# Probe dashboards
<a name="nw-probe-db"></a>

You can use a **Probe** dashboard in Network Synthetic Monitor to view the network health indicator (NHI) for a probe, as well as information about round-trip time and packet loss for specific probes. There are two dashboards for probes: an **Overview** page and** Probe details** page.

You can create CloudWatch alarms to set packet loss and round-trip time metric thresholds. When a threshold is reached for a metric, a CloudWatch alarm notifies you. For information on creating probe alarms, see [Probe alarms](cw-nwm-create-alarm.md). 

**To access a probe dashboard**

1. Open the CloudWatch console at [https://console.aws.amazon.com/cloudwatch/](https://console.aws.amazon.com/cloudwatch/), and then, under **Network Monitoring**, choose **Synthetic monitors**.

1. In the **Monitors** section, choose the **Name** link to open the dashboard for a specific monitor.

1. To view the dashboard for a specific probe, choose the **ID** link for the probe.

## Overview page
<a name="nw-probe-db-overview"></a>

The **Overview** page displays the following information for a probe:
+ **Network health** — Network health displays the network health indicator (NHI) value, which pertains only to health of the AWS network. The NHI status is provided as **Healthy** or **Degraded**. A **Healthy** status indicates that Network Synthetic Monitor did not observe issues with the AWS network for a probe. A **Degraded** status indicates that Network Synthetic Monitor observed an issue with the AWS network. The status bar in this section shows the status of the network health indicator over a default time of one hour. Hover over any point in the status bar to view additional details.
+ **Packet loss** — The number of packets that were lost from the source subnet to the destination IP address for this probe.
+ **Round-trip time** — The time it takes, in milliseconds, for a packet from the source subnet to reach the destination IP address, and then come back again. Round-trip time (RTT) is the average RTT observed during the aggregation period.

## Probe details
<a name="nw-probe-db-details"></a>

The **Probe details** page displays information about a probe, including the source and destination. You can also edit the probe, for example, to activate or deactivate it. For more information, see [Working with monitors and probes in Network Synthetic Monitor](nw-monitor-working-with.md).
+ **Probe details** — This section provides general information about the probe, which can't be edited. 
+ **Probe source and destination** — This section displays details about the probe. Choose a **VPC** or **Subnet ID** link to open the VPC or subnet details in the Amazon VPC Console. You can modify a probe, for example, to activate or deactivate it. 
+ **Tags** — View the current tags for a monitor. You can add or remove tags by choosing **Manage tags**. This opens the **Edit probe** page. For more information on editing tags, see [Edit a probe](nw-monitor-probe-edit.md).