Link Aggregation Group Configuration via Probe Message Verification
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Solution Overview
Problem
The complexity of configuring link aggregation groups (LAGs) in network switching products makes it challenging to determine and manage proper network configurations, leading to potential configuration errors and inefficiencies in network traffic forwarding.
Innovation Solution
A network switching device and method that transmit probe messages to neighboring switches to receive and verify remote switch and LAG identifiers, allowing for the creation and assignment of ports to either existing or new LAGs based on identifier matches, ensuring accurate configuration and redundancy in network links.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If link aggregation groups are implemented to improve network redundancy and traffic handling, then network reliability and flexibility are improved, but configuration complexity increases
Solution Approach 1:
The system performs self-configuration by automatically detecting remote switch and LAG identifiers through probe messages and autonomously determining port assignments to appropriate LAGs without requiring manual configuration, thereby reducing configuration complexity while maintaining reliability
Solution Approach 2:
The system uses probe messages to exchange identifier information between neighboring switches and applies feedback logic to compare received identifiers with stored ones, automatically adjusting port assignments based on match results to resolve configuration complexity
2Productivity
If manual configuration methods are used for LAGs, then configuration control is maintained, but configuration errors increase and efficiency decreases
Solution Approach 1:
The system replaces manual configuration operations with automated electronic probe message exchange and identifier comparison processes, eliminating human error while improving configuration efficiency and accuracy simultaneously
3Manufacturing precision
If probe messages are transmitted to verify remote identifiers, then configuration accuracy is improved, but network traffic overhead increases
Solution Approach 1:
The system transmits probe messages selectively during LAG configuration events rather than continuously, performing the verification action only when necessary to establish or update port assignments, thereby maintaining accuracy while minimizing unnecessary network traffic overhead
Data Source
AI summary
A system and method of configuration of link aggregation groups includes a control unit and a port coupled to the control unit and configured to couple the network switching device to a neighboring switch. The control unit is configured to transmit a probe message to the neighboring switch, receive a remote switch identifier and link aggregation group (LAG) identifier from the neighboring switch, determine whether the remote switch identifier matches a previously received remote switch identifier and the remote LAG identifier matches a previously received remote LAG identifier. When both match, determine a first LAG associated with the previously received remote switch identifier and the previously received remote LAG identifier and assign the port to the first LAG. When both do not match, to create a second LAG, assign the port to the second LAG, and associate the remote switch identifier and the remote LAG identifier with the second LAG.