Adaptive IPv6 Prefix Delegation via Bit Boundary Calculation

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Solution Overview

Problem

Current prefix delegation processes in IPv6 networks, such as those using DHCPv6, require manual intervention and are not fully automated, leading to inefficiencies in managing and sub-delegating prefixes across multiple layers of routers in complex network configurations.

Innovation Solution

An adaptive prefix delegation system that employs a prefix delegation controller to dynamically manage and sub-delegate IPv6 prefixes, using a method that calculates a bit boundary based on available interfaces to generate additional prefixes, allowing for automated and self-configuring networks.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Extent of automation

If manual prefix delegation processes are used in IPv6 networks, then network administrators can control and manage prefixes, but the complexity of managing and sub-delegating prefixes across multiple layers of routers increases and automation is reduced

Engineering Contradiction:
Improveautomation of prefix delegationVSAvoidcomplexity of managing prefixes across multiple router layers
Core Design Contradiction:
Extent of automationVSDevice complexity

Solution Approach 1:

The patent implements self-service by enabling routers to automatically calculate bit boundaries and generate prefixes without manual intervention. The system allows networks to self-configure by automatically delegating prefixes through multiple router layers based on interface counts, eliminating the need for administrators to manually manage prefix delegation across complex multi-layer router topologies.

Inventive Principle:
Principle #25Self-service

Solution Approach 2:

The patent applies parameter changes by dynamically adjusting prefix delegation parameters based on router interface characteristics. The system calculates bit boundaries using interface count parameters and automatically generates appropriate prefix lengths, transforming the static manual configuration process into a dynamic automated system that adapts parameters based on network topology and router capabilities.

Inventive Principle:
Principle #35Parameter changes

2Productivity

If adaptive prefix delegation with automated calculation is implemented, then automation and efficiency are improved, but the complexity of the delegation system increases

Engineering Contradiction:
Improveefficiency of prefix delegationVSAvoidcomplexity of adaptive delegation system
Core Design Contradiction:
ProductivityVSDevice complexity

Solution Approach 1:

The patent introduces an intermediary mechanism in the form of standardized calculation algorithms that mediate between router interface characteristics and prefix delegation decisions. This intermediary layer automates the complex calculations of bit boundaries and prefix generation, improving productivity by eliminating manual processes while containing system complexity through standardized, repeatable computational logic rather than ad-hoc complex decision-making.

Inventive Principle:
Principle #24Intermediary (Mediator)

Solution Approach 2:

The patent applies segmentation by breaking down the complex prefix delegation process into discrete, manageable steps: counting interfaces, calculating bit boundaries, generating prefixes, and delegating to downstream routers. This segmentation transforms a potentially overwhelming complex system into a series of simple, automated operations, improving productivity while managing complexity through modular processing steps.

Inventive Principle:
Principle #1Segmentation

Data Source

PatentUS10110553B2Adaptive prefix delegation
Publication Date: 2018.10.23 CABLE TELEVISION LAB INC
  • US10110553B2 patent drawing
  • US10110553B2 patent drawing
  • US10110553B2 patent drawing

AI summary

Adaptive prefix delegation that facilitates delegating prefixes from one device to another. The prefix delegation may be adaptively implemented to enable delegation router to make decision regarding characteristics of prefixes to be delegated. The adaptive prefix delegation may be automatically or dynamically preformed according to particularly operation capabilities of each delegating device.