Automated Ring Owner Selection for Network Failover

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Solution Overview

Problem

Current scalable compute resources require manual intervention for ring owner and active uplink selection upon failure, leading to potential downtime and degraded functionality due to the need for technician intervention and single-point failures.

Innovation Solution

The implementation of an automatic ring owner selection method using missed heartbeat messages and the G.8032 protocol, which automatically designates a new ring owner and relocates the active uplink without manual intervention, leveraging Continuity Check Protocol (CCP), Owner Selection Protocol (OSP), G.8032 protocol, and Management Port Selection Protocol over a management VLAN.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If manual intervention is used for ring owner selection upon failure, then system reliability is maintained through controlled failover, but downtime increases and productivity decreases due to technician intervention requirements

Engineering Contradiction:
Improvesystem reliabilityVSAvoiddowntime
Core Design Contradiction:
ReliabilityVSProductivity

Solution Approach 1:

The system implements automatic ring owner selection through the G.8032 protocol, where network modules autonomously detect failures via missed heartbeat messages and elect new ring owners without technician intervention. The protocol enables the network to self-diagnose and self-repair by having nodes automatically assume ownership when the current owner fails, eliminating manual reconfiguration requirements and reducing downtime.

Inventive Principle:
Principle #25Self-service

Solution Approach 2:

The implementation uses heartbeat messaging as a feedback mechanism where ring members continuously monitor the ring owner's status. When heartbeat messages are missed, the system detects the failure condition and triggers automatic owner reselection. This closed-loop feedback system ensures rapid detection and response to failures, maintaining reliability while minimizing downtime through automated remediation.

Inventive Principle:
Principle #23Feedback

2Stability of the object's composition

If a single active uplink is maintained with backup uplinks, then network stability is improved through controlled connectivity, but the system becomes vulnerable to single-point failures requiring manual intervention

Engineering Contradiction:
Improvenetwork stabilityVSAvoidvulnerability to single-point failures
Core Design Contradiction:
Stability of the object's compositionVSReliability

Solution Approach 1:

The system dynamically adjusts uplink ownership based on real-time operational status. The G.8032 protocol enables automatic transfer of active uplink designation to backup uplinks when the current active uplink fails. This dynamic reconfiguration allows the network to adapt to failures without manual intervention, transforming a static single-point-of-failure architecture into a resilient dynamic system that automatically redistributes connectivity roles.

Inventive Principle:
Principle #15Dynamics

3Productivity

If automatic ring owner selection is implemented, then productivity is improved by eliminating manual intervention and reducing downtime, but device complexity increases due to protocol implementation requirements

Engineering Contradiction:
Improveautomation efficiencyVSAvoidprotocol implementation complexity
Core Design Contradiction:
ProductivityVSDevice complexity

Solution Approach 1:

The G.8032 protocol provides multi-functionality by combining ring owner selection, uplink management, and failure detection capabilities into a single standardized protocol suite. This universal approach allows network modules to handle multiple responsibilities (heartbeat monitoring, owner election, uplink designation) through one integrated protocol rather than requiring separate mechanisms for each function, thereby reducing overall system complexity while enabling automation.

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

4Productivity

If rapid automated failover is implemented, then service continuity is improved, but the system requires complex coordination protocols and messaging mechanisms

Engineering Contradiction:
Improveservice continuityVSAvoidcoordination protocol complexity
Core Design Contradiction:
ProductivityVSDevice complexity

Solution Approach 1:

The system performs preliminary actions by pre-establishing backup uplinks and configuring the G.8032 protocol parameters before failures occur. Ring members are pre-configured with knowledge of their potential roles and the failure detection thresholds. When failures occur, these pre-configured elements enable immediate automated response without requiring complex real-time decision-making or coordination, thus achieving rapid failover with manageable protocol complexity.

Inventive Principle:
Principle #10Preliminary action

Data Source

PatentUS11108623B2Rapid owner selection
Publication Date: 2021.08.31 HEWLETT PACKARD ENTERPRISE DEV LP
  • US11108623B2 patent drawing
  • US11108623B2 patent drawing
  • US11108623B2 patent drawing

AI summary

Systems and methods address automated ring owner selection for a ring topology network. A new ring owner may be selected based on failure of a current ring owner. The new ring owner may assume a ring ownership role by a) detecting a missing Ownership Select Message (OSM); b) detecting missing Continuity Check Protocol (CCP) messages; and c) determining that the current ring owner is an adjacent network module connected via an external link of a management network. A signal fail (SF) condition may also be present. Upon detection of adequate role changing conditions, a new ring owner may assume a ring ownership role, transmit an OSM and possibly select a new active uplink.