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network adapter

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How to detect ethernet network speed in Windows

Detect the ethernet network speed using PowerShell or WMI is perfect for Windows Server Core. If you ever need to lookup the speed of your ethernet network card in Windows, on the command-line, use one of the following WMIC commands on your PowerShell prompt

Explicit Congestion Notification (ECN) slows down outbound connections

Explicit Congestion Notification is an extension to the Internet Protocol and to the Transmission Control Protocol and is defined in RFC 3168. ECN allows end-to-end notification of network congestion without dropping packets. Windows Server 2012 is the first Windows Server version to enable Explicit Congestion Notification, or ECN, in the TCP stack. This is also known as ECN Capability in Windows.

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