Multi-Cloud Site-to-Site Connectivity With Automated Tunnel Scaling

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Solution Overview

Problem

Managing and scaling network infrastructure to handle increasing data traffic across multiple cloud networks is complex, especially when dealing with dynamic cloud environments and multiple cloud providers, requiring effective monitoring and secure connectivity solutions.

Innovation Solution

A system that provides connectivity as a service by dynamically generating site-to-site connections between cloud networks, using a controller to automate the process and manage tunnels, monitor health, and scale bandwidth, while handling site-specific protocols and configurations.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Extent of automation

If manual configuration of site-to-site connections is used, then connectivity security is maintained, but system complexity and time consumption increase significantly

Engineering Contradiction:
Improveautomatic tunnel setupVSAvoidconnection security
Core Design Contradiction:
Extent of automationVSReliability

Solution Approach 1:

The system enables automatic self-configuration of site-to-site connections through controller 210, which autonomously discovers network sites, selects appropriate devices, and establishes encrypted tunnels without manual intervention. The system self-manages the entire connection lifecycle including monitoring and dynamic scaling, eliminating the trade-off between automation and security.

Inventive Principle:
Principle #25Self-service

2Productivity

If dynamic scaling of network infrastructure is implemented, then traffic handling capability improves, but system complexity increases

Engineering Contradiction:
Improvetraffic handling capabilityVSAvoidnetwork infrastructure complexity
Core Design Contradiction:
ProductivityVSDevice complexity

Solution Approach 1:

The system implements dynamic scaling by continuously monitoring traffic metrics and automatically adjusting tunnel bandwidth allocation and quantity. Controller 210 dynamically provisions additional tunnels or increases bandwidth when traffic thresholds are exceeded, and scales down when traffic decreases, enabling the network infrastructure to adapt flexibly to changing demands without fixed complexity.

Inventive Principle:
Principle #15Dynamics

3Adaptability or versatility

If multiple cloud providers are integrated, then system versatility improves, but management complexity increases

Engineering Contradiction:
Improvemulti-cloud compatibilityVSAvoidconnection management
Core Design Contradiction:
Adaptability or versatilityVSEase of operation

Solution Approach 1:

The system achieves universal multi-cloud integration through controller 210, which provides a unified interface and standardized protocols for connecting sites across different cloud providers. The controller abstracts cloud-specific complexities and manages all connections through consistent site-specific protocols, enabling versatile multi-cloud support while simplifying management operations.

Inventive Principle:
Principle #6Universality (Multi-functionality)

Data Source

PatentUS12425329B2Multi-cloud site-site secure connectivity as a service
Publication Date: 2025.09.23 CISCO TECHNOLOGY INC
  • US12425329B2 patent drawing
  • US12425329B2 patent drawing
  • US12425329B2 patent drawing

AI summary

The present technology provides intercloud connectivity as a service by discovering components of the organization's deployment in various sites, irrespective of the cloud provider, such that two sites can merely be selected along with a few standard options, and the controller can handle the complexity of instantiating a tunnel between the cloud sites automatically. Further, the controller can monitor the health of one or more tunnels between the cloud sites to automatically scale bandwidth up or down.