---
title: Collecting Network Connection Metrics
framework: network
role: sampleCode
role_heading: Sample Code
path: network/collecting-network-connection-metrics
---

# Collecting Network Connection Metrics

Use reports to understand how DNS and protocol handshakes impact connection establishment.

## Overview

Overview note: This sample code project is associated with WWDC 2019 session 713: Advances in Networking, Part 2.

## See Also

### Collecting Connection Metrics

- [requestEstablishmentReport(queue:completion:)](network/nwconnection/requestestablishmentreport(queue:completion:).md)
- [NWConnection.EstablishmentReport](network/nwconnection/establishmentreport.md)
- [startDataTransferReport()](network/nwconnection/startdatatransferreport().md)
- [NWConnection.PendingDataTransferReport](network/nwconnection/pendingdatatransferreport.md)
- [NWConnection.DataTransferReport](network/nwconnection/datatransferreport.md)