rh436 - 网卡重命名/网卡绑定(rhel5.5)

rhel ver:

[root@localhost ~]# lsb_release -a
LSB Version:    :core-3.1-amd64:core-3.1-ia32:core-3.1-noarch:graphics-3.1-amd64:graphics-3.1-ia32:graphics-3.1-noarch
Distributor ID:    RedHatEnterpriseServer
Description:    Red Hat Enterprise Linux Server release 5.5 (Tikanga)
Release:    5.5
Codename:    Tikanga

网卡重命名(eth0 -> eth1):

ifdown eth0


vim /etc/modprobe.conf

alias eth0 e1000 => alias eth1 e1000


mv /etc/sysconfig/network-scripts/ifcfg-eth0 /etc/sysconfig/network-scripts/ifcfg-eth1

vim /etc/sysconfig/network-scripts/ifcfg-eth1

DEVICE=eth0 => DEVICE=eth1


service network restart


网卡绑定:

假设有两块网卡eth0和eth1


做绑定实验前,先分别down掉其中一块测试单块网卡的连通情况

ifdown eht0,ping gateway

ifdown eth1,ping gateway


vim /etc/modprobe.conf

alias bond0 bonding

options bond0 mode=1 miimon=100 user_carrier=0


cp /etc/sysconfig/network-scripts/ifcfg-eth0 /etc/sysconfig/network-scripts/ifcfg-bond0

vim /etc/sysconfig/network-scripts/ifcfg-bond0

DEVICE=bond0
BOOTPROTO=static
ONBOOT=yes
IPADDR=192.168.221.244
NETMASK=255.255.255.0
GATEWAY=192.168.221.254

vim /etc/sysconfig/network-scripts/ifcfg-eth0

DEVICE=eth0
MASTER=bond0
SLAVE=yes
BOOTPROTO=static
ONBOOT=yes


vim /etc/sysconfig/network-scripts/ifcfg-eth1

DEVICE=eth1
MASTER=bond0
SLAVE=yes
BOOTPROTO=static
ONBOOT=yes


service network restart


[root@localhost ~]# ifconfig
bond0     Link encap:Ethernet  HWaddr 00:0C:29:F7:5A:00  
          inet addr:192.168.221.244  Bcast:192.168.221.255  Mask:255.255.255.0
          inet6 addr: fe80::20c:29ff:fef7:5a00/64 Scope:Link
          UP BROADCAST RUNNING MASTER MULTICAST  MTU:1500  Metric:1
          RX packets:3369 errors:0 dropped:0 overruns:0 frame:0
          TX packets:1755 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:0
          RX bytes:2342730 (2.2 MiB)  TX bytes:234018 (228.5 KiB)

eth0      Link encap:Ethernet  HWaddr 00:0C:29:F7:5A:00  
          UP BROADCAST RUNNING SLAVE MULTICAST  MTU:1500  Metric:1
          RX packets:3314 errors:0 dropped:0 overruns:0 frame:0
          TX packets:1572 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1000
          RX bytes:2330760 (2.2 MiB)  TX bytes:199428 (194.7 KiB)

eth1      Link encap:Ethernet  HWaddr 00:0C:29:F7:5A:00  
          UP BROADCAST RUNNING SLAVE MULTICAST  MTU:1500  Metric:1
          RX packets:64 errors:0 dropped:0 overruns:0 frame:0
          TX packets:195 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1000
          RX bytes:12564 (12.2 KiB)  TX bytes:36566 (35.7 KiB)

测试failover(vmware上failover测试不成功):

断掉eth0,ping gateway

断掉eth1,ping gateway


简单排错命令:

查看eth0网卡对应的内核:modprobe -c | grep eth0

检查绑定内核有没有没加载,同样适于网卡内核:lsmod | grep bonding

取消绑定网卡,需要先卸载绑定内核:modprobe -r bonding

在网卡还没起来时查看网卡mac地址:ip addr list


REF: /usr/share/doc/kernel-doc-2.6.18/Documentation/networking/bonding.txt

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