Edge Security Processing With Selective Review Suspension

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Solution Overview

Problem

The migration to edge security solutions in network security results in a tradeoff between costly processing power and increased throughput, leading to sub-standard security in corporate networks.

Innovation Solution

Implementing systems and methods for selectively suspended network security processing, where a subset of network traffic sessions are processed at the edge, reducing the need for intensive security processing at a central system and minimizing WAN bandwidth usage.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If intensive security processing is implemented at the network edge, then security effectiveness is improved, but processing cost and device complexity increase

Engineering Contradiction:
Improvesecurity effectivenessVSAvoidprocessing cost
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The edge device performs self-assessment of its own security risk level and autonomously suspends security processing when operating in low-risk environments. The system grants itself permission to bypass security protocols based on environmental trust indicators, eliminating the need for continuous centralized verification and reducing processing overhead while maintaining security effectiveness.

Inventive Principle:
Principle #25Self-service

Solution Approach 2:

The security processing intensity dynamically adjusts based on the security grant state. When a security grant is received indicating a low-risk environment, the edge device transitions from intensive security processing to suspended or minimal processing. This dynamic adaptation allows the system to optimize processing cost while maintaining security effectiveness by matching processing intensity to actual risk levels.

Inventive Principle:
Principle #15Dynamics

2Reliability

If all network traffic is sent to centralized security system for processing, then security review thoroughness is improved, but WAN bandwidth consumption increases

Engineering Contradiction:
Improvesecurity review thoroughnessVSAvoidWAN bandwidth consumption
Core Design Contradiction:
ReliabilityVSLoss of energy

Solution Approach 1:

The patent extracts the security review function from the centralized system and implements it locally at the edge device. By suspending security processing at the edge when operating in trusted environments, the system eliminates unnecessary WAN traffic for security reviews while maintaining thorough review capability when needed. This extraction reduces WAN bandwidth consumption without compromising security review thoroughness for traffic that requires it.

Inventive Principle:
Principle #2Taking out (Extraction)

Solution Approach 2:

Instead of applying full security processing to all traffic, the system applies partial or suspended security processing to traffic in low-risk environments. The security grant mechanism allows the edge device to perform only essential security functions locally while suspending intensive processing that would otherwise require WAN communication. This partial action approach reduces WAN bandwidth consumption while maintaining adequate security review thoroughness for the specific traffic context.

Inventive Principle:
Principle #16Partial or excessive action

3Speed

If edge devices perform autonomous security decisions, then response speed is improved, but security policy compliance becomes more difficult to ensure

Engineering Contradiction:
Improveresponse speedVSAvoidsecurity policy compliance
Core Design Contradiction:
SpeedVSDevice complexity

Solution Approach 1:

The system implements feedback through security grant mechanisms where the centralized security system provides authoritative decisions to the edge device. The edge device receives security grants that contain policy compliance information and uses this feedback to guide its autonomous decisions. This feedback loop ensures that autonomous edge decisions remain aligned with centralized security policies while maintaining fast local response speeds.

Inventive Principle:
Principle #23Feedback

Solution Approach 2:

The centralized security system performs preliminary security assessment and issues security grants before traffic reaches the edge device. These pre-established security grants contain predetermined policy compliance rules that the edge device simply follows during autonomous operation. This preliminary action eliminates the need for complex real-time policy evaluation at the edge while ensuring compliance, as the edge device merely executes pre-approved security decisions.

Inventive Principle:
Principle #10Preliminary action

Data Source

PatentUS12506711B2Systems and methods for network edge selection of network security processing
Publication Date: 2025.12.23 FORTINET INC
  • US12506711B2 patent drawing
  • US12506711B2 patent drawing
  • US12506711B2 patent drawing

AI summary

Various embodiments provide embodiments provide systems and methods for performing edge processing using selectively suspended network security processing.