Grafana dashboard: RARE/freeRouter - BFD states
Description: Display BFP state metrics

`scope:local` to freeRouter node

freeRouter Prometheus configuration: (copy & paste in freeRouter CLI)
* Create hardware and software sensor
```
sensor bfd4
path bfd4/peer/peer
prefix freertr-bfd4
key name bfd4/peer
command sho ipv4 bfd inet neighbor
prepend bfd4_
name 1 ip=
replace \. _
column 2 name state
column 2 replace down 0
column 2 replace init 1
column 2 replace shut -1
column 2 replace up 2
.
exit

sensor bfd6
path bfd6/peer/peer
prefix freertr-bfd6
key name bfd6/peer
command sho ipv6 bfd inet neighbor
prepend bfd6_
name 1 ip=
replace \: _
column 2 name state
column 2 replace down 0
column 2 replace init 1
column 2 replace shut -1
column 2 replace up 2
.
exit
```
* freeRtr server Prometheus agent configuration

```
server prometheus pr
 sensor bfd4
 sensor bfd6
 vrf <PROMETHEUS_VRF>
 exit
```
* Prometheus server configuration (sample config with 2 nodes)
```
global:
  scrape_interval: 15s
  scrape_timeout: 10s
  evaluation_interval: 30s
alerting:
  alertmanagers:
  - static_configs:
    - targets: []
    scheme: http
    timeout: 10s
scrape_configs:
- job_name: router
  scrape_interval: 15s
  scrape_timeout: 10s
  metrics_path: /metrics
  scheme: http
  static_configs:
  - targets:
    - <prometheus_agent_ip_1>:9001
    labels:
      node_name: <prometheus_agent_1_node_name>
  - targets:
    - <prometheus_agent_ip_2>:9001
    labels:
      node_name: <prometheus_agent_2_node_name>
```


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  "description": "Display BFP state metrics",
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              "id": 3,
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              "to": "",
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              "id": 4,
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      "pluginVersion": "7.2.0",
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          "legendFormat": "",
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      "timeFrom": null,
      "timeShift": null,
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  "schemaVersion": 26,
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  "tags": [
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    "to": "now"
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  "title": "RARE/freeRouter - BFD states",
  "uid": "AoN8AMcGza",
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}