mii-tool’s new friend
I’ve always used mii-tool to see/change the settings on Ethernet
cards:
[root@gateway ~]# mii-tool eth0
eth0: negotiated 100baseTx-FD flow-control, link ok
I just installed a RealTek 8169 (r8169 is the name of the module that
supports it) and mii-tool doesn’t work on it:
[root@gateway ~]# mii-tool eth1
SIOCGMIIPHY on 'eth1' failed: Operation not supported
I’ve had this happen before, but in this case I really needed to read
these settings. A little browsing around on Google finds me
ethtool:
[root@gateway ~]# ethtool eth1
Settings for eth1:
Supported ports: [ TP ]
Supported link modes: 10baseT/Half 10baseT/Full
100baseT/Half 100baseT/Full
1000baseT/Full
Supports auto-negotiation: Yes
Advertised link modes: 10baseT/Half 10baseT/Full
100baseT/Half 100baseT/Full
1000baseT/Full
Advertised auto-negotiation: Yes
Speed: 100Mb/s
Duplex: Full
Port: Twisted Pair
PHYAD: 0
Transceiver: internal
Auto-negotiation: on
Link detected: yes
So next time mii-tool doesn’t work, try ethtool. I’ve also heard
that ethtool sometimes won’t work where mii-tool will.
cool :p thx, was looking for this
Comment by r — Monday, 15 May 2006 @ 17:02:20