Link Aggregation Autoconfiguration via Topology Probing
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Solution Overview
Problem
Conventional link aggregation in data centers requires manual configuration by administrators with knowledge of network topology, which can be problematic when administrators lack this knowledge or familiarity with the network.
Innovation Solution
A method and system that automatically determines network topology and configures link-layer link aggregation using multiple protocols to identify available NICs and establish optimal link aggregation configurations, eliminating the need for manual input and enabling setup even by administrators unfamiliar with the network.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If manual configuration of link aggregation is used, then configuration precision can be controlled, but ease of operation deteriorates due to administrator knowledge requirements
Solution Approach 1:
The system automatically discovers network topology and configures link aggregation without administrator intervention. The link aggregation controller autonomously probes network devices, determines topology, and establishes aggregation configurations, eliminating the need for manual configuration while ensuring precision through automated discovery protocols
Solution Approach 2:
The system performs preliminary network topology discovery and device identification before configuration is needed. By pre-probing network devices and establishing topology information in advance, the system prepares all necessary data for automatic link aggregation configuration, resolving the contradiction between ease of operation and configuration precision
2Extent of automation
If automated link aggregation configuration is implemented, then ease of operation improves, but device complexity increases due to multiple protocols required
Solution Approach 1:
The link aggregation controller is designed with multi-functionality to handle multiple network protocols (LLDP, CDP, ARP, ICMP) within a single device. This universal capability allows the system to perform automated topology discovery and configuration using various protocols without requiring separate specialized devices, thus increasing automation while managing device complexity through consolidation
3Manufacturing precision
If network topology discovery is performed, then configuration precision improves, but loss of time increases due to probing requirements
Solution Approach 1:
The system performs network topology discovery and device probing in advance before link aggregation configuration is required. By pre-establishing topology information through protocol probing (LLDP, CDP, ARP, ICMP), the system prepares all necessary configuration data beforehand, ensuring precision while minimizing the time required during actual configuration deployment
Solution Approach 2:
The system uses feedback from network device responses to probing protocols to dynamically adjust topology discovery. By receiving feedback from probed devices about their capabilities and current configurations, the system optimizes the discovery process, gathering necessary precision information while reducing redundant probing time through intelligent feedback-based decision making
Data Source
AI summary
A computing device identifies a plurality of network interface controllers (NICs) that are available for link aggregation. The computing device probes a network using a plurality of protocols to detect a topology of at least one network to which the plurality of NICs are connected. The computing device automatically establishes a link aggregation configuration including one or more of the plurality of NICs based on the determined network topology.