Building a Network Operating System Using Linux and Yocto

Explore the challenges and solutions in building a Network Operating System using Linux and Yocto in this informative conference talk. Dive into the size and performance issues encountered when adapting the Linux Kernel for network-specific demands, and learn tricks to overcome them. Follow the journey of the Halon NOS, based on the Openswitch project, as it progressed through various Linux kernel versions. Gain insights into managing expectations and perceptions after kernel upgrades, and discover strategies for upgrading infrastructure in a product development organization. Examine the use of Yocto Layers for implementing Platform Independent and Platform Dependent features in a multiple platform environment. Uncover valuable lessons about PCI software architecture for modular chassis network switches. Topics covered include kernel configuration, critical bug fixes, management perception, Yocto and Open Embedded layers, subsystem upgrades, Linux packages, and PCI architecture issues.

Introduction
Kernel Configuration
Kernel Updates
Critical bug fixes
Management perception
Yocto layers
Open Embedded layer
Yocto layer
Subsystem upgrades
Linux packages
PCI Architecture
PCI Architecture Issues