Token-Based FSO Controller Coordination for Cross-Domain Path Monitoring

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Solution Overview

Problem

Monitoring application performance in cross-domain networks is challenging due to the complexity of coordinating multiple controllers across different domains, which hinders effective tracking and management of network paths.

Innovation Solution

A method involving multi-controller coordination, where a primary controller identifies and communicates with additional controllers across domains using tokens encapsulating authentication details and monitoring requirements, enabling direct communication and comprehensive network path monitoring.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If multiple controllers across different domains are coordinated to monitor network paths, then comprehensive network performance monitoring is achieved, but system complexity and coordination difficulty increase

Engineering Contradiction:

Improvenetwork performance monitoring completenessVSAvoidmulti-controller coordination complexity

Core Design Contradiction:

ReliabilityVSDevice complexity

Solution Approach 1:

The patent introduces a token as an intermediary mechanism that carries authentication details and monitoring requirements between controllers of different domains. This token-based mediator simplifies the coordination process by encapsulating necessary information in a standardized format, reducing the complexity of direct multi-controller communication while enabling comprehensive cross-domain monitoring.

Inventive Principle:

Principle #24Intermediary (Mediator)

2Productivity

If direct communication is established with resources of identified controllers, then monitoring efficiency is improved, but authentication and security management become more complex

Engineering Contradiction:

Improvemonitoring efficiencyVSAvoidauthentication and security management

Core Design Contradiction:

ProductivityVSDevice complexity

Solution Approach 1:

The patent implements preliminary authentication by validating the token before allowing direct communication between controllers. The token is pre-generated and signed by the source controller, containing authentication details that the destination controller verifies beforehand. This preliminary action establishes trust and security before the actual monitoring operations begin, simplifying subsequent communication while maintaining efficiency.

Inventive Principle:

Principle #10Preliminary action

Data Source

PatentUS20250267086A1Conveying operator intent to remote agents in an administrative-constrained cross-domain multi-controller fso network

Publication Date: 2025.08.21 CISCO TECHNOLOGY INC

AI summary

A method is described that involves a method for application performance in a cross-domain network using multi-controller coordination. The method includes receiving a request at a first controller from an application within an enterprise network, wherein the request seeks to monitor a network path. The first controller identifies one or more additional controllers within the enterprise network capable of monitoring the network path. These additional controllers include a first one within the same domain as the first controller (first domain) and a second one within a different domain (second domain). A token, encompassing authentication details and monitoring requirements linked to the request, is sent to the second additional controller from the first domain. Subsequently, direct communication is established with a resource of the second controller, allowing monitoring of the request and its associated operation.