Signaling Node Hysteresis for Fluctuating SS7 Links
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Solution Overview
Problem
Current SS7 signaling networks face significant disruptions due to fluctuating signaling links, which require manual detection and intervention, leading to network congestion and inefficiencies.
Innovation Solution
A signaling node with a link controller and link blocking module that monitors link states and applies hysteresis to automatically detect and block fluctuating links, preventing them from carrying SS7 traffic until stable, while allowing MTP level two messages for error monitoring.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If manual detection and intervention is used for fluctuating links, then network reliability can be maintained through human oversight, but network congestion and downtime increase due to delayed response
Solution Approach 1:
The signaling node automatically detects fluctuating links and applies blocking without requiring manual intervention. The system monitors link states, counts failures during probationary periods, and autonomously blocks links that exceed the threshold, eliminating the need for human detection and response while reducing downtime and network congestion.
2Object-generated harmful factors
If the link is blocked automatically based on failure count, then network congestion is reduced by preventing excessive SS7 traffic, but the complexity of the signaling node increases
Solution Approach 1:
The system changes the state of the signaling link between in-service and blocked based on the count of failures during probationary periods. When the failure count exceeds the blocking parameter threshold, the link state changes to blocked, preventing SS7 traffic and reducing network congestion. This parameter-based approach provides automatic control without requiring complex manual management systems.
3Stability of the object's composition
If the link is placed in probationary period after alignment, then link stability is improved through monitoring, but the link may continue to fluctuate and fail repeatedly
Solution Approach 1:
The system continuously monitors the link state during the probationary period and uses feedback from failure detection to trigger blocking when the threshold is exceeded. This feedback mechanism allows the system to detect repeated fluctuations and take corrective action by blocking the link, preventing continuous instability while maintaining the probationary monitoring period for initial link stabilization.
Data Source
AI summary
A signaling node within a telecommunications network automatically detects that a signaling link is fluctuating in and out of service and provides hysteresis to the fluctuating signaling link. The signaling node includes a link controller that monitors the state(s) of the signaling link over a time period and a link blocking module that blocks the signaling link from carrying SS7 traffic when the signaling link fluctuates between a failed state and a stable state over the time period.