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DevOps & Automation · Advanced

gRPC Network Management Interface (gNMI)

An OpenConfig gRPC-based protocol for retrieving and modifying configuration and streaming telemetry using YANG-modeled paths.

Definition

gNMI defines four RPCs: Capabilities, Get, Set, and Subscribe. Subscribe supports STREAM (sample or on-change), ONCE, and POLL modes. Encodings include JSON, JSON_IETF, and Protobuf. gNOI provides related operational commands.

Example

gnmic -a r1:57400 subscribe --path /interfaces/interface/state/counters --mode stream --stream-mode sample

Exam tip

Remember the four RPCs and that gNMI rides on gRPC over HTTP/2 with TLS.

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