Automatic Virtual Chassis Formation via Zero Touch Provisioning
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Solution Overview
Problem
Network devices without preconfigured virtual chassis interfaces require manual configuration to join a virtual chassis, which is resource-intensive, time-consuming, and prone to human error.
Innovation Solution
A network device communicates with a bootstrap device to obtain information about a virtual chassis, determines its connection to another device, and converts its interface to enable automatic inclusion in the virtual chassis, allowing for automatic formation and provisioning.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If manual configuration is used to join network devices to a virtual chassis, then the configuration can be completed, but the process is resource-intensive, time-consuming, and prone to human error
Solution Approach 1:
The network device automatically discovers the virtual chassis and configures itself by converting its network interface to a virtual chassis interface based on information obtained from a bootstrap device, eliminating the need for manual configuration and reducing both time and errors
Solution Approach 2:
The bootstrap device pre-provisions the network device with virtual chassis information before the device joins the chassis, enabling automatic configuration upon connection without requiring manual setup
2Productivity
If automatic formation of virtual chassis is implemented, then provisioning efficiency is improved, but the device requires preconfigured interfaces and automated protocols
Solution Approach 1:
The network interface is pre-configured with the capability to be converted to a virtual chassis interface, and the bootstrap device prepares the necessary configuration information in advance, enabling automatic formation without increasing operational complexity
Solution Approach 2:
The bootstrap device acts as an intermediary that provides virtual chassis information to the network device, enabling automatic configuration without requiring complex peer-to-peer negotiation protocols between devices
Data Source
AI summary
A network device may obtain information concerning a virtual chassis that indicates that the network device and an additional network device are to be included in the virtual chassis. The network device may determine, based on the information concerning the virtual chassis, that the network device is connected to the additional network device, wherein the network device is connected to the additional network device via a link between a network interface of the network device and a network interface of the additional network device. The network device may cause the network interface of the network device to be converted to a virtual chassis interface and the network interface of the additional network device to be converted to a virtual chassis interface to enable the network device and the additional network device to be included in the virtual chassis to allow bootstrapping of the virtual chassis as a single logical device.