# tt_is_connected

[<< Home](../index.md) | [<< Metrics](../metrics.md)

## Name

### Prometheus Metric Name

```
tt_is_connected
```

### Metric Path (tt-telemetry)

Schema:

```
{hostname}/telemetry/connections/{endpoint_name}/tt_is_connected
```

Example path:

```
bh-glx-c09u02/telemetry/connections/collector.example.com_8080/tt_is_connected
```

## Description

Whether the telemetry system is connected to a specific collector endpoint. Each configured collector endpoint has its own instance of this metric. The endpoint URL is normalized for use in the metric path (protocol stripped, slashes converted to underscores).

## Values

**Type:** Boolean

**Units:** None

**Allowable values:**
- **True (1)**: The telemetry system is connected to this collector.
- **False (0)**: The connection to this collector is down.

## Prometheus Labels

|Label Name|Value|
|---|---|
|hostname|The host from which the metric was collected.|
|hall|The datacenter hall where the host is located. Sourced from the Factory System Descriptor (FSD).|
|aisle|The datacenter aisle where the host is located. Sourced from the Factory System Descriptor (FSD).|
|rack|The rack number where the host is located. Sourced from the Factory System Descriptor (FSD).|
|shelf_u|The shelf U position in the rack where the host is located. Sourced from the Factory System Descriptor (FSD).|
|endpoint|The full endpoint URL of the telemetry collector.|
|endpoint_name|A normalized version of the endpoint URL (protocol stripped, slashes converted to underscores).|