Getting started

Required feature sets for each service type are described with configuration examples in this guide; related show commands that you can use to view and verify specific configuration information are included in Show commands.

Use this guide as a one-stop reference for basic service configuration. Where applicable, links to the SR OS customer documentation are provided in this guide for additional reading.

This guide does not provide detailed information about service types and is not intended to replace the SR OS customer documentation listed in the 7450 ESS, 7750 SR, and 7950 XRS Guide to Documentation. For detailed information about service features and options, see the SR OS customer documentation WebHelp or the Nokia Doc Center.

This guide is organized into functional chapters and provides concepts and descriptions of the implementation flow, as well as Command Line Interface (CLI) syntax and command usage.

Command outputs shown in this guide are examples only; actual displays may differ depending on supported functionality and user configuration.

This section describes the general conventions used in this guide.

Unless otherwise indicated, this guide uses MD-CLI command syntax. Required feature sets for each service type are described with configuration examples; related show command examples are described in Show commands. All configuration examples shown in this guide are in the MD-CLI full context format. The reference chassis used is the 7750 SR-1, and the software version is SR OS Release 25.7.R1. Use the show system info command to verify the chassis model and software version of your router.

The following figure shows the services for which basic step-by-step configurations and show command examples are described in this guide.

The following figure shows the topology used for the configuration examples in this guide. The topology consists of four Provider Edge (PE) routers, two Provider (P) routers, and four Customer Edge (CE) routers. All configuration examples in this guide are specific to PE routers. For configuration on other routers, see their containerlab startup configuration files for details.

The following figure shows the IPv4 addressing used for the configuration examples in this guide.

All configuration used in this guide, along with complete working configurations for the reference topology, are available for deployment in Containerlab at https://github.com/nokia/sros-docs-lab.

The following table lists the MD-CLI commands commonly used in this guide. For a complete list of SR OS CLI trees and command descriptions, see 7450 ESS, 7750 SR, 7950 XRS, and VSR MD-CLI Command Reference Guide. For a comparison of the SR OS MD-CLI with those used by other OS, see 7450 ESS, 7750 SR, 7950 XRS, and VSR MD-CLI Quick Reference Guide.