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# Searchable Keywords: interface speed duplex network mii-tool miitool
#
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		Media Independant Interface(mii)
	mii-tool allows a view to status and manipulation 
	of the network interface.

with no option it display the current link and speed:

#  mii-tool
eth0: negotiated 100baseTx-FD, link ok


usage:

# mii-tool -h

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
media: 100baseT4, 100baseTx-FD, 100baseTx-HD, 10baseT-FD, 10baseT-HD,
       (to advertise both HD and FD) 100baseTx, 10baseT


set the link speed to 100mb and duplex to full

# mii-tool -F 100baseTx-FD <interface  ei eth0>

<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>
	mii-tool has been obsoleted and replaced with
	ethtool(at least on RedHat)
<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>
			ethtool
		(not useful as mii-tool but who am i)

-S	Shows statistics(if there are any)

 -s --change
              Allows changing some or all settings of the specified  ethernet
              device.   All following options only apply if -s was specified.

       speed 10|100|1000|2500
              Set speed in Mb/s.  ethtool with just the  device  name  as  an
              argument will show you the supported device speeds.

       duplex half|full
              Sets full or half duplex mode.

       port tp|aui|bnc|mii
              Selects device port.

       autoneg on|off
              Specifies  whether autonegotiation should be enabled. Autonego-
              tiation is enabled by deafult, but in some network devices  may
              have  trouble  with  it, so you can disable it if really neces-
              sary.

ethtool  -s  ethX  [speed 10|100|1000|2500]  [duplex half|full]  [port tp|aui|bnc|mii] [autoneg on|off] [advertise N] [phyad N] [xcvr internal|external]
[wol p|u|m|b|a|g|s|d...]   [sopass xx:yy:zz:aa:bb:cc]
[msglvl N]



examples:
	# ethtool eth0 <----------------- Get statistics
	# ethtool eth0 -s speed 1000  <-- set speed
	# ethtool -i eth0 <-------------- Get driver info
	driver: pcnet32
	version: 1.31
	firmware-version:
	bus-info: 0000:00:11.0
	
NOTE: the good news is that this not completely suppported on all NICS.
	Seriously, another argument just to use another Linux distro.