What port is designated for submitting custom metrics to the Datadog Agent using DogStatsD?

The port designated for submitting custom metrics to the Datadog Agent using DogStatsD is 8125. This port is specifically utilized for DogStatsD, which is a simplified version of the original StatsD, designed to provide enhanced functionalities suitable for Datadog's environment.

DogStatsD allows developers to send metrics in a flexible format, including support for tags and additional features that help in aggregating data effectively. By default, the Datadog Agent listens on port 8125 for these DogStatsD metrics, ensuring that any custom metrics, events, or service checks can be transmitted seamlessly from applications directly to the Datadog Agent.

In contrast, other ports mentioned in the options are not associated with DogStatsD. Understanding the specific use of port 8125 is crucial for effectively sending custom metrics to the Datadog platform, as it ensures that your telemetry data is captured and reported accurately for observability and monitoring purposes.