Node Registration Propagation in Overlay Networks

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Solution Overview

Problem

Existing network solutions face inefficiencies in registering nodes across different locator domains, particularly in dynamically changing network topologies, leading to inefficient routing decisions and increased signaling traffic due to separate registration processes in underlying and overlay networks.

Innovation Solution

A method where nodes in the underlying network register with a registration node that initiates propagation of registration information towards the overlay network, allowing for integrated registration and topology information sharing, thereby eliminating the need for separate registrations and optimizing the selection and deployment of overlay nodes.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Productivity

If separate registration processes are used in underlying and overlay networks, then nodes can be registered in each network independently, but signaling traffic increases and registration efficiency decreases

Engineering Contradiction:
Improveregistration efficiencyVSAvoidsignaling traffic
Core Design Contradiction:
ProductivityVSLoss of energy

Solution Approach 1:

The patent combines the node registration process in the underlying network with the overlay network registration by having the registration node propagate registration information to both networks simultaneously. This merging eliminates duplicate registration operations and reduces signaling traffic while maintaining independent registration capabilities.

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The registration node is designed to perform multiple functions: registering nodes in the underlying network, propagating registration information to the overlay network, and maintaining topology information. This multi-functionality reduces the need for separate registration processes and decreases overall signaling overhead.

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

2Ease of operation

If nodes register separately in underlying and overlay networks, then registration flexibility is maintained, but routing decisions become inefficient

Engineering Contradiction:
Improveregistration flexibilityVSAvoidrouting efficiency
Core Design Contradiction:
Ease of operationVSProductivity

Solution Approach 1:

The registration node uses feedback from the underlying network registration process to automatically populate overlay network routing information. Topology information gathered during underlying network registration is fed back to enable intelligent routing decisions in the overlay network without requiring separate manual configuration.

Inventive Principle:
Principle #23Feedback

Solution Approach 2:

Topology information is collected and processed in advance during the underlying network registration phase before overlay network routing decisions are needed. This preliminary action ensures that routing information is ready when required, improving routing efficiency without compromising registration flexibility.

Inventive Principle:
Principle #10Preliminary action

3Adaptability or versatility

If registration information is propagated through multiple domains, then global reachability is achieved, but registration complexity increases

Engineering Contradiction:
Improveglobal reachabilityVSAvoidregistration complexity
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The registration propagation process is segmented into manageable steps where the registration node handles local registration and automatically propagates information through intermediary domains. This segmentation reduces the complexity burden on individual nodes while achieving global reachability through hierarchical propagation.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The registration node acts as an intermediary that simplifies the propagation process. It receives registration information from nodes, processes topology data, and automatically propagates it to appropriate domains and overlay networks, reducing the complexity burden on end nodes while achieving global reachability.

Inventive Principle:
Principle #24Intermediary (Mediator)

Data Source

PatentEP2098045B1Node registering method
Publication Date: 2019.01.09 TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
  • EP2098045B1 patent drawingFigure 1
  • EP2098045B1 patent drawingFigure 2
  • EP2098045B1 patent drawingFigure 3

AI summary

A method is described for registering a node of an underlying network at an overlay network, characterized in that the node of the underlying network registers at a registration node which initiates a propagation of registration information towards the overlay network.