Programming Nokia's
SR Linux

Course overview

This hands-on instructor-led course describes the programmability of SR Linux networking features using gNMI or JSON-RPC, and the programming of SR Linux itself by adding third-party applications with the NDK and developing customized CLI commands.

Nokia Service Router Linux (SR Linux) is an open, extensible and programmable network operating system (NOS) based on the Linux kernel. It implements from the ground up a model-driven architecture combined with a field-proven routing protocol stack.

SR Linux provides three key components to enable network automation and meet growing DevOps and agility requirements for a modern data center:
 

• A comprehensive programmatic API with scalable streaming telemetry: Every SR Linux feature can be configured and monitored using a gNMI or  JSON-RPC Application Programming Interface (API).

• A Netops Development Kit (NDK) that allows third-party applications to be fully integrated into SR Linux using generic Remote Procedure Call (gRPC) services. 

• A customizable Command Line Interface (CLI): a python-based plugin framework lets operators develop your own show and tools CLI commands, with full access to the state/configuration datastore.

Course objectives

After completing the course, participants should be able to:
 

• Describe the high-level architecture of SR Linux and its network automation tool-set

• Explain the structure of the SR Linux YANG data model

• Understand gRPC and protocol buffers and how they provide the foundations of SR Linux's programmatic capabilities 

• Write Python programs to configure and monitor SR Linux using its gNMI and/or JSON-RPC APIs, including streaming telemetry. 

• Design and onboard their own python-written application into the SR Linux platform

• Code their own customized CLI commands, using the SR Linux CLI plugin-framework