I have a Intel Mini-Pc that I installed OpenWRT. It has 4x2.5G ports according to seller but only ETH0 is 2.5G as you can see on screenshot. Can change other ethernet ports’s limit to 2.5G? Or how can check ports speed?
are the devices in the other end of the eth1 and eth3 cables 2.5gbit capable ?
are the cables used 2.5gbit capable ?
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Either the network cards/ ports are 2,5 GBit/s capable - or not. Your system specs should tell you. Both ends will negotiate the maximum speeds supported by both sides (and the cable inbetween).
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The speed shown on the status page is the actual connection speed, not the port capability. The connection speed is usually determined automatically. When the cable is first connected, there is a negotiation process to find the highest speed that both ends support.
You can install the ethtool package then run ethtool ethN to find the supported speeds of your local ports.
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