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主備模式的鏈路聚合將其中一個(gè)接口置于備份狀態(tài)，并且僅當(dāng)活動(dòng)接口斷開鏈接時(shí)才會(huì)使其處于活動(dòng)狀態(tài)。
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現(xiàn)在讓我們?cè)贑entOS 7中配置網(wǎng)卡綁定，運(yùn)行ip link命令查看可以使用的網(wǎng)卡
[root@localhost ~]# ip link
1: lo:
mtu 65536 qdisc noqueue state UNKNOWN mode DEFAULT group default qlen 1000 link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00 2: enp0s3:
mtu 1500 qdisc pfifo_fast state UP mode DEFAULT group default qlen 1000 link/ether 08:00:27:7b:d3:32 brd ff:ff:ff:ff:ff:ff 3: enp0s8:
mtu 1500 qdisc pfifo_fast state UP mode DEFAULT group default qlen 1000 link/ether 08:00:27:81:d3:be brd ff:ff:ff:ff:ff:ff
在這里使用enp0s3和enp0s8兩個(gè)網(wǎng)卡配置 主備模式的鏈路聚合。
創(chuàng)建Team接口
[root@localhost ~]# nmcli connection add type team con-name team0 ifname team0 config '{"runner":{"name":"activebackup"}}'
Connection 'team0' (4df78635-b9fc-4539-ab02-27db11c656fe) successfully added.
運(yùn)行nmcli con show查看team0的配置
[root@localhost ~]# nmcli con show
NAME UUID TYPE DEVICE
team0 4df78635-b9fc-4539-ab02-27db11c656fe team team0
enp0s3 5005942f-a7fd-4e55-b8e7-77928d8da72d ethernet enp0s3
Wired connection 1 45dee64a-53b3-3e2a-b2d4-e377f3e668a2 ethernet enp0s8
添加Slave接口
在這里使用enp0s3和enp0s8兩個(gè)網(wǎng)卡作為team0的slave接口：
[root@localhost ~]# nmcli connection add type team-slave con-name team0-port1 ifname enp0s3 master team0
Connection 'team0-port1' (15183c4a-2053-4b53-ad58-de5a07ae3ae9) successfully added.
[root@localhost ~]# nmcli connection add type team-slave con-name team0-port2 ifname enp0s8 master team0
Connection 'team0-port2' (a34e20b0-3422-46e5-a947-bb2eaa6c0622) successfully added.
查看端口配置信息：
[root@localhost ~]# nmcli connection show
NAME UUID TYPE DEVICE
team0 4df78635-b9fc-4539-ab02-27db11c656fe team team0
enp0s3 5005942f-a7fd-4e55-b8e7-77928d8da72d ethernet enp0s3
Wired connection 1 45dee64a-53b3-3e2a-b2d4-e377f3e668a2 ethernet enp0s8
team0-port1 15183c4a-2053-4b53-ad58-de5a07ae3ae9 ethernet --
team0-port2 a34e20b0-3422-46e5-a947-bb2eaa6c0622 ethernet --
分配IP地址
給team0分配一個(gè)靜態(tài)的IP地址并啟動(dòng)team0配置：
[root@localhost ~]# nmcli connection modify team0 ipv4.method manual ipv4.addresses 192.168.0.200/24 ipv4.gateway 192.168.0.1 ipv4.dns 202.102.128.68
[root@localhost ~]# nmcli connection up team0
Connection successfully activated (master waiting for slaves) (D-Bus active path: /org/freedesktop/NetworkManager/ActiveConnection/4)
查看連接配置信息，發(fā)現(xiàn)team0-port1沒有綁定在enp0s3這個(gè)網(wǎng)卡接口上
[root@localhost ~]# nmcli connection
這是以內(nèi)ifcfg-team0-port1配置文件和ifcfg-enp0s3兩個(gè)配置文件都設(shè)置為開機(jī)啟動(dòng)了
所以我們需要關(guān)閉enp0s3的開機(jī)啟動(dòng)，在這里我們把enp0s3和Wired connection 1這兩個(gè)配置都關(guān)掉開機(jī)啟動(dòng)
[root@localhost ~]# nmcli connection modify enp0s3 autoconnect no
[root@localhost ~]# nmcli connection modify Wired\ connection\ 1 autoconnect no
然后重啟一下網(wǎng)絡(luò)服務(wù)，查看鏈接配置：
[root@localhost ~]# systemctl restart network
[root@localhost ~]# nmcli connection
[root@localhost ~]# ip ad
可以看到team0-port1和team0-port2都綁定在對(duì)應(yīng)的網(wǎng)卡上面了，team0的ip地址顯示的是手動(dòng)設(shè)置的192.168.0.200
驗(yàn)證
查看team0的狀態(tài)：
[root@localhost ~]# teamdctl team0 state
setup:
runner: activebackup
ports:
enp0s3
link watches:
link summary: up
instance[link_watch_0]:
name: ethtool
link: up
down count: 0
enp0s8
link watches:
link summary: up
instance[link_watch_0]:
name: ethtool
link: up
down count: 0
runner:
active port: enp0s8
現(xiàn)在活動(dòng)的端口是enp0s8，我們斷開這個(gè)端口，看一下主備模式配置是否工作：
[root@localhost ~]# nmcli device disconnect enp0s8
Device 'enp0s8' successfully disconnected.
[root@localhost ~]# teamdctl team0 state
setup:
runner: activebackup
ports:
enp0s3
link watches:
link summary: up
instance[link_watch_0]:
name: ethtool
link: up
down count: 0
runner:
active port: enp0s3
看到活動(dòng)接口切換到enp0s3上面了。
總結(jié)
主備模式的鏈路聚合將其中一個(gè)接口置于備份狀態(tài)，并且僅當(dāng)活動(dòng)接口斷開鏈接時(shí)才會(huì)使其處于活動(dòng)狀態(tài)。
網(wǎng)頁(yè)題目：通過nmcli配置主備模式鏈路聚合
轉(zhuǎn)載注明：http://www.fisionsoft.com.cn/article/dhsggie.html
