NIC Teaming on CentOS 7 with nmcli

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NIC Teaming on CentOS 7 with nmcli

1、Teaming Daemon安装

为了使用teaming功能，首先必须安装teamd包，系统通常不会安装。使用如下命令进行安装。

#yum install teamd -y

2、nmcli配置teaming

首先查看系统当前connection及device配置

[root@MiWiFi-R3-srv Desktop]# nmcli connection show

NAME UUID TYPE DEVICE

[root@MiWiFi-R3-srv Desktop]# nmcli device status

DEVICE TYPE STATE CONNECTION

eno16777736 ethernet disconnected --

eno33554992 ethernet disconnected --

lo loopback unmanaged --

[root@MiWiFi-R3-srv Desktop]#

创建teaming接口

#nmcli con add type team con-name myteam0 ifname team0 config '{ "runner": {"name": "loadbalance"}}'

配置team静态ip

#nmcli con mod myteam0 ipv4.addresses 192.168.31.108/24

#nmcli con mod myteam0 ipv4.gateway 192.168.31.1

#nmcli con mod myteam0 ipv4.method manual

添加eno16777736、eno33554992至myteam0中。

#nmcli con add type team-slave con-name myteam0-port1 ifname eno16777736 master myteam0

#nmcli con add type team-slave con-name myteam0-port2 ifname eno33554992 master myteam0

激活taaming接口

#nmcli con up myteam0

检查配置

[root@MiWiFi-R3-srv Desktop]# nmcli connection show

NAME UUID TYPE DEVICE

myteam0-port2 1a0f2bfd-cea1-4c7b-b2de-d34199b8561e 802-3-ethernet eno33554992

myteam0-port1 8e0c325c-d069-4014-bb75-1fa1f4674618 802-3-ethernet eno16777736

myteam0 e2976c8e-da7d-4901-88c6-db8a9913947c team team0

[root@MiWiFi-R3-srv Desktop]# nmcli device status

DEVICE TYPE STATE CONNECTION

eno16777736 ethernet connected myteam0-port1

eno33554992 ethernet connected myteam0-port2

team0 team connected myteam0

lo loopback unmanaged --

[root@MiWiFi-R3-srv Desktop]# ip a s

1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 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

valid_lft forever preferred_lft forever

inet6 ::1/128 scope host

2: eno16777736: <BROADCAST,MULTICAST,LOWER_UP> mtu 1500 qdisc pfifo_fast master team0 state UP qlen 1000

link/ether 00:0c:29:51:e8:75 brd ff:ff:ff:ff:ff:ff

3: eno33554992: <BROADCAST,SimSun;">4: team0: <BROADCAST,LOWER_UP> mtu 1500 qdisc noqueue state UP

inet 192.168.31.108/24 brd 192.168.31.255 scope global team0

inet6 fe80::20c:29ff:fe51:e875/64 scope link tentative dadFailed

[root@MiWiFi-R3-srv ~]# teamdctl team0 state

setup:

runner: loadbalance

ports:

eno16777736

link watches:

link summary: up

instance[link_watch_0]:

name: ethtool

link: up

down count: 0

eno33554992

通过teamnl查看slave网卡状态

[root@MiWiFi-R3-srv ~]# teamnl team0 ports

3: eno33554992: up 1000Mbit FD

2: eno16777736: up 1000Mbit FD

[root@MiWiFi-R3-srv ~]#

3、nmcli修改teaming runner配置

[root@MiWiFi-R3-srv Desktop]#nmcli connection modify myteam0 team.config '{ "runner": {"name": "roundrobin"}}'

需要重启下team0方可生效[root@MiWiFi-R3-srv Desktop]# nmcli connection down myteam0

Connection 'myteam0' successfully deactivated (D-Bus active path: /org/freedesktop/NetworkManager/ActiveConnection/9)

