centos7.2的双网卡怎么绑定

Posted 2023-03-15

参考技术A centos7.2的双网卡用team实现网卡聚合链路脚本:

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#!/bin/bash
#创建一个名为team0的链路接口
IP=192.168.101.1
GATE=192.168.101.254
ETH1=eno1
ETH2=eno2
#ETH3=eno3
#ETH4=eno4
nmcli con add type team con-name team0 ifname team0 config '"runner": "name":"activebackup"'
#nmcli con add type team con-name team1 ifname team1 config '"runner": "name":"activebackup"'
cat <<EOF> /etc/sysconfig/network-scripts/ifcfg-$ETH1
TYPE=Ethernet
BOOTPROTO=dhcp
DEFROUTE=yes
IPV4_FAILURE_FATAL=yes
IPV6INIT=no
IPV6_AUTOCONF=yes
IPV6_DEFROUTE=yes
IPV6_FAILURE_FATAL=no
NAME=$ETH1
DEVICE=$ETH1
ONBOOT=yes
IPV6_PEERDNS=yes
IPV6_PEERROUTES=yes
PEERDNS=yes
PEERROUTES=yes
EOF
cat <<EOF> /etc/sysconfig/network-scripts/ifcfg-$ETH2
TYPE=Ethernet
BOOTPROTO=dhcp
DEFROUTE=yes
IPV4_FAILURE_FATAL=yes
IPV6INIT=no
IPV6_AUTOCONF=yes
IPV6_DEFROUTE=yes
IPV6_FAILURE_FATAL=no
NAME=$ETH2
DEVICE=$ETH2
ONBOOT=yes
IPV6_PEERDNS=yes
IPV6_PEERROUTES=yes
PEERDNS=yes
PEERROUTES=yes
EOF
cat <<EOF> /etc/sysconfig/network-scripts/ifcfg-team0
DEVICE=team0
TEAM_CONFIG="\"runner\": \"name\":\"activebackup\""
DEVICETYPE=Team
BOOTPROTO=static
DEFROUTE=yes
IPV4_FAILURE_FATAL=yes
IPV6INIT=no
IPV6_AUTOCONF=yes
IPV6_DEFROUTE=yes
IPV6_FAILURE_FATAL=no
NAME=team0
ONBOOT=yes
IPV6_PEERDNS=yes
IPV6_PEERROUTES=yes
IPADDR=$IP
PREFIX=24
GATEWAY=$GATE
EOF
nmcli connection add type team-slave con-name team0-port1 ifname $ETH1 master team0
nmcli connection add type team-slave con-name team0-port2 ifname $ETH2 master team0
nmcli connection up team0-port2
nmcli connection up team0-port1
reboot

验证：
1.查看team0状态：

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[root@localhost ~]# teamdctl team0 state view
setup:
runner: activebackup
ports:
eno1
link watches:
link summary: up
instance[link_watch_0]:
name: ethtool
link: up
down count: 0
eno2
link watches:
link summary: up
instance[link_watch_0]:
name: ethtool
link: up
down count: 0
runner:
active port: eno1 #当前主接口

2.列出team0端口

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[root@localhost ~]# teamnl team0 ports
3: eno2: up 1000Mbit FD
2: eno1: up 1000Mbit FD

3.测试，宕掉当前主接口，看是否切换

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[root@localhost ~]# nmcli device disconnect eno1
Device 'eno1' successfully disconnected.
[root@localhost ~]# teamnl team0 ports
3: eno2: up 1000Mbit FD
[root@localhost ~]# teamdctl team0 state view
setup:
runner: activebackup
ports:
eno2
link watches:
link summary: up
instance[link_watch_0]:
name: ethtool
link: up
down count: 0
runner:
active port: eno2 #切换成功