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SNMP integration for Grafana Cloud

The SNMP integration lets you monitor any generic SNMP (Simple Network Management Protocol) device.

This integration includes 2 useful alerts and 1 pre-built dashboard to help monitor and visualize SNMP metrics.

Before you begin

The device you are monitoring must support reporting device data through SNMP protocol.

The instructions for enabling SNMP vary for each device. The SNMP daemon can also be installed on any linux device. Once SNMP is enabled for the device, install the Grafana agent where it can access the SNMP device on SNMP ports UDP/TCP 161 and 162 using the instructions given below.

Install SNMP integration for Grafana Cloud

  1. In your Grafana Cloud stack, click Connections in the left-hand menu.
  2. Find SNMP and click its tile to open the integration.
  3. Review the prerequisites in the Configuration Details tab and set up Grafana Agent to send SNMP metrics to your Grafana Cloud instance.
  4. Click Install to add this integration’s pre-built dashboard and alerts to your Grafana Cloud instance, and you can start monitoring your SNMP setup.

Post-install configuration for the SNMP integration

This integration is configured to work with the snmp_exporter, which is embedded in Grafana Agent.

Enable the integration by adding the provided snippets to your agent configuration file.

Replace the <host_address_*> tags with the addresses of the relevant SNMP devices. Also configure the walk params according to your configuration.

For a full description of configuration options see how to configure the snmp block in the agent documentation.

Configuration snippets for Grafana Agent

Below integrations, insert the following lines and change the URLs according to your environment:

yaml 
  snmp:
    enabled: true
    relabel_configs:
      - action: replace
        source_labels: [job]
        regex: (^.*snmp)\/(.*)
        target_label: job_snmp
        replacement: $1
      - action: replace
        source_labels: [job]
        regex: (^.*snmp)\/(.*)
        target_label: snmp_target
        replacement: $2
    snmp_targets:
      - name: network_switch_1
        address: '<host_address_1>'
        module: if_mib
        auth: public_v2
      - name: network_switch_2
        address: '<host_address_2>'
        module: if_mib
        auth: public_v2

Full example configuration for Grafana Agent

Refer to the following Grafana Agent configuration for a complete example that contains all the snippets used for the SNMP integration. This example also includes metrics that are sent to monitor your Grafana Agent instance.

yaml 
integrations:
  prometheus_remote_write:
  - basic_auth:
      password: <your_prom_pass>
      username: <your_prom_user>
    url: <your_prom_url>
  agent:
    enabled: true
    relabel_configs:
    - action: replace
      source_labels:
      - agent_hostname
      target_label: instance
    - action: replace
      target_label: job
      replacement: "integrations/agent-check"
    metric_relabel_configs:
    - action: keep
      regex: (prometheus_target_.*|prometheus_sd_discovered_targets|agent_build.*|agent_wal_samples_appended_total|process_start_time_seconds)
      source_labels:
      - __name__
  # Add here any snippet that belongs to the `integrations` section.
  # For a correct indentation, paste snippets copied from Grafana Cloud at the beginning of the line.
  snmp:
    enabled: true
    relabel_configs:
      - action: replace
        source_labels: [job]
        regex: (^.*snmp)\/(.*)
        target_label: job_snmp
        replacement: $1
      - action: replace
        source_labels: [job]
        regex: (^.*snmp)\/(.*)
        target_label: snmp_target
        replacement: $2
    snmp_targets:
      - name: network_switch_1
        address: '<host_address_1>'
        module: if_mib
        auth: public_v2
      - name: network_switch_2
        address: '<host_address_2>'
        module: if_mib
        auth: public_v2
logs:
  configs:
  - clients:
    - basic_auth:
        password: <your_loki_pass>
        username: <your_loki_user>
      url: <your_loki_url>
    name: integrations
    positions:
      filename: /tmp/positions.yaml
    scrape_configs:
      # Add here any snippet that belongs to the `logs.configs.scrape_configs` section.
      # For a correct indentation, paste snippets copied from Grafana Cloud at the beginning of the line.
metrics:
  configs:
  - name: integrations
    remote_write:
    - basic_auth:
        password: <your_prom_pass>
        username: <your_prom_user>
      url: <your_prom_url>
    scrape_configs:
      # Add here any snippet that belongs to the `metrics.configs.scrape_configs` section.
      # For a correct indentation, paste snippets copied from Grafana Cloud at the beginning of the line.
  global:
    scrape_interval: 60s
  wal_directory: /tmp/grafana-agent-wal

Dashboards

The SNMP integration installs the following dashboards in your Grafana Cloud instance to help monitor your system.

  • SNMP Overview

SNMP Overview

image

Alerts

The SNMP integration includes the following useful alerts:

AlertDescription
SNMPTargetDownCritical: SNMP Target is down.
SNMPTargetInterfaceDownWarning: Network interface on SNMP target is down.

Metrics

The most important metrics provided by the SNMP integration, which are used on the pre-built dashboard and Prometheus alerts, are as follows:

  • ifHCInOctets
  • ifHCOutOctets
  • ifInErrors
  • ifMtu
  • ifOperStatus
  • ifOutErrors
  • ifPhysAddress
  • ifSpeed
  • ifType_info
  • snmp_scrape_duration_seconds
  • sysUpTime

Changelog

md 
# 0.0.3 - September 2023

* New Filter Metrics option for configuring the Grafana Agent, which saves on metrics cost by dropping any metric not used by this integration. Beware that anything custom built using metrics that are not on the snippet will stop working.

# 0.0.2 - November 2022

* Add integration status panel

# 0.0.1 - September 2022

* Initial release

Cost

By connecting your SNMP instance to Grafana Cloud, you might incur charges. To view information on the number of active series that your Grafana Cloud account uses for metrics included in each Cloud tier, see Active series and dpm usage and Cloud tier pricing.

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