How do I change the NIC speed from 10Mbps to 1Gbps? Below are some relevant info. The machine is a Dell PE1750. The corresponding port on the Cisco 6509 switch is set to auto-negotiate. hostname:~ # /etc/init.d/network status Checking optional network interfaces: eth0 device: Broadcom Corporation NetXtreme BCM5704 Gigabit Ethernet (rev 02) eth0 configuration: eth-id-00:0f:1f:67:d8:5c eth0 IP address: x.x.x.x/24 running eth1 device: Broadcom Corporation NetXtreme BCM5704 Gigabit Ethernet (rev 02) eth1 No configuration found for eth1 unused Checking mandatory network interfaces: lo lo IP address: 127.0.0.1/8 running Checking service network . . . . . . . . . . . . . . . . . running hostname:~ # ethtool eth0 Settings for eth0: Supported ports: [ MII ] Supported link modes: 10baseT/Half 10baseT/Full 100baseT/Half 100baseT/Full 1000baseT/Half 1000baseT/Full Supports auto-negotiation: Yes Advertised link modes: 10baseT/Half 10baseT/Full 100baseT/Half 100baseT/Full 1000baseT/Half 1000baseT/Full Advertised auto-negotiation: Yes Speed: 10Mb/s Duplex: Full Port: Twisted Pair PHYAD: 1 Transceiver: internal Auto-negotiation: on Supports Wake-on: g Wake-on: d Current message level: 0x000000ff (255) Link detected: yes Thanks, Peter Escudero