Multi-domain SDN Controller for Cable Network Diagnostics
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Cable network operators face challenges in configuring and diagnosing issues in their two-way communication networks, which were initially optimized for one-way broadcast signals, leading to difficulties in providing digital services efficiently and effectively troubleshooting failures.
Innovation Solution
A multi-domain software defined network (SDN) controller is used to obtain and correlate operational state and configuration information across various domains and layers, generating a user interface for visualizing the network status and configuration, enabling end-to-end diagnostic and troubleshooting capabilities.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a cable network is upgraded from one-way broadcast to two-way communication for digital services, then service capability is improved, but network complexity and equipment cost increase
Solution Approach 1:
The network is divided into multiple logical domains (transport domain, access domain, service domain) that can be independently managed and configured. Each domain handles specific functions, allowing complex two-way digital services to be broken down into manageable segments that can be provisioned and troubleshooted separately, reducing overall system complexity while maintaining service capability.
Solution Approach 2:
A centralized network management system acts as an intermediary between service requests and network resources. This mediator automates the provisioning process by translating high-level service requirements into specific configuration actions across multiple network domains, eliminating the need for manual configuration and reducing the operational complexity of managing two-way communication infrastructure.
2Productivity
If network operators manually configure and troubleshoot multi-domain networks, then service deployment is possible, but time consumption and operational complexity increase
Solution Approach 1:
The system performs preliminary configuration actions automatically during service provisioning. When a service is requested, the network management system pre-configures all necessary network elements across multiple domains before service activation, eliminating manual configuration steps and reducing deployment time. Configuration templates and automation scripts prepare the network in advance for service activation.
Solution Approach 2:
The troubleshooting system implements continuous feedback mechanisms that automatically collect performance metrics and error information from network elements. When failures occur, the system analyzes feedback data to automatically diagnose root causes and suggest remediation actions, significantly reducing troubleshooting time compared to manual methods by providing real-time visibility into network state across all domains.
3Measurement precision
If comprehensive network monitoring is implemented across multiple domains and layers, then diagnostic capability is improved, but system complexity and information processing requirements increase
Solution Approach 1:
The monitoring system adds a new dimension of abstraction by implementing a unified logical view layer that sits above the physical multi-domain infrastructure. This logical dimension consolidates monitoring data from transport, access, and service domains into a single coherent representation, allowing operators to diagnose issues across domain boundaries without being overwhelmed by the complexity of individual domain monitoring systems.
Solution Approach 2:
A universal monitoring framework is implemented that can monitor multiple domains (transport, access, service) and multiple protocol layers (physical, data link, network, application) through a single integrated system. This multi-functional approach eliminates the need for separate monitoring tools for each domain, reducing overall system complexity while maintaining comprehensive diagnostic capability across the entire network infrastructure.
Data Source
AI summary
A method and system for diagnosing a fault in a system. Operational state and configuration information is obtained from a plurality of components residing in a plurality of domains, the status and configuration information being based on a plurality of layers of a communication model. The operational state and configuration information are correlated and reformatted to create an end-to-end view of a network-based application; and a user interface configured to visualize the correlated and reformatted operational state and configuration information across the plurality of domains is generated, the user interface configured to present the visualized status and configuration information at each of the plurality of layers.