新网站建设咨询,如何组建做网站的团队,建设网站的工作流程,沭阳奥体小区做网站ethtool 工具关于网络协商功能介绍#xff1b; ethtool - Display or change ethernet card settings#xff08;ethtool 是用来显示和更改网卡设置的工具#xff09;#xff1b;这个工具比较复杂#xff0c;功能也特别多。由于洋文比较难懂。所以我们还是把网络设备协商…ethtool 工具关于网络协商功能介绍 ethtool - Display or change ethernet card settingsethtool 是用来显示和更改网卡设置的工具这个工具比较复杂功能也特别多。由于洋文比较难懂。所以我们还是把网络设备协商方式的设置方法说一说。 2.1 ethtool 显示网络端口设置功能
这个功能比较好办。就是ethtool 后面直接接网絽接口就行比如下面的例子
[rootlocalhost ~]# 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: No 注自动协商关闭 Speed: 100Mb/s 注速度 100Mb Duplex: Full 注全双工 Port: MII PHYAD: 32 Transceiver: internal Auto-negotiation: off Supports Wake-on: pumbg Wake-on: d Current message level: 0x00000007 (7) Link detected: yes 注eth0已经激活 2.2 ethtool 设置网卡的协商模式
在ethtool的-h帮助中我们查看到有这样的帮助信息
ethtool -s DEVNAME / [ speed 10|100|1000 ] / [ duplex half|full ] / [ port tp|aui|bnc|mii|fibre ] / [ autoneg on|off ] / 实例一 把网卡eth0 速度改为10Mb/s采用半双工
[rootcuc03 beinan]# ethtool -s eth1 speed 10 duplex half [rootcuc03 beinan]# ethtool eth1 Settings for eth1: 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: No Speed: 10Mb/s 注速度 10M/s Duplex: Half 注半双工 Port: MII PHYAD: 32 Transceiver: internal Auto-negotiation: off Supports Wake-on: pumbg Wake-on: d Current message level: 0x00000007 (7) Link detected: no 注eth1没有激活 实例二 把网卡eth0 速度改为100Mb/s采用全双工
[rootcuc03 beinan]# ethtool -s eth1 speed 100 duplex full [rootcuc03 beinan]# ethtool eth1 Settings for eth1: 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: No Speed: 100Mb/s 注速度 100M/s Duplex: Full 注全双工 Port: MII PHYAD: 32 Transceiver: internal Auto-negotiation: off Supports Wake-on: pumbg Wake-on: d Current message level: 0x00000007 (7) Link detected: no 注eth1网卡没有激活 命令描述
ethtool 是用于查询及设置网卡参数的命令。
使用概要 ethtool ethx //查询ethx网口基本设置其中 x 是对应网卡的编号如eth0、eth1等等 ethtool –h //显示ethtool的命令帮助(help) ethtool –i ethX //查询ethX网口的相关信息 ethtool –d ethX //查询ethX网口注册性信息 ethtool –r ethX //重置ethX网口到自适应模式 ethtool –S ethX //查询ethX网口收发包统计 ethtool –s ethX [speed 10|100|1000] [duplex half|full] [autoneg on|off] //设置网口速率10/100/1000M、设置网口半/全双工、设置网口是否自协商
使用举例 1[rootlinux /]# 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: 1000Mb/s Duplex: Full Port: Twisted Pair PHYAD: 0 Transceiver: internal Auto-negotiation: on Supports Wake-on: umbg Wake-on: d Link detected: yes 2[rootlinux /]# ethtool -i eth1 driver: e1000 version: 5.0.43-k1 firmware-version: N/A bus-info: 06:08.1 3[rootlinux /]# ethtool -S eth1 NIC statistics: rx_packets: 58068300 tx_packets: 87124083 rx_bytes: 1589713008 tx_bytes: 2165825901 rx_errors: 0 tx_errors: 0 rx_dropped: 0 tx_dropped: 0 multicast: 0 collisions: 0 rx_length_errors: 0 rx_over_errors: 0 rx_crc_errors: 0 rx_frame_errors: 0 rx_fifo_errors: 0 rx_missed_errors: 0 tx_aborted_errors: 0 tx_carrier_errors: 0 tx_fifo_errors: 0 tx_heartbeat_errors: 0 tx_window_errors: 0 4[rootlinux /]# ethtool -s eth1 autoneg off speed 100 duplex full
相关参考 1[rootlinux /]# which ethtool //查询 ethtool 存放的路径 /sbin/ethtool 2[rootlinux /]# rpm -qf /sbin/ethtool //查询 ethtool 的版本信息 ethtool-1.6-5 3将 ethtool 设置永久保存在网络设备的方法 解决方法一: ethtool 设置可通过 /etc/sysconfig/network-scripts/ifcfg-ethX 文件保存从而在设备下次启动时激活选项。 例如ethtool -s eth0 speed 100 duplex full autoneg off 此指令将eth0设备设置为全双工自适应速度为100Mbs。若要eth0启动时设置这些参数, 修改文件/etc/sysconfig/network-scripts/ifcfg-eth0 添加如下一行: ETHTOOL_OPTSspeed 100 duplex full autoneg off 解决方法二: 将ethtool设置写入/etc/rc.d/rc.local之中。
