Network Programmability with YANG: The Structure of Network Automation with YANG, NETCONF, RESTCONF, and gNMI

Chapter 5. Telemetry Explained

This chapter covers

• The different telemetry-related terms

• The need to move away from Simple Network Management Protocol (SNMP)

• The telemetry components and how all the different building blocks fit together

• An overview of IETF’s YANG Push and the OpenConfig streaming telemetry

• Some help on selecting your telemetry mechanism

Introduction

This chapter describes the concepts and architecture behind data model–driven telemetry. Reading through this chapter, you might perceive an unmistakable air of “under construction” to this topic—and you would be right, as telemetry keeps evolving in the industry. This chapter covers the state of the art of telemetry and provides some pointers.

Data Model–Driven Telemetry