Overview

Details the operating system's modular design, file systems, and boot processes. It guides users through CLI access methods, command modes, and procedures for upgrading software or switching between autonomous and controller modes.

Software package and architecture

Explains the modular design of Cisco IOS XE, including consolidated packages and individual subpackages. Learn how these components interact to improve system resiliency and resource allocation.

Cisco IOS XE software

Describes procedures to establish local and remote connections to the router's command-line interface. This section describes console setup, secure remote access, and navigation tools like keyboard shortcuts to help you manage the device software.

Deploy IOS-XE and SD-WAN

Explains how to manage device operation modes using a single software image. Learn how to switch between autonomous and controller modes to enable SD-WAN functionality or utilize the Plug and Play discovery process for automated mode selection. You can use the universalk9 image to deploy both Cisco IOS XE SD-WAN and Cisco IOS XE on Cisco IOS XE devices. This helps in seamless upgrades of both the SD-WAN and non SD-WAN features and deployments.

Software upgrade

Use this procedure to update the ROMMON and IOS XE images simultaneously. This process ensures the device supports new hardware features and maintains critical software dependencies across the platform.