CentOS下雙網卡綁定-bond0

網卡綁定就是多張網卡邏輯上作為一張網卡用。可分為，負載均衡綁定和備援綁定兩種。

[root@test~]# more /etc/sysconfig/network-scripts/ifcfg-bond0

DEVICE=bond0

IPADDR=172.16.4.100

NETMASK=255.255.255.0

BROADCAST=172.16.4.255

NETWORK=172.168.4.100

ONBOOT=yes

[root@test~]# more /etc/sysconfig/network-scripts/ifcfg-eth0

BOOTPROTO=none

TYPE=Ethernet

DEVICE=eth0

MASTER=bond0

slave=yes

[root@test ~]# more /etc/sysconfig/network-scripts/ifcfg-eth1

DEVICE=eth1

[root@test~]# more /etc/modprobe.conf

alias eth0 b44

alias eth1 8139too

alias usb-controller ehci-hcd

alias usb-controller1 ohci-hcd

alias bond0 bonding

options bond0 miimon=100 mode=0

[root@test~]# more /etc/rc.d/rc.local

#!/bin/sh

#

# This script will be executed *after* all the other init scripts.

# You can put your own initialization stuff in here if you don't

# want to do the full Sys V style init stuff.

touch /var/lock/subsys/local

ifenslave bond0 eth0 eth1

[root@test~]# more /proc/net/bonding/bond0

Ethernet Channel Bonding Driver: v2.6.1 (October 29, 2004)

Bonding Mode: load balancing (round-robin)

MII Status: up

MII Polling Interval (ms): 100

Up Delay (ms): 0

Down Delay (ms): 0

Slave Interface: eth0

Link Failure Count: 1

Permanent HW addr: 00:1b:b9:58:8b:b2

Slave Interface: eth1

MII Status: down

Link Failure Count: 0

Permanent HW addr: 00:07:40:6c:ac:c8

[root@test ~]# ifconfig -a

bond0     Link encap:Ethernet  HWaddr00:1B:B9:58:8B:B2 

inet addr:172.16.4.100 Bcast:172.16.4.255  Mask:255.255.255.0

         inet6 addr:fe80::200:ff:fe00:0/64 Scope:Link

         UP BROADCAST RUNNINGMASTER MULTICAST  MTU:1500  Metric:1

         RX packets:744154errors:0 dropped:0 overruns:0 frame:0

         TX packets:1866915errors:0 dropped:0 overruns:0 carrier:0

         collisions:0txqueuelen:0

         RX bytes:1099876146 (1.0GiB)  TX bytes:121233595 (115.6 MiB)

eth0      Link encap:Ethernet  HWaddr00:1B:B9:58:8B:B2 

         inet6 addr:fe80::21b:b9ff:fe58:8bb2/64 Scope:Link

         UP BROADCAST RUNNINGSLAVE MULTICAST  MTU:1500  Metric:1

         TX packets:1866905errors:0 dropped:0 overruns:0 carrier:0

         collisions:0txqueuelen:1000

         RX bytes:1099876146 (1.0GiB)  TX bytes:121232839 (115.6 MiB)

         Interrupt:9

eth1      Link encap:Ethernet  HWaddr00:1B:B9:58:8B:B2 

         UP BROADCAST SLAVEMULTICAST  MTU:1500  Metric:1

         RX packets:0 errors:0dropped:0 overruns:0 frame:0

         TX packets:10 errors:0dropped:0 overruns:0 carrier:0

         RX bytes:0 (0.0 b) TX bytes:756 (756.0 b)

         Interrupt:11 Baseaddress:0x1000

lo        Link encap:Local Loopback 

         inetaddr:127.0.0.1  Mask:255.0.0.0

         inet6 addr: ::1/128Scope:Host

         UP LOOPBACKRUNNING  MTU:16436  Metric:1

         RX packets:2129 errors:0dropped:0 overruns:0 frame:0

         TX packets:2129 errors:0dropped:0 overruns:0 carrier:0

         RX bytes:1998893 (1.9MiB)  TX bytes:1998893 (1.9 MiB)

sit0      Link encap:IPv6-in-IPv4 

         NOARP MTU:1480  Metric:1

         TX packets:0 errors:0dropped:0 overruns:0 carrier:0

         RX bytes:0 (0.0 b) TX bytes:0 (0.0 b)

附：

DEVICE=實體裝置名

IPADDR=IP位址

NETMASK=掩碼值

NETWORK=網絡位址

BROADCAST=廣播位址

GATEWAY=網關位址

ONBOOT=[yes|no]（引導時是否激活裝置）

USERCTL=[yes|no]（非root使用者是否可以控制該裝置）

BOOTPROTO=[none|static|bootp|dhcp]（引導時不使用協定|靜态配置設定|BOOTP協定|DHCP協定）

HWADDR = 你的MAC位址

本文轉自 yntmdr 51CTO部落格，原文連結：http://blog.51cto.com/yntmdr/1826488，如需轉載請自行聯系原作者