To find the name of your network interface card, run the following command from the command terminal: ifconfig To proceed, you'll need to know the name of your network interface card. These settings include Speed, Duplex, Auto-Negotiation, and many other parameters. How to Use Ethtool Command to Configure NIC SettingsĮthtool is a Network Interface Card configuration command that allows you to retrieve information and change your NIC settings. The connection is working, but the performance is reduced as the data transfer rate is asymmetrical and might lead to packet loss.
However, when a large amount of data is sent from either end, the speed drops significantly. Single packets and small amounts of data do not cause immediate issues. This situation is considered a duplex mismatch.Ī duplex mismatch does not stop communication completely. As a rule, the auto-negotiating end of the connection is going to use half-duplex while the other end might be at full-duplex. The end of the connection with an active auto-negotiation is still able to detect the speed of the other end, but cannot correctly detect the duplex mode. When a device, with enabled auto-negotiation, connects to a device that is not using this signaling method, the process does not work. It is recommended to keep Auto-Negotiation enabled as it allows devices to choose the most efficient means for the transfer of data. Auto-Negotiation is a mechanism by which a device automatically chooses the best performing transmission mode based on its counterparts’ characteristics.
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