabling the SDN local access element to dynamically switch between online and offline operational modes. When connected to the cloud, the local access element receives real-time configuration updates and synchronizes data. When connectivity is interrupted, it automatically transitions to offline mode and continues providing services using locally stored data, thus resolving the contradiction between configuration update efficiency and service continuity
Data Source
AI summary
In one example, the present disclosure describes a device, computer-readable medium, and method for restoring local access elements in a software defined network (SDN) following service outages. For instance, in one example, a method includes retrieving, by a software defined networking local access element connected to a customer premises, configuration data and customer provisioning data from equipment located at the customer premises and initializing the software defined networking local access element with the configuration data and customer provisioning data to provide service to the customer premises.