Juniper Apstra's Intent-Based Analytics (IBA) probes query the Apstra graph database to validate the intended state against the actual operational state of the network. The core component of a probe that specifies which devices, interfaces, or other network objects (represented as nodes in the database) to analyze is the Graph Query. This query selects a set of relevant nodes from the graph database, and the probe's processing logic is then applied to this set.

A. Reference design schema

The reference design schema defines the overall structure and relationships allowed in a blueprint, not the specific objects for a single probe.

C. Database nodes

Database nodes are the objects themselves (e.g., a switch). The graph query is the mechanism used to select these nodes for the probe.

D. Node-edge relationship

This describes the connection between two nodes in the graph database. A graph query traverses these relationships to find the target nodes.

1. Juniper Apstra User Guide, "Intent-Based Analytics > Probes". This section describes the components of a probe, stating, "The first stage of any probe is a graph query that returns a set of nodes."

2. Juniper TechLibrary, "Understanding Apstra Intent-Based Analytics". The documentation explains, "An IBA probe consists of a graph query that selects a set of nodes from the graph..."