Here is a network port analyzer that lets you discover more about your Ethernet port. Netool detects various protocols and works with iOS and Android devices. It detects and analyzes information, displaying the results on the app. Use this tool to diagnose issues and share results via e-mail, Evernote, Slack, and other tools.
Netool supports connection to multiple devices in WiFi AP mode. This pocket sized tester and analyzer is available for around $200.