NAME UUID TYPE DEVICE

myteam0-port1 2b975876-780f-4181-971e-a79cf6a07a40 802-3-ethernet --

myteam0-port2 24e3ef82-fb93-4d11-9a6e-4c27227f7f66 802-3-ethernet --

myteam0 1f4ed5e2-46a1-4dbf-a870-5b088957a434 team --

DEVICE TYPE STATE CONNECTION

eno16777736 ethernet disconnected --

eno33554992 ethernet disconnected --

lo loopback unmanaged --

[root@MiWiFi-R3-srv Desktop]# nmcli connection up myteam0-port1

Connection successfully activated (D-Bus active path: /org/freedesktop/NetworkManager/ActiveConnection/12)

[root@MiWiFi-R3-srv Desktop]# nmcli connection up myteam0-port2

Connection successfully activated (D-Bus active path: /org/freedesktop/NetworkManager/ActiveConnection/14)

[root@MiWiFi-R3-srv Desktop]# nmcli connection up myteam0

Connection successfully activated (master waiting for slaves) (D-Bus active path: /org/freedesktop/NetworkManager/ActiveConnection/15)

bond0 bond unmanaged --

myteam0-port1 2b975876-780f-4181-971e-a79cf6a07a40 802-3-ethernet eno16777736

myteam0-port2 24e3ef82-fb93-4d11-9a6e-4c27227f7f66 802-3-ethernet eno33554992

myteam0 1f4ed5e2-46a1-4dbf-a870-5b088957a434 team team0

[root@MiWiFi-R3-srv Desktop]# teamdctl team0 state

runner: roundrobin

4、nmcli添加网卡到team

查看当前设备及网络连接

[root@MiWiFi-R3-srv ~]# ip link show

link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00

link/ether 00:0c:29:51:e8:75 brd ff:ff:ff:ff:ff:ff

4: eno50332216: <BROADCAST,LOWER_UP> mtu 1500 qdisc pfifo_fast state UP mode DEFAULT qlen 1000

link/ether 00:0c:29:51:e8:89 brd ff:ff:ff:ff:ff:ff

5: bond0: <BROADCAST,MASTER> mtu 1500 qdisc noop state DOWN mode DEFAULT

link/ether 8a:3d:66:0a:92:91 brd ff:ff:ff:ff:ff:ff

9: team0: <BROADCAST,LOWER_UP> mtu 1500 qdisc noqueue state UP mode DEFAULT

DEVICE TYPE STATE CONNECTION

eno16777736 ethernet connected myteam0-port1

eno33554992 ethernet connected myteam0-port2

team0 team connected myteam0

eno50332216 ethernet disconnected --

bond0 bond unmanaged --

lo loopback unmanaged --

[root@MiWiFi-R3-srv Desktop]# nmcli networking off

断开网络之后，设备变为非管理状态

DEVICE TYPE STATE CONNECTION

team0 team connected myteam0

bond0 bond unmanaged --

eno16777736 ethernet unmanaged --

eno33554992 ethernet unmanaged --

eno50332216 ethernet unmanaged --

lo loopback unmanaged --

[root@MiWiFi-R3-srv Desktop]# teamdctl team0 port add eno50332216

[root@MiWiFi-R3-srv Desktop]# nmcli networking on

DEVICE TYPE STATE CONNECTION

eno16777736 ethernet connected myteam0-port1

eno33554992 ethernet connected myteam0-port2

eno50332216 ethernet connected eno50332216

team0 team connected myteam0

bond0 bond unmanaged --

lo loopback unmanaged --

[root@MiWiFi-R3-srv Desktop]#

修改新加网卡的连接名

[root@MiWiFi-R3-srv Desktop]# nmcli connection modify eno50332216 con-name myteam0-port3

NAME UUID TYPE DEVICE

myteam0 385eda15-a3fb-4e7e-a6d4-8fc816843b73 team team0

myteam0-port1 32cd5220-4746-4fc4-afc1-03158d9d0378 802-3-ethernet eno16777736

myteam0-port2 f58e3a15-b239-496e-a971-535857395d59 802-3-ethernet eno33554992

myteam0-port3 cf2576ff-9709-44c8-a0a5-df606a3c5697 802-3-ethernet eno50332216

[root@MiWiFi-R3-srv Desktop]#teamnl team0 ports

4: eno50332216: up 1000Mbit FD

3: eno33554992: up 1000Mbit FD

2: eno16777736: up 1000Mbit FD

备注

添加网卡至team0中，网卡必须处于非活动状态才可以添加成功。否则报错如下：

libteamdctl: cli_usock_process_msg: usock: Error message received: "PortAddFail"

libteamdctl: cli_usock_process_msg: usock: Error message content: "Failed to add port."

