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I want to find out the duplex mode / speed of an etherenet interface or a bridge interface. And I want to change them also. I can not use tools like ethtool or mii because my system does not have a such tools and I can not install them.
Are there a solution for that (like using /proc)?
Mohamed KALLEL
Posted 2014-08-01T07:58:24.413
Reputation: 319
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You can use dmesg output e.g. dmesg | grep -i duplex
Ref: http://www.cyberciti.biz/faq/howto-setup-linux-lan-card-find-out-full-duplex-half-speed-or-mode/
Kinnectus
Posted 2014-08-01T07:58:24.413
Reputation: 9 411
duplex info could be lost in the dmesg because dmesg is a log – Mohamed KALLEL – 2014-08-01T08:46:58.403
You're running out of options that aren't going to take a long time to write, when you could save yourself a lot of hassle and just get ethtool or mii-tool... what's the reasoning behind not being able to install either? – Kinnectus – 2014-08-01T08:51:21.270
If you really can't install ethtool, only think left to do is to read sources of ethtool and do some c-programming on your own. I'd recommend that you install ethtool (either a package using package manager of your choice or compile if from sources), because anything else just makes things more laborous. – Sami Laine – 2014-08-01T08:42:42.137