Network Element Manager Identification via Layer-Two Protocols
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Solution Overview
Problem
Network element managers face challenges in distinguishing between logical and physical connections, particularly when tunnels are configured to relay specific layer-two control protocols, and in verifying the correct tunnel configuration, leading to difficulties in managing network topologies accurately.
Innovation Solution
The method involves an element manager retrieving identification information from neighboring network elements using multiple layer-two control protocols, prioritizing protocols like LLDP, OAM, and LACP, and determining whether connections are logical or physical based on this information, while also verifying tunnel configurations to ensure compliance with desired settings.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If the element manager uses multiple layer-two control protocols to retrieve identification information, then the accuracy of distinguishing logical and physical connections is improved, but the complexity of the management system increases
Solution Approach 1:
The patent segments the connection identification process into distinct protocol handlers for different layer-two control protocols (LLDP, LACP, OAM). Each protocol is processed independently with its own retrieval and interpretation logic, allowing the system to handle multiple protocols without creating a monolithic complex structure. This segmentation enables accurate distinction between logical and physical connections while maintaining manageable system complexity through modular design.
2Measurement precision
If the element manager manually configures connection information, then the accuracy of network topology representation is improved, but the time and effort required for network management increases
Solution Approach 1:
The patent implements self-service by enabling network elements to automatically generate and provide their own identification information through standardized layer-two control protocols. The elements autonomously participate in the discovery process by responding to protocol-specific queries from the element manager, eliminating the need for manual configuration while maintaining accurate network topology representation. This automatic information exchange significantly reduces the time and effort required for network management.
3Extent of automation
If the element manager pings a range of addresses to discover elements, then the automation of element discovery is improved, but the time required to locate network elements increases
Solution Approach 1:
The patent introduces layer-two control protocols as intermediaries between the element manager and network elements. These protocols serve as efficient mediators that enable direct, targeted communication with specific elements or groups of elements, replacing the brute-force approach of pinging all addresses. The intermediary protocols facilitate rapid element discovery by leveraging existing network infrastructure and protocol-specific optimization, thereby maintaining high automation while significantly reducing discovery time.
4Adaptability or versatility
If the tunnel is configured to relay specific layer-two control protocols, then the control over network traffic is improved, but the difficulty of verifying tunnel configuration increases
Solution Approach 1:
The patent implements feedback mechanisms where network elements actively respond to layer-two control protocol queries, providing confirmation of their identity and connection status. The element manager uses these protocol-specific responses to verify whether tunnels are correctly configured to relay the intended protocols. This feedback loop enables automatic verification of tunnel configuration by comparing expected protocol relay behavior with actual observed behavior, making it easier to detect and correct configuration errors while maintaining fine-grained traffic control.
Data Source
AI summary
If a selected packet switch connected to a neighboring packet switch makes first information identifying the neighboring packet switch available, element managers and processes retrieve the first information from the selected packet switch. The first information is derived by the selected packet switch from communication via a first protocol between the selected packet switch and the neighboring packet switch. If the first information is not available to the element manager and if the selected packet switch makes second information identifying the neighboring packet switch available to the element manager, the element managers and processes retrieve the second information from the selected packet switch. The second information is derived from communication via a second protocol between the selected packet switch and the neighboring packet switch and the first and second protocols are different protocols.