command call Failed (Invalid argument)

messages中日志如下

Dec 26 18:12:47 MiWiFi-R3-srv NetworkManager[938]: <info> [1482747167.9905] device (eno33554992): state change: config -> ip-config (reason 'none') [50 70 0]

Dec 26 18:12:48 MiWiFi-R3-srv systemd: Unit iscsi.service cannot be reloaded because it is inactive.

5、nmcli从team中删除网卡

查看当前设备及连接

[root@MiWiFi-R3-srv ~]# nmcli connection show

[root@MiWiFi-R3-srv ~]# teamdctl team0 port remove eno50332216

[root@MiWiFi-R3-srv ~]# nmcli device status

eno50332216 ethernet connected myteam0-port3

lo loopback unmanaged --

删除之后查连接与设备仍然存在，重启网卡服务后再次查看eno50332216网卡已从team0中删除，仅留连接名myteam0-port3，该连接名若不在使用可以删除

[root@MiWiFi-R3-srv ~]# systemctl restart network

myteam0-port3 cf2576ff-9709-44c8-a0a5-df606a3c5697 802-3-ethernet --

[root@MiWiFi-R3-srv ~]# teamnl team0 ports

[root@MiWiFi-R3-srv ~]#

6、ip工具配置team

[root@MiWiFi-R3-srv ~]# ip link

[root@MiWiFi-R3-srv ~]# ip link set dev eno50332216 down

down掉后，设备变为不可用。

DEVICE TYPE STATE CONNECTION

eno16777736 ethernet connected myteam0-port1

eno33554992 ethernet connected myteam0-port2

team0 team connected myteam0

eno50332216 ethernet unavailable --

bond0 bond unmanaged --

lo loopback unmanaged --

[root@MiWiFi-R3-srv ~]# ip link set dev eno50332216 master myteam0

Error: argument "myteam0" is wrong: Device does not exist

[root@MiWiFi-R3-srv ~]# ip link set dev eno50332216 master team0 ##这里指定设备名非连接名

eno50332216 e89195e9-5572-4951-9af5-15e8fbbaae8a 802-3-ethernet eno50332216

[root@MiWiFi-R3-srv ~]# nmcli connection modify eno50332216 connection.id myteam0-port3

myteam0-port3 e89195e9-5572-4951-9af5-15e8fbbaae8a 802-3-ethernet eno50332216

7、team相关命令

teamnl命令

teamnl [options] teamdevname command [command args]

-h --help Show this help

Commands:

ports

options

getoption OPT_NAME

setoption OPT_NAME OPT_VALUE

monitor OPT_STYLE

例如获取端口信息及mode模式。

# teamnl team0 ports

# teamnl team0 getoption mode

loadbalance

#

teamdctl命令

teamdctl [options] teamdevname command [command args]

-h --help Show this help

-v --verbose Increase output verbosity

-o --oneline Force output to one line if possible

-D --force-dbus Force to use D-Bus interface

-Z --force-zmq=ADDRESS Force to use ZeroMQ interface [-Z[Address]]

-U --force-usock Force to use UNIX domain socket interface

config dump

config dump noports

config dump actual

state

state dump

state view

state item get ITEMPATH

state item set ITEMPATH VALUE

port add PORTDEV

port remove PORTDEV

port present PORTDEV

port config update PORTDEV PORTCONFIG

port config dump PORTDEV

例如1：查看team0配置信息

#teamdctl team0 state

setup:

runner: loadbalance

ports:

eno16777736

link watches:

link summary: up

instance[link_watch_0]:

name: ethtool

link: up

down count: 0

eno33554992

eno50332216

例如2：查看team0配置不包含端口信息。

# teamdctl team0 config dump noports

{

"device": "team0",

"runner": {

"name": "loadbalance",SimSun;"> "tx_hash": [

"eth",SimSun;"> "ipv4",SimSun;"> "ipv6"

]

}

}

#

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