Task: Install mii-tool and ethtool tools
de># ethtool eth0
Settings for eth0:
Supported ports: [ TP MII ]
Supported link modes: 10baseT/Half 10baseT/Full
100baseT/Half 100baseT/Full
Supports auto-negotiation: Yes
Advertised link modes: 10baseT/Half 10baseT/Full
100baseT/Half 100baseT/Full
Advertised auto-negotiation: Yes
Speed: 100Mb/s
Duplex: Half
Port: MII
PHYAD: 0
Transceiver: internal
Auto-negotiation: on
Supports Wake-on: pumbg
Wake-on: g
Current message level: 0x00000033 (51)
Link detected: yes
#mii-tool eth0
eth0: 100 Mbit, full duplex, link ok
de>
Change the speed and duplex settings
de># mii-tool -F 100baseTx-FD
# mii-tool -F 10baseT-HDde>
de># ethtool -s eth0 speed 100 duplex full
# ethtool -s eth0 speed 10 duplex half
mii-tool
de>de>usage: mii-tool [-VvRrwl] [-A media,... | -F media] [interface ...]
-V, --version display version information
-v, --verbose more verbose output
-R, --reset reset MII to poweron state
-r, --restart restart autonegotiation
-w, --watch monitor for link status changes
-l, --log with -w, write events to syslog
-A, --advertise=media,... advertise only specified media
-F, --force=media force specified media technology
de>
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