Network Switch Baseband Management Controller for Remote Access

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Solution Overview

Problem

It is challenging for administrators to manage information handling devices, particularly switching devices, without physical access, as existing systems require terminal servers for remote management, leading to increased costs and complexity.

Innovation Solution

The implementation of a baseband management controller (BMC) within the network switch, utilizing the Intelligent Platform Management Interface (IPMI) specification, enables remote management by converting serial information into network packets and vice versa, allowing direct remote access over an internet protocol without the need for a terminal server.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If terminal servers are used for remote management of switching devices, then remote management capability is achieved, but system complexity and cost increase

Engineering Contradiction:
Improveremote management capabilityVSAvoidsystem complexity
Core Design Contradiction:
Ease of operationVSDevice complexity

Solution Approach 1:

The patent extracts the management controller functionality from the main switching device and implements it as a separate baseband management controller (BMC) with dedicated management ports. This extraction allows remote management capabilities to be provided through the BMC without requiring external terminal servers, thereby reducing system complexity while maintaining ease of operation.

Inventive Principle:
Principle #2Taking out (Extraction)

Solution Approach 2:

The baseband management controller is designed to provide multiple functions: it handles remote management connections, converts between serial and network protocols, and manages switching device operations. This multi-functionality consolidates what would otherwise require separate terminal server infrastructure, reducing both complexity and cost while maintaining remote management capability.

Inventive Principle:
Principle #6Universality (Multi-functionality)

2Ease of operation

If terminal servers are used for remote management, then remote access is enabled, but maintenance and licensing costs increase

Engineering Contradiction:
Improveremote access capabilityVSAvoidmaintenance and licensing costs
Core Design Contradiction:
Ease of operationVSQuantity of substance

Solution Approach 1:

The switching device provides its own remote management services through the integrated baseband management controller, eliminating the need for external terminal server infrastructure. The BMC handles protocol conversion and management connections independently, making the system self-sufficient for remote management tasks and eliminating associated licensing and maintenance costs.

Inventive Principle:
Principle #25Self-service

3Ease of operation

If physical access is required to manage switching devices, then direct control is achieved, but operational flexibility is reduced

Engineering Contradiction:
Improvedirect control capabilityVSAvoidoperational flexibility
Core Design Contradiction:
Ease of operationVSAdaptability or versatility

Solution Approach 1:

The baseband management controller acts as an intermediary between remote administrators and the switching device. It receives management commands over the network, converts them to serial protocols, and transmits them to the switching device, thereby enabling direct control capability without requiring physical access and maintaining operational flexibility.

Inventive Principle:
Principle #24Intermediary (Mediator)

Data Source

PatentUS9197490B2System and method for providing remote management of a switching device
Publication Date: 2015.11.24 DELL PROD LP
  • US9197490B2 patent drawing
  • US9197490B2 patent drawing
  • US9197490B2 patent drawing

AI summary

An information handling system is provided. The information handling system includes at least one network switch. The at least one network switch includes a network access port receiving network packets including management information at least one processing unit, the at least one processing unit transmitting and receiving serial information. The at least one network switch also includes a baseband management controller coupled between the network access port and the at least one processing unit, the baseband management controller converting the serial information into network information and converting the network packets into serial information and a remote management terminal coupled to the at least one network switch, the remote management terminal transmitting the network packets including management information to the network switch for remotely managing the network switch.