Network Topology Enforcement for Automated Switch Connection Checks
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Solution Overview
Problem
Data centers face challenges in efficiently configuring and connecting network devices due to manual processes prone to errors, leading to incorrect configurations and connections that hinder optimal functionality.
Innovation Solution
A method and system that utilize a network topology policy and discovery protocols like LLDP to automate the verification of switch connections, sending alerts for improper or missing connections based on predefined roles and network policies.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If manual configuration and connection processes are used for network devices, then flexibility and adaptability are maintained, but error rate increases and productivity decreases
Solution Approach 1:
The system enables self-service through automated topology verification where the network infrastructure automatically detects and reports connection errors. The error detection system operates autonomously by receiving DPDUs from connected switches, verifying topology against policies, and generating alerts without human intervention, thus improving both accuracy and deployment speed simultaneously.
Solution Approach 2:
The patent implements feedback mechanisms where topology verification results are continuously monitored and communicated back to network administrators through alerts. The system receives connection status information, compares it against expected topology, and provides feedback about errors such as incorrect switch connections or missing connections, enabling rapid correction while maintaining high deployment velocity.
2Measurement precision
If manual connection verification is performed, then detection precision can be maintained, but time consumption increases significantly
Solution Approach 1:
The patent replaces manual mechanical verification processes with automated electronic discovery protocols. Instead of physically checking connections manually, the system uses LLDP or CDP protocols to automatically exchange topology information between switches, enabling rapid and accurate verification without time-consuming manual intervention while maintaining high detection precision.
Solution Approach 2:
The system performs preliminary topology verification automatically as switches are connected to the network, before production traffic begins. By proactively verifying connections using discovery protocols and comparing against expected topology, the system prevents errors from propagating while minimizing disruption to network operations, thus achieving both accuracy and speed.
3Reliability
If comprehensive topology verification is implemented, then reliability improves, but system complexity increases
Solution Approach 1:
The patent achieves comprehensive verification with minimal complexity by making existing multi-functional network switches perform additional topology verification functions. The same switches that forward traffic also execute discovery protocols, collect topology information, and generate verification results. This universal approach allows reliable verification without adding dedicated complex verification hardware or significantly increasing system complexity.
Data Source
AI summary
A method and system for enforcing network topology. The method includes receiving, at a first port on a first switch, a second role associated with a second switch, where the second switch is connected to the first switch using the first port, and where the first switch is associated with a first role. The method further includes making a first determination, using the first role, the second role, and a network topology policy, that the first switch should not be connected to the second switch. Sending, in response to the first determination, a first alert to an alert recipient, where the first alert specifies that the first switch is improperly connected to the second switch.