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Yagra documentation

Yagra is an open-source network monitoring system (NMS) that watches network devices and servers over ICMP, SNMP, and API calls — tracking liveness, performance, and thresholds, and raising alerts on anomalies. It ships as Docker containers, with a Rust backend and a React WebUI, and is architected from the start for tens of thousands of nodes and distributed polling: a single-node stack scales out to remote-site pollers and highly available cores by configuration, not rewrite.

  • Active monitoring — ICMP liveness, SNMP v2c/v3 (including GETBULK per-interface collection), HTTP/URL checks with TLS-expiry tracking, DNS resolution monitors, and Cisco Meraki devices via the read-only Dashboard API.
  • Discovery & classification — IP-range discovery, automatic device classification, editable device profiles, collection templates, and a curated MIB/OID catalog.
  • Alert quality — dwell-time hysteresis, flapping detection, dependency suppression with root-cause roll-up, maintenance windows, and notification channels including PagerDuty and Jira Service Management with a native fire/resolve lifecycle.
  • Passive events — syslog, SNMP traps (v1/v2c + informs, decoded to human-readable names), and inbound webhooks, matched against event rules and searchable at scale.
  • Traffic flow — NetFlow v5/v9, IPFIX, and sFlow v5 into a dedicated flow store, with top talkers, ports, protocols, AS conversations, and offline IP→ASN enrichment.
  • Forwarding — a filtered tee that relays received syslog, traps, and flow exports byte-for-byte to a SIEM or collector over UDP/TCP/TLS, or streams normalized rows into BigQuery, from one egress point.
  • Dashboards & reports — widget-based dashboards (shared and per-user), a topology map with dependency states, and scheduled reports with HTML/CSV/PDF export.
  • Troubleshoot analyses & AI RCA — on-demand analyses across metrics, events, and flows (anomaly, correlation, capacity, flap, scan detection, and more), plus an opt-in AI root-cause explanation grounded in the incident’s evidence.
  • Distributed polling — poller pools at remote sites, assigned by location affinity and failed over automatically, with store-and-forward buffering that rides out network partitions without losing metric history.
  • High availability — multiple core instances with automatic leader election and failover, and sessions that survive a failover.
  • Users, roles & SSO — Viewer/Operator/Admin roles, single sign-on via OpenID Connect alongside local accounts, and an audit log of who changed what.
  • MCP for AI clients — an opt-in tool surface at /mcp so an AI assistant can query status, metrics, flows, and events, run Troubleshoot analyses, and perform a few audited write actions. It never configures network devices.

These docs track the latest release of Yagra. Behavior that changed between versions is recorded in the release notes — see the changelog for where to find them and how container images are tagged.