[root@bogon ~]# nmcli con sh 
NAME    UUID         TYPE   DEVICE  
Wired connection 2 bf0cf9b6-c7fb-4c0a-ada4-abfb650dd5f0 802-3-ethernet --   
Wired connection 1 5b4e0b3e-c469-404c-8839-76d18442fc20 802-3-ethernet --   
eno16777736   100e462e-c0d0-4271-9b5a-1c8e47ff0d03 802-3-ethernet eno16777736 
[root@bogon ~]# nmcli con del 5b4e0b3e-c469-404c-8839-76d18442fc20 bf0cf9b6-c7fb-4c0a-ada4-abfb650dd5f0
Connection 'Wired connection 1' (5b4e0b3e-c469-404c-8839-76d18442fc20) successfully deleted.
Connection 'Wired connection 2' (bf0cf9b6-c7fb-4c0a-ada4-abfb650dd5f0) successfully deleted.

[root@bogon ~]# nmcli con add type team ifname team0 con-name team0 config '{"runner":{"name":"roundrobin"}}'
Connection 'team0' (913f05c2-15d8-49a9-a35f-8bc5ee843c0c) successfully added.
[root@bogon ~]# nmcli con add type team-slave ifname eno50332208 con-name team0-port2 master team0
Connection 'team0-port2' (1583854c-1f85-4c76-8cc7-c643071d4b82) successfully added.
[root@bogon ~]# nmcli con mod team0 ipv4.address "192.168.121.100/24"
[root@bogon ~]# nmcli con mod team0 ipv4.method manual

[root@bogon ~]# nmcli con sh 
NAME   UUID         TYPE   DEVICE  
eno16777736 100e462e-c0d0-4271-9b5a-1c8e47ff0d03 802-3-ethernet eno16777736 
team0-port2 1583854c-1f85-4c76-8cc7-c643071d4b82 802-3-ethernet --   
team0-port1 bfd408b4-76d9-4f5c-ad5b-4d92430eb6ba 802-3-ethernet --   
team0  913f05c2-15d8-49a9-a35f-8bc5ee843c0c team   --

[root@bogon ~]# nmcli con up team0
Error: Connection activation failed: NetworkManager plugin for 'team' unavailable

[root@bogon ~]# lsmod | egrep *team*

[root@bogon ~]# systemctl restart network 
Job for network.service failed because the control process exited with error code. See "systemctl status network.service" and "journalctl -xe" for details.

[root@bogon ~]# systemctl status network
...
Mar 25 04:47:56 bogon network[2742]: Bringing up interface team0: Error: Connection activation failed: NetworkManager plugin for 'team' unavailable
Mar 25 04:47:56 bogon network[2742]: [FAILED]
...

[root@bogon ~]# yum list all | grep NetworkManager*
NetworkManager.x86_64     1:1.0.6-27.el7     @anaconda
NetworkManager-libnm.x86_64    1:1.0.6-27.el7     @anaconda
NetworkManager-tui.x86_64    1:1.0.6-27.el7     @anaconda
NetworkManager-wifi.x86_64    1:1.0.6-27.el7     @anaconda
NetworkManager-adsl.x86_64    1:1.0.6-27.el7     yum  
NetworkManager-bluetooth.x86_64   1:1.0.6-27.el7     yum  
NetworkManager-glib.x86_64    1:1.0.6-27.el7     yum  
NetworkManager-libreswan.x86_64   1.0.6-3.el7     yum  
NetworkManager-libreswan-gnome.x86_64 1.0.6-3.el7     yum  
NetworkManager-team.x86_64    1:1.0.6-27.el7     yum  
NetworkManager-wwan.x86_64    1:1.0.6-27.el7     yum

[root@bogon ~]# yum install NetworkManager-team -y

[root@bogon ~]# nmcli con sh 
NAME   UUID         TYPE   DEVICE  
eno16777736 100e462e-c0d0-4271-9b5a-1c8e47ff0d03 802-3-ethernet eno16777736 
team0-port2 1583854c-1f85-4c76-8cc7-c643071d4b82 802-3-ethernet --   
team0-port1 bfd408b4-76d9-4f5c-ad5b-4d92430eb6ba 802-3-ethernet --   
team0  913f05c2-15d8-49a9-a35f-8bc5ee843c0c team   -- 

[root@bogon ~]# nmcli con up team0
Error: Connection activation failed: NetworkManager plugin for 'team' unavailable

[root@bogon ~]# systemctl restart NetworkManager

[root@bogon ~]# nmcli con sh 
NAME   UUID         TYPE   DEVICE  
team0-port2 1583854c-1f85-4c76-8cc7-c643071d4b82 802-3-ethernet eno50332208 
eno16777736 100e462e-c0d0-4271-9b5a-1c8e47ff0d03 802-3-ethernet eno16777736 
team0-port1 bfd408b4-76d9-4f5c-ad5b-4d92430eb6ba 802-3-ethernet eno33554984 
team0  913f05c2-15d8-49a9-a35f-8bc5ee843c0c team   team0

[root@bogon ~]# teamdctl team0 st
setup:
 runner: roundrobin
ports:
 eno33554984
 link watches:
  link summary: up
  instance[link_watch_0]:
  name: ethtool
  link: up
  down count: 0
 eno50332208
 link watches:
  link summary: up
  instance[link_watch_0]:
  name: ethtool
  link: up
  down count: 0
[root@bogon ~]# teamnl team0 ports 
 4: eno50332208: up 1000Mbit FD 
 3: eno33554984: up 1000Mbit FD