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==================================Debian=======================================
1、发行版本
cat
/etc/debian_version
5.0.2
2、内核
uname
-r
2.6.18-6-amd64
3、机型
dmidecode -s system-product-name
PowerEdge R710
4、安装软件包
apt-get -y
install
net-tools
5、使用ip命令查看网络接口状态
1)ip a
1: lo: <LOOPBACK,UP,LOWER_UP> mtu 16436 qdisc noqueue state UNKNOWN
link
/loopback
00:00:00:00:00:00 brd 00:00:00:00:00:00
inet 127.0.0.1
/8
scope host lo
2: eth0: <BROADCAST,MULTICAST> mtu 1500 qdisc pfifo_fast state DOWN qlen 1000
link
/ether
84:2b:2b:48:ab:12 brd ff:ff:ff:ff:ff:ff
3: eth1: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast state UP qlen 1000
link
/ether
84:2b:2b:48:ab:14 brd ff:ff:ff:ff:ff:ff
inet 192.168.35.133
/24
brd 192.168.35.255 scope global eth1
4: eth2: <BROADCAST,MULTICAST> mtu 1500 qdisc noop state DOWN qlen 1000
link
/ether
84:2b:2b:48:ab:16 brd ff:ff:ff:ff:ff:ff
5: eth3: <BROADCAST,MULTICAST> mtu 1500 qdisc noop state DOWN qlen 1000
link
/ether
84:2b:2b:48:ab:18 brd ff:ff:ff:ff:ff:ff
查看结果是eth1已经有ip 但eth0还没有ip及网络接口也没有打开
2)参数说明
qdisc pfifo_fast
#Priority queueing
qlen
#默认接口传输队列的默认长度
mtu
#最大传输单元
qdisc noop
#表示网络接口还没有up状态
up
#设备处于运行状态，能接收和发送数据包
down
#设备处于关闭状态，不能接收和发送数据包
qdisc mq
#Multiqueue
6、如果没打开eth0网络接口的话使用mii-tool命令后结果是这样的
mii-tool
SIOCGMIIPHY on
'eth0'
failed: Resource temporarily unavailable
eth1: negotiated 1000baseT-FD flow-control, link ok
SIOCGMIIPHY on
'eth2'
failed: Resource temporarily unavailable
SIOCGMIIPHY on
'eth3'
failed: Resource temporarily unavailable
7、使用
ifconfig
命令打开eth0网络接口
ifconfig
eth0 up
8、再次使用mii-tool命令查看网线是否连接，这次看到显示eth0是no link状态 判定网线没接上
eth0: no link
eth1: negotiated 1000baseT-FD flow-control, link ok
eth2: no link
eth3: no link
9、找idc工程师让他们接上网线
==================================Centos=======================================
1、发行版本
cat
/etc/redhat-release
CentOS release 6.5 (Final)
2、内核
uname
-r
2.6.32-431.el6.x86_64
3、机型
dmidecode -s system-product-name
PowerEdge R610
4、安装软件包
yum -y
install
net-tools
5、使用ip命令查看网络接口状态
ip a
1: lo: <LOOPBACK,UP,LOWER_UP> mtu 16436 qdisc noqueue state UNKNOWN
link
/loopback
00:00:00:00:00:00 brd 00:00:00:00:00:00
inet 127.0.0.1
/8
scope host lo
inet6 ::1
/128
scope host
valid_lft forever preferred_lft forever
2: eth0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc mq state UP qlen 1000
link
/ether
00:22:19:63:97:5e brd ff:ff:ff:ff:ff:ff
inet 111.222.333.444
/24
brd 111.222.333.444 scope global eth0
inet6 fe80::222:19ff:fe63:975e
/64
scope link
valid_lft forever preferred_lft forever
3: eth1: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc mq state UP qlen 1000
link
/ether
00:22:19:63:97:60 brd ff:ff:ff:ff:ff:ff
inet 10.18.22.190
/24
brd 10.18.22.255 scope global eth1
inet6 fe80::222:19ff:fe63:9760
/64
scope link
valid_lft forever preferred_lft forever
4: eth2: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc mq state UP qlen 1000
link
/ether
00:22:19:63:97:62 brd ff:ff:ff:ff:ff:ff
inet 111.222.333.444
/25
brd 111.222.333.444 scope global eth2
inet6 fe80::222:19ff:fe63:9762
/64
scope link
valid_lft forever preferred_lft forever
5: em4: <BROADCAST,MULTICAST> mtu 1500 qdisc noop state DOWN qlen 1000
link
/ether
00:22:19:63:97:64 brd ff:ff:ff:ff:ff:ff
6、如果没打开em4网络接口的话使用mii-tool命令后结果是这样的
mii-tool em4
SIOCGMIIPHY on
'em4'
failed: Resource temporarily unavailable
7、使用
ifconfig
命令打开eth0网络接口
ifconfig
em4 up
8、找idc工程师让他们接上网线后查看
mii-tool em4
em4: negotiated 100baseTx-FD flow-control, link ok
参考文章
http:
//events
.linuxfoundation.org
/sites/events/files/slides/Linux_traffic_control
.pdf
本文转自 xdoujiang 51CTO博客，原文链接：http://blog.51cto.com/7938217/1684785，如需转载请自行联系原作者
