ethtool

랜카드 속도 및 전송모드를 설정한다.

[root@push06 ~]# ethtool eth0

Settings for eth0:

        Supported ports: [ TP ]

        Supported link modes:   10baseT/Half 10baseT/Full

                                100baseT/Half 100baseT/Full

                               1000baseT/Full

        Supports auto-negotiation: Yes       // 자동협상인식기능

        Advertised link modes: 10baseT/Half 10baseT/Full          

                                100baseT/Half 100baseT/Full

                                1000baseT/Full

       Advertised auto-negotiation: Yes

        Speed: 1000Mb/s                   //속도

        Duplex: Full                         //전이중모드

        Port: Twisted Pair

        PHYAD: 2

        Transceiver: internal

        Auto-negotiation: on               //자동협상인식기능에 의해 이더넷설정을 할것인지

        Supports Wake-on: pumbg

        Wake-on: g

        Current message level: 0x00000007 (7)

        Link detected: yes

사용형식: ethtool -s eth0 [spped 10|100|1000] [duplex half|full] [autoneg on|off]