BMC IP Management via LLDP Verification
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Solution Overview
Problem
Incorrect or tampered baseboard management controller (BMC) IP addresses in servers hinder effective monitoring by management terminals in data centers, as they rely on accurate BMC IP addresses to collect and manage server states.
Innovation Solution
A system utilizing Link Layer Discovery Protocol (LLDP) packages transmitted by switches to servers, which are decrypted to obtain port and switch identification information, allowing management terminals to verify and display inconsistencies in BMC IP addresses, enabling correct assignment and monitoring.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If BMC IP address is manually configured in servers, then configuration flexibility is improved, but address correctness and security deteriorate due to incorrect setting or tampering
Solution Approach 1:
The patent introduces an intermediary system consisting of switches and management terminals that automatically assign and verify BMC IP addresses. The switch acts as a mediator between the server and the management terminal, automatically allocating IP addresses from a predefined pool and transmitting them through LLDP packets, thereby eliminating manual configuration errors and tampering risks while maintaining configuration flexibility.
Solution Approach 2:
The patent implements a feedback mechanism where the management terminal verifies the assigned BMC IP address by sending test packets to the server. If the IP address is incorrect or has been tampered with, the system detects the inconsistency and can reassign a correct IP address, ensuring continuous monitoring and correction of address validity.
2Ease of operation
If manual BMC IP address configuration is used, then setup simplicity is improved, but monitoring reliability deteriorates when addresses are incorrect or tampered
Solution Approach 1:
The system enables self-service automatic IP address assignment where the switch automatically allocates BMC IP addresses from a predefined pool without requiring manual intervention. The management terminal then automatically verifies the assigned addresses by sending test packets, ensuring both ease of setup and monitoring reliability through automated processes.
3Measurement precision
If BMC IP address verification is implemented, then address accuracy is improved, but system complexity increases due to additional verification mechanisms
Solution Approach 1:
The patent leverages the existing LLDP protocol, which is already widely supported by modern switches and servers, to carry BMC IP address verification. The switch's existing LLDP functionality is extended to include IP address assignment and verification, avoiding the need for specialized hardware or protocols and minimizing additional system complexity while achieving high address accuracy.
Data Source
AI summary
A system to manage internet protocol address (IP) of baseboard management controller (BMC) includes switches, servers, and a management terminal. Each switch transmits to servers link layer discovery protocol in information packets, giving information of itself and a port of itself. Each server transmits obtained information of the switch and the port of the switch and a BMC IP of that server. The management terminal determines whether the BMC IP transmitted from each server is consistent with an assigning BMC IP corresponding to the port of the switch transmitted from the sever according to a relationship between each port of each switch, identification information of each server and assigning BMC IP of each server and displays the identification information of the server in the event that incorrect BMC IP is transmitted to enable a correction to be made. A method for managing BMC IP is also disclosed.