Network Device Policy Adaptation for Auxiliary Config Changes
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Solution Overview
Problem
Existing network systems lack the ability to automatically detect and adapt to changes in auxiliary networks, such as virtual machine movements or physical device replacements, leading to inefficiencies in network policy management and packet forwarding configurations.
Innovation Solution
A method and device that detect changes in auxiliary networks and automatically determine and deploy new network policies to ensure continuous packet forwarding and monitoring, even when virtual machines or physical devices are moved or replaced, using a fabric manager to manage service nodes and integrate with SDN controllers.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If manual network policy management is used, then network control precision is maintained, but network efficiency deteriorates due to delayed policy updates during configuration changes
Solution Approach 1:
The system implements automated feedback loops where the network device continuously monitors auxiliary network configuration changes and automatically triggers policy determination and deployment processes, eliminating manual intervention delays and maintaining real-time network efficiency
Solution Approach 2:
The network device performs self-service by automatically detecting configuration changes, determining appropriate network policies, and deploying updated policies without external manual intervention, thereby reducing policy update time while maintaining control precision through algorithmic decision-making
2Adaptability or versatility
If network policies are manually updated after configuration changes, then policy accuracy is maintained, but network adaptability deteriorates due to delayed response to dynamic changes
Solution Approach 1:
Automated feedback mechanisms continuously monitor configuration changes and trigger immediate policy re-determination, ensuring the network adapts rapidly to changes while maintaining policy accuracy through systematic analysis of change inputs and established policy determination algorithms
Solution Approach 2:
The system performs preliminary actions by pre-configuring policy determination rules and change detection mechanisms, enabling immediate automated response to configuration changes before manual intervention would be required, thus improving adaptability without sacrificing reliability
3Productivity
If automated network policy determination is implemented, then network efficiency improves through rapid adaptation, but device complexity increases
Solution Approach 1:
The network device integrates multiple functions including configuration change detection, policy determination, and policy deployment within a single automated system, reducing the need for separate manual processes and external interventions while improving network efficiency through unified management
Solution Approach 2:
The system performs self-service automation that consolidates multiple management tasks into integrated workflows, reducing operational complexity despite increased automated functionality by eliminating the need for separate manual intervention processes
4Ease of operation
If manual intervention is used for policy updates, then control precision is maintained, but labor requirements increase
Solution Approach 1:
The network device performs self-service automation for policy determination and deployment, completely eliminating manual intervention requirements and reducing operational complexity while maintaining control precision through systematic automated decision-making processes
Solution Approach 2:
Automated feedback loops enable the system to self-regulate and self-update policies based on detected configuration changes, removing the need for manual monitoring and updating while maintaining operational simplicity through intuitive automated workflows
Data Source
AI summary
A method performed by a network device includes: receiving an input indicating a change in an auxiliary network from a first configuration to a second configuration, wherein the auxiliary network is configured to obtain copies of packets from a traffic production network; determining a first network policy, wherein the first network policy is for application in the auxiliary network when the auxiliary network is in the first configuration; and determining a second network policy by the network device based on the received input and the first network policy, wherein the second network policy is for application in the auxiliary network when the auxiliary network is in the second configuration.