$sudo cat /sys/class/net/eth0/speed 100 $sudo cat /sys/class/net/eth0/ca carrier carrier_changes $sudo cat /sys/class/net/eth0/carrier 1 $sudo cat /sys/class/net/eth0/carrier_changes 2 $sudo cat /sys/class/net/eth0/operstate up $sudo ethtool eth0 Settings for eth0: Supported ports: [ TP MII ] Supported link modes: 10baseT/Half 10baseT/Full 100baseT/Half 100baseT/Full 1000baseT/Half 1000baseT/Full Supported pause frame use: No Supports auto-negotiation: Yes Advertised link modes: 10baseT/Half 10baseT/Full …